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UwUGreed

Obsidian MCP Wrapper

by UwUGreed

Obsidian MCP Wrapper

Obsidian MCP Wrapper is a session-stateless MCP retrieval system for an agency Obsidian vault. It gives Claude Desktop users controlled access to indexed Markdown knowledge without giving the model direct, unbounded filesystem access or unsupervised write privileges.

The runtime has two layers:

  • pf-mcp: a lightweight STDIO MCP shim that runs on each Claude Desktop workstation.

  • pf-index: a shared LAN/VPN retrieval service that owns the vault index, signed handles, bearer-token authentication, rate limits, write locking, and the audit log.

The design goal is progressive disclosure: search returns compact snippets and signed section handles first, then Claude expands only the context it needs.

Highlights

  • Standard-library core runtime for the default HTTP server path.

  • Optional FastAPI/uvicorn ASGI boundary.

  • SQLite FTS5 lexical search over immutable vault index epochs.

  • HMAC-signed section handles that resolve against retained snapshots.

  • Manifest-only filesystem access for indexed Markdown paths.

  • Human-gated append writes into client, provider, carrier, and operational notes.

  • Autonomous AI notes routed to a rotated capture inbox by default.

  • File locking and SQLite audit records for write operations.

  • Sanitized error envelopes that avoid leaking paths, tokens, URLs, or tracebacks into Claude.

  • Quick-start, deployment, teardown, and nightly-refresh scripts.

Related MCP server: MCP Tools for Obsidian

Runtime Topology

Claude Desktop
  -> STDIO MCP JSON-RPC
  -> pf-mcp workstation shim
  -> HTTP POST /tools/<tool_name>
  -> pf-index LAN/VPN service
  -> Obsidian_Vault Markdown snapshots and .pf_index artifacts

pf-index consumes Markdown and derived index artifacts. It does not need the source DuckDB database at runtime.

Repository Layout

.
|-- Docs/
|   |-- ARCHITECTURE.md
|   |-- DEPLOYMENT.md
|   |-- QUICKSTART.md
|   `-- MCP_WRAPPER_MASTER_PROMPT.md
|-- config/
|   |-- claude_desktop_config.example.json
|   |-- deployment_manifest.example.json
|   |-- pf-index.example.toml
|   `-- pf-mcp.env.example
|-- pf_index/
|   |-- api/                 HTTP boundaries
|   |-- core/                indexing, retrieval, crypto, paths, writes
|   `-- config.py            TOML and environment configuration
|-- pf_mcp/
|   `-- main.py              STDIO MCP shim
|-- scripts/
|   |-- build_index.py
|   |-- run_pf_index.py
|   |-- quickstart.sh
|   |-- quickstart_teardown.sh
|   |-- nightly_refresh.sh
|   |-- deploy_interactive.sh
|   `-- deploy_teardown.sh
|-- tests/
|-- pyproject.toml
`-- requirements.lock

MCP Tools

The shim exposes these tools to Claude:

Tool

Purpose

vault_search

Search indexed vault sections and return snippets with signed handles.

strategy_search

Search strategy, advisory, sales, renewal, and operating-system material.

find_note

Find likely note paths by query.

get_note_summary

Return a bounded summary/outline for one note path.

get_entity_context

Entity-oriented search wrapper.

search_tables

Search indexed table-like content.

read_section

Resolve one signed handle into a larger section excerpt.

expand_context

Resolve several signed handles within a token budget.

get_full_profile

Retrieve full materialized context for one known client or provider.

advisory_context

Combine profile evidence with strategy context for planning questions.

vault_stats

Return index and vault statistics.

append_human_note

Append a factual note through the gated write pipeline.

remove_note

Remove a specific generated note entry by note id.

Security Model

Important boundaries:

  • The MCP shim validates argument shapes and hard limits before forwarding to the LAN service.

  • The LAN service requires Authorization: Bearer <token>.

  • Tokens map to user ids for audit and idempotency.

  • Runtime reads are limited to paths listed in the active index manifest.

