codebase-memory-mcp
1-line summary: This MCP server provides fast, local code intelligence for AI coding agents — indexing repositories into a queryable knowledge graph of functions, classes, calls, routes, and more, with 17 tools for search, tracing, architecture analysis, impact mapping, and Cypher queries.
Capabilities:
Index repositories —
index_repositorybuilds a knowledge graph (full/moderate/fast/cross-repo modes), with optional artifact export (persistence).Search symbols —
search_graphsupports BM25, regex name/qualified-name patterns, label filters, degree bounds, and semantic vector search.search_codedoes graph-ranked text search (compact symbols, full source, or file paths).Trace call graphs & data flow —
trace_pathfinds callers/callees (inbound/outbound/both), data-flow paths (argument-aware), or cross-service edges, with depth control and risk labels.Get code & outlines —
get_code_snippetreads source for a qualified name;get_file_outlinelists declarations in a file (with label filters and paging).Query the graph with Cypher —
query_graphruns read-only openCypher (MATCH, WHERE, aggregates, variable-length paths, etc.) for multi-hop and aggregation analysis.Architecture overview —
get_architecturereturns languages, packages, entry points, routes, hotspots, boundaries, layers, clusters, cycles, file tree, and dependencies.Impact analysis —
detect_changesmaps a Git diff to affected symbols and blast radius with risk classification;compare_graphsdiffs two snapshots.Index management & diagnostics —
list_projects,delete_project,index_status, andcheck_index_coverage(exact-path/scope freshness, best-effort).ADR management —
manage_adroutlines, reads, updates, or rewrites only named sections of Architecture Decision Records.Schema introspection —
get_graph_schemalists node/edge counts, properties, and relationship patterns.Trace ingestion —
ingest_tracesvalidates runtime traces (edge creation not implemented).CLI access — all tools are available as one-shot local commands (e.g.,
codebase-memory-mcp cli search_graph ...).Built-in graph UI — serve an interactive 3D visualization at
localhost:9749with--ui=true.Configuration & auto-indexing — enable auto-index on session start, background watcher, custom file extensions, and environment-based resource limits.
Cross-repo intelligence — index multiple repos and link services via
CROSS_*edges, with multi-galaxy 3D UI layout.Team-shared graph artifact — commit a compressed
.codebase-memory/graph.db.zstsnapshot so teammates skip reindexing.No external dependencies — pure C, local-only, no language runtime or API keys; supports 162 languages via tree-sitter.
codebase-memory-mcp
The fastest and most efficient code intelligence engine for AI coding agents. Full-indexes an average repository in milliseconds, the Linux kernel (28M LOC, 75K files) in 3 minutes. Answers structural queries in under 1ms. Ships as a native executable with a small verified runtime-asset set for macOS, Linux, and Windows — download, run install, done.
High-quality parsing through tree-sitter AST analysis across all 162 languages, enhanced with Hybrid LSP semantic type resolution for Python, TypeScript / JavaScript / JSX / TSX, PHP, C#, Go, C, C++, Java, Kotlin, Rust, and Perl — producing a persistent knowledge graph of functions, classes, call chains, HTTP routes, and cross-service links. 17 MCP tools. No language runtime, hosted service, or API key. Plug and play across 45 supported automatic/conditional client surfaces.
Research — The design and benchmarks behind this project are described in the preprint Codebase-Memory: Tree-Sitter-Based Knowledge Graphs for LLM Code Exploration via MCP (arXiv:2603.27277). Evaluated across 31 real-world repositories: 83% answer quality, 10× fewer tokens, 2.1× fewer tool calls vs. file-by-file exploration.
Security & Trust — This tool reads your codebase and writes to your agent configuration files. That is what it is designed to do. If you prefer to audit before running, the full source is here. For each release product, three behaviourally identical executable candidates (unstripped, debug-stripped, stripped) are submitted to VirusTotal before testing; the selected candidate is then packaged with its SHA-256 unchanged. Release notes link every measured candidate result. Publication permits only the narrowly documented single-Microsoft
!mltolerance in SECURITY.md. All processing happens 100% locally; your code never leaves your machine. Found a security issue? We want to know — see SECURITY.md. Security is Priority #1 for us.
Why codebase-memory-mcp
Extreme indexing speed — Linux kernel (28M LOC, 75K files) in 3 minutes. RAM-first pipeline: LZ4 compression, in-memory SQLite, fused Aho-Corasick pattern matching. Memory released after indexing.
Plug and play — native executable plus authenticated release-owned assets for macOS (arm64/amd64), Linux (arm64/amd64), and Windows (amd64). The native install needs no Docker, language runtime, or API keys. Download →
install→ restart agent → done.162 languages — vendored tree-sitter grammars compiled into the binary. Nothing to install, nothing that breaks.
120x fewer tokens — 5 structural queries: ~3,400 tokens vs ~412,000 via file-by-file search. One graph query replaces dozens of grep/read cycles.
45 supported automatic/conditional client surfaces —
installconfigures detected clients and safely activates conditional clients only when their documented platform, marker, or explicit existing config path is present. See Multi-Agent Support for the complete matrix and manual/UI-only boundaries.Built-in graph visualization — 3D interactive UI at
localhost:9749, served from the binary itself.Infrastructure-as-code indexing — Dockerfiles, Kubernetes manifests, and Kustomize overlays indexed as graph nodes with cross-references.
Resourcenodes for K8s kinds,Modulenodes for Kustomize overlays withIMPORTSedges to referenced resources.17 MCP tools — search, trace, architecture, impact analysis, targeted index-coverage checks, Cypher queries, dead code detection, cross-service HTTP linking, ADR management, and more.
Related MCP server: Orihime
Quick Start
One-line install (macOS / Linux):
curl -fsSL https://raw.githubusercontent.com/DeusData/codebase-memory-mcp/main/install.sh | bashWith graph visualization UI:
curl -fsSL https://raw.githubusercontent.com/DeusData/codebase-memory-mcp/main/install.sh | bashWindows (PowerShell):
# 1. Download the installer
Invoke-WebRequest -Uri https://raw.githubusercontent.com/DeusData/codebase-memory-mcp/main/install.ps1 -OutFile install.ps1
# 2. (Optional but recommended) Inspect the script
notepad install.ps1
# 3. Unblock the downloaded file (removes Mark-of-the-Web restriction added by browsers/Invoke-WebRequest)
Unblock-File .\install.ps1
# 4. Run it
.\install.ps1
Note: If you see a script execution policy error, run
Set-ExecutionPolicy -Scope Process Bypassfirst, or invoke withPowerShell -ExecutionPolicy Bypass -File .\install.ps1.
Options: --skip-config (binary only, no agent setup), --dir=<path> (custom location).
Antivirus note: Microsoft Defender may flag a release binary as
Trojan:Script/Wacatac.B!ml. This is a known false positive — typically 61 of ~62 engines return clean, and the same detection family hitsgh, llama.cpp, Godot and Microsoft's own Go toolchain. See Antivirus False Positives for the evidence, how to verify the artifacts yourself, and how to report it if you think we are wrong.
Restart your coding agent. Say "Index this project" — done.
Download the archive for your platform from the latest release:
codebase-memory-mcp-<os>-<arch>.tar.gz(macOS/Linux) or.zip(Windows)
Extract and install (each archive includes
install.shorinstall.ps1):macOS / Linux:
tar xzf codebase-memory-mcp-*.tar.gz ./install.shWindows (PowerShell):
Expand-Archive codebase-memory-mcp-windows-amd64.zip -DestinationPath . Unblock-File .\install.ps1 .\install.ps1Restart your coding agent.
The install command automatically strips macOS quarantine attributes and ad-hoc signs the binary — no manual xattr/codesign needed.
The install command auto-detects installed coding agents and configures their documented MCP entries plus durable instructions, skills, and lifecycle hooks where supported.
Session Coordination Daemon
CBM automatically shares one per-account coordination daemon across Claude Code, Codex, OpenCode, and every other configured client. There is no opt-in setting for MCP servers or hook clients: the first daemon-backed CBM session starts it, each session registers its own work, and the final session shuts it down. The daemon owns long-lived background services such as watchers, shared indexing jobs, and the optional UI. Closing one session cancels work owned only by that session, while work still needed by another session continues.
The detached daemon does not depend on an MCP frontend's stderr. It keeps owner-only durable records under the canonical ${CBM_CACHE_DIR}/logs directory (default ~/.cache/codebase-memory-mcp/logs):
File | Contents |
| Daemon lifecycle, watcher/indexing, UI, resource, and error events. |
| Exact-build, coordination-ABI, and cache-root admission conflicts. |
| Install/update/uninstall activation progress and outcomes. |
Thin frontends still write immediate startup and session-specific errors to their own stderr; MCP JSON-RPC stdout remains clean.
All active CBM processes must run the exact same version, executable build, coordination ABI, and canonical cache root. Equivalent CBM_CACHE_DIR aliases resolve to the same root; a genuinely different root is rejected while any CBM process is active. MCP servers, hooks, one-shot CLI commands, temporary index workers, and the daemon share a crash-safe OS admission barrier; starting an ordinary conflicting process fails before doing work and records an explicit conflict in ${CBM_CACHE_DIR}/logs/daemon-conflicts.ndjson.
The native install, update, and uninstall commands are the deliberate exception to that conflict rule. Download, verification, and private same-filesystem staging happen first so a bad candidate never disrupts active work. Activation then publishes account-wide maintenance intent, asks the daemon and every temporary local operation to cancel, and waits to a finite deadline for all coordinated CBM processes to exit. It holds the admission and lifetime barriers exclusively while changing the active binary, configuration, PATH, or indexes. New CBM work cannot enter during this window. Activation progress and results are recorded in ${CBM_CACHE_DIR}/logs/activation-events.ndjson, and a successful command tells you to restart open coding-agent sessions so they launch the activated build.
Package-manager setup (npm, PyPI, or Go) verifies and publishes a coherent private cached runtime set. Sidecars are replaced before the executable with per-file atomic renames; an interrupted multi-file publication is detected and repaired on the next launch rather than being described as one crash-atomic filesystem transaction. It does not replace the active native installation and therefore does not stop running CBM sessions. When that cached binary is executed, it still enters the same exact-build admission barrier. The shell and PowerShell installers invoke the verified candidate's native install command, so they do receive the full account-wide activation guarantee.
The ordinary cli mode is intentionally separate: it runs one command locally and never starts or connects to the coordination daemon, registers a daemon session, or starts watchers/UI. Its only shared state is the OS admission barrier plus per-project locks for graph mutations. While the command is running, a temporary monitor lets activation cancel that operation and its supervised worker safely; the monitor exits with the command and never becomes a standing daemon. See CLI Mode for details.
Graph Visualization UI
The graph UI is built into the binary — every install on every channel has it. Then run it:
codebase-memory-mcp --ui=true --port=9749Open http://localhost:9749 in your browser. The UI is owned by the shared coordination daemon, so concurrent agent sessions do not start duplicate HTTP servers.
Auto-Index
Enable automatic indexing on MCP session start:
codebase-memory-mcp config set auto_index trueWhen enabled, new projects are indexed automatically on first connection. Previously-indexed projects are registered with the background watcher for ongoing git-based change detection. Configurable file limit: config set auto_index_limit 50000.
Watcher registration is controlled separately by auto_watch (default true). Set config set auto_watch false to keep a session from registering its project with the background watcher — useful when working across many projects and you want each session contained to explicit indexing.
To turn the watcher off entirely, set config set watcher_enabled false (default true): the background poll thread never starts and no project is registered, while auto_index and manual index_repository keep working. Unlike auto_watch — which is consulted per session — watcher_enabled is read once when the background daemon starts, so run codebase-memory-mcp daemon stop after changing it; reconnecting your MCP client alone will not restart the daemon. See docs/CONFIGURATION.md.
Keeping Up to Date
Updates run from the install script on every platform, not from inside the running binary. codebase-memory-mcp update validates your flags and then prints the exact command to run:
# macOS / Linux
bash "<install-dir>/install.sh"# Windows
powershell -ExecutionPolicy Bypass -File "<install-dir>\install.ps1"The install script is placed next to the binary at install time, so the printed path resolves beside the executable. It is idempotent, so re-running it is the update: it stops the daemon, retires the running binary, installs the new one, and cleans up.
Why it works this way. On Windows it is a hard requirement — a running executable cannot replace its own image, so the swap has to happen from a process that is not the binary being replaced. On macOS and Linux it is a deliberate choice: an in-process updater is structurally a downloader (fetch an archive, verify it, unpack it, mark a file executable, run it), and shipping that composite in every binary to serve a command most people run a handful of times is a poor trade. The release archives now carry no download URLs at all, and cbm makes no network request of its own accord — it does not check for new versions in the background, and nothing phones home. You find out about releases from the install script, your package manager, or GitHub.
If PowerShell refuses to run the script because the file came from the internet, Unblock-File it first.
Installed through npm or pip? Update with your package manager on every platform (npm install -g codebase-memory-mcp@latest / pip install -U codebase-memory-mcp).
Uninstall
codebase-memory-mcp uninstallRemoves owned agent config entries, skills, hooks, instructions, and the installed binary. Existing graph indexes are listed and deleted only after confirmation.
The install script placed beside the binary is reported, not deleted — uninstall prints its path and the rm command for it. It is left alone on purpose: it may be your own copy, a symlink into a checkout, or managed by a package manager, and an uninstaller should not delete a file it cannot prove it owns.
