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MCK564

token-context-mcp

by MCK564

Token Context MCP

token-context-mcp es un servidor MCP local de solo lectura que indexa repositorios registrados y devuelve pequeños paquetes de contexto de código con hash de fuente. Está diseñado para reducir el rastreo amplio de repositorios sin pretender que el análisis sintáctico sea un modelo semántico completo.

Qué se implementa en 0.1.0

  • registro explícito de repositorios; las herramientas MCP reciben un repo_id, nunca una ruta arbitraria;

  • análisis sintáctico con Tree-sitter para Python, JavaScript y TypeScript/TSX;

  • instantáneas SQLite con archivos, símbolos, aristas léxicas, manifiestos y hashes de fuente;

  • mapas de repositorio con presupuesto de tokens, esqueletos respaldados por la fuente, contexto de símbolos y segmentos de impacto acotados;

  • superficie de herramientas estrictamente de solo lectura sobre MCP stdio;

  • reglas de denegación estricta para secretos/metadatos, comprobaciones de recorrido de rutas/puntos de reparse y límites de recursos;

  • bancos de pruebas de seguridad, integración y rendimiento que reportan evidencia en lugar de afirmar ahorros universales.

Related MCP server: io.github.pmgarg/cgraphy

No objetivos y límite de seguridad

Este servidor no edita archivos, no ejecuta comandos de shell, no escucha en HTTP, no llama a APIs de red ni acepta rutas de repositorio arbitrarias. stdio no es un sandbox del sistema operativo: despliegue con una política de no-egress/mínimos privilegios si se requiere un límite de red impuesto. Los resultados de las herramientas pueden colocarse igualmente en el contexto LLM del host MCP.

Inicio rápido

uv sync --extra dev
uv run token-context register --repo-id demo --root D:\AI\some-repo
uv run token-context index --repo-id demo
uv run token-context status --repo-id demo
uv run token-context serve

De forma predeterminada, el registro es global para el usuario actual de Windows en %APPDATA%\token-context-mcp\repos.toml; es independiente del directorio de trabajo actual. Defina TOKEN_CONTEXT_CONFIG para usar una ruta TOML explícita, compartida o portátil. Para Codex, inicie el paquete mediante un comando MCP stdio configurado. Use únicamente las herramientas de solo lectura que lista el servidor.

Registrar repositorios de forma segura

El registro es una decisión explícita de lista de permitidos local, no una carga, una operación de Git ni un cambio de código fuente. --repo-id es un identificador estable utilizado en las solicitudes MCP; --root es el único directorio canónico del repositorio que el servidor puede leer.

Set-Location D:\AI\token-context-mcp
uv run token-context register --repo-id video-lecturer --root D:\AI\video_lecturer
uv run token-context index --repo-id video-lecturer
uv run token-context status --repo-id video-lecturer

Use una raíz de proyecto específica, nunca un directorio padre amplio como D:\AI. Vuelva a ejecutar index después de los cambios relevantes; reutiliza los resultados de análisis sin cambios. Los registros y las bases de datos de índice existentes se comparten entre todos los procesos MCP iniciados bajo el mismo usuario de Windows.

Para usar una ubicación de registro diferente en una terminal o en un despliegue portátil, defínala antes de registrar, indexar e iniciar el servidor MCP:

$env:TOKEN_CONTEXT_CONFIG = 'D:\trusted-shared-config\repos.toml'
uv run token-context register --repo-id myrepo --root D:\projects\myrepo
uv run token-context index --repo-id myrepo

Uso desde agentes de programación

Este es un servidor MCP stdio local. Funciona con un cliente que pueda iniciar procesos locales y tenga uv disponible en su PATH. Cada proceso de cliente iniciado bajo el mismo usuario de Windows lee automáticamente el mismo registro global de repositorios. Reinicie el cliente después de cambiar el registro o su política.

Cliente

Soporte de stdio local

Estado de configuración

Codex CLI / IDE

Sí

Instalado y probado de extremo a extremo en esta máquina.

Claude Code

Sí

Compatible; añádalo en el ámbito de usuario o de proyecto.

GitHub Copilot CLI

Sí

Compatible mediante la configuración de usuario de la CLI o la configuración del proyecto.

GitHub Copilot Chat en VS Code

Sí

Compatible mediante .vscode/mcp.json o la interfaz de MCP.