  • Path validation rejects absolute paths, traversal, null bytes, URL schemes, Windows drive paths, and backslash paths.

  • Section handles contain path, line range, content hash, file hash, vault id, and index epoch, then are signed with HMAC-SHA256.

  • Old handles resolve against retained immutable snapshots, not changed live vault files.

  • Autonomous writes are redirected to the configured capture inbox unless the human explicitly directs a write to a specific note.

  • Write operations are append-only/gated, locked, audited, and bounded by configured note length limits.

Requirements

  • Python 3.11 or newer

  • Markdown Obsidian vault directory

  • HMAC secret for handle signing

  • One or more bearer tokens for users

The default pf_index.api.server HTTP boundary uses only the Python standard library. Optional FastAPI dependencies are listed in requirements.lock:

python -m pip install -r requirements.lock

Quick Start

For a complete local smoke test, use the maintained guide:

sed -n '1,240p' Docs/QUICKSTART.md

The short version:

export PF_APP_DIR="$PWD"
export PF_DEMO_ROOT=/tmp/pf-mcp-demo
export PF_VAULT_ROOT="$PF_DEMO_ROOT/Obsidian_Vault"
export PF_INDEX_ROOT="$PF_DEMO_ROOT/.pf_index"
export PF_AUDIT_DB="$PF_INDEX_ROOT/write_audit.sqlite"
export PF_INDEX_HMAC_SECRET="local-demo-secret-change-me"
export PF_INDEX_TOKEN="local-demo-token"
export PF_INDEX_CONFIG="$PF_DEMO_ROOT/pf-index.toml"

Create a small test vault and config as shown in Docs/QUICKSTART.md, then build an index:

PYTHONPATH="$PF_APP_DIR" python -m scripts.build_index \
  --config "$PF_INDEX_CONFIG" \
  --epoch 2026-06-08T120000Z

Run the stdlib HTTP server:

PYTHONPATH="$PF_APP_DIR" \
PF_INDEX_HMAC_SECRET="$PF_INDEX_HMAC_SECRET" \
python -m pf_index.api.server \
  --host 127.0.0.1 \
  --port 8765 \
  --config "$PF_INDEX_CONFIG"

Search through the API:

curl -s \
  -H "Authorization: Bearer $PF_INDEX_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{"query":"Coverage","max_results":3,"max_tokens":1000}' \
  http://127.0.0.1:8765/tools/vault_search \
  | python -m json.tool

List MCP tools through the shim:

printf '%s\n' '{"jsonrpc":"2.0","id":1,"method":"tools/list","params":{}}' \
  | PYTHONPATH="$PF_APP_DIR" \
    PF_INDEX_URL="http://127.0.0.1:8765" \
    PF_INDEX_TOKEN="$PF_INDEX_TOKEN" \
    python -m pf_mcp.main \
  | python -m json.tool

Or run the automated path:

bash scripts/quickstart.sh

Tear down demo artifacts:

bash scripts/quickstart_teardown.sh

Configuration

Server-side config lives in TOML. Start from:

cp config/pf-index.example.toml pf-index.toml

Key sections:

  • [paths]: vault_root, index_root, and audit_db

  • [limits]: result, token, note length, lock timeout, and concurrency limits

  • [security]: vault_id and HMAC secret source

  • [tokens]: bearer token to user id map

  • [inbox]: rotated inbox path for autonomous captures

  • [retention]: retained immutable index epochs

Workstation shim config is environment-based. Start from:

cp config/pf-mcp.env.example pf-mcp.env

Claude Desktop config example:

cat config/claude_desktop_config.example.json

Indexing

Build an immutable index epoch:

PYTHONPATH="$PWD" python -m scripts.build_index --config /path/to/pf-index.toml

Each epoch contains:

.pf_index/builds/<epoch>/
|-- manifest.json
|-- lexical.sqlite
`-- content/<sha256-of-relative-path>.md

The active epoch is selected through .pf_index/ACTIVE. Rolling back is a controlled edit of that pointer to a retained epoch.