Features
Graph & analysis
Architecture overview:
get_architecturereturns languages, packages, entry points, routes, hotspots, boundaries, layers, and clusters in a single callArchitecture Decision Records:
manage_adrpersists architectural decisions across sessionsLouvain community detection: Discovers functional modules by clustering call edges
Git diff impact mapping:
detect_changesmaps uncommitted changes to affected symbols with risk classificationCall graph: Resolves function calls across files and packages (import-aware, type-inferred)
Dead code detection: Finds functions with zero callers, excluding entry points
Cypher-like queries:
MATCH (f:Function)-[:CALLS]->(g) WHERE f.name = 'main' RETURN g.name
Search
Semantic search (
semantic_query): vector search across the entire graph, powered by bundled Nomicnomic-embed-codeembeddings (40K tokens, 768d int8) compiled into the binary — no API key, no Ollama, no Docker. 11-signal combined scoring (TF-IDF, RRI, API/Type/Decorator signatures, AST profiles, data flow, Halstead-lite, MinHash, module proximity, graph diffusion).BM25 full-text search via SQLite FTS5 with
cbm_camel_splittokenizer (camelCase / snake_case aware)Structural search (
search_graph): regex name patterns, label filters, min/max degree, file scopingCode search (
search_code): graph-augmented grep over indexed files only
Cross-service linking
HTTP route ↔ call-site matching with confidence scoring
gRPC, GraphQL, tRPC service detection with protobuf Route extraction
Channel detection (
EMITS/LISTENS_ON) for Socket.IO, EventEmitter, and generic pub-sub patterns across 8 languages with constant resolution
Cross-repo intelligence
CROSS_*edges link nodes across multiple repos indexed under the same storeMulti-galaxy 3D UI layout for cross-repo architecture visualization
Cross-repo architecture summary combining services, routes, and dependencies across the indexed fleet
Edge types (selected)
CALLS— a callable is invoked at the source siteCALL_REFERENCE— a callable is used at a supported reference site (for example, a direct value argument) and resolves to one exact targetUSAGE— an identifier is used, but a unique callable target is not proven (including ambiguous or complex expressions)IMPORTS,DEFINES,IMPLEMENTS,INHERITSHTTP_CALLS,ASYNC_CALLS(cross-service)EMITS,LISTENS_ON(channels)DATA_FLOWSwith arg-to-param mapping + field access chainsSIMILAR_TO(MinHash + LSH near-clone detection, Jaccard scored)SEMANTICALLY_RELATED(vocabulary-mismatch, same-language, score ≥ 0.80)
Indexing pipeline
158 vendored tree-sitter grammars compiled into the binary
Generic package / module resolution — bare specifiers like
@myorg/pkg,github.com/foo/bar,use my_crate::fooresolved via manifest scanning (package.json,go.mod,Cargo.toml,pyproject.toml,composer.json,pubspec.yaml,pom.xml,build.gradle,mix.exs,*.gemspec)Infrastructure-as-code indexing — Dockerfiles, Kubernetes manifests, Kustomize overlays as graph nodes
Hybrid LSP semantic type resolution for Python, TypeScript / JavaScript / JSX / TSX, PHP, C#, Go, C, C++, Java, Kotlin, Rust, and Perl — a lightweight C implementation of language type-resolution algorithms, structurally inspired by and compatible with major language servers including tsserver / typescript-go, pyright, gopls, Roslyn, Eclipse JDT, and rust-analyzer (parameter binding, return-type inference, generic substitution, JSX component dispatch, JSDoc inference for plain JS files, namespace + trait + late-static-binding resolution for PHP, file-scoped namespaces + records + LINQ method syntax for C#, class-hierarchy + overload + lambda resolution for Java, extension-function + scope-function resolution for Kotlin, trait-method + UFCS resolution for Rust)
RAM-first pipeline: LZ4 compression, in-memory SQLite, single dump at end. Memory released after.
Distribution & operation
Native runtime set, zero infrastructure services: SQLite-backed, persists to
~/.cache/codebase-memory-mcp/Auto-sync: Background watcher detects file changes and re-indexes automatically
Route nodes: REST endpoints are first-class graph entities
CLI mode:
codebase-memory-mcp cli search_graph '{"project": "my-project", "name_pattern": ".*Handler.*"}'Available on: npm, PyPI, Homebrew, Scoop, Winget, Chocolatey, AUR,
go install
Team-Shared Graph Artifact
Commit a single compressed file to your repo and your teammates skip the reindex.
.codebase-memory/graph.db.zst is a zstd-compressed snapshot of the knowledge graph that lives next to your source. When you index, the artifact is written or refreshed; when a teammate clones the repo and runs codebase-memory-mcp for the first time, the artifact is decompressed and incremental indexing fills in their local diff.
Format: SQLite database, indexes stripped,
VACUUM INTOcompacted, then zstd 1.5.7 compressed (8–13:1 ratio typical)Two tiers:
Best (
zstd -9+ index strip +VACUUM INTO) — written on explicitindex_repositoryFast (
zstd -3) — written by the watcher for low-latency incremental updates
Bootstrap: when no local DB exists but the artifact is present,
index_repositoryimports the artifact first, then runs incremental indexing — avoiding the full reindex costNo merge pain: a
.codebase-memory/.gitattributesline withmerge=oursis auto-created on first export, so concurrent edits don't produce conflicts on the binary artifactCommit it deliberately: the artifact is rewritten on every index, including the watcher's Fast tier, and git stores each rewrite as a full new blob. Committing every refresh is what turns a 20 MB file into gigabytes of history — one team reached ~6 GB across ~350 commits of this single path. Pick a cadence (a release, a milestone, a nightly job) rather than committing every save.
Git LFS, if it must move on every commit: track it from the repo-root
.gitattributesand leave the auto-created.codebase-memory/.gitattributesin place — the nearer file goes on supplyingmerge=ours, and onlyfiltercomes from the root:.codebase-memory/graph.db.zst filter=lfs diff=lfs merge=lfs -textTrack only the
.zst;artifact.jsonis small and carries the schema version. The attribute applies to future commits only, so a repo that already has the blobs in history needsgit-filter-repoto rewrite them first. Two costs to weigh before adopting it: GitHub meters LFS storage and bandwidth, and its objects cannot be pruned without contacting support; and every teammate needsgit lfs install— without it their checkout leaves a pointer file where the artifact should be, the integrity-checked import refuses it, and they fall back to a full reindex.Optional: never committed unless you want it. Add
.codebase-memory/to.gitignoreif you prefer everyone to reindex from scratch.
The result is similar in spirit to graphify's graphify-out/ directory, but as a single compressed file with explicit two-tier export, integrity-checked import, and zero merge friction.
How It Works
codebase-memory-mcp is a structural analysis backend — it builds and queries the knowledge graph. It does not include an LLM. Instead, it relies on your MCP client (Claude Code, or any MCP-compatible agent) to be the intelligence layer.
You: "what calls ProcessOrder?"
Agent calls: trace_path(function_name="ProcessOrder", direction="inbound")
codebase-memory-mcp: executes graph query, returns structured results
Agent: presents the call chain in plain EnglishWhy no built-in LLM? Other code graph tools embed an LLM for natural language → graph query translation. This means extra API keys, extra cost, and another model to configure. With MCP, the agent you're already talking to is the query translator.
Performance
Benchmarked on Apple M3 Pro:
Operation | Time | Notes |
Linux kernel full index | 3 min | 28M LOC, 75K files → 4.81M nodes, 7.72M edges |
Linux kernel fast index | 1m 12s | 1.88M nodes |
Django full index | ~6s | 49K nodes, 196K edges |
Cypher query | <1ms | Relationship traversal |
Name search (regex) | <10ms | SQL LIKE pre-filtering |
Dead code detection | ~150ms | Full graph scan with degree filtering |
Trace call path (depth=5) | <10ms | BFS traversal |
RAM-first pipeline: All indexing runs in memory (LZ4 HC compressed read, in-memory SQLite, single dump at end). Memory is released back to the OS after indexing completes.
Token efficiency: Five structural queries consumed ~3,400 tokens via codebase-memory-mcp versus ~412,000 tokens via file-by-file grep exploration — a 99.2% reduction.
To measure comparable quality, latency, and agent-efficiency metrics on your own workload, see Measuring quality, latency, and agent savings. Exact reproduction of the figures above requires the original inputs and raw artifacts.
Troubleshooting & Diagnostics
codebase-memory-mcp runs 100% locally and collects no telemetry — your code, queries, environment, and usage never leave your machine. That privacy guarantee also means that when you hit something we can't reproduce on our side (a slow memory climb over hours, a performance regression, a leak that only appears after days of real use), we have no data at all unless you choose to send it. Here is how to capture it yourself.
Capture a diagnostics log
Set CBM_DIAGNOSTICS=1 before the first daemon-backed MCP session starts, then reproduce the problem (let it run as long as it takes — a slow leak needs time to show in the trend). The shared daemon captures this setting from the session that starts it. If it is already running, close all daemon-backed sessions so it exits before changing the setting. The daemon creates a fresh owner-private cbm-diagnostics-<pid>-<random> directory below the system temp directory ($TMPDIR or /tmp on macOS/Linux, %TEMP% on Windows). The exact paths are recorded by the diagnostics.start event in ${CBM_CACHE_DIR}/logs/cbm-daemon.log:
File | What it is |
| The memory trajectory — one JSON line every 5 s with |
| The latest snapshot only — handy for a quick live check. Removed on clean exit. |
The private randomized directory prevents another local account from pre-placing a link or special file at a predictable diagnostics path. Its <pid> component is the shared daemon's process ID, also recorded by the daemon.start event. Set the variable consistently in the env block of each agent's MCP server config, or export it before launching the first session.
What to share
When you open a memory/performance issue, attach the .ndjson trajectory — it contains no source code or query text, only resource counters. If you'd rather not attach a file, paste it (or an agent's summary of it) into the issue: your assistant can read the NDJSON directly and report whether rss/committed grow monotonically, how fast, and relative to query count — which is exactly what we need to find the cause.
Installation
Pre-built Binaries
Platform | Archive |
macOS (Apple Silicon) |
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macOS (Intel) |
|
Linux (x86_64) |
|
Linux (ARM64) |
|
Windows (x86_64) |
|
Every release includes checksums.txt with SHA-256 hashes. The executable is self-contained — no adjacent data file is required. Linux -portable archives contain the fully static builds; ordinary platform archives use their native system ABI.
Windows note: SmartScreen may show a warning for unsigned software. Click "More info" → "Run anyway". Verify integrity with
checksums.txt.
Setup Scripts
macOS / Linux:
curl -fsSL https://raw.githubusercontent.com/DeusData/codebase-memory-mcp/main/scripts/setup.sh | bashWindows (PowerShell):
irm https://raw.githubusercontent.com/DeusData/codebase-memory-mcp/main/scripts/setup-windows.ps1 | iexAUR (Arch Linux)
yay -S codebase-memory-mcp-binparu -S codebase-memory-mcp-binThe codebase-memory-mcp-bin package is available at: https://aur.archlinux.org/packages/codebase-memory-mcp-bin
Nix (flake)
The flake exposes two server packages plus the standalone frontend:
Package | Contents |
| Standard server, no UI |
| Server with the graph UI embedded ( |
| Just the built frontend assets ( |
Run directly without installing:
# Standard server
nix run github:DeusData/codebase-memory-mcp
# Server with the embedded graph UI
nix run github:DeusData/codebase-memory-mcp#codebase-memory-mcp-ui -- --ui=true --port=9749
# then open http://127.0.0.1:9749Or build a binary into ./result/bin/codebase-memory-mcp:
nix build github:DeusData/codebase-memory-mcp # standard
nix build github:DeusData/codebase-memory-mcp#codebase-memory-mcp-ui # with UIWorking in a clone? Use . in place of the flake URL, e.g. nix run .#codebase-memory-mcp-ui -- --ui=true, or drop into a shell that puts the binary on PATH with nix shell .#codebase-memory-mcp-ui.
Note: launched by hand (not from an MCP client) the server exits as soon as
stdincloses — that's normal MCP behaviour. Keepstdinopen while testing the UI, e.g.sleep infinity | codebase-memory-mcp --ui=true --port=9749. Thecodebase-memory-mcp-uipackage embeds the UI at build time;nix run'ing the standarddefaultpackage with--ui=truewill refuse to start the HTTP server.
Install via Claude Code
You: "Install this MCP server: https://github.com/DeusData/codebase-memory-mcp"Build from Source
Requirement | Check | Install |
C compiler (gcc or clang) |
| macOS: |
C++ compiler |
| Same as above |
zlib | — | macOS: included, Linux: |
Git |
| Pre-installed on most systems |
git clone https://github.com/DeusData/codebase-memory-mcp.git
cd codebase-memory-mcp
scripts/build.sh --with-ui # the shipped composition (graph UI embedded)
scripts/build.sh # without the UI (development only)
# Binary at: build/c/codebase-memory-mcp (codebase-memory-mcp.exe on Windows)Every platform ships one self-contained executable: the graph UI and the agent integration templates are linked into the binary, so an extracted archive is immediately complete.
Run the test suite (8,060 tests across 141 suites):
scripts/test.sh # full: clean sanitizer build + all suites + guards
scripts/test.sh --suites <name> # one suite, incremental, seconds
build/c/test-runner --list-suites # what is availablescripts/test.sh is the same entry the CI gates run, so a local pass means the same thing a CI pass does. The canonical local artifact-flow check builds both stripped/unstripped candidates, defaults to the stripped candidate for this explicitly unscanned local run, packages those exact bytes, extracts the archive, and smokes it:
scripts/ci/smoke-artifact.sh <linux|darwin|windows> <amd64|arm64>scripts/package-release.sh is intentionally a lower-level immutable boundary:
it accepts only an already-final --selected-binary plus its
--expected-sha256; it never builds, strips, signs, or relinks the executable.
Manual MCP Configuration
Add to ~/.claude.json (user scope) or project .mcp.json:
{
"mcpServers": {
"codebase-memory-mcp": {
"command": "/path/to/codebase-memory-mcp",
"args": []
}
}
}Restart your agent. Verify with /mcp — you should see codebase-memory-mcp with 17 tools.
Multi-Agent Support
install configures 45 client surfaces: 39 detected automatically and 6
conditional or explicit. “Conditional” means the installer writes only when the
documented platform or an explicit, already-existing config path proves the
target is active. It never flips experimental feature flags, enables plugins,
YOLO modes, global permission bypasses, or third-party instruction trust.
Where a client has a documented custom-agent format, the installer creates three exact-owned definitions from one canonical contract:
Scout (Tier 1) — about 3–4 narrow calls for fast positive, provisional discovery; no absence, exhaustive-impact, or dead-code claims.
Verify (Tier 2, default) — task-directed graph evidence, exact source checks, path coverage for every cited file, and scope coverage before negative claims.
Auditor (Tier 3) — bounded scope, current index generation, complete relevant pagination, broader relationship checks, and explicit unresolved limitations.
Every direct tier batches check_index_coverage for its evidence paths and reads
flagged ranges or skipped/excluded files directly. A clean coverage result means
only “no recorded gap,” never proof of completeness. Clients without safe child
MCP access receive the same three tiers as parent-handoff agents; the parent must
supply project, generation, pagination state, graph evidence, and coverage
results. Updates migrate only byte-identical prior Verify definitions and never
overwrite user-modified agents.