Google Antigravity IDE / CLI

Sí

Compatible mediante mcp_config.json global o del espacio de trabajo.

Claude Desktop

Condicional

Admite MCP local mediante Desktop Extensions, pero este proyecto aún no publica un paquete .dxt.

Los agentes de nube/web no pueden iniciar este servidor en esta máquina Windows. Necesitan un servicio MCP HTTP autenticado desplegado por separado; este proyecto incluye intencionalmente solo transporte stdio local.

Codex

Hay dos formas de conectar Codex a token-context-mcp:

Método A: Mediante la CLI de Codex

codex mcp add token-context -- uv run --directory D:\AI\token-context-mcp token-context serve --transport stdio
codex mcp get token-context

Método B: Archivo de configuración directo (~/.codex/config.toml)

Si el comando codex no está disponible en su PATH de PowerShell, añada directamente el servidor a %USERPROFILE%\.codex\config.toml:

[mcp_servers.token-context]
command = "uv"
args = ["run", "--directory", "D:\\AI\\token-context-mcp", "token-context", "serve", "--transport", "stdio"]

Consejo para GUI: Si Codex no puede encontrar uv, sustituya "uv" por la ruta absoluta: "C:\\Users\\<YourUser>\\AppData\\Roaming\\Python\\Python312\\Scripts\\uv.exe".


Claude (Claude Code y Claude Desktop)

1. Claude Code (CLI)

claude mcp add --transport stdio --scope user token-context -- uv run --directory D:\AI\token-context-mcp token-context serve --transport stdio
claude mcp get token-context

2. Claude Desktop (aplicación de Windows)

Abra o cree %APPDATA%\Claude\claude_desktop_config.json (p. ej., C:\Users\<YourUser>\AppData\Roaming\Claude\claude_desktop_config.json) y añada:

{
  "mcpServers": {
    "token-context": {
      "command": "uv",
      "args": [
        "run",
        "--directory",
        "D:\\AI\\token-context-mcp",
        "token-context",
        "serve",
        "--transport",
        "stdio"
      ]
    }
  }
}

Registro y uso de task2-demo

1. Registrar e indexar el repositorio

Ejecute estos comandos en PowerShell (registra globalmente en %APPDATA%\token-context-mcp\repos.toml):

# Register repository
uv run --directory D:\AI\token-context-mcp token-context register --repo-id task2-demo --root D:\AI\video_lecturer\task\task2_demo

# Build index
uv run --directory D:\AI\token-context-mcp token-context index --repo-id task2-demo

# Check status
uv run --directory D:\AI\token-context-mcp token-context status --repo-id task2-demo

2. Ejemplo de prompt para Codex / Claude / Antigravity

Después de reiniciar Codex, Claude o Antigravity, envíe este prompt en el chat:

Use token-context for repo_id "task2-demo".
Start with get_repo_map at 512 tokens to inspect the project structure,
then use get_file_skeleton for "src/lecturer_demo/cli.py".

Si un cliente no puede iniciar el servidor, ejecute primero uv run --directory D:\AI\token-context-mcp token-context serve --transport stdio en PowerShell para comprobar su entorno de Python. Los clientes GUI a veces no heredan el PATH de una terminal; en ese caso, establezca command en la ruta absoluta de uv.exe y reinicie el cliente.

Referencias oficiales de configuración de clientes: OpenAI Codex, Claude Code, GitHub Copilot CLI, GitHub Copilot en IDE, Antigravity y Claude Desktop.

Límites de tokens y recursos

El registro global tiene una política [server] exigible. Edite el TOML y reinicie Codex para aplicar un cambio:

[server]
max_request_bytes = 65536
max_result_tokens = 2048
max_graph_nodes = 75
max_symbol_results = 15
network_policy = "declared-deny-not-enforced"
  • max_result_tokens limita la salida de mapas, esqueletos y contexto de símbolos. Es el control principal para el consumo de contexto del modelo.

  • max_graph_nodes limita el recorrido de los segmentos de impacto.

  • max_symbol_results limita los resultados de búsqueda.

  • max_request_bytes rechaza las entradas MCP sobredimensionadas.