Running The Service

Default stdlib server:

PYTHONPATH="$PWD" python -m pf_index.api.server \
  --host 127.0.0.1 \
  --port 8765 \
  --config /path/to/pf-index.toml

Optional FastAPI boundary:

python -m pip install -r requirements.lock
PYTHONPATH="$PWD" uvicorn pf_index.api.fastapi_app:create_app --factory \
  --host 127.0.0.1 \
  --port 8765

Testing

Run acceptance and structure tests:

PYTHONDONTWRITEBYTECODE=1 python -m unittest discover -s tests -v

The tests focus on safety contracts such as path validation, signed handles, indexing behavior, write routing, and repository structure.

Deployment

Use Docs/DEPLOYMENT.md for the production runbook. It covers:

  • Dedicated service user and filesystem permissions

  • Code and vault placement

  • HMAC secret generation

  • User token generation

  • Index build and startup checks

  • systemd service setup

  • LAN/VPN binding and firewall posture

  • Runtime egress denial

  • Token rotation

  • Audit recovery

  • Rollback

scripts/deploy_interactive.sh and scripts/deploy_teardown.sh support guided deployment and cleanup flows.

Nightly Refresh

scripts/nightly_refresh.sh supports a scheduled flow:

sync or refresh source data
  -> optionally rebuild Markdown vault from DuckDB
  -> build a new immutable index epoch
  -> atomically update ACTIVE

If DuckDB-to-Markdown generation happens elsewhere, omit PF_SOURCE_DATABASE and rebuild the index from the current vault.

Data Boundary

Do not commit or deploy local data artifacts:

  • agency_core.duckdb

  • Generated Obsidian_Vault/

  • .pf_index/ builds

  • .obsidian/

  • .vault_salt

  • Real .env files

  • Audit databases

  • Exported CSVs, spreadsheets, or reports

The repository is meant to contain application code, tests, docs, and placeholder configuration only.

Further Reading

  • Docs/ARCHITECTURE.md for the full design and safety model

  • Docs/QUICKSTART.md for local smoke testing

  • Docs/DEPLOYMENT.md for production operations

  • Docs/MCP_WRAPPER_MASTER_PROMPT.md for operator-facing MCP usage guidance

Available Tools

13 tools
advisory_contextD

advisory_context

ParametersJSON Schema
NameRequiredDescriptionDefault
pathNo
queryNo
max_tokensNo
strategy_queryNo

TDQS

D1.1/5.0
Behavior1/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

No annotations are provided and the description discloses no behavioral traits, side effects, or operational context. The description carries the full burden and entirely fails to address it.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness2/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is extremely short but this is under-specification rather than conciseness. A single word that repeats the tool name adds no value, so it fails to earn its place.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness1/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

With four parameters, no output schema, and no annotations, the description is severely incomplete. It does not hint at the tool's function, return value, or how it differs from a large set of sibling tools.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters1/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The schema has four parameters (path, query, max_tokens, strategy_query) with no descriptions, and the tool description does not clarify their purpose or relationships. Schema coverage is 0% and the description provides no compensation.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose1/5

Does the description clearly state what the tool does and how it differs from similar tools?

Tautological: description restates name/title.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines1/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

There is no guidance on when to use this tool versus the sibling tools. The empty description gives no context for selection.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

append_human_noteD

append_human_note

ParametersJSON Schema
NameRequiredDescriptionDefault
pathYes
headingNo
evidenceYes
note_textYes
is_human_directedYes

TDQS

D1.1/5.0
Behavior1/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

No annotations are provided, and the description does not disclose that this is a mutation/write operation, any side effects, or required permissions. The name implies appending, but that is not stated behavior.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness2/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is a single placeholder token, which is under-specification rather than conciseness. It does not communicate any useful information, so it does not earn its place.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness1/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

With 5 parameters, no output schema, and no annotations, the description carries the full burden but offers nothing. An agent would be completely lost on how to invoke this tool correctly.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters1/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 0%, and the tool description provides no parameter semantics. While parameter names like 'path' and 'note_text' give hints, others like 'evidence' and 'is_human_directed' remain unexplained.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose1/5

Does the description clearly state what the tool does and how it differs from similar tools?

