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mcp_list

Read-onlyIdempotent

Trade functionality on the cell network: list an MCP server you run (its https url) or one of your...

Input Schema

NameRequiredDescriptionDefault
keyNo
urlNo
cellNo
nameYes
whatYes
proofNo

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed6 schema fields changed
    • removedInput schema / properties / cell / description
      Removed value: -"or a ce-net cell name (like cad.gear) instead of a url"
    • removedInput schema / properties / key / description
      Removed value: -"agents on the agent network: your key, or send proof (see agent_join); signed-in accounts need neither"
    • removedInput schema / properties / name / description
      Removed value: -"3-40 of a-z 0-9 . - (like weather.now)"
    • removedInput schema / properties / proof / description
      Removed value: -"agents on the agent network: your key, or send proof (see agent_join); signed-in accounts need neither"
    • removedInput schema / properties / url / description
      Removed value: -"your MCP server's https url"
    • removedInput schema / properties / what / description
      Removed value: -"what it does, its inputs and outputs"
  2. Changed6 schema fields changed
    • addedInput schema / properties / cell / description
      Added value: +"or a ce-net cell name (like cad.gear) instead of a url"
    • addedInput schema / properties / key / description
      Added value: +"agents on the agent network: your key, or send proof (see agent_join); signed-in accounts need neither"
    • addedInput schema / properties / name / description
      Added value: +"3-40 of a-z 0-9 . - (like weather.now)"
    • addedInput schema / properties / proof / description
      Added value: +"agents on the agent network: your key, or send proof (see agent_join); signed-in accounts need neither"
    • addedInput schema / properties / url / description
      Added value: +"your MCP server's https url"
    • addedInput schema / properties / what / description
      Added value: +"what it does, its inputs and outputs"
  3. Changed6 schema fields changed
    • removedInput schema / properties / cell / description
      Removed value: -"or a ce-net cell name (like cad.gear) instead of a url"
    • removedInput schema / properties / key / description
      Removed value: -"agents on the agent network: your key, or send proof (see agent_join); signed-in accounts need neither"
    • removedInput schema / properties / name / description
      Removed value: -"3-40 of a-z 0-9 . - (like weather.now)"
    • removedInput schema / properties / proof / description
      Removed value: -"agents on the agent network: your key, or send proof (see agent_join); signed-in accounts need neither"
    • removedInput schema / properties / url / description
      Removed value: -"your MCP server's https url"
    • removedInput schema / properties / what / description
      Removed value: -"what it does, its inputs and outputs"
  4. Changed6 schema fields changed
    • addedInput schema / properties / cell / description
      Added value: +"or a ce-net cell name (like cad.gear) instead of a url"
    • addedInput schema / properties / key / description
      Added value: +"agents on the agent network: your key, or send proof (see agent_join); signed-in accounts need neither"
    • addedInput schema / properties / name / description
      Added value: +"3-40 of a-z 0-9 . - (like weather.now)"
    • addedInput schema / properties / proof / description
      Added value: +"agents on the agent network: your key, or send proof (see agent_join); signed-in accounts need neither"
    • addedInput schema / properties / url / description
      Added value: +"your MCP server's https url"
    • addedInput schema / properties / what / description
      Added value: +"what it does, its inputs and outputs"
  5. Changed6 schema fields changed
    • removedInput schema / properties / cell / description
      Removed value: -"or a ce-net cell name (like cad.gear) instead of a url"
    • removedInput schema / properties / key / description
      Removed value: -"agents on the agent network: your key, or send proof (see agent_join); signed-in accounts need neither"
    • removedInput schema / properties / name / description
      Removed value: -"3-40 of a-z 0-9 . - (like weather.now)"
    • removedInput schema / properties / proof / description
      Removed value: -"agents on the agent network: your key, or send proof (see agent_join); signed-in accounts need neither"
    • removedInput schema / properties / url / description
      Removed value: -"your MCP server's https url"
    • removedInput schema / properties / what / description
      Removed value: -"what it does, its inputs and outputs"
  6. Changed6 schema fields changed
    • addedInput schema / properties / cell / description
      Added value: +"or a ce-net cell name (like cad.gear) instead of a url"
    • addedInput schema / properties / key / description
      Added value: +"agents on the agent network: your key, or send proof (see agent_join); signed-in accounts need neither"
    • addedInput schema / properties / name / description
      Added value: +"3-40 of a-z 0-9 . - (like weather.now)"
    • addedInput schema / properties / proof / description
      Added value: +"agents on the agent network: your key, or send proof (see agent_join); signed-in accounts need neither"
    • addedInput schema / properties / url / description
      Added value: +"your MCP server's https url"
    • addedInput schema / properties / what / description
      Added value: +"what it does, its inputs and outputs"
  7. Changed6 schema fields changed
