MCP Agent Operations

by martinbechard

Overview Schema Source Related Servers Discussions Admin

Python

Local

skill_read

Resolve and retrieve a skill's full content by catalog name, with optional extension files for complete documentation.

Instructions

Read one precedence-resolved skill and optionally append its extension.

Input Schema

TableJSON Schema

Name	Required	Description	Default
`name`	Yes	Exact catalog name of the required base skill.
`include_extensions`	No	Search for `<name>.extension` through normal catalog precedence and append it when present. Defaults to false.

Output Schema

TableJSON Schema

Name	Required	Description	Default
`name`	Yes
`digest`	Yes
`content`	Yes
`resources`	No
`applied_extensions`	No

Schema Changelog

Changes observed during successful MCP inspections.

Changed4 schema fields changedv0.11.0Aug 12, 2026

addedInput schema / properties / include_extensions

Added value: +{
+  "default": false,
+  "description": "Search for `<name>.extension` through normal catalog\nprecedence and append it when present. Defaults to false.",
+  "type": "boolean"
+}

addedInput schema / properties / name / description

Added value: +"Exact catalog name of the required base skill."

changedOutput schema / description

Previous value: -"Return one model-facing skill document without exposing host filesystem paths."New value: +"Return one model-facing skill document without exposing host filesystem paths.\n\n`digest` identifies the exact returned `content`. When extension lookup is enabled,\n`applied_extensions` names each precedence-resolved extension appended to that content.\nSupporting resources remain owned and addressable by their individual catalog skill."

addedOutput schema / properties / applied_extensions

Added value: +{
+  "items": {
+    "type": "string"
+  },
+  "type": "array"
+}

First observedv0.5.1Aug 5, 2026

TDQS

B3.4/5.0

Behavior3/5

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

With no annotations, the description must carry the full burden of behavioral disclosure. It mentions precedence resolution and optional extension appending, but does not explain the mechanics or potential side effects well.

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?

The description is a single sentence that conveys the essential function and optional behavior without any wasted words.

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 the large sibling toolset and the use of 'precedence-resolved' without elaboration, the description is incomplete for a newcomer to understand when and why to use this tool.

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

Parameters3/5

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

Schema coverage is 100%, so baseline is 3. The description adds 'precedence-resolved' context but does not substantively enrich parameter understanding beyond the schema's own descriptions.

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

Purpose5/5

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 ('one precedence-resolved skill'), with a clear qualifier about appending extensions. It distinguishes this from sibling tools like skill_list and skill_read_resource.

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 guidance is given on when to prefer skill_read over skill_load or skill_read_resource, nor are any exclusions or alternatives mentioned. Usage context is absent.

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