Los valores más bajos reducen los tokens, pero provocan más truncamientos y llamadas de seguimiento. El servidor solo limita el contexto que devuelve; no puede imponer un límite de facturación estricto del proveedor para una sesión completa de Codex/modelo.

Comandos

  • register: añade una raíz de repositorio canónica y sin enlaces a un registro TOML local.

  • index: construye una instantánea SQLite atómica y un manifiesto JSON.

  • status: inspecciona la instantánea almacenada y detecta archivos modificados después de la indexación.

  • serve: inicia el servidor MCP stdio.

  • benchmark-report: calcula estadísticas resumidas a partir de un registro de ejecución JSONL instrumentado.

  • release-materials: genera un artefacto inicial de SBOM/procedencia; la firma y la evidencia de sandbox del sistema operativo siguen siendo responsabilidades del despliegue.

Contrato de herramientas

  • get_repo_map

  • find_symbols

  • get_file_skeleton

  • get_symbol_context

  • get_impact_slice

  • get_index_status

Cada resultado es un envoltorio JSON con index_run_id, freshness, budget, warnings y evidencia de fuente. Una arista léxica se marca explícitamente como ambiguous; una arista no resuelta no es prueba de que no exista ninguna relación.

Desarrollo

uv run pytest
uv run token-context release-materials --output supply-chain

Consulte SECURITY.md y docs/ para conocer el modelo de amenazas, las instrucciones de integración y el protocolo de evaluación comparativa.

Available Tools

10 tools
find_symbolsFind symbolsC

Find source-backed symbols by name or qualified-name pattern. Returns IDs and spans, never arbitrary files.

NameRequiredDescriptionDefault
kindNo
limitNo
patternYes
profileNo
repo_idYes
max_tokensNo

TDQS

C2.9/5.0
Behavior3/5

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

With no annotations, the description carries the full burden, but it does add real behavioral context: results are "source-backed" and return "IDs and spans, never arbitrary files," which tells the agent the result shape and constraints. It omits read-only nature, pagination, and any failure/empty-result behavior for a 6-param tool.

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

Conciseness4/5

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

Two tight sentences, front-loaded with the core action and followed by the return-value constraint. No wasted words, though the extreme brevity is part of why parameter detail is missing.

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

Completeness2/5

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

For a 6-parameter tool with no annotations, no output schema, and 0% schema description coverage, the definition is under-specified. It states return contents but leaves parameter meaning and usage boundaries to inference.

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

Parameters2/5

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 — but it only hints at the pattern parameter. kind, profile, limit, max_tokens, and repo_id are undocumented anywhere, leaving half the parameter surface opaque (e.g., what kind values are valid, what profile selects).

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

Purpose4/5

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

"Find source-backed symbols by name or qualified-name pattern" gives a specific verb (find) and resource (symbols) plus the lookup key. It clearly distinguishes a symbol search from file-level siblings like search_source, though it never names an alternative explicitly.

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?

The description implies when the tool is useful (name/qualified-name lookup) but offers no explicit when-to-use, when-not-to-use, or routing guidance among the many symbol-related siblings (inspect_symbol, get_symbol_context, search_source). An agent must infer the boundary itself.

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

get_file_skeletonFile skeletonC

Imports and source-backed headers from one file. Function bodies elided by default.

NameRequiredDescriptionDefault
pathYes
profileNo
repo_idYes
max_tokensNo
include_privateNo

TDQS

C2.9/5.0
Behavior3/5

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

With no annotations, the description carries the full burden. It usefully discloses that function bodies are elided by default, which is a meaningful behavioral trait, but says nothing about permissions, whether the operation is read-only, truncation behavior from max_tokens, or what the profile parameter alters.

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

Conciseness4/5

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

Two short sentences with no filler, and the core output (imports and headers) is front-loaded. The phrasing 'Imports and source-backed headers' is slightly awkward but compact.

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

Completeness2/5

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

For a 5-parameter tool with no annotations, no output schema, and 0% schema description coverage, this description is far too thin. It omits parameter meanings, privacy behavior, truncation behavior, and any sense of output shape beyond the elision default.

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

Parameters2/5

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

Schema description coverage is 0% across 5 parameters, so the description must compensate but largely does not. 'One file' weakly implies path/repo_id, and 'by default' weakly hints at profile or include_private configurability, but max_tokens, include_private, and the profile semantics remain entirely undocumented.