Agent | Activation | MCP config | Durable context / augmentation |
Claude Code | Detected |
| Skill + three exact-tool graph agents; |
Codex CLI | Detected |
| Managed |
Gemini CLI | Detected |
|
|
Zed | Detected | platform |
|
OpenCode | Detected |
|
|
Antigravity | Detected |
|
|
Aider | Detected | — |
|
KiloCode | Detected |
| Rule + three graph-tool subagents with deny-by-default permissions |
VS Code | Detected | platform |
|
Cursor | Detected |
| Skill + three read-only parent-handoff agents; context hooks withheld because session injection races and |
Windsurf | Detected |
| Always-on |
Augment / Auggie | Detected |
| Rule, three read-only handoff subagents, |
OpenClaw | Detected |
| Active-workspace |
Kiro | Detected |
| Steering, skill, three JSON agents with isolated Scout/Analysis-profile MCP and explicit graph-tool selectors ( |
Junie | Detected |
| Skill + three graph subagents for EAP-capable builds; Scout and Analysis server aliases hard-limit the tier tool surfaces; no ineffective EAP |
Hermes | Detected |
| Skill + fail-open |
OpenHands | Detected |
| Shared |
Cline | Detected |
| Rule + skill; automatic file hooks withheld because they auto-activate and their output is not reliably consumed; child agents cannot use MCP |
Warp | Detected, skill only | UI, Warp Drive, or per invocation (manual) | Shared |
Qwen Code | Detected |
|
|
GitHub Copilot CLI | Detected |
| Instructions, skill, three read-only agents; |
Factory Droid | Detected |
|
|
Crush | Detected |
| Managed context path with explicit parent-to-child handoff |
Goose | Detected |
|
|
Mistral Vibe | Detected |
|
|
Grok Build | Detected |
| Owned |
Qoder CLI | Detected |
| Skill, three directly MCP-attached agents with named-server scoping and exact per-tier graph-tool lists; |
Kimi Code CLI | Detected |
| Same-root |
GitLab Duo CLI | Detected |
| Fail-open user |
Rovo Dev CLI | Detected | configured override or | Global |
Amp | Detected |
| Colocated skill + |
Devin CLI / Local | Detected |
| Same-root |
Tabnine | Detected |
| MCP only; no experimental/YOLO setting |
Continue / cn | Conditional | Existing | MCP only |
Visual Studio | Conditional, Windows |
| MCP only |
TRAE | Conditional | Existing | MCP only |
Roo Code | Conditional | Existing | MCP only |
Amazon Q Developer IDE | Detected |
| MCP only |
CodeBuddy Code CLI | Detected |
|
|
IBM Bob Shell | Detected by |
| Shared rule; no invented hook or agent |
Pochi | Detected |
|
|
Pi | Detected | — |
|
IBM Bob IDE | Conditional | Existing | Shared rule + IDE skill; no invented hook or agent |
Oh My Pi (omp) | Detected | Effective agent directory ( | Skill and three direct-MCP graph-tool subagents (Scout/Verify/Auditor); preserves user |
Sourcegraph Cody | Explicit opt-in | Existing | MCP only |
For Codex, install keeps only a tiny managed activation pointer in global
$CODEX_HOME/AGENTS.md; all detailed behavior lives in the installed codebase-memory skill.
Fresh installs create the pointer, upgrades replace the legacy full managed block while preserving
all user-owned bytes, and uninstall removes only the managed pointer.
Sessions, compaction, and subagents
Hooks installed by this project are fail-open and context-only. Claude Code's
PreToolUse observes Grep/Glob/Bash and injects matching graph symbols as
additionalContext; PostToolUse on Read adds targeted coverage context when
the graph could not fully parse or index that file. It never denies or replaces
the requested tool call.
Claude Code, Codex CLI, Qwen Code, GitHub Copilot CLI, and VS Code's Copilot
runtime receive paired session/subagent context where the vendor exposes a
documented context-output contract. Codex users must review and trust installed
hooks through /hooks; changing a hook definition changes its trust hash, so an
update can require re-trust. Qoder uses SessionStart, SubagentStart, and
post-Read coverage, including its documented PowerShell executor on Windows.
Kimi uses UserPromptSubmit, while Hermes uses pre_llm_call; both retain their
documented Windows execution paths. Devin installs
UserPromptSubmit and PostCompaction on macOS/Linux and adds SessionStart
only when Claude's equivalent managed hook is not present. GitLab Duo gets a
narrowly scoped macOS/Linux user SessionStart entry on its experimental hook
surface. GitLab Duo, Devin, and Factory hooks are withheld on Windows
because those vendors do not document a deterministic shell/executor contract
there. Gemini CLI, Factory Droid, and Augment also add documented post-read/view
coverage context but expose no equivalent documented child-start context.
For runtimes without a stable context-producing lifecycle event, durable files
carry the contract across fresh sessions and compaction: verify the graph project
and index freshness, query structural facts in the parent, then pass the project,
qualified symbols, paths, and call-chain evidence in every delegated task.
Claude, Codex, Gemini, Kiro, Qwen, Copilot, CodeBuddy, OpenCode, Kilo, Vibe,
Qoder, Junie, Factory, and Grok Build receive Scout, Verify, and Auditor graph profiles.
Kiro embeds this MCP server with --tool-profile scout for Scout and
--tool-profile analysis for Verify/Auditor. Junie registers equivalent named
server aliases because its subagent schema filters by server rather than by
individual tool. Both process profiles use positive allowlists: Scout exposes
seven fast inspection tools, Analysis exposes eleven, and future or mutating
tools remain unavailable until explicitly reviewed. If either Junie alias
collides with user configuration, the installer preserves it and installs
parent-handoff profiles instead. Qoder combines its documented named-server
selection with exact tier-specific MCP tool IDs. Factory uses exact registered
MCP tool IDs without its additive mcpServers field, which would expose the
whole server. Codex, Kilo, Vibe, and other capable formats likewise enumerate
the narrowest supported tool set. Rovo, Cursor, Augment, Pochi, and Cline use parent handoff where direct
child MCP is unavailable or unsafe; Pochi is limited to readFile, and Cline
child agents cannot use MCP.
Cline's file hooks auto-activate when present, and current Cline does not
reliably consume their context output, so automatic adapters are withheld and
older owned adapters are cleaned up. CodeBuddy's beta, version-gated hooks are
not auto-installed. Junie's EAP
SessionStart output is documented as ignored, so no context hook is installed.
Junie custom agents remain EAP-dependent. Qoder can resolve higher-priority
project or plugin agents before user agents with the same name; reload the
client after installation or profile changes.
Cursor context
hooks are withheld: session context injection has a known race, subagentStart
is control-only, and read-only subagents cannot safely receive MCP access. Grok Build's
passive hook events (SessionStart, SubagentStart, PostToolUse) discard
stdout and PreToolUse honors only deny/rewrite decisions, so its context hooks
are withheld; Grok also reads Claude and Cursor MCP, skill, and hook files
through its compat layer, and the native config.toml entry shadows that copy
by name. Rovo
has no documented session context-output hook, and Bob
documents neither a suitable hook nor a custom-agent surface. Those surfaces are
not approximated with invented augmentation. Kimi plugins, Amp plugins, and
GitLab experimental global skills remain opt-in.
OpenClaw reinjects the Codebase Knowledge Graph (codebase-memory-mcp) AGENTS
section after compaction and places the same guidance in TOOLS.md, the bootstrap
files inherited by its subagents. Automatic augmentation covers the active/default
workspace. Separate agents.list[].workspace directories require making that
workspace active for installation or copying the managed block there.
The installed Claude shim is named cbm-code-discovery-gate for backward
compatibility; despite the legacy name, it never gates or blocks.
Manual or UI-managed integrations
These are intentionally not counted as automatic installs: Qodo MCP is added through its UI and may be governed by enterprise allowlists; Warp MCP is managed through Warp Drive/UI or per invocation (only the shared skill is automatic); JetBrains AI Assistant / ACP is IDE-managed; GitHub Copilot coding agent, Jules, and CodeRabbit are cloud/repository-managed; Replit exposes a remote/service integration rather than a stable local user-global client; BLACKBOX AI does not document a stable arbitrary user-global MCP/instruction/agent schema; Plandex has no stable global registry safe to mutate; and SWE-agent uses explicit YAML and is no longer a suitable automatic global target.
CLI Mode
Every MCP tool can be invoked as a local, one-shot command. CLI tools neither start nor connect to the coordination daemon and leave no standing process behind. They hold a crash-safe exact-build admission lease only for the command lifetime. index_repository is the only exception internally: it starts a temporary, exact-build supervised worker for the index, then stops that worker before the CLI command exits; the worker holds its own lease until exit.
Commands that mutate graph data use shared OS-backed, per-project locks. This serializes conflicting work from CLI and MCP sessions on the same project while allowing unrelated projects to proceed independently.
When stderr is an interactive terminal, the CLI automatically shows lifecycle and indexing progress. Pass --progress to force the same feedback when stderr is redirected or the command is run non-interactively. Pass --quiet to disable automatic terminal progress and ordinary diagnostics while retaining errors; it cannot be combined with --progress or outer cli --verbose. Routine informational logs are quiet by default; pass outer cli --verbose to include them. Progress and logs use stderr while stdout remains reserved for the command result. Read tools return a compact tree by default; pass a tool's --format json for machine-readable payload JSON, or outer --json for the full MCP envelope.
Large compact-tree tables may start with a response-local <section>_refs directory and an explicit <section>_ref_rule. A cell such as @0+handler.go reconstructs to ref 0's prefix plus handler.go. References are local to that sibling <section> table and expansion is non-recursive: entries inside <section>_refs are always literal prefixes. This is limited to declared path and qualified-name columns and activates only when the exact rendered table is at least 15% and 64 bytes smaller and a conservative model-neutral token-shape proxy also improves by at least 1%. Search and trace likewise render direct and prefix-grouped tree shapes and keep the smaller complete representation, so singleton or scattered answers do not pay directory overhead. Keys are declared once per table but never cryptically abbreviated, and --format json keeps stable literal strings for machine consumers. Both gates are deterministic; exact token counts still depend on the caller's tokenizer.
Lean responses truncate semantically, never by cutting arbitrary bytes from code or identifiers. Ranked graph rows are retained ahead of raw grep rows and diagnostic summaries; omitted rows/sections report totals, has_more, and a strictly advancing continuation offset or cursor. If even the first whole row cannot fit, CBM asks for a higher budget and emits no self-looping cursor. max_output_tokens is model-neutral sizing guidance: CBM enforces a deterministic ceiling of four UTF-8 bytes per requested token, so it is not a tokenizer-exact count. Detail flags such as diagnostics, source_mode, and detail opt into heavier fields. search_code pages ranked rows with result_limit/result_offset (limit remains a compatibility alias), raw rows with raw_limit/raw_offset, and directory summaries with directory_limit/directory_offset. Raw lines default to a UTF-8-safe match-centered preview; each row reports content_start_byte, returned/total byte counts, match byte bounds when known, and a content continuation offset. Pass raw_content_offset to page the original line without moving the raw-row cursor. match_limit and source_max_lines bound per-result details, with exact omission metadata. detect_changes pages changed files, impacted symbols, and module summaries independently; prefer its snapshot-bound *_cursor continuations, which reject changed commits, worktree bytes, graph generation, or semantic arguments instead of silently skipping or duplicating rows.
Every response is standard UTF-8. Identifiers, paths, and raw search previews preserve POSIX byte-string identities: a preserved value containing malformed UTF-8 is emitted reversibly as @bytes:<lowercase hex of every original byte>. A valid preserved value that literally begins with the reserved @bytes: or @utf8: prefix is emitted as @utf8:<original value>, so decoding is unambiguous: strip one @utf8: prefix for literal UTF-8, or hex-decode one @bytes: prefix for original bytes. Ordinary valid UTF-8 is unchanged and pays no output-token overhead. To keep code readable, source bodies replace malformed UTF-8 with U+FFFD; use the pageable raw search preview when byte-exact source inspection is required.
Use cli <tool> --help to see the flags generated from that tool's input schema:
codebase-memory-mcp cli index_repository --repo-path /path/to/repo
codebase-memory-mcp cli list_projects
# Use the "name" returned by list_projects as the project value.
codebase-memory-mcp cli search_graph --project my-project --name-pattern '.*Handler.*' --label Function
codebase-memory-mcp cli trace_path --project my-project --function-name Search --direction both
codebase-memory-mcp cli query_graph --project my-project --query 'MATCH (f:Function) RETURN f.name LIMIT 5'
# Force human-readable progress without contaminating stdout.
codebase-memory-mcp cli --progress index_repository --repo-path /path/to/repo
# Suppress automatic terminal progress and non-error diagnostics.
codebase-memory-mcp cli --quiet list_projects --format json
codebase-memory-mcp cli search_graph --project my-project --label Function --format json
codebase-memory-mcp cli list_projects --format json --detail stats | jq '.projects[].name'JSON arguments can also be piped on stdin, for tools that take arguments. A tool whose input schema declares none — list_projects — never reads stdin, so it stays responsive when it inherits a pipe the caller never closes (the default for child_process.spawn and similar wrappers). Inline JSON remains accepted for backward compatibility but is deprecated in favor of flags, --args-file, or stdin.
MCP Tools
Indexing
Tool | Description |
| Index a repository into the graph. Auto-sync keeps it fresh after that. |
| List all indexed projects with node/edge counts. |
| Remove a project and all its graph data. |
| Check indexing status of a project. |
| Check whether exact paths or a scope are indexed and fresh. A clean result means no recorded gap, not proof of completeness. |
Querying
Tool | Description |
| Structural, BM25, and semantic search. Page structural rows with |
| BFS traversal — who calls a function and what it calls (alias: |
| Map git diff to affected symbols + blast radius with risk classification. |
| Execute Cypher-like graph queries (read-only). |
| Node/edge counts, relationship patterns, property definitions per label. Run this first. |
| Compare two indexed snapshots: node/edge additions and removals between a base and a target. |
| Read source code for a function by qualified name. |
| Declaration outline of one repository-relative file in source order, with optional label filter and paging. |
| Codebase overview: languages, packages, routes, hotspots, clusters, ADR. |
| Grep-like text search within indexed project files. |
| CRUD for Architecture Decision Records ( |
| Ingest runtime traces to validate HTTP_CALLS edges. |
manage_adr(mode='set_sections') writes one or more sections by name and splices them into the stored document, so text outside the named sections — including a preamble, code fences and section ordering — is preserved byte-for-byte. Any ## Heading works, not just the conventional PURPOSE / STACK / ARCHITECTURE / PATTERNS / TRADEOFFS / PHILOSOPHY set; names match exactly, including case. Writing the same section twice is a no-op, so a retry after a lost response cannot duplicate content.
manage_adr query modes (get and sections) use the server's cached query store so they can proceed while a same-project reindex is running. If another process publishes a replacement store during reindexing, they can return the pre-publication ADR until idle eviction refreshes that cache. Updates remain serialized through the project mutation guard.
Graph Data Model
Node Labels
Project, Package, Folder, File, Module, Class, Function, Method, Interface, Enum, Type, Route, Resource
Edge Types
CONTAINS_PACKAGE, CONTAINS_FOLDER, CONTAINS_FILE, DEFINES, DEFINES_METHOD, IMPORTS, CALLS, CALL_REFERENCE, HTTP_CALLS, ASYNC_CALLS, IMPLEMENTS, HANDLES, USAGE, CONFIGURES, REFERENCES_FILE, WRITES, MEMBER_OF, TESTS, USES_TYPE, FILE_CHANGES_WITH
Qualified Names
get_code_snippet uses qualified names: <project>.<path_parts>.<name>. Use search_graph to discover them first.
Supported Cypher (openCypher read subset)
query_graph is a read-only openCypher subset:
Clauses:
MATCH,OPTIONAL MATCH, multipleMATCH,WHERE,WITH(+WITH … WHERE),RETURN,ORDER BY,SKIP,LIMIT,DISTINCT,UNWIND,UNION/UNION ALL,CASE.Patterns: labelled nodes, label alternation
(n:A|B), relationship types/direction, variable-length paths[*1..3], inline property maps.WHERE:
= <> < <= > >=,AND/OR/XOR/NOT,IN,CONTAINS,STARTS WITH,ENDS WITH,IS [NOT] NULL, regex=~, label testn:Label, andEXISTS { (n)-[:TYPE]->() }(single-hop existence — great for dead-code, e.g.WHERE NOT EXISTS { (f)<-[:CALLS]-() }).Aggregates:
count(+DISTINCT),sum,avg,min,max,collect.Functions:
labels,type,id,keys,properties;toLower/toUpper/toString/toInteger/toFloat/toBoolean;size,length,trim/ltrim/rtrim,reverse;coalesce,substring,replace,left,right.
