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mesa-clm

by idss-mesa
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Python
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ds_get_policy_config

Retrieve the configuration for a named Policy Composition Framework policy. Returns a stub with config=None and a note that iRODS does not expose PCF config through PRC.

Instructions

Return the configuration of a named Policy Composition Framework policy. iRODS does not expose PCF config through PRC; this is a stub that returns config=None and a note documenting the limitation.

Tool call template

Replace each placeholder with a value matching the input schema. Only required parameters are included; add optional parameters as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {
      "name": "<name>"
    },
    "name": "ds_get_policy_config"
  }
}

Input Schema

NameRequiredDescriptionDefault
nameYesName of the PCF policy to introspect.

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.1.0

TDQS

A3.8/5.0
Behavior4/5

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

With no annotations, the description carries the full behavioral burden, and it does so well for the critical trait: it discloses that iRODS does not expose PCF config through PRC and that this is a stub returning config=None plus a note. It omits auth/permission or failure-mode details, but the stub disclosure is the key fact.

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 sentences, zero waste, front-loaded with the purpose and immediately followed by the limitation. Nothing to trim.

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?

There is no output schema, but the description compensates by describing the return shape (config=None and a note). Combined with the fully documented single parameter, an agent has everything needed to call and interpret 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 description coverage is 100% and the single parameter is documented as 'Name of the PCF policy to introspect.' The description's 'named ... policy' phrasing adds nothing beyond the schema, so the baseline 3 applies.

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 and resource: 'Return the configuration of a named Policy Composition Framework policy.' An agent can tell this is a config-introspection tool rather than a policy lister. It does not explicitly name ds_list_policies as the related sibling, so it falls short of a 5.

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

Usage Guidelines3/5

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

Usage is implied by the name and by the note that this is a stub, which signals the agent should not expect real config data. However, no explicit when-to-use guidance or named alternative (e.g., ds_list_policies) is given.

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

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