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

Purpose4/5

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

The description states the specific resource (one file) and what is returned (imports and source-backed headers), and distinguishes the resource from siblings like search_source or inspect_symbol by naming the skeleton concept. It is clear but does not explicitly differentiate itself from the sibling set.

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 such as inspect_symbol, get_symbol_context, or search_source. The agent must infer that a file skeleton is preferred over symbol-level or source-text tools, which is not stated.

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

get_impact_sliceImpact candidate sliceC

Traverse observed caller/callee edges from a symbol. Candidate impact slice, not complete blast radius.

NameRequiredDescriptionDefault
depthNo
profileNo
repo_idYes
directionNoboth
max_nodesNo
symbol_idYes
max_tokensNo
min_confidenceNo
filter_ambiguousNo

TDQS

C2.7/5.0
Behavior2/5

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

With no annotations, the description carries full behavioral burden. It usefully discloses that edges are 'observed' and the result is a 'candidate impact slice, not complete blast radius,' but omits permissions, return behavior, and limits for its 9 parameters.

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

Conciseness5/5

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

Two short, front-loaded sentences with no wasted words. The scope caveat is placed immediately after the core action, making the description easy to scan.

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

Completeness2/5

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

For a tool with 9 parameters, no output schema, and no annotations, the description is too thin. It gives the core purpose and a scope caveat but leaves parameter behavior and invocation guidance almost entirely undocumented.

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% for 9 parameters, and the description adds no meaning beyond 'from a symbol' and 'caller/callee edges.' It does not explain depth, profile, max_nodes, max_tokens, min_confidence, or filter_ambiguous.

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

Purpose4/5

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

States a specific action: traverse observed caller/callee edges from a symbol. The added caveat 'Candidate impact slice, not complete blast radius' clarifies scope, though it does not name sibling alternatives like get_module_dependents.

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?

No explicit when-to-use guidance or alternatives are provided. The caveat 'not complete blast radius' hints at a limitation but does not route the agent to another tool or condition.

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

get_index_statusIndex statusB

Active snapshot metadata and paths changed since indexing. Run before relying on graph results.

NameRequiredDescriptionDefault
repo_idYes

TDQS

B3.1/5.0
Behavior3/5

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

With no annotations, the description carries the full burden. It discloses the timing guidance and that it reports index freshness/changed paths, but it does not explicitly state read-only safety, side effects, permissions, or freshness semantics, leaving behavioral traits partly implicit.

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

Conciseness4/5

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

Two short sentences with no filler and usage guidance front-loaded after the return summary. The first sentence is a fragment, but the description avoids bloat.

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

Completeness2/5

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

Given no annotations, no output schema, and no parameter descriptions, the description is under-informative: it covers return content at a high level but omits repo_id semantics and safety/profile details. It is not complete enough for an agent to call without additional assumptions.

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

Parameters2/5

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

Schema coverage is 0%, so the description must define repo_id, but it never mentions the parameter. The single required parameter's meaning, format, and scope are left to inference from its name alone.

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

Purpose3/5

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

The description supplies the data returned (active snapshot metadata, changed paths since indexing) but never uses a clear verb and does not differentiate this status check from the graph-query siblings. An agent can infer it is a read, but the purpose is not stated as explicitly as a 'returns X' statement would be.

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

Usage Guidelines4/5

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

It gives a clear trigger: run before relying on graph results. No when-not condition or alternative tool is named, so it stops short of a 5.

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

get_module_dependentsModule dependentsC

Lexical import relationships for indexed path or module. Dynamic imports flagged. Not semantic resolution.

NameRequiredDescriptionDefault
pathNo
moduleNo
profileNo
repo_idYes
max_tokensNo

TDQS

C2.9/5.0
Behavior3/5

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

With no annotations, the description carries the full burden and does disclose meaningful caveats: results are lexical rather than semantic, and dynamic imports are flagged separately. However, it never clarifies directionality (do dependents mean files that import this module, or its imports?), nor result format, limits, or indexing requirements.

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

Conciseness4/5

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

Three short fragments, front-loaded with the core purpose and the caveat, with no filler. It is telegraphic to the point of strain but every clause carries information.