Anything outside this subset (write/MERGE/CALL clauses, unsupported functions, list/map literals, comprehensions, path functions, parameters) fails with a clear unsupported … error rather than returning empty results.
Ignoring Files
Layered: hardcoded patterns (.git, node_modules, etc.) → .gitignore hierarchy → .cbmignore (project-specific, gitignore syntax). Symlinks are always skipped.
See docs/cbmignore.md for the full .cbmignore how-to: syntax, precedence across the ignore layers, and negation semantics.
Configuration
codebase-memory-mcp config list # show all settings
codebase-memory-mcp config set auto_index true # auto-index on session start
codebase-memory-mcp config set auto_index_limit 50000 # max files for auto-index
codebase-memory-mcp config set auto_watch false # don't register background git watcher (default: true)
codebase-memory-mcp config set watcher_enabled false # stop the watcher thread entirely (default: true)
codebase-memory-mcp config set index_max_files 250000 # optional per-index source-file limit
codebase-memory-mcp config set index_max_source_mb 16384 # optional per-index source-size limit
codebase-memory-mcp config reset auto_index # reset to defaultThe two index_max_* settings default to off. Exceeding one fails the complete
index attempt rather than publishing a partial graph; an existing serving index
is preserved. See Index resource limits.
Environment Variables
Variable | Default | Description |
| (unset) | Confine |
|
| Override the database storage directory. All project indexes and config are stored here. One account can use only one canonical cache root at a time; close active CBM sessions/commands before switching it. |
|
| Set to |
| (GitHub releases) | Override the download URL for updates. Used for testing or self-hosted deployments. |
| role-aware | Set the minimum log level. Thin MCP/CLI/hook frontends default to |
| (detected) | Override the parallel-indexing worker count returned by |
| (detected) | Override the in-memory graph budget with an explicit cap in MiB, taking precedence over the |
|
| After indexing, compare persisted SQLite node count to the in-memory dump count. When persisted nodes fall below this fraction of committed nodes (and committed > 50), |
Environment used by daemon-owned components—such as diagnostics, daemon logging, and process-wide indexing resource limits—is captured from the first daemon-backed session that starts the daemon. Later sessions join that process and cannot replace those values. To change them, close all daemon-backed sessions, update the relevant agent configurations consistently, and restart a session. CBM_ALLOWED_ROOT remains session-specific, a conflicting CBM_CACHE_DIR is rejected, and one-shot CLI commands read their own environment without starting the daemon.
# Store indexes in a custom directory
export CBM_CACHE_DIR=~/my-projects/cbm-dataCustom File Extensions
The JSON config files support a single key, extra_extensions, which maps additional file extensions to supported languages. Useful for framework-specific extensions like .blade.php (Laravel) or .mjs (ES modules). (For other tunables, see Environment Variables and the config subcommand above.)
Need the full config-file reference? See docs/CONFIGURATION.md.
Per-project (in your repo root):
// .codebase-memory.json
{"extra_extensions": {".blade.php": "php", ".mjs": "javascript"}}Global (applies to all projects):
// ~/.config/codebase-memory-mcp/config.json (or $XDG_CONFIG_HOME/...)
{"extra_extensions": {".twig": "html", ".phtml": "php"}}Each entry maps an extension (which must start with .) to a language name. Language names are matched case-insensitively. Accepted values (aliases in parentheses) are:
bash (sh), c, c++ (cpp), c# (csharp), clojure, cmake, cobol, common lisp (commonlisp, lisp), css, cuda, dart, dockerfile, elixir, elm, emacs lisp (emacslisp), erlang, f# (fsharp), form, fortran, glsl, go, graphql, groovy, haskell, hcl (terraform), html, ini, java, javascript, json, julia, kotlin, lean, lua, magma, makefile, markdown, matlab, meson, nix, objective-c (objc), ocaml, perl, php, protobuf, python, r, ruby, rust, scala, scss, sql, svelte, swift, toml, tsx, typescript, verilog, vimscript, vue, wolfram, xml, yaml, zig.
Project config overrides global for conflicting extensions. An entry whose language name is unknown, or whose extension does not start with ., is skipped and a warning is logged to stderr (shown at the default info log level). Missing config files are ignored.
Persistence
SQLite databases stored at ~/.cache/codebase-memory-mcp/. Persists across restarts (WAL mode, ACID-safe). To reset: rm -rf ~/.cache/codebase-memory-mcp/.
Troubleshooting
Problem | Fix |
| Check |
| Pass absolute path: |
| Use |
Queries return wrong project results | Add |
Binary not found after install | Add to PATH: |
UI not loading | Ensure you ran |
Hybrid LSP
Semantic type resolution beyond tree-sitter.
Tree-sitter alone gives a syntactic AST. That handles naming, structure, and call sites well, but it can't tell you that user.profile.display_name() resolves to Profile.display_name declared three modules away — tree-sitter doesn't track imports, generics, inheritance, or stdlib types.
codebase-memory-mcp ships a lightweight C implementation of language type-resolution algorithms, structurally inspired by and compatible with major language servers (tsserver / typescript-go, pyright, gopls, Roslyn, Eclipse JDT, rust-analyzer), embedded directly into the native executable. No language server process, no per-project setup, no API key. We call this layer Hybrid LSP: it runs alongside tree-sitter on every parse and refines invocation resolution (CALLS / RESOLVED_CALLS) and callable-value resolution (CALL_REFERENCE, with ambiguous values retained as USAGE) using type information, so the resulting graph mirrors what an IDE "Go to Definition" would resolve.
Languages with full Hybrid LSP:
Language | What it handles |
Python (new in v0.7.0) | imports + dotted submodule walks, dataclasses, |
TypeScript / JavaScript / JSX / TSX | generics, JSX component dispatch, JSDoc inference for plain JS, |
PHP (new in v0.7.0) | namespaces, traits, late-static-binding, PHPDoc inference, parameter binding, return-type inference |
C# (new in v0.7.0) | global usings, file-scoped namespaces, records (incl. C# 12 primary constructors), LINQ method syntax, |
Go (sharpened in v0.7.0) | pre-built per-package cross-file registry, generics, embedded structs, interface satisfaction, package-aware import resolution |
C / C++ (sharpened in v0.7.0) | pre-built per-language cross-file registry shared across C and C++; C side handles macros + |
Java (new in v0.8.0) | imports (single-type, on-demand, static), class hierarchies with |
Kotlin (new in v0.8.0) | imports + same-package resolution, classes / objects / companion objects, extension functions, data classes, nullable-type unwrapping, scope functions ( |
Rust (new in v0.8.0) |
|
Perl | packages + |
Two-layer architecture:
Tree-sitter pass — fast, syntactic, runs for every one of the 162 languages. Extracts definitions, calls, imports.
Hybrid LSP pass — type-aware, runs above the tree-sitter pass per-language. Refines call edges using the import graph plus a per-file or pre-built cross-file definition registry. Languages without a Hybrid LSP pass yet fall back to textual resolution, so you always get some answer.
The result is a knowledge graph accurate enough to drive trace_path across packages, inheritance hierarchies, and stdlib calls — without paying for a language server process per project.
Language Support
162 languages, all parsed via vendored tree-sitter grammars compiled into the binary. Benchmarked against 64 real open-source repositories (78 to 49K nodes):
Tier | Score | Languages |
Excellent (>= 90%) | Lua, Kotlin, C++, Perl, Objective-C, Groovy, C, Bash, Zig, Swift, CSS, YAML, TOML, HTML, SCSS, HCL, Dockerfile | |
Good (75-89%) | Python, TypeScript, TSX, Go, Rust, Java, R, Dart, JavaScript, Erlang, Elixir, Scala, Ruby, PHP, C#, SQL | |
Functional (< 75%) | OCaml, Haskell |
Also supported (not yet benchmarked): Ada, Agda, Apex, Assembly (NASM), Astro, AWK, Beancount, BibTeX, Bicep, Bitbake, Blade, Cairo, Cap'n Proto, Clojure, CMake, COBOL, Common Lisp, Crystal, CSV, CUDA, D, Devicetree, Diff, .env, Elm, Emacs Lisp, F#, Fennel, Fish, FORM, Fortran, FunC, GDScript, .gitattributes, .gitignore, Gleam, GLSL, GN, Go module, Go template, GraphQL, Hare, HLSL, Hyprlang, INI, ISPC, Janet, Jinja2, JSDoc, JSON, JSON5, Jsonnet, Julia, Just, Kconfig, KDL, Lean 4, Linker Script, Liquid, LLVM IR, Luau, Magma, Makefile, Markdown, MATLAB, Mermaid, Meson, Move, Nickel, Nim, Nix, Odin, Pascal, Pkl, PO (gettext), Pony, PowerShell, Prisma, .properties, Protobuf, Puppet, PureScript, Racket, Regex, requirements.txt, ReScript, RON, reStructuredText, Scheme, Slang, Smali, Smithy, Solidity, SOQL, SOSL, Squirrel, SSH config, Starlark, Svelte, Sway, SystemVerilog, TableGen, Tcl, Teal, Templ, Thrift, TLA+, Typst, Verilog, VHDL, Vim script, Vue, WGSL, WIT, Wolfram, XML, Zsh.
Architecture
src/
main.c Entry point (MCP stdio server + CLI + install/update/config)
daemon/ Per-account session coordination, IPC, lifecycle, shared jobs/watchers
mcp/ MCP server (17 tools, JSON-RPC 2.0, session detection, auto-index)
cli/ Install/uninstall/update/config (45 client surfaces, hooks, instructions)
store/ SQLite graph storage (nodes, edges, traversal, search, Louvain)
pipeline/ Multi-pass indexing (structure → definitions → calls → HTTP links → config → tests)
cypher/ Cypher query lexer, parser, planner, executor
discover/ File discovery (.gitignore, .cbmignore, symlink handling)
watcher/ Background auto-sync (git polling, adaptive intervals)
traces/ Runtime trace ingestion
ui/ Local HTTP server + verified external 3D-UI asset pack
foundation/ Platform abstractions (threads, filesystem, logging, memory)
internal/cbm/ Vendored tree-sitter grammars (162 languages) + AST extraction engineSecurity
Every release is verified through a multi-layer pipeline before publication:
VirusTotal — all 24 executable candidates (unstripped, debug-stripped and stripped) across the eight release products are scanned before smoke/soak (clean is preferred and only the single-Microsoft
!mltolerance documented in SECURITY.md may pass; the number of engines that returned a decisive result is recorded as evidence but is VirusTotal fleet availability, not a pass condition). The selected executable is packaged without changing its SHA-256, release notes link the verdict for the exact bytes shipped, and the full per-candidate evidence is published alongside the release as TSVs for anyone auditing the selection. Every distinct object extracted from the shipped containers —install.sh,install.ps1,LICENSE,THIRD_PARTY_NOTICES.md, the MCPBmanifest.jsonand the unpacked UI assets — is then scanned as well, so the full published surface is covered, not just the executables.SLSA Level 3 — cryptographic build provenance generated by the trusted GitHub Actions build workflow; verify with
gh attestation verify <file> --repo DeusData/codebase-memory-mcp --signer-workflow DeusData/codebase-memory-mcp/.github/workflows/_build.ymlSigstore cosign — keyless signatures on all artifacts; bundles included in every release
SHA-256 checksums —
checksums.txtpublished with every release; verified by both install scripts before extractionCodeQL SAST — blocks release pipeline if any open alerts remain
No language-runtime dependency chain — libraries are vendored at compile time; the small release-owned runtime assets are checksum-verified and content-addressed
v0.7.0 VirusTotal scans
Binary | SHA-256 | VirusTotal |
|
| |
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| |
|
| |
|
| |
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Scan links for every release are also included in the GitHub Release notes automatically.
License
MIT
Available Tools
17 toolscheck_index_coverageARead-onlyIdempotent
Best-effort exact-path/scope coverage and freshness, paged separately. full diagnostics adds raw detail. Clean is not proof of completeness.
| Name | Required | Description | Default |
|---|---|---|---|
| paths | No | ||
| format | No | tree | |
| scopes | No | ||
| project | Yes | ||
| path_limit | No | ||
| diagnostics | No | none | |
| path_offset | No | ||
| scope_limit | No | ||
| scope_offset | No |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
The description adds meaningful behavioral context beyond the readOnly/idempotent annotations: 'Best-effort' signals potential incompleteness, 'paged separately' discloses pagination behavior, 'full diagnostics adds raw detail' explains an output mode, and 'Clean is not proof of completeness' is a crucial caveat for interpreting results. No contradiction with annotations.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is three short sentences with no filler. The main purpose is front-loaded, followed by a diagnostics tip and a critical caveat. Every sentence earns its place, and the density is appropriate for the tool's complexity.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
With no output schema and sparse parameter documentation, the description provides a useful high-level concept but leaves gaps: it does not explain what 'coverage' or 'freshness' outputs look like, how tree vs json differ, or how to interpret 'clean'. The caveat about completeness is helpful but does not fully compensate for missing return-value semantics.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 0%, so the description must compensate. It does add meaning for paths/scopes ('exact-path/scope'), pagination ('paged separately'), and diagnostics ('full diagnostics'). However, it leaves several parameters (project, format, limits, offsets) semantically unexplained, though some are self-evident from their names and defaults.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description states a specific resource and scope: 'exact-path/scope coverage and freshness'. It clearly indicates a read-only check operation with pagination, going beyond a mere restatement of the tool name. It does not explicitly differentiate from siblings like index_status, but 'exact-path/scope' is distinctive enough.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
Usage context is implied: you would call this when you need granular coverage or freshness for specific paths/scopes. The phrase 'full diagnostics adds raw detail' hints at when to set diagnostics=full. However, no explicit when-not-to-use guidance or alternatives (e.g., index_status) are mentioned, leaving routing decisions to inference.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
compare_graphsARead-onlyIdempotent
Compare two indexed snapshots: deterministic target-only additions and base-only removals of stable node/edge identities; each set capped by limit and a 512 KiB budget with exact totals and truncation reasons.
