Farm.js Docs

List docs content changes

list_content_changes

Read-only

Synchronize body-free document metadata. Save indexGeneration and pass it as since on the next poll. A reset response means the named snapshot is no longer available.

Tool call template

This tool declares no required parameters. Add optional parameters from the input schema as needed.

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

Input Schema

Name	Required	Description	Default
`since`	No
`locale`	No

Output Schema

Name	Required	Description	Default
`mode`	Yes
`added`	Yes
`since`	Yes
`counts`	Yes
`format`	Yes
`locale`	No
`changed`	Yes
`deleted`	Yes
`audience`	Yes
`documentCount`	Yes
`resetRequired`	Yes
`indexGeneration`	Yes

Schema Changelog

Changes observed during successful MCP inspections.

First observedOct 20, 2026

TDQS

A3.9/5.0

Behavior4/5

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

The readOnlyHint already establishes a safe read operation. The description adds useful behavior beyond annotations: changes are body-free metadata, the since token drives incremental polling, and reset responses indicate an expired snapshot. Permission and rate-limit details are absent but not essential here.

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 sentences, no filler, and the core synchronization purpose is front-loaded. It is terse but efficient; slightly more explicit front-loading of the listing/changes framing would improve it.

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?

An output schema is present, so return values need not be described. The description covers the polling lifecycle and reset condition well for a two-parameter read tool. It still omits locale semantics and sibling-tool routing.

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 0%, so the description must compensate. It explains the critical since parameter as the prior indexGeneration token, but gives no meaning for the locale parameter, leaving one of two parameters 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?

It states a specific operation on a specific resource ('Synchronize body-free document metadata') and implies change tracking through the polling token. It does not explicitly name the listing behavior or differentiate from hydrate_content_changes, which would fetch full content.

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 concrete operational guidance: save indexGeneration and pass it as since on the next poll, and interpret a reset response as an unavailable snapshot. It does not say when to use this versus the sibling hydrate_content_changes or list_docs.

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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