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

Completeness2/5

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

For a 5-parameter tool with no schema descriptions, no annotations, and no output schema, the description leaves too much unaddressed: required repo_id, profile, max_tokens, and the direction of the relationship. An agent could not invoke this reliably without guessing.

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

Parameters2/5

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

Schema description coverage is 0% across 5 parameters and the description only addresses two of them (path, module). repo_id is required yet unexplained, and profile and max_tokens are never mentioned, so the description does not compensate for the schema gap.

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

Purpose4/5

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

States a specific resource (lexical import relationships) and scopes it to an indexed path or module, which is enough to tell it apart from siblings like get_repo_map or find_symbols. The verb is implicit ('get' in the name), but the returned concept is clearly identified.

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 when-to-use guidance, no prerequisites, and no reference to sibling alternatives such as get_impact_slice or get_symbol_context. The phrase 'for indexed path or module' hints at applicability but does not guide tool selection.

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

get_repo_mapRepository mapB

Ranked definitions for a repo_id within budget. Compact entries are [id, path:line, kind/name]; format='full' adds signatures and evidence. For orientation, not proof of full coverage.

NameRequiredDescriptionDefault
queryNo
formatNo
profileNo
repo_idYes
budget_tokensNo
include_testsNo
include_omitted_idsNo

TDQS

B3.2/5.0
Behavior3/5

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

No annotations exist, so the description carries the full burden. It usefully discloses the entry format, the budget constraint ('within budget'), and a coverage caveat, but says nothing about auth, performance, or how budget truncation interacts with include_omitted_ids.

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

Conciseness5/5

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

Three dense sentences, front-loaded with the core purpose and output contract, with the caveat last. No filler.

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

Completeness2/5

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

For a 7-parameter tool with no annotations and no output schema, leaving four parameters unexplained and omitting any routing guidance to the many sibling discovery tools is a substantial gap, even though the format and coverage caveat are handled well.

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

Parameters2/5

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

Schema coverage is 0% with 7 parameters. Only format='full' vs compact is explained and budget_tokens is hinted at via 'within budget'. query, profile, include_tests, and include_omitted_ids are entirely undocumented in both schema and description.

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

Purpose4/5

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

States a concrete verb+resource ('Ranked definitions for a repo_id') and the two output shapes, which distinguishes it from siblings like get_file_skeleton and get_symbol_context. It does not explicitly name the sibling it complements, so it stops 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.

Usage Guidelines3/5

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

'For orientation, not proof of full coverage' implies when the tool is appropriate, but there is no explicit when-to-use versus alternatives such as get_file_skeleton or inspect_symbol. Usage is suggested rather than stated.

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

get_symbol_contextSymbol contextC

Bounded source packet for indexed symbol and observed edges. Check freshness and ambiguity warnings. A body larger than max_tokens is read in windows with body_offset_line.

NameRequiredDescriptionDefault
depthNo
profileNo
repo_idYes
symbol_idYes
max_tokensNo
include_bodyNo
body_offset_lineNo
include_omitted_idsNo

TDQS

C2.9/5.0
Behavior3/5

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

With no annotations, the description carries the full behavioral burden. It usefully discloses that the result is bounded and that large bodies are read in windows via max_tokens and body_offset_line, but it omits permissions, error behavior, and freshness/ambiguity warning semantics.

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

Conciseness4/5

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

The description is short and front-loads the core purpose, then adds two relevant behavioral notes. It avoids repetition, though the wording is terse enough that some important details feel compressed rather than clarified.

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

Completeness2/5

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 annotations, no output schema, and 0% schema description coverage, the description is materially incomplete. It covers the surface purpose and windowing behavior but leaves most parameters, return structure, and alternative-tool selection unexplained.

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

Parameters2/5

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

Schema description coverage is 0% and there are 8 parameters, so the description must compensate. It explains only max_tokens and body_offset_line indirectly; depth, profile, include_body, include_omitted_ids, repo_id, and symbol_id remain undocumented beyond their titles.

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

Purpose4/5

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

The description identifies a specific resource: a bounded source packet for an indexed symbol plus observed edges. It communicates what the tool returns, but it does not distinguish the tool from siblings such as inspect_symbol or get_file_skeleton, so an agent must infer the boundary.

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?

It gives output-related advice ('Check freshness and ambiguity warnings') but does not state when to choose this tool over alternatives like inspect_symbol or find_symbols. No prerequisites, exclusions, or selection criteria are provided.