| Name | Required | Description | Default |
|---|---|---|---|
| limit | No | ||
| scan_limit | No | ||
| base_project | Yes | ||
| target_project | Yes |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Beyond the read-only and idempotent annotations, the description discloses meaningful behavior: deterministic diffing, cap enforcement via limit and a 512 KiB budget, and exact totals with truncation reasons. This is especially valuable because there is no output schema to convey what the tool returns.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single dense sentence with no filler. It front-loads the core purpose and then packs in behavioral details about caps, totals, and truncation reasons without redundancy.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
The description covers the core behavior and output well, especially given no output schema. However, it leaves scan_limit unexplained and does not mention alternatives or prerequisites beyond 'indexed snapshots', so an agent may not fully understand all input semantics or when to prefer a sibling tool.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 0%, so the description must compensate, but it does not explain scan_limit at all and only implicitly covers limit. base_project and target_project are inferable from 'Compare two indexed snapshots', and limit's role is hinted by 'capped by limit', but the parameter semantics remain under-specified for an agent.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description names a specific operation ('Compare two indexed snapshots') and states what it returns: target-only additions and base-only removals of stable node/edge identities. This is clear and specific, though it does not explicitly distinguish the tool from sibling tools such as detect_changes.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides clear context on when to use the tool: comparing two indexed snapshots to identify deterministic additions and removals. It does not state exclusions or point to alternatives, but the usage context is clear enough to guide selection.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
delete_projectBDestructiveIdempotent
Delete a project from the index
| Name | Required | Description | Default |
|---|---|---|---|
| project | Yes |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare destructiveHint=true, idempotentHint=true, and readOnlyHint=false, covering the safety profile. The description adds the 'from the index' scoping, which clarifies that deletion is limited to the index rather than the underlying project, but it does not disclose side effects, reversibility, or permissions. Given that annotations carry the main behavioral burden, a 3 is appropriate.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The entire description is a single front-loaded sentence that directly states the action and object. No unnecessary words or redundant information; it is appropriately sized for a simple tool.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a destructive one-parameter tool, the description states the core operation but leaves out practical details such as the expected format of the project parameter and the exact consequences of deletion. However, the annotation set (destructive, idempotent) partially compensates, so the description is minimally adequate but not fully complete.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
With 0% schema description coverage, the description is the only source of parameter meaning, but it merely repeats the parameter name ('project') without explaining what value it should take (e.g., ID, name, path) or any constraints. This is tautological and provides no semantic value beyond the schema.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description uses a specific action verb 'Delete' and names the exact resource and scope ('a project from the index'), making the tool's function immediately clear. It is clearly distinct from sibling tools like list_projects, search_graph, or get_architecture.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description gives no guidance on when to use this tool versus alternatives, nor does it mention any prerequisites, exclusions, or side conditions. Usage is only implicitly derived from the purpose, but nothing tells an agent when deletion is appropriate or how it differs from other index management tools.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
detect_changesCRead-onlyIdempotent
Map a Git diff to files and impact. Page with snapshot cursors.
| Name | Required | Description | Default |
|---|---|---|---|
| depth | No | ||
| limit | No | ||
| scope | No | impact | |
| since | No | ||
| format | No | tree | |
| project | Yes | ||
| direction | No | inbound=callers; outbound=dependencies; both=union. | inbound |
| base_branch | No | main | |
| module_limit | No | ||
| changed_limit | No | ||
| impact_cursor | No | ||
| impact_offset | No | ||
| module_cursor | No | ||
| module_offset | No | ||
| changed_cursor | No | ||
| changed_offset | No | ||
| max_output_tokens | No | Sizing hint; hard ceiling is 4 UTF-8 bytes/token. |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already establish that the tool is read-only, idempotent, and non-destructive. The description adds the behavioral detail of pagination via 'snapshot cursors,' which is beyond the annotations. However, it does not explain what a snapshot cursor is, how pagination behaves, or any other operational traits like output size limits or error conditions.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is very short, with only two sentences, and the main purpose is front-loaded. Each sentence contributes information: the first states the primary purpose, the second notes pagination behavior. There is no redundancy or filler, though the brevity veers toward under-specification rather than tight, informative conciseness.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
This is a complex tool with 17 parameters, minimal schema descriptions, no output schema, and no usage guidance. The description does not explain how the Git diff is determined, what 'impact' means, what the output contains, or how the pagination cursor system works. An agent cannot reliably call this tool correctly based on the provided description alone.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
With schema description coverage at only 12% and 17 parameters, the description must compensate, but it only hints that cursor-related parameters support pagination via 'Page with snapshot cursors.' It does not explain key parameters like scope, direction, base_branch, since, limit, depth, or the various offsets and cursors. Most parameters remain semantically opaque, so the description adds minimal value beyond the schema.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description states a clear action and resource: 'Map a Git diff to files and impact.' This is specific enough to distinguish the tool from siblings like compare_graphs or trace_path, which do not focus on Git diffs. However, 'impact' is somewhat vague and not explained, so it falls short of a 5.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides no guidance on when to use this tool versus its siblings such as compare_graphs, trace_path, or get_architecture. There are no conditional use cases, exclusions, or alternative tool mentions. The only hint is the purpose, which implies usage but does not explicitly state it.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
get_architectureARead-onlyIdempotent
Compact counts, languages, packages, entry points. Request structure, dependencies, routes, hotspots, boundaries, layers, clusters, cycles, or file_tree; path scopes a directory.
| Name | Required | Description | Default |
|---|---|---|---|
| path | No | Directory prefix (for example apps/hoa). | |
| format | No | tree | |
| aspects | No | all=everything; overview=compact except file_tree; omitted=languages/packages/entry_points; cycles is opt-in. | |
| project | Yes |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already establish a read-only, idempotent, non-destructive profile, and the description adds useful behavior beyond that: output is compact by default, optional aspects can be requested, and path restricts scope. It does not describe output shape or edge cases, but the annotation coverage lowers the burden.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is two short, front-loaded sentences with no filler: default output, available aspects, and path scoping are all covered. Every clause earns its place and an agent can quickly parse the salient behavior.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Between the description and the input schema, an agent knows the required project, the path scoping behavior, the selectable aspects, and the tree/json format choice. There is no output schema, but the description does indicate what the default result contains; the main residual gap is the exact return shape for each requested aspect.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The description adds meaning for aspects by listing requestable options and for path by explaining that it scopes a directory. However, format and project receive no enrichment, and with only 50% schema description coverage those parameters remain under-explained in both schema and description.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly identifies the resource as a project/directory architecture and enumerates the default compact output (counts, languages, packages, entry points) plus requestable aspects. It is specific and informative, though it never states an explicit verb or directly distinguishes itself from siblings like query_graph or get_file_outline.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
It gives concrete usage context: the agent can request structure, dependencies, routes, hotspots, boundaries, layers, clusters, cycles, or file_tree, and path scopes the analysis to a directory. It does not explicitly name alternatives or say when not to use this tool, so it stops short of full routing guidance.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
get_code_snippetBRead-onlyIdempotent
Read a search_graph symbol. auto bounds source and outlines large containers; full restores up to 500 lines. Source/outline pages continue; coverage_note marks gaps.
| Name | Required | Description | Default |
|---|---|---|---|
| format | No | tree | |
| project | Yes | ||
| max_lines | No | ||
| start_line | No | ||
| source_mode | No | auto outlines 200+ line containers; full returns source; outline lists members. | auto |
| member_limit | No | ||
| member_offset | No | ||
| qualified_name | Yes | search_graph qn, or short name. | |
| include_neighbors | No | ||
| max_output_tokens | No | auto/outline sizing hint (default 2500), hard ceiling 4 UTF-8 bytes/token. Lines stay whole; explicit full is uncapped unless set. |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already establish read-only, idempotent, non-destructive behavior. The description adds useful behavioral detail: auto mode bounds source, full mode restores up to 500 lines, pagination continues across pages, and coverage_note marks gaps. This goes beyond the annotations, though 'full restores up to 500 lines' is slightly ambiguous given the uncapped note on max_output_tokens.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
Three short sentences with the core purpose front-loaded. The phrasing is terse, bordering on cryptic, but every clause carries relevant information and there is no filler.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given 10 parameters, only 30% schema coverage, and no output schema, the description is not complete enough for reliable tool invocation. It hints at paging and coverage notes but omits how to configure pagination, what output formats look like, and how optional features such as include_neighbors behave.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is only 30% across 10 parameters, so the description carries a heavy burden. It adds some meaning for source_mode and line limits, but it does not clarify qualified_name, project, format, start_line, member_offset, member_limit, include_neighbors, or max_output_tokens. This is not enough compensation for the large undocumented parameter set.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description uses a specific verb ('Read') and resource ('a search_graph symbol'), making the core purpose clear. It does not explicitly distinguish from siblings like get_file_outline or search_graph, so it falls just short of a 5.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description gives some usage context around source modes and pagination ('auto bounds source and outlines large containers; full restores up to 500 lines; Source/outline pages continue'). However, it never tells an agent when to prefer this tool over alternatives such as get_file_outline or search_code, nor states exclusions.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
get_file_outlineCDestructiveIdempotent
Declaration outline of one exact repository-relative file: optional exact label filter, source order, exact total/offset/limit paging; file/folder/container nodes excluded.
| Name | Required | Description | Default |
|---|---|---|---|
| limit | No | ||
| format | No | tree | |
| labels | No | Optional exact node-label filter | |
| offset | No | ||
| project | Yes | ||
| file_path | Yes | Exact repository-relative file path |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
The annotations include destructiveHint: true, which strongly implies the tool may have destructive or mutating behavior, but the description describes a read-only operation (getting an outline) and provides no mention of any side effects or destructive actions. This is a clear contradiction. The description also fails to disclose any behavioral traits beyond what the schema provides, and with annotations carrying a conflicting hint, transparency is severely lacking.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is a single sentence that packs significant detail without excessive verbosity. It front-loads the primary purpose ('Declaration outline of one exact repository-relative file') and then lists key features concisely. It is dense but not bloated, earning a high score for efficiency.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool has six parameters and no output schema, the description does not fully explain the return format or behavior. The contradiction with destructiveHint adds confusion, and the description omits any mention of error cases or prerequisites. The description covers basic functionality but is incomplete for an agent to use confidently, especially with the conflicting annotation.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The description adds meaning for some parameters: 'optional exact label filter' corresponds to the labels array, and 'exact total/offset/limit paging' explains limit and offset semantics. However, it does not explain the project parameter, the format enum, or the meaning of 'source order' in detail. With schema description coverage at only 33%, the description partially compensates but leaves gaps for half the parameters.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly identifies the operation as retrieving a declaration outline for a specific repository-relative file, and mentions key features like label filtering and paging. It distinguishes itself by scoping to a single file and explicitly excluding file/folder/container nodes, which differentiates it from broader tools like get_architecture or search_graph. However, it does not explicitly name sibling alternatives, so it is clear but not fully differentiated.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description implies usage when an agent needs a declaration outline of a specific file, and the phrase 'exact repository-relative file' sets context. It does not explicitly state when not to use it or name alternative tools, leaving some inference required. There is no mention of prerequisites or conditions for use, so guidance is adequate but not explicit.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
get_graph_schemaBRead-onlyIdempotent
Get node-label and edge-type counts. diagnostics=full also lists queryable properties.
| Name | Required | Description | Default |
|---|---|---|---|
| limit | No | ||
| format | No | tree | |
| offset | No | ||
| project | Yes | ||
| diagnostics | No | none |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations indicate read-only, idempotent, and non-destructive, so the description does not need to repeat safety traits. It adds the 'diagnostics=full' behavior for listing properties, which is beyond annotations. However, it doesn't detail output structure or limitations, but annotations cover a lot.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is concise (two sentences) and front-loads the primary purpose. It mentions the diagnostics special case without excess detail, though it could be slightly more structured.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool's moderate complexity (5 params, enums) and lack of output schema, the description provides minimal but sufficient context for basic usage. It does not explain parameter interplay or output format, but annotations cover safety. Overall adequate but with gaps.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 0% and the description mentions only the diagnostics parameter's effect, not explaining others like limit, format, offset, or project. With 5 parameters and no schema descriptions, the description fails to compensate, leaving agents to guess parameter purposes.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool retrieves node-label and edge-type counts, which is a specific resource and data type. It does not explicitly differentiate from siblings like query_graph or get_architecture, but the focus on schema/counts is distinctive.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description implies usage for schema inspection but does not provide explicit guidance on when to use this over alternatives like query_graph or compare_graphs. It lacks context on typical use cases or exclusions.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
index_repositoryAIdempotent
Index a repository. full/moderate add semantics; fast omits them; cross-repo-intelligence links services. Reports coverage gaps.
| Name | Required | Description | Default |
|---|---|---|---|
| mode | No | full: all+semantic; moderate: filtered+semantic; fast: filtered only; cross-repo-intelligence: link services. | full |
| name | No | Name override; Non-ASCII bytes are encoded; unsafe characters normalized. | |
| repo_path | Yes | Repository path | |
| persistence | No | Write .codebase-memory/graph.db.zst. | |
| target_projects | No | Cross-repo targets; ["*"] means all. |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already mark the tool as not read-only, idempotent, and not destructive; the description adds behavioral detail beyond those flags by explaining what each mode does and noting that the tool 'Reports coverage gaps.' It does not discuss cost, permissions, or persistence side effects, but it supplements the annotation profile meaningfully.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is three short sentences with no filler, front-loads the core action, and compresses the mode distinctions into a compact contrast. Every clause earns its place.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
With no output schema, the description at least signals what the caller will learn ('Reports coverage gaps') and the mode semantics are covered. It does not describe the return shape or when to prefer sibling coverage tools, but given the 100% parameter schema and annotations, the main operational context is present.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so the schema already documents every parameter. The description's mode language largely restates the schema's enum descriptions rather than adding new parameter-level meaning, and it adds no detail about name, persistence, or target_projects.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description opens with 'Index a repository,' a specific verb and resource, and clarifies mode differences. It does not explicitly contrast itself with sibling tools like check_index_coverage or index_status, so it stops short of full sibling differentiation.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The mode summary ('full/moderate add semantics; fast omits them; cross-repo-intelligence links services') gives implied guidance for choosing a mode, but the description never states when to use index_repository instead of related tools such as check_index_coverage or detect_changes. Usage context is present but not explicit.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
index_statusARead-onlyIdempotent
Project readiness, counts, root, and coverage gaps. diagnostics adds coverage rows; verbose adds Git paths. Best-effort only; verify cited paths with check_index_coverage.