Tautological: description restates name/title.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines1/5

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 like find_note or read_section. There is no mention of use cases, prerequisites, or exclusions.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

expand_contextD

expand_context

ParametersJSON Schema
NameRequiredDescriptionDefault
handlesYes
max_tokensNo

TDQS

D1.3/5.0
Behavior1/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations and a one-word description, there is zero disclosure of behavioral traits. The tool could be read-only, destructive, rate-limited, or stateful—nothing is communicated.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness2/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is minimal but not usefully concise. It is under-specification, not efficient writing. There is no front-loaded meaning or structural benefit.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness1/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

The tool has two parameters, one required, with a nested object shape, no output schema, and no annotations. The description fails to explain what 'expand_context' does, when it is appropriate, or what the parameters mean, making it completely inadequate.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters1/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 0%, and the description does not compensate. The parameters 'handles' and 'max_tokens' are left completely unexplained, despite their complex nested structure.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose1/5

Does the description clearly state what the tool does and how it differs from similar tools?

Tautological: description restates name/title.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

There is no guidance on when to use this tool versus alternatives like get_entity_context or advisory_context. No context is provided about applicable scenarios or exclusions.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

find_noteD

find_note

ParametersJSON Schema
NameRequiredDescriptionDefault
queryYes
max_resultsNo

TDQS

D1.1/5.0
Behavior1/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

With no annotations and a one-word description, the behavioral burden is entirely on the description, which reveals nothing about side effects, return format, or operational characteristics. The agent cannot know if this is a read-only operation or something else.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness2/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is extremely short, but this is under-specification rather than effective conciseness. Every sentence should earn its place, but here there is not even a sentence, and the single word adds no value.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness1/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given no output schema, no annotations, and zero parameter descriptions, the description is completely inadequate. Even for a simple search tool, the agent needs at least some indication of what results look like or what the query format is.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters1/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The schema shows two parameters (query, max_results) with zero description coverage. The description adds no semantic meaning to any parameter, so the agent receives no help beyond the bare type and requiredness.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose1/5

Does the description clearly state what the tool does and how it differs from similar tools?

Tautological: description restates name/title.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines1/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

There is absolutely no guidance on when to use this tool versus alternatives. No context, prerequisites, or exclusions are provided, leaving the agent without any decision-making support.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

get_entity_contextD

get_entity_context

ParametersJSON Schema
NameRequiredDescriptionDefault
queryYes
max_tokensNo
max_resultsNo

TDQS

D1.1/5.0
Behavior1/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

No annotations are provided, so the description carries the full burden of behavioral disclosure. The description is absent, offering no information about side effects, output, or operational constraints.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness2/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is extremely short, but this is under-specification rather than effective conciseness. It fails to earn its place as a useful description, adding no value beyond the tool name.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness1/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given there are 3 parameters, no output schema, and no annotations, the description is completely inadequate. It provides no context for how the tool operates, returns data, or integrates with sibling tools.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters1/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 0%, and the description provides no explanation of parameters. The schema lists 'query', 'max_tokens', and 'max_results' with types only, leaving their semantics entirely undocumented.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose1/5

Does the description clearly state what the tool does and how it differs from similar tools?

Tautological: description restates name/title.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines1/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

There is no guidance on when to use this tool versus alternatives. Sibling tools such as 'vault_search' and 'strategy_search' exist, but the description provides no contextual distinction.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

get_full_profileD

get_full_profile

ParametersJSON Schema
NameRequiredDescriptionDefault
pathNo
queryNo
max_tokensNo

TDQS

D1.1/5.0
Behavior1/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

No annotations are provided, so the description carries the full burden of behavioral disclosure. It says nothing about what a 'profile' is, what data it returns, whether it has side effects, or any rate limits or permissions needed.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness2/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is extremely short, but this is under-specification rather than conciseness. One sentence (or word) does not earn its place if it provides zero information beyond the name.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness1/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

With 3 parameters, no annotations, no output schema, and no description content, the definition is completely inadequate for an agent to select or invoke the tool correctly. It offers no context about the tool's purpose, use case, or expected behavior.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters1/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 0%, and the description adds no meaning to the parameters (path, query, max_tokens). The schema only provides names and types, leaving the agent without any understanding of what each parameter should contain.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose1/5

Does the description clearly state what the tool does and how it differs from similar tools?