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

inspect_symbolInspect symbol (composite)C

Resolve a symbol and its immediate graph in one call. view='full' returns a context packet: body, callee/caller signatures, related tests. Use before editing a symbol.

NameRequiredDescriptionDefault
viewNonormal
queryYes
repo_idYes
budget_tokensNo

TDQS

C2.9/5.0
Behavior2/5

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

No annotations are provided, so the description carries the full burden. It doesn't state whether this is read-only, whether there are rate limits or caching behavior, what 'immediate graph' means in practice, or how the view modes affect behavior. The token budget implication is only hinted at.

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

Conciseness4/5

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

Three tight sentences, front-loaded with purpose. No wasted words, though the 'view=full' detail would be better placed after establishing the baseline behavior.

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

Completeness2/5

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

For a 4-param composite tool with no annotations and no output schema, the description is thin. It doesn't explain the return packet shape beyond a partial list, doesn't document the budget_tokens interaction, and leaves view semantics mostly opaque.

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

Parameters2/5

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

Schema coverage is 0%, so the description must compensate for undocumented params. It mentions view='full' but doesn't explain what 'minimal' or 'normal' return, doesn't clarify the required 'query' semantics (symbol name? pattern?), and never mentions repo_id or budget_tokens.

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

Purpose4/5

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

States a specific verb+resource: 'Resolve a symbol and its immediate graph in one call.' Clear on what the tool does, though it doesn't distinguish itself from sibling get_symbol_context, which likely overlaps significantly.

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

Usage Guidelines3/5

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

Says 'Use before editing a symbol,' which implies a workflow context. But it gives no explicit when-not-to-use guidance and doesn't differentiate from close siblings like get_symbol_context or find_symbols.

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

list_repositoriesRegistered repositoriesA

List registered repository IDs. Call this first; roots are never exposed.

NameRequiredDescriptionDefault

No parameters

TDQS

A3.9/5.0
Behavior3/5

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

No annotations are provided, so the description carries the burden. It adds one useful behavioral fact ('roots are never exposed'), which tells the agent something about result scoping. However it omits return volume, ordering, and whether an index must exist, leaving the safety/behavioral profile thin for a tool with zero annotation coverage.

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

Conciseness5/5

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

Two short sentences, purpose front-loaded, followed by the usage cue and the scoping note. Every clause earns its place with no filler.

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

Completeness4/5

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

A zero-param read tool with no output schema is largely self-describing; the description names what is returned (IDs) and a scope caveat. It could have mentioned whether an index must be built first, but nothing essential to invoking it is missing.

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 takes zero parameters, so per the rubric the baseline is 4. There is nothing for the description to clarify beyond confirming it is a no-argument listing call.

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

Purpose4/5

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

States a specific verb+resource ('List registered repository IDs') and even specifies the return granularity (IDs, not full repo objects). It doesn't explicitly differentiate from siblings like get_repo_map or get_index_status, but the resource is distinct enough that confusion is unlikely.

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

Usage Guidelines4/5

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

'Call this first' gives a clear ordering cue for the workflow, which is meaningful for a discovery tool. It does not name an alternative or a when-not condition, so it falls short of a full 5.

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

search_sourceSearch sourceB

Full-text search ranked by enclosing symbol. expand='graph' (default for profile 'locate') adds resolved callers/callees as neighbors. Call before reading files.

NameRequiredDescriptionDefault
limitNo
queryYes
expandNoauto
profileNo
repo_idYes
expand_kNo
max_tokensNo
expand_hopsNo
min_confidenceNo

TDQS

B3.1/5.0
Behavior3/5

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

With no annotations, the description carries the full burden, and it does disclose two real behaviors: symbol-based ranking and graph expansion that adds resolved callers/callees as neighbors. It says nothing about permissions, cost/latency, ranking fallback, or what happens with the non-enum parameters, so transparency is partial.

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

Conciseness4/5

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

Three short sentences, front-loaded with the core purpose, then the expand behavior, then a usage cue. No padding, though the parameter detail sentence is dense and cryptic without surrounding context.

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

Completeness2/5

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

A 9-parameter tool with no annotations, no output schema, and 0% schema description coverage needs considerably more from the description. It explains only one parameter interaction and omits the meaning, defaults, and effects of most arguments, leaving an agent under-equipped to invoke it correctly.

