Fcc Ecfs

Ecfs Filing Detail

ecfs_filing_detail

Read-onlyIdempotent

Retrieve one FCC ECFS filing by submission ID with all public proceedings, filers, authors, law firms, status, and official document/attachment URLs.

Example tool call

This call uses example arguments supplied in the tool’s input schema.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {
      "submission_id": "26110045064"
    },
    "name": "ecfs_filing_detail"
  }
}

Input Schema

Name	Required	Description	Default
`_apiKey`	No	Optional api.data.gov key for higher limits; defaults to DEMO_KEY.
`submission_id`	Yes

Output Schema

Name	Required	Description	Default
`documents`	Yes
`source_url`	Yes
`proceedings`	Yes
`submission_id`	Yes

Schema Changelog

Changes observed during successful MCP inspections.

First observedJul 27, 2026

TDQS

A4/5.0

Behavior4/5

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

Annotations already declare readOnlyHint, openWorldHint, idempotentHint, and destructiveHint. The description adds valuable context by listing the specific fields and data returned (e.g., 'official document/attachment URLs'), which supplements the annotations without contradiction.

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, well-structured sentence that front-loads the verb and resource, with no wasted words. It is concise and easily parseable.

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

Completeness5/5

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

An output schema exists (per context), so return values are covered. The description lists the main fields, and the tool's simple one-item retrieval purpose is fully addressed. No gaps are apparent.

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 only 50% (only '_apiKey' has a description). The description does not add any parameter details beyond mentioning 'submission ID'; it lacks explanations of constraints or formats, failing to compensate for the low schema coverage.

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 the verb 'Retrieve' with resource 'one FCC ECFS filing', specifies the key parameter 'submission ID', and lists the included fields (proceedings, filers, authors, etc.). This clearly distinguishes it from sibling tools like 'ecfs_search_filings' and 'ecfs_docket_filings'.

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?

The description implies use when you have a specific submission ID, but it does not explicitly state when not to use this tool or mention alternatives among the sibling tools.

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

All Fcc Ecfs tools Inspect

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