| Name | Required | Description | Default |
|---|---|---|---|
| format | No | tree | |
| project | Yes | ||
| verbose | No | Add worktree/shadow Git paths for index-location debugging. | |
| diagnostics | No | Coverage rows: counts, five samples, or up to 500. | none |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already cover the safety profile (readOnlyHint, idempotentHint, destructiveHint), and the description adds non-annotated behavioral context: 'Best-effort only' warns results may be incomplete or stale, and 'verify cited paths with check_index_coverage' sets a verification expectation. The parameter-effect notes ('diagnostics adds coverage rows; verbose adds Git paths') further describe behavior without contradicting the annotations.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
Three short sentences in roughly 31 words, front-loaded with the key output fields, then flag effects, then the caveat and sibling pointer. No sentence is wasted; each earns its place. The telegraphic style slightly hurts clarity elsewhere, but for size and structure this is exemplary.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a moderate 4-param report tool with full annotation coverage, the description covers the return-value terrain (readiness, counts, root, coverage gaps), the toggle behaviors, and the reliability caveat even with no output schema. Minor gaps remain — e.g., what 'root' means or how tree/json formats differ — but the schema's enums, defaults, and tool name make these semi-self-evident. Complete enough to call correctly.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 50% — verbose and diagnostics have descriptions, but project and format do not. The description's mentions of diagnostics and verbose largely restate the schema ('coverage rows', 'Git paths') rather than adding new meaning, and it does nothing for the undocumented project and format parameters. Adequate but no enrichment beyond the structured fields.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description enumerates concrete outputs ('Project readiness, counts, root, and coverage gaps') and points to the sibling check_index_coverage, so an agent can roughly infer this is an index-status report. However, it is a noun-phrase fragment with no verb ('reports', 'returns', 'gets'), leaving the tool's action implicit. It distinguishes from check_index_coverage but does not meet the 'specific verb+resource' bar.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description gives an explicit alternative directive — 'verify cited paths with check_index_coverage' — telling the agent when to hand off verification to a sibling, plus the 'Best-effort only' caveat that sets expectations for trusting results. It does not explicitly state when to use this tool versus other siblings (e.g., index_repository), but the context is clear enough. Falls just short of a full when/when-not framing.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
ingest_tracesC
Validate and count traces; graph edge creation is not implemented
| Name | Required | Description | Default |
|---|---|---|---|
| traces | Yes | ||
| project | Yes |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already show this is non-read-only, non-idempotent, and non-destructive, so the bar is lower. The description adds one useful behavioral fact: graph edge creation is not implemented. However, it does not disclose whether data is persisted, whether existing traces are replaced, or what the return value is.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
Two short sentences with the primary action front-loaded and a key limitation stated directly. It is efficient and every sentence earns its place, though the brevity sacrifices substantive detail.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a mutating ingestion tool with no output schema and sparse annotations, this is incomplete. It lacks return-value semantics, side-effect disclosure, prerequisites, and parameter meaning, leaving the agent with too much to infer before calling it safely.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 0%, and the description names no parameters or fields. The agent must infer the meaning of 'count', 'callee', 'caller', and 'project' from parameter names alone, with no clarification of what 'count' represents in the trace objects.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description states a concrete action, 'validate and count traces', on a specific resource and explicitly notes that graph edge creation is not implemented, which helps distinguish it from graph-building siblings. It is not a 5 because 'count traces' is slightly ambiguous: it could mean returning a count, storing a count, or computing counts for validation.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
There is no explicit when-to-use guidance and no named alternative tool among the graph/index siblings. The note about graph edge creation not being implemented implies this is not the graph-write path, but the description never says when to call this instead of index_repository or query_graph.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
list_projectsARead-onlyIdempotent
List projects with stable paging. Identity is lean; stats adds graph sizes.
| Name | Required | Description | Default |
|---|---|---|---|
| limit | No | ||
| detail | No | stats adds node/edge/database-size counts. | identity |
| format | No | tree | |
| offset | No | ||
| metadata_only | No | Compatibility: omit counts, size, and branch. | |
| include_details | No | Alias for detail=stats: include branch, node/edge counts and database size. Slower. |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare the operation read-only and idempotent. The description adds meaningful behavioral context by highlighting 'stable paging' and explaining that identity mode is lean while stats mode adds graph sizes, which goes beyond the structured annotations.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
Two short sentences deliver the core purpose, a key behavioral guarantee, and the main detail-mode tradeoff with no wasted words. The content is front-loaded and easy to scan.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a tool with six parameters and no output schema, the description is brief but somewhat incomplete. It covers purpose and a few parameter semantics, but it does not explain response shape, how paging behaves beyond 'stable', or the format/metadata_only compatibility options. It is adequate but leaves meaningful gaps.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is only 50%, so the description must compensate for undocumented parameters. It adds value by clarifying that the detail parameter controls whether graph sizes are included. However, it says nothing about limit, offset, format, metadata_only, or include_details beyond what the schema already provides, leaving several parameters unexplained.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the action and resource: 'List projects'. The mention of 'stable paging' and the detail-mode distinction adds useful specificity. It does not explicitly differentiate from sibling tools, but the purpose is unambiguous.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description implies when to use the tool by saying it lists projects with stable paging, and it gives some guidance on choosing between identity and stats detail. However, it does not explicitly state when to prefer this tool over alternatives or provide exclusions, leaving usage context mostly implicit.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
manage_adrBDestructive
Outline an ADR by default; get reads it; update replaces it
| Name | Required | Description | Default |
|---|---|---|---|
| mode | No | outline pages headings; get reads; update replaces the whole document; set_sections rewrites only the named sections and leaves every other byte untouched (an identical repeated write is byte-identical, so retrying is safe); sections is legacy. | outline |
| format | No | tree | |
| content | No | Whole document for update | |
| project | Yes | ||
| section_limit | No | ||
| section_offset | No | ||
| section_updates | No | set_sections: section name -> new body. Any heading name works; names match exactly, including case. |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
The description explicitly states that 'update replaces it', aligning with the destructiveHint annotation and adding specificity. It also notes 'get reads it', which is read-only. This adds behavioral context beyond the annotations, though it does not cover set_sections behavior.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is extremely concise with two short sentences, front-loading the default behavior. No redundant words, but it sacrifices completeness for brevity.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a tool with 7 parameters, a mode enum, and no output schema, the description is too minimal. It fails to mention the set_sections mode, section pagination parameters, or format options, leaving important aspects unexplained.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The description does not elaborate on any parameters beyond what the schema already provides. With schema coverage at 43%, the description should compensate for undocumented parameters like format, section_limit, and section_offset, but it does not.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description states a specific verb+resource ('Outline an ADR') and contrasts it with 'get reads' and 'update replaces', clarifying it manages ADRs. It distinguishes from sibling tools by focusing on ADRs, but omits the set_sections mode, which is a significant feature.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
No guidance is given on when to use this tool versus alternatives. The description does not mention sibling tools, exclusions, or specific conditions for using different modes, leaving the agent to infer usage from the tool name and schema.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
query_graphARead-onlyIdempotent
Read-only Cypher for multi-hop, aggregation, complexity, or cross-service analysis. Default: 200 visible rows with exact/lower-bound totals and truncation; continue safely with next_cursor. graph=missed is a file tree of flagged coverage gaps; absence is not proof of completeness. Use get_graph_schema(diagnostics=full) for properties.
| Name | Required | Description | Default |
|---|---|---|---|
| graph | No | code graph (default) or missed coverage-gap file tree. | code |
| query | Yes | Cypher query | |
| cursor | No | Snapshot continuation; keep query/project/graph. Format, budget, and max_rows may change. | |
| format | No | tree may use local @N+suffix prefix refs; json uses direct strings. | tree |
| offset | No | Live compatibility paging; cannot be combined with cursor. | |
| project | Yes | ||
| max_rows | No | Visible rows (default 200; max 99998); 0 uses the legacy maximum. Evaluation is unchanged. | |
| max_output_tokens | No | Sizing hint; hard ceiling is 4 UTF-8 bytes/token. Rows stay whole. |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotation Contradiction: openWorldHint=false indicates closed-world results, but the description says 'absence is not proof of completeness' for graph=missed, which is an open-world caveat. While pagination, truncation, and cursor behavior are disclosed, the contradiction with the annotation makes the behavioral guidance unreliable.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is dense but efficient: it front-loads purpose, then covers pagination behavior, graph=missed semantics, and the get_graph_schema alternative. Every sentence earns its place with no filler.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For an 8-parameter tool with no output schema, the description covers the most important non-obvious behaviors: pagination, truncation, graph modes, and property lookup. It is nearly complete, but the open-world annotation contradiction prevents it from being fully trustworthy.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is high (88%), so the baseline is 3, but the description adds valuable semantics: default 200 visible rows, truncation and lower-bound totals, safe cursor continuation, and the graph=missed coverage-gap caveat. These details meaningfully supplement the schema descriptions.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly defines the tool as read-only Cypher for multi-hop, aggregation, complexity, or cross-service analysis, which is specific and informative. It also differentiates from get_graph_schema by directing property-related needs there.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description states when to use the tool (complex, multi-hop, aggregation, cross-service analysis) and explicitly points to get_graph_schema(diagnostics=full) for properties. It does not explicitly contrast with search_graph or other siblings, leaving room for stronger exclusions.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
search_codeCRead-onlyIdempotent
Graph-ranked text search: compact symbols, full bounded source, or file paths.
| Name | Required | Description | Default |
|---|---|---|---|
| mode | No | compact | |
| debug | No | Add scope_ms/scan_ms/enrich_ms phase timings. | |
| limit | No | ||
| regex | No | ||
| format | No | tree | |
| context | No | ||
| pattern | Yes | ||
| project | Yes | ||
| raw_limit | No | ||
| raw_offset | No | ||
| match_limit | No | ||
| path_filter | No | ||
| file_pattern | No | ||
| result_limit | No | ||
| result_offset | No | ||
| directory_limit | No | ||
| directory_offset | No | ||
| source_max_lines | No | ||
| max_output_tokens | No | ||
| raw_content_offset | No | Raw-line byte offset; omit for match-centered preview. |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already establish readOnlyHint, idempotentHint, and destructiveHint=false, so the safety profile is covered. The description adds the useful behavioral detail that results are graph-ranked and that modes vary between symbols, full source, and file paths. It does not disclose output shape, pagination behavior, or mode-specific limits, but the annotation coverage lowers the bar.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is very short and free of fluff, which is positive, but it is closer to a tagline than a structured explanation. For a tool with 20 parameters and no output schema, the brevity borders on under-specification rather than efficient completeness.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the high complexity (20 parameters, 10% schema coverage, no output schema), the description is far from complete. It does not explain result formats, how graph ranking affects results, the meaning of raw offsets, or the tradeoffs between modes. An agent would likely need to probe the tool or inspect sibling definitions to use it confidently.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is only 10%, so the description must compensate for the 20 parameters. It partially does by explaining the mode enum values ('compact symbols, full bounded source, or file paths'), but pattern, project, limit, regex, format, context, filters, offsets, and output token limits are left unexplained. This is insufficient for such a parameter-heavy tool.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description states a specific action ('search') on a clear resource ('code') and names three distinct output modes: compact symbols, full bounded source, or file paths. It is reasonably clear but does not explicitly differentiate itself from likely siblings such as search_graph or get_code_snippet.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description gives no guidance on when to use this tool versus alternatives. It does not mention search_graph for graph-oriented queries, get_code_snippet for retrieving a known snippet, or any exclusions. Usage context must be inferred from the name and the phrase 'graph-ranked text search.'
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
search_graphBRead-onlyIdempotent
Find symbols via BM25 query, regex name/qn filters, or semantic_query. Rows keep qn/file/lines and in/out over CALLS/USAGE/CALL_REFERENCE/INHERITS/IMPLEMENTS.
| Name | Required | Description | Default |
|---|---|---|---|
| label | No | ||
| limit | No | ||
| query | No | ||
| detail | No | default | |
| fields | No | ||
| format | No | tree | |
| offset | No | ||
| project | Yes | ||
| max_degree | No | ||
| min_degree | No | ||
| qn_pattern | No | ||
| file_pattern | No | ||
| name_pattern | No | ||
| relationship | No | ||
| semantic_limit | No | ||
| semantic_query | No | Not with query. | |
| semantic_offset | No | ||
| include_connected | No | ||
| max_output_tokens | No | ||
| exclude_entry_points | No |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already establish read-only/idempotent/non-destructive behavior. The description adds useful context about result rows and relationship edge kinds, but it does not disclose behavioral details such as how filters combine, how degree limits affect traversal, or what output formats contain. With annotations covering safety, this is adequate but not rich.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
Two compact sentences with no filler; the main verb and resource appear immediately. The jargon density is high, but every clause adds information, making it appropriately sized for a first-level description.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a 20-parameter search tool with no output schema, this description is too thin. It gives the result row shape but not enough guidance on filter semantics, output formatting, pagination, or the meaning of many parameters, leaving the agent to infer critical calling details.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is only 5% across 20 parameters, so the description must compensate. It explains the core query modes and regex filters, but leaves most parameters—detail, fields, format, offset, degree bounds, include_connected, exclude_entry_points—unexplained. This is a significant gap.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly identifies a symbol search tool with specific query modes (BM25, regex filters, semantic_query) and describes what rows contain. It does not explicitly distinguish this from siblings like search_code or query_graph, so it loses the top score.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description implies usage for symbol lookup across relationship types, but never states when to prefer this tool over search_code or query_graph, or when not to use it. There is no explicit alternative routing or exclusion guidance.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
trace_pathARead-onlyIdempotent
Trace callers/callees, data flow, or cross-service paths. Defaults exclude tests and resolver evidence. Rows keep qn/hop with explicit totals, relations, and continuations.
| Name | Required | Description | Default |
|---|---|---|---|
| mode | No | calls, argument-aware data_flow, or service edges. | calls |
| depth | No | ||
| limit | No | Rows/page; gte flags the 5000-node engine ceiling. | |
| cursor | No | Pass next/next_cursor with traversal args unchanged; budget may increase. | |
| format | No | tree chooses smaller complete direct/grouped output; json uses stable grouped tables. | tree |
| project | Yes | ||
| direction | No | both | |
| edge_types | No | ||
| risk_labels | No | Add hop-risk labels. | |
| function_name | Yes | ||
| include_tests | No | ||
| parameter_name | No | data_flow parameter filter. | |
| include_evidence | No | Add resolver class and confidence. | |
| max_output_tokens | No | Sizing hint; hard ceiling is 4 UTF-8 bytes/token. Evidence/args yield before nearest graph rows. |
TDQS
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint, idempotentHint, and destructiveHint=false. The description adds useful behavioral details: default exclusions of tests and resolver evidence, and the fact that rows preserve qn/hop with explicit totals, relations, and continuations. No contradiction with annotations.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
Two compact sentences with the core purpose front-loaded. Every phrase adds information, and there is no filler or repetition of schema details.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a tool with 14 parameters and no output schema, the description is relatively sparse. It covers basic behavior and output row shape, but leaves mode-specific behavior, direction/edge_types semantics, and pagination details largely to the schema. Adequate but with clear gaps.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is only 57%, so the description should compensate. It does add implicit meaning around include_tests and include_evidence by mentioning defaults, but it does not explain direction, edge_types, depth, or cursor behavior beyond what the schema already provides.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description opens with the specific verb 'Trace' and names the resource types: callers/callees, data flow, and cross-service paths. It clearly distinguishes what the tool operates on, though it does not explicitly contrast it with sibling graph/query tools.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
There is no guidance on when to use trace_path versus search_graph, query_graph, or get_architecture. The description only states default exclusions (tests, resolver evidence) and row content, leaving the selection decision to the agent.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Tool Schema Changelog
Recent tool additions, removals, and schema changes observed during successful MCP inspections.