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

Parameters2/5

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

Schema description coverage is 0% and there are 9 parameters, so the description must compensate. It only clarifies expand='graph' and its interaction with profile 'locate', leaving limit, max_tokens, expand_k, expand_hops, and min_confidence completely undocumented in both schema and description.

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

Purpose4/5

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

States a specific verb+resource ("Full-text search") and adds a distinguishing behavioral detail: results are ranked by enclosing symbol. It does not, however, differentiate itself from siblings like find_symbols or inspect_symbol, so an agent cannot tell from the text alone which search tool to pick.

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

Usage Guidelines3/5

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

"Call before reading files" gives an implied usage context, suggesting this is a discovery/entry-point tool. But there is no when-not guidance and no explicit routing to alternatives such as find_symbols for symbol lookups, so the guidance stays at implication level.

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.

  1. 1 tool updatev0.3.3
    • Changedget_symbol_context1 field changed
      • addedInput schema / properties / body_offset_line
        Added value: +{
        +  "anyOf": [
        +    {
        +      "type": "integer"
        +    },
        +    {
        +      "type": "null"
        +    }
        +  ],
        +  "default": null,
        +  "title": "Body Offset Line"
        +}
  2. 3 tool updatesv0.2.0
    • Changedget_impact_slice2 fields changed
      • addedInput schema / properties / filter_ambiguous
        Added value: +{
        +  "default": true,
        +  "title": "Filter Ambiguous",
        +  "type": "boolean"
        +}
      • addedInput schema / properties / min_confidence
        Added value: +{
        +  "anyOf": [
        +    {
        +      "type": "number"
        +    },
        +    {
        +      "type": "null"
        +    }
        +  ],
        +  "default": null,
        +  "title": "Min Confidence"
        +}
    • Addedinspect_symbol
    • Changedsearch_source4 fields changed
      • addedInput schema / properties / expand
        Added value: +{
        +  "default": "auto",
        +  "enum": [
        +    "auto",
        +    "none",
        +    "graph"
        +  ],
        +  "title": "Expand",
        +  "type": "string"
        +}
      • addedInput schema / properties / expand_hops
        Added value: +{
        +  "default": 1,
        +  "title": "Expand Hops",
        +  "type": "integer"
        +}
      • addedInput schema / properties / expand_k
        Added value: +{
        +  "default": 3,
        +  "title": "Expand K",
        +  "type": "integer"
        +}
      • addedInput schema / properties / min_confidence
        Added value: +{
        +  "default": 0.6,
        +  "title": "Min Confidence",
        +  "type": "number"
        +}
  3. 9 tool updatesv0.1.0
    • First observedfind_symbols
    • First observedget_file_skeleton
    • First observedget_impact_slice
    • First observedget_index_status
    • First observedget_module_dependents
    • First observedget_repo_map
    • First observedget_symbol_context
    • First observedlist_repositories
    • First observedsearch_source

TDQS

B3.3/5.0

Scored across 10 tools

Disambiguation3/5

Most tools target distinct phases (list repos, index status, search, orient, read context, traverse graph), but boundaries blur in places: get_symbol_context and inspect_symbol both return source packets plus edges for a symbol, and get_impact_slice, get_module_dependents, and search_source(expand='graph') all traverse relationships. Descriptions attempt to differentiate via 'one call', 'lexical vs semantic', and 'candidate vs complete', but an agent could still misselect among them.

Naming Consistency5/5

Every tool follows a consistent verb_noun snake_case pattern (get_*, find_*, list_*, search_*, inspect_*). Prefixes map cleanly to intent: get for retrieval, find/list/search for discovery. No mixed conventions.

Tool Count5/5

Ten tools is well-scoped for a code-context/index server. Each tool earns its place across discovery, search, orientation, symbol reading, and graph traversal, with no redundant filler.

Completeness4/5

Coverage spans repository listing, index freshness, symbol search, orientation maps, file skeletons, bounded source context, and impact traversal — a solid read-only surface with no obvious dead ends. Minor gaps like direct line-range/file-read or cross-repo comparison are workable around via existing tools.

Maintenance

ActivityActive
ResponsivenessNo issues

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