Tautological: description restates name/title.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines1/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

There is no guidance on when to use this tool or when to prefer an alternative like get_note_summary or expand_context. No context, prerequisites, or exclusions are mentioned.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

get_note_summaryD

get_note_summary

ParametersJSON Schema
NameRequiredDescriptionDefault
pathYes

TDQS

D1.1/5.0
Behavior1/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

No annotations are provided, and the description discloses zero behavioral traits—what it does, side effects, prerequisites, return format, or limitations. The full burden falls on the description, which is empty.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness2/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is short but this is under-specification rather than conciseness. No useful information is provided, so it fails to earn its place.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness1/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

With one parameter, no output schema, and no annotations, the description is completely inadequate. Even a minimal tool needs some detail about what the summary contains or how the path is used.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters1/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The only parameter 'path' has no description in the schema, and the description adds no meaning. With 0% schema coverage and no explanatory text, the agent has no idea what value to pass or its format.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose1/5

Does the description clearly state what the tool does and how it differs from similar tools?

Tautological: description restates name/title.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines1/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

No guidance is given about when to use this tool versus the many sibling tools (vault_search, find_note, read_section, etc.). There is no context or alternative indication.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

read_sectionD

read_section

ParametersJSON Schema
NameRequiredDescriptionDefault
handleYes
max_tokensNo

TDQS

D1.1/5.0
Behavior1/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

No annotations are provided, and the description contains no behavioral details. The agent is left without any information about side effects, permissions, pagination, or return format, making this a complete transparency failure.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness2/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Although the description is short, it is under-specified rather than concise. A single word adds no value and forces the agent to rely entirely on the schema, which itself lacks descriptions. This is closer to an empty placeholder than effective conciseness.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness1/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the nested schema, lack of output schema, and absence of annotations, the description is severely inadequate. It provides no context about what a 'section' is, how the handle works, or what the tool returns, making it nearly unusable for correct invocation.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters1/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The description adds no meaning to the schema. The schema has two parameters (handle and max_tokens) with no descriptions, and schema coverage is 0%. The description does not mention parameters or how to construct them, so the agent cannot infer their purpose.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose1/5

Does the description clearly state what the tool does and how it differs from similar tools?

Tautological: description restates name/title.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines1/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

There is no guidance on when to use this tool versus alternatives. The description provides no context about the intended use case, prerequisites, or situations to avoid.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

remove_noteD

remove_note

ParametersJSON Schema
NameRequiredDescriptionDefault
pathYes
reasonNo
headingNo
note_idYes

TDQS

D1.1/5.0
Behavior1/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

No annotations are provided, so the description carries the full burden of disclosing behavior. It discloses nothing about whether this is a destructive action, whether it requires permissions, whether removal is reversible, or what the impact on linked data might be. The bare name 'remove_note' implies mutation but offers no behavioral context.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness2/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is a single word, which is technically concise, but this is under-specification rather than conciseness. It omits all essential information, so the brevity is not earned; every useful sentence is missing.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness1/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

The tool has four parameters, two required, no output schema, and no annotations. A robust description is essential here, but the description provides zero explanatory content. It is completely inadequate for the tool's complexity.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters1/5

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 not explain any of the four parameters (path, reason, heading, note_id) or their roles. The schema provides only names and types, leaving the agent to infer semantics from parameter names alone, which is insufficient.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose1/5

Does the description clearly state what the tool does and how it differs from similar tools?