15 tool updates
v0.11.0- Changed
check_index_coverage7 fields changed- added
Input schema / properties / diagnosticsAdded value: +{ + "default": "none", + "enum": [ + "none", + "full" + ], + "type": "string" +} - added
Input schema / properties / formatAdded value: +{ + "default": "tree", + "enum": [ + "tree", + "json" + ], + "type": "string" +} - added
Input schema / properties / path_limitAdded value: +{ + "default": 20, + "maximum": 128, + "minimum": 1, + "type": "integer" +} - added
Input schema / properties / path_offsetAdded value: +{ + "default": 0, + "minimum": 0, + "type": "integer" +} - removed
Input schema / properties / paths / descriptionRemoved value: -"Repository-relative files to check exactly. Required if 'scopes' is omitted." - changed
Input schema / properties / scope_limit / defaultPrevious value: -200New value: +20 - removed
Input schema / properties / scopes / descriptionRemoved value: -"Repository-relative path prefixes; use . for the project root. Required if 'paths' is omitted."
- Added
compare_graphs - Changed
detect_changes15 fields changed- added
Input schema / properties / changed_cursorAdded value: +{ + "type": "string" +} - added
Input schema / properties / changed_limitAdded value: +{ + "default": 20, + "maximum": 5000, + "minimum": 0, + "type": "integer" +} - added
Input schema / properties / changed_offsetAdded value: +{ + "default": 0, + "minimum": 0, + "type": "integer" +} - removed
Input schema / properties / depth / descriptionRemoved value: -"Max traversal hops from the changed symbols." - changed
Input schema / properties / direction / descriptionPrevious value: -"inbound (default) = the blast radius: transitive CALLERS of the changed symbols. outbound = what the changed code depends on. both = union."New value: +"inbound=callers; outbound=dependencies; both=union." - added
Input schema / properties / impact_cursorAdded value: +{ + "type": "string" +} - added
Input schema / properties / impact_offsetAdded value: +{ + "default": 0, + "minimum": 0, + "type": "integer" +} - removed
Input schema / properties / limit / descriptionRemoved value: -"Per-symbol impacted rows shown (nearest hops first). impacted_total is always exact and the impacted_modules rollup always complete regardless." - added
Input schema / properties / max_output_tokensAdded value: +{ + "default": 3200, + "description": "Sizing hint; hard ceiling is 4 UTF-8 bytes/token.", + "maximum": 1000000, + "minimum": 128, + "type": "integer" +} - added
Input schema / properties / module_cursorAdded value: +{ + "type": "string" +} - added
Input schema / properties / module_limitAdded value: +{ + "default": 20, + "maximum": 256, + "minimum": 0, + "type": "integer" +} - added
Input schema / properties / module_offsetAdded value: +{ + "default": 0, + "minimum": 0, + "type": "integer" +} - added
Input schema / properties / scope / defaultAdded value: +"impact" - removed
Input schema / properties / scope / descriptionRemoved value: -"files: changed files only (no traversal). impact (default): files + the transitive impact set." - removed
Input schema / properties / since / descriptionRemoved value: -"Git ref or tag to compare from (e.g. HEAD~5, v0.5.0). Diffs <ref>...HEAD."
- Changed
get_architecture3 fields changed- changed
Input schema / properties / aspects / descriptionPrevious value: -"Aspects to include. 'all' = everything; 'overview' = compact summary (all except file_tree); omit = all. 'cycles' is opt-in ONLY (never via all/overview): it scans the whole call graph for circular CALLS dependencies (SCCs of size > 1)."New value: +"all=everything; overview=compact except file_tree; omitted=languages/packages/entry_points; cycles is opt-in." - added
Input schema / properties / formatAdded value: +{ + "default": "tree", + "enum": [ + "tree", + "json" + ], + "type": "string" +} - changed
Input schema / properties / path / descriptionPrevious value: -"Optional directory prefix to scope architecture (e.g. apps/hoa)"New value: +"Directory prefix (for example apps/hoa)."
- Changed
get_code_snippet8 fields changed- added
Input schema / properties / formatAdded value: +{ + "default": "tree", + "enum": [ + "tree", + "json" + ], + "type": "string" +} - added
Input schema / properties / max_linesAdded value: +{ + "maximum": 500, + "minimum": 1, + "type": "integer" +} - added
Input schema / properties / max_output_tokensAdded value: +{ + "description": "auto/outline sizing hint (default 2500), hard ceiling 4 UTF-8 bytes/token. Lines stay whole; explicit full is uncapped unless set.", + "maximum": 1000000, + "minimum": 128, + "type": "integer" +} - added
Input schema / properties / member_limitAdded value: +{ + "default": 50, + "maximum": 500, + "minimum": 1, + "type": "integer" +} - added
Input schema / properties / member_offsetAdded value: +{ + "default": 0, + "minimum": 0, + "type": "integer" +} - changed
Input schema / properties / qualified_name / descriptionPrevious value: -"Full qualified_name from search_graph, or short function name"New value: +"search_graph qn, or short name." - added
Input schema / properties / source_modeAdded value: +{ + "default": "auto", + "description": "auto outlines 200+ line containers; full returns source; outline lists members.", + "enum": [ + "auto", + "full", + "outline" + ], + "type": "string" +} - added
Input schema / properties / start_lineAdded value: +{ + "minimum": 1, + "type": "integer" +}
- Added
get_file_outline - Changed
get_graph_schema4 fields changed- added
Input schema / properties / diagnosticsAdded value: +{ + "default": "none", + "enum": [ + "none", + "full" + ], + "type": "string" +} - added
Input schema / properties / formatAdded value: +{ + "default": "tree", + "enum": [ + "tree", + "json" + ], + "type": "string" +} - added
Input schema / properties / limitAdded value: +{ + "default": 50, + "maximum": 500, + "minimum": 1, + "type": "integer" +} - added
Input schema / properties / offsetAdded value: +{ + "default": 0, + "minimum": 0, + "type": "integer" +}
- Changed
index_repository5 fields changed- changed
Input schema / properties / mode / descriptionPrevious value: -"All modes run type-aware LSP call/usage resolution (per-file + cross-file). full: all files + similarity/semantic edges. moderate: filtered files + similarity/semantic. fast: filtered files, no similarity/semantic. cross-repo-intelligence: match Routes/Channels across projects."New value: +"full: all+semantic; moderate: filtered+semantic; fast: filtered only; cross-repo-intelligence: link services." - changed
Input schema / properties / name / descriptionPrevious value: -"Override the derived project name. Non-ASCII bytes are encoded and unsafe path characters are normalized."New value: +"Name override; Non-ASCII bytes are encoded; unsafe characters normalized." - changed
Input schema / properties / persistence / descriptionPrevious value: -"Write compressed artifact to .codebase-memory/graph.db.zst for team sharing. Teammates can bootstrap from the artifact instead of full re-indexing."New value: +"Write .codebase-memory/graph.db.zst." - changed
Input schema / properties / repo_path / descriptionPrevious value: -"Path to the repository"New value: +"Repository path" - changed
Input schema / properties / target_projects / descriptionPrevious value: -"Projects to search for cross-repo links (cross-repo-intelligence mode). Use [\"*\"] for all indexed projects. Run list_projects to see available projects."New value: +"Cross-repo targets; [\"*\"] means all."
- Changed
index_status3 fields changed- added
Input schema / properties / diagnosticsAdded value: +{ + "default": "none", + "description": "Coverage rows: counts, five samples, or up to 500.", + "enum": [ + "none", + "summary", + "full" + ], + "type": "string" +} - added
Input schema / properties / formatAdded value: +{ + "default": "tree", + "enum": [ + "tree", + "json" + ], + "type": "string" +} - changed
Input schema / properties / verbose / descriptionPrevious value: -"Include the git context block (worktree/shadow path variants). Only needed when debugging where an index lives — omitted by default to keep the status lean."New value: +"Add worktree/shadow Git paths for index-location debugging."
- Changed
list_projects6 fields changed- added
Input schema / properties / detailAdded value: +{ + "default": "identity", + "description": "stats adds node/edge/database-size counts.", + "enum": [ + "identity", + "stats" + ], + "type": "string" +} - added
Input schema / properties / formatAdded value: +{ + "default": "tree", + "enum": [ + "tree", + "json" + ], + "type": "string" +} - added
Input schema / properties / include_detailsAdded value: +{ + "default": false, + "description": "Alias for detail=stats: include branch, node/edge counts and database size. Slower.", + "type": "boolean" +} - added
Input schema / properties / limitAdded value: +{ + "default": 50, + "maximum": 500, + "minimum": 1, + "type": "integer" +} - added
Input schema / properties / metadata_onlyAdded value: +{ + "default": false, + "description": "Compatibility: omit counts, size, and branch.", + "type": "boolean" +} - added
Input schema / properties / offsetAdded value: +{ + "default": 0, + "minimum": 0, + "type": "integer" +}
- Changed
manage_adr8 fields changed- changed
Input schema / properties / content / descriptionPrevious value: -"Complete replacement document required by update"New value: +"Whole document for update" - added
Input schema / properties / formatAdded value: +{ + "default": "tree", + "enum": [ + "tree", + "json" + ], + "type": "string" +} - added
Input schema / properties / mode / defaultAdded value: +"outline" - changed
Input schema / properties / mode / descriptionPrevious value: -"update replaces the entire ADR document; sections only lists existing headings"New value: +"outline pages headings; get reads; update replaces the whole document; set_sections rewrites only the named sections and leaves every other byte untouched (an identical repeated write is byte-identical, so retrying is safe); sections is legacy." - changed
Input schema / properties / mode / enumPrevious value: -[ - "get", - "update", - "sections" -]New value: +[ + "outline", + "get", + "update", + "set_sections", + "sections" +] - added
Input schema / properties / section_limitAdded value: +{ + "default": 50, + "maximum": 500, + "minimum": 1, + "type": "integer" +} - added
Input schema / properties / section_offsetAdded value: +{ + "default": 0, + "minimum": 0, + "type": "integer" +} - added
Input schema / properties / section_updatesAdded value: +{ + "additionalProperties": { + "type": "string" + }, + "description": "set_sections: section name -> new body. Any heading name works; names match exactly, including case.", + "type": "object" +}
- Changed
query_graph8 fields changed- added
Input schema / properties / cursorAdded value: +{ + "description": "Snapshot continuation; keep query/project/graph. Format, budget, and max_rows may change.", + "type": "string" +} - added
Input schema / properties / formatAdded value: +{ + "default": "tree", + "description": "tree may use local @N+suffix prefix refs; json uses direct strings.", + "enum": [ + "tree", + "json" + ], + "type": "string" +} - changed
Input schema / properties / graph / descriptionPrevious value: -"Which graph to query: the code knowledge graph (default) or the missed graph (only files not fully indexed, laid out as their file structure)."New value: +"code graph (default) or missed coverage-gap file tree." - added
Input schema / properties / max_output_tokensAdded value: +{ + "description": "Sizing hint; hard ceiling is 4 UTF-8 bytes/token. Rows stay whole.", + "maximum": 1000000, + "minimum": 128, + "type": "integer" +} - added
Input schema / properties / max_rows / defaultAdded value: +200 - changed
Input schema / properties / max_rows / descriptionPrevious value: -"Optional row limit. Default: unlimited up to a 100k row ceiling. No offset support — use search_graph for paginated browsing."New value: +"Visible rows (default 200; max 99998); 0 uses the legacy maximum. Evaluation is unchanged." - added
Input schema / properties / max_rows / minimumAdded value: +0 - added
Input schema / properties / offsetAdded value: +{ + "default": 0, + "description": "Live compatibility paging; cannot be combined with cursor.", + "minimum": 0, + "type": "integer" +}
- Changed
search_code18 fields changed- removed
Input schema / properties / context / descriptionRemoved value: -"Lines of context around each match (like grep -C). Only used in compact mode." - added
Input schema / properties / debugAdded value: +{ + "default": false, + "description": "Add scope_ms/scan_ms/enrich_ms phase timings.", + "type": "boolean" +} - added
Input schema / properties / directory_limitAdded value: +{ + "default": 20, + "maximum": 64, + "minimum": 0, + "type": "integer" +} - added
Input schema / properties / directory_offsetAdded value: +{ + "default": 0, + "minimum": 0, + "type": "integer" +} - removed
Input schema / properties / file_pattern / descriptionRemoved value: -"Glob for grep --include (e.g. *.go)" - added
Input schema / properties / formatAdded value: +{ + "default": "tree", + "enum": [ + "tree", + "json" + ], + "type": "string" +} - removed
Input schema / properties / limit / descriptionRemoved value: -"Max enriched results per call. Default 10. Response includes 'total_grep_matches' and 'total_results' so callers can detect truncation. No offset parameter — raise limit or narrow with file_pattern / path_filter to see more." - added
Input schema / properties / limit / maximumAdded value: +500 - added
Input schema / properties / match_limitAdded value: +{ + "default": 8, + "maximum": 500, + "minimum": 1, + "type": "integer" +} - added
Input schema / properties / max_output_tokensAdded value: +{ + "maximum": 1000000, + "minimum": 128, + "type": "integer" +} - removed
Input schema / properties / mode / descriptionRemoved value: -"compact: signatures+metadata (default). full: with source. files: just file list." - removed
Input schema / properties / path_filter / descriptionRemoved value: -"Regex filter on result file paths (e.g. ^src/ or \\.(go|ts)$)" - added
Input schema / properties / raw_content_offsetAdded value: +{ + "description": "Raw-line byte offset; omit for match-centered preview.", + "minimum": 0, + "type": "integer" +} - added
Input schema / properties / raw_limitAdded value: +{ + "default": 5, + "maximum": 100, + "minimum": 0, + "type": "integer" +} - added
Input schema / properties / raw_offsetAdded value: +{ + "default": 0, + "minimum": 0, + "type": "integer" +} - added
Input schema / properties / result_limitAdded value: +{ + "default": 10, + "maximum": 500, + "minimum": 1, + "type": "integer" +} - added
Input schema / properties / result_offsetAdded value: +{ + "default": 0, + "minimum": 0, + "type": "integer" +} - added
Input schema / properties / source_max_linesAdded value: +{ + "default": 20, + "maximum": 200, + "minimum": 1, + "type": "integer" +}
- Changed
search_graph14 fields changed- removed
Input schema / properties / detail / descriptionRemoved value: -"ids: bare qualified-name enumeration (one column) — cheapest form for wide sweeps where per-row metadata is noise. default: full rows." - removed
Input schema / properties / fields / descriptionRemoved value: -"Extra per-node property columns, e.g. complexity, cognitive, signature, docstring, return_type, is_test, lines(int). Core row columns (qn/label/file/lines/in/out) are always present — do not request them here. Missing values emit as empty cells." - removed
Input schema / properties / format / descriptionRemoved value: -"Response encoding. tree (default): prefix-grouped text rows. json: the SAME tree model as structured JSON (groups + column-ordered row arrays)." - added
Input schema / properties / limit / defaultAdded value: +50 - removed
Input schema / properties / limit / descriptionRemoved value: -"Max results per call. Default 50. Response carries 'total' (full match count) and 'has_more' (true if truncated) so callers can detect the limit and paginate." - added
Input schema / properties / limit / maximumAdded value: +500 - added
Input schema / properties / limit / minimumAdded value: +1 - added
Input schema / properties / max_output_tokensAdded value: +{ + "default": 3200, + "maximum": 1000000, + "minimum": 128, + "type": "integer" +} - removed
Input schema / properties / offset / descriptionRemoved value: -"Skip the first N matching nodes. Combine with 'limit' to page: increment offset by limit and re-call while has_more is true." - added
Input schema / properties / offset / minimumAdded value: +0 - removed
Input schema / properties / query / descriptionRemoved value: -"Natural-language or keyword full-text search using BM25 ranking. Tokens are split on whitespace; camelCase identifiers are indexed as individual words (updateCloudClient → update, cloud, client). Results are ranked with structural boosting: Functions/Methods +10, Routes +8, Classes/Interfaces +5. Noise labels (File/Folder/Module/Variable) are filtered out. When provided, name_pattern is ignored." - added
Input schema / properties / semantic_limitAdded value: +{ + "default": 50, + "maximum": 500, + "minimum": 0, + "type": "integer" +} - added
Input schema / properties / semantic_offsetAdded value: +{ + "default": 0, + "maximum": 99998, + "minimum": 0, + "type": "integer" +} - changed
Input schema / properties / semantic_query / descriptionPrevious value: -"MUST be an ARRAY of keyword strings (e.g. [\"send\",\"pubsub\",\"publish\"]) — NOT a single string. Each keyword is scored independently via per-keyword min-cosine; results reflect functions that score well on ALL keywords. Requires moderate/full index mode. Results appear in the 'semantic_results' field (separate from 'results')."New value: +"Not with query."