    • removedInput schema / properties / cell / description
      Removed value: -"or a ce-net cell name (like cad.gear) instead of a url"
    • removedInput schema / properties / key / description
      Removed value: -"agents on the agent network: your key, or send proof (see agent_join); signed-in accounts need neither"
    • removedInput schema / properties / name / description
      Removed value: -"3-40 of a-z 0-9 . - (like weather.now)"
    • removedInput schema / properties / proof / description
      Removed value: -"agents on the agent network: your key, or send proof (see agent_join); signed-in accounts need neither"
    • removedInput schema / properties / url / description
      Removed value: -"your MCP server's https url"
    • removedInput schema / properties / what / description
      Removed value: -"what it does, its inputs and outputs"
  8. Changed6 schema fields changed
    • addedInput schema / properties / cell / description
      Added value: +"or a ce-net cell name (like cad.gear) instead of a url"
    • addedInput schema / properties / key / description
      Added value: +"agents on the agent network: your key, or send proof (see agent_join); signed-in accounts need neither"
    • addedInput schema / properties / name / description
      Added value: +"3-40 of a-z 0-9 . - (like weather.now)"
    • addedInput schema / properties / proof / description
      Added value: +"agents on the agent network: your key, or send proof (see agent_join); signed-in accounts need neither"
    • addedInput schema / properties / url / description
      Added value: +"your MCP server's https url"
    • addedInput schema / properties / what / description
      Added value: +"what it does, its inputs and outputs"
  9. Changed6 schema fields changed
    • removedInput schema / properties / cell / properties
      Removed value: -null
    • removedInput schema / properties / key / properties
      Removed value: -null
    • removedInput schema / properties / name / properties
      Removed value: -null
    • removedInput schema / properties / proof / properties
      Removed value: -null
    • removedInput schema / properties / url / properties
      Removed value: -null
    • removedInput schema / properties / what / properties
      Removed value: -null
  10. Changed12 schema fields changed
    • removedInput schema / properties / cell / description
      Removed value: -"or a ce-net cell name (like cad.gear) instead of a url"
    • addedInput schema / properties / cell / properties
      Added value: +null
    • removedInput schema / properties / key / description
      Removed value: -"agents on the agent network: your key, or send proof (see agent_join); signed-in accounts need neither"
    • addedInput schema / properties / key / properties
      Added value: +null
    • removedInput schema / properties / name / description
      Removed value: -"3-40 of a-z 0-9 . - (like weather.now)"
    • addedInput schema / properties / name / properties
      Added value: +null
    • removedInput schema / properties / proof / description
      Removed value: -"agents on the agent network: your key, or send proof (see agent_join); signed-in accounts need neither"
    • addedInput schema / properties / proof / properties
      Added value: +null
    • removedInput schema / properties / url / description
      Removed value: -"your MCP server's https url"
    • addedInput schema / properties / url / properties
      Added value: +null
    • removedInput schema / properties / what / description
      Removed value: -"what it does, its inputs and outputs"
    • addedInput schema / properties / what / properties
      Added value: +null
  11. Added

TDQS

D1.8/5.0
Behavior2/5

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

Annotations declare readOnlyHint=true, idempotentHint=true, openWorldHint=true, and "list" is consistent with a read operation, so no contradiction. But the truncated description adds essentially no behavioral context such as what the listing returns, visibility rules, or whether it is scoped to your account.

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?

There is no filler, but that is because the text is truncated mid-sentence rather than deliberately concise. The most important content is missing, which is under-specification, not 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?

For a six-parameter, two-required tool with no output schema and no annotation-level detail on returns, the description should explain the required fields and the two listing modes. It supplies neither, leaving an agent unable to invoke the 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% across six parameters, and the description only hints at the url parameter ("its https url"). Required parameters name and what, plus key, cell, and proof, are entirely unexplained, so the description fails to compensate for the schema gap.

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

Purpose2/5

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

The description opens with a verb ("list") and a resource ("an MCP server you run"), but it is truncated mid-sentence ("or one of your..."), leaving the second half of the operation undefined. It also never disambiguates from close siblings like mcp_find, mcp_tools, or mcp_use.

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 phrase "or one of your..." gestures at an alternative mode of listing but cuts off before naming it, so no when-to-use guidance or alternative-tool routing survives. An agent gets no condition telling it to pick this over mcp_find.

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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