Tautological: description restates name/title.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines1/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

There is no guidance on when to use this tool versus alternatives. The description gives no context, prerequisites, or exclusions, leaving the agent without any basis for tool selection.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

search_tablesD

search_tables

ParametersJSON Schema
NameRequiredDescriptionDefault
queryNo
max_resultsNo

TDQS

D1.1/5.0
Behavior1/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

No annotations are provided, and the description discloses no behavioral traits such as read-only vs. mutating, required permissions, or return format. The tool's behavior is completely opaque.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness2/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is extremely short but this is under-specification, not conciseness. It fails to provide any substantive content beyond the name.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness1/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a tool with 2 parameters and no output schema or annotations, the description is wholly inadequate. It provides no functional details and leaves the agent without any guidance for correct invocation.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters1/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 0% and the description adds no meaning to the query and max_results parameters. The agent cannot infer what 'query' refers to or how max_results behaves.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose1/5

Does the description clearly state what the tool does and how it differs from similar tools?

Tautological: description restates name/title.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines1/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

There is no guidance on when to use this tool versus alternatives like vault_search or strategy_search. The description offers no context or exclusions.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

vault_statsD

vault_stats

ParametersJSON Schema
NameRequiredDescriptionDefault

No parameters

TDQS

D1.6/5.0
Behavior1/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

No annotations are provided, so the description must carry the full burden of behavioral disclosure. It fails completely, disclosing nothing about side effects, return values, permissions, or any other behavioral traits. A tool named 'vault_stats' could return statistics, but this is not stated.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness2/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is extremely concise, but it is under-specified rather than appropriately concise. A single word that repeats the tool name does not earn its place; it provides no informative content. This is analogous to the 'Process' example, which scored 2 for being an under-specification.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness1/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the complete absence of annotations, output schema, and any descriptive text, the description is entirely inadequate for understanding the tool's functionality, input, or output. Even with no parameters, an agent cannot know what 'vault_stats' does or what it returns, making this far from complete.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The tool has zero parameters, as indicated by the empty input schema, so there are no parameter meanings to clarify. The baseline for 0 parameters is 4, and the description does not introduce any confusion or contradiction. However, the description also adds no value beyond the schema for this dimension.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose1/5

Does the description clearly state what the tool does and how it differs from similar tools?

Tautological: description restates name/title.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines1/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

There is no guidance whatsoever on when to use this tool versus alternatives. No context about typical use cases, prerequisites, or exclusions is provided. The description offers zero practical help for an agent deciding between this and the sibling tools.

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. Dates show when Glama detected each change.

  1. 13 tool updatesv0.1.0
    • First observedadvisory_context
    • First observedappend_human_note
    • First observedexpand_context
    • First observedfind_note
    • First observedget_entity_context
    • First observedget_full_profile
    • First observedget_note_summary
    • First observedread_section
    • First observedremove_note
    • First observedsearch_tables
    • First observedstrategy_search
    • First observedvault_search
    • First observedvault_stats

TDQS

D1.8/5.0

Scored across 13 tools

Disambiguation2/5

Multiple tools overlap in purpose: vault_search, strategy_search, find_note, and search_tables all appear to perform search-like operations with unclear distinctions. Similarly, get_entity_context, get_full_profile, and advisory_context all seem to provide contextual or profile information, making it difficult for an agent to choose the right tool.

Naming Consistency3/5

Most tools follow a verb_noun pattern (find_note, get_note_summary, read_section), but vault_search and advisory_context break this convention, and search_tables mixes the order. The inconsistency is moderate, not chaotic, but noticeable.

Tool Count5/5

13 tools is well within the typical 3-15 range and seems appropriately scoped for an Obsidian wrapper covering search, retrieval, and basic note management. The number does not feel excessive or thin.

Completeness3/5

The tool set covers search and read operations comprehensively, but lacks an explicit update or edit tool. append_human_note may create or append, but there is no clear mechanism to modify existing notes, which leaves a notable gap for a note management server.

Maintenance

ActivityStale
ResponsivenessNo issues

Resources

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