- Changed
trace_path11 fields changed- changed
Input schema / properties / cursor / descriptionPrevious value: -"Resume token from a previous response's 'next' field. Pass it back with ALL other arguments identical to get the following page with no duplicates. Cursors outlive nothing: after a reindex you get a stale_cursor error — just re-run the original query."New value: +"Pass next/next_cursor with traversal args unchanged; budget may increase." - added
Input schema / properties / depth / maximumAdded value: +15 - added
Input schema / properties / depth / minimumAdded value: +1 - changed
Input schema / properties / format / descriptionPrevious value: -"Response encoding. tree (default): prefix-grouped text rows. json: the SAME tree model as structured JSON (groups + column-ordered row arrays)."New value: +"tree chooses smaller complete direct/grouped output; json uses stable grouped tables." - changed
Input schema / properties / include_evidence / descriptionPrevious value: -"Add how each hop was resolved: a strategy class (lsp | language_rule | heuristic | unresolved) and the resolver's confidence. Off by default — it adds two columns per row. Use it to judge whether an edge is trustworthy, not to find edges."New value: +"Add resolver class and confidence." - removed
Input schema / properties / include_tests / descriptionRemoved value: -"Include test files in results. When false (default), test files are filtered out. When true, test nodes are included with a test column/marker." - changed
Input schema / properties / limit / descriptionPrevious value: -"Rows per page. callees_total/callers_total always carry the exact full counts; when a page is truncated the response carries next — see cursor."New value: +"Rows/page; gte flags the 5000-node engine ceiling." - added
Input schema / properties / max_output_tokensAdded value: +{ + "default": 3200, + "description": "Sizing hint; hard ceiling is 4 UTF-8 bytes/token. Evidence/args yield before nearest graph rows.", + "maximum": 1000000, + "minimum": 128, + "type": "integer" +} - changed
Input schema / properties / mode / descriptionPrevious value: -"calls: follow CALLS edges. data_flow: follow CALLS+DATA_FLOWS with arg expressions. cross_service: follow HTTP_CALLS+ASYNC_CALLS+DATA_FLOWS through Routes, plus CROSS_* cross-repo edges (CROSS_HTTP_CALLS/ASYNC_CALLS/CHANNEL/GRPC_CALLS/GRAPHQL_CALLS/TRPC_CALLS) to hop into other services."New value: +"calls, argument-aware data_flow, or service edges." - changed
Input schema / properties / parameter_name / descriptionPrevious value: -"For data_flow mode: scope trace to a specific parameter name"New value: +"data_flow parameter filter." - changed
Input schema / properties / risk_labels / descriptionPrevious value: -"Add risk classification (CRITICAL/HIGH/MEDIUM/LOW) based on hop distance"New value: +"Add hop-risk labels."
15 tool updates
v0.10.4- Changed
check_index_coverage4 fields changed- removed
Input schema / anyOfRemoved value: -[ - { - "required": [ - "paths" - ] - }, - { - "required": [ - "scopes" - ] - } -] - changed
Input schema / properties / paths / descriptionPrevious value: -"Repository-relative files to check exactly."New value: +"Repository-relative files to check exactly. Required if 'scopes' is omitted." - changed
Input schema / properties / scopes / descriptionPrevious value: -"Repository-relative path prefixes; use . for the project root."New value: +"Repository-relative path prefixes; use . for the project root. Required if 'paths' is omitted." - changed
Output schema / (root)Previous value: -{ - "additionalProperties": true, - "type": "object" -}New value: +null
- Changed
delete_project1 field changed- changed
Output schema / (root)Previous value: -{ - "additionalProperties": true, - "type": "object" -}New value: +null
- Changed
detect_changes1 field changed- changed
Output schema / (root)Previous value: -{ - "additionalProperties": true, - "type": "object" -}New value: +null
- Changed
get_architecture1 field changed- changed
Output schema / (root)Previous value: -{ - "additionalProperties": true, - "type": "object" -}New value: +null
- Changed
get_code_snippet1 field changed- changed
Output schema / (root)Previous value: -{ - "additionalProperties": true, - "type": "object" -}New value: +null
- Changed
get_graph_schema1 field changed- changed
Output schema / (root)Previous value: -{ - "additionalProperties": true, - "type": "object" -}New value: +null
- Changed
index_repository1 field changed- changed
Output schema / (root)Previous value: -{ - "additionalProperties": true, - "type": "object" -}New value: +null
- Changed
index_status1 field changed- changed
Output schema / (root)Previous value: -{ - "additionalProperties": true, - "type": "object" -}New value: +null
- Changed
ingest_traces1 field changed- changed
Output schema / (root)Previous value: -{ - "additionalProperties": true, - "type": "object" -}New value: +null
- Changed
list_projects1 field changed- changed
Output schema / (root)Previous value: -{ - "additionalProperties": true, - "type": "object" -}New value: +null
- Changed
manage_adr1 field changed- changed
Output schema / (root)Previous value: -{ - "additionalProperties": true, - "type": "object" -}New value: +null
- Changed
query_graph1 field changed- changed
Output schema / (root)Previous value: -{ - "additionalProperties": true, - "type": "object" -}New value: +null
- Changed
search_code2 fields changed- added
Input schema / properties / limit / minimumAdded value: +1 - changed
Output schema / (root)Previous value: -{ - "additionalProperties": true, - "type": "object" -}New value: +null
- Changed
search_graph1 field changed- changed
Output schema / (root)Previous value: -{ - "additionalProperties": true, - "type": "object" -}New value: +null
- Changed
trace_path1 field changed- changed
Output schema / (root)Previous value: -{ - "additionalProperties": true, - "type": "object" -}New value: +null
11 tool updates
v0.10.0- Added
check_index_coverage - Added
delete_project - Added
detect_changes - Changed
get_architecture2 fields changed- changed
Input schema / properties / aspects / descriptionPrevious value: -"Aspects to include. 'all' = everything; 'overview' = compact summary (all except file_tree); omit = all."New value: +"Aspects to include. 'all' = everything; 'overview' = compact summary (all except file_tree); omit = all. 'cycles' is opt-in ONLY (never via all/overview): it scans the whole call graph for circular CALLS dependencies (SCCs of size > 1)." - changed
Input schema / properties / aspects / items / enumPrevious value: -[ - "all", - "overview", - "structure", - "dependencies", - "routes", - "languages", - "packages", - "entry_points", - "hotspots", - "boundaries", - "layers", - "file_tree", - "clusters" -]New value: +[ + "all", + "overview", + "structure", + "dependencies", + "routes", + "languages", + "packages", + "entry_points", + "hotspots", + "boundaries", + "layers", + "file_tree", + "clusters", + "cycles" +]
- Added
index_status - Added
ingest_traces - Added
list_projects - Added
manage_adr - Changed
query_graph1 field changed- added
Input schema / properties / graphAdded value: +{ + "default": "code", + "description": "Which graph to query: the code knowledge graph (default) or the missed graph (only files not fully indexed, laid out as their file structure).", + "enum": [ + "code", + "missed" + ], + "type": "string" +}
- Changed
search_graph4 fields changed- added
Input schema / properties / detailAdded value: +{ + "default": "default", + "description": "ids: bare qualified-name enumeration (one column) — cheapest form for wide sweeps where per-row metadata is noise. default: full rows.", + "enum": [ + "ids", + "default" + ], + "type": "string" +} - added
Input schema / properties / fieldsAdded value: +{ + "description": "Extra per-node property columns, e.g. complexity, cognitive, signature, docstring, return_type, is_test, lines(int). Core row columns (qn/label/file/lines/in/out) are always present — do not request them here. Missing values emit as empty cells.", + "items": { + "type": "string" + }, + "type": "array" +} - added
Input schema / properties / formatAdded value: +{ + "default": "tree", + "description": "Response encoding. tree (default): prefix-grouped text rows. json: the SAME tree model as structured JSON (groups + column-ordered row arrays).", + "enum": [ + "tree", + "json" + ], + "type": "string" +} - changed
Input schema / properties / limit / descriptionPrevious value: -"Max results per call. Default 200. Response carries 'total' (full match count) and 'has_more' (true if truncated) so callers can detect the limit and paginate."New value: +"Max results per call. Default 50. Response carries 'total' (full match count) and 'has_more' (true if truncated) so callers can detect the limit and paginate."
- Changed
trace_path5 fields changed- added
Input schema / properties / cursorAdded value: +{ + "description": "Resume token from a previous response's 'next' field. Pass it back with ALL other arguments identical to get the following page with no duplicates. Cursors outlive nothing: after a reindex you get a stale_cursor error — just re-run the original query.", + "type": "string" +} - added
Input schema / properties / formatAdded value: +{ + "default": "tree", + "description": "Response encoding. tree (default): prefix-grouped text rows. json: the SAME tree model as structured JSON (groups + column-ordered row arrays).", + "enum": [ + "tree", + "json" + ], + "type": "string" +} - added
Input schema / properties / include_evidenceAdded value: +{ + "default": false, + "description": "Add how each hop was resolved: a strategy class (lsp | language_rule | heuristic | unresolved) and the resolver's confidence. Off by default — it adds two columns per row. Use it to judge whether an edge is trustworthy, not to find edges.", + "type": "boolean" +} - changed
Input schema / properties / include_tests / descriptionPrevious value: -"Include test files in results. When false (default), test files are filtered out. When true, test nodes are included with is_test=true marker."New value: +"Include test files in results. When false (default), test files are filtered out. When true, test nodes are included with a test column/marker." - added
Input schema / properties / limitAdded value: +{ + "default": 100, + "description": "Rows per page. callees_total/callers_total always carry the exact full counts; when a page is truncated the response carries next — see cursor.", + "maximum": 5000, + "minimum": 1, + "type": "integer" +}
14 tool updates
v0.9.0- Removed
delete_project - Removed
detect_changes - Changed
get_architecture4 fields changed- added
Input schema / properties / aspects / descriptionAdded value: +"Aspects to include. 'all' = everything; 'overview' = compact summary (all except file_tree); omit = all." - added
Input schema / properties / aspects / items / enumAdded value: +[ + "all", + "overview", + "structure", + "dependencies", + "routes", + "languages", + "packages", + "entry_points", + "hotspots", + "boundaries", + "layers", + "file_tree", + "clusters" +] - added
Input schema / properties / pathAdded value: +{ + "description": "Optional directory prefix to scope architecture (e.g. apps/hoa)", + "type": "string" +} - changed
Output schema / (root)Previous value: -nullNew value: +{ + "additionalProperties": true, + "type": "object" +}
- Changed
get_code_snippet1 field changed- changed
Output schema / (root)Previous value: -nullNew value: +{ + "additionalProperties": true, + "type": "object" +}
- Changed
get_graph_schema1 field changed- changed
Output schema / (root)Previous value: -nullNew value: +{ + "additionalProperties": true, + "type": "object" +}
- Changed
index_repository2 fields changed- added
Input schema / properties / nameAdded value: +{ + "description": "Override the derived project name. Non-ASCII bytes are encoded and unsafe path characters are normalized.", + "type": "string" +} - changed
Output schema / (root)Previous value: -nullNew value: +{ + "additionalProperties": true, + "type": "object" +}
- Removed
index_status - Removed
ingest_traces - Removed
list_projects - Removed
manage_adr - Changed
query_graph1 field changed- changed
Output schema / (root)Previous value: -nullNew value: +{ + "additionalProperties": true, + "type": "object" +}
- Changed
search_code1 field changed- changed
Output schema / (root)Previous value: -nullNew value: +{ + "additionalProperties": true, + "type": "object" +}
- Changed
search_graph1 field changed- changed
Output schema / (root)Previous value: -nullNew value: +{ + "additionalProperties": true, + "type": "object" +}
- Changed
trace_path2 fields changed- changed
Input schema / properties / mode / descriptionPrevious value: -"calls: follow CALLS edges. data_flow: follow CALLS+DATA_FLOWS with arg expressions. cross_service: follow HTTP_CALLS+ASYNC_CALLS+DATA_FLOWS through Routes."New value: +"calls: follow CALLS edges. data_flow: follow CALLS+DATA_FLOWS with arg expressions. cross_service: follow HTTP_CALLS+ASYNC_CALLS+DATA_FLOWS through Routes, plus CROSS_* cross-repo edges (CROSS_HTTP_CALLS/ASYNC_CALLS/CHANNEL/GRPC_CALLS/GRAPHQL_CALLS/TRPC_CALLS) to hop into other services." - changed
Output schema / (root)Previous value: -nullNew value: +{ + "additionalProperties": true, + "type": "object" +}
14 tool updates
v1.0.0- First observed
delete_project - First observed
detect_changes - First observed
get_architecture - First observed
get_code_snippet - First observed
get_graph_schema - First observed
index_repository - First observed
index_status - First observed
ingest_traces - First observed
list_projects - First observed
manage_adr - First observed
query_graph - First observed
search_code - First observed
search_graph - First observed
trace_path
TDQS
Scored across 17 tools
Most tools have clearly distinct purposes, but search_graph and search_code both perform search (symbol vs text) and query_graph vs trace_path both involve graph traversal, which could cause misselection. Descriptions help differentiate them, but a couple of pairs remain potentially confusing.
Tool names mostly follow a snake_case verb_noun pattern (get_architecture, index_repository, search_graph, delete_project). Minor deviations exist: index_status is ambiguous (verb vs noun) and manage_adr is vague, but overall the pattern is predictable.
17 tools is slightly above the ideal 3-15 range, but each tool has a specific role in codebase indexing, querying, and analysis. The count feels a bit heavy but not excessive given the domain breadth.
The surface covers core workflows: indexing, searching, querying, tracing, snippet retrieval, architecture overview, project management, and diff detection. Minor gaps exist, such as ingest_traces not implementing edge creation and no direct file listing tool, but most operations can be completed or worked around.
Maintenance
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