collect_thread

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

With no annotations, the description carries the full burden. It usefully discloses that the tool reaches an external source and reconstructs a tree structure (root, replies, quotes), implying a network fetch and aggregated result. However it says nothing about auth requirements, rate limits, failure behavior, or whether collection is idempotent or creates stored data.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Is the description appropriately sized, front-loaded, and free of redundancy?

A single tight sentence with the core action front-loaded and the scope parenthetical earning its place. No filler.

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

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

The tool is simple (2 params) and an output schema exists, so return values need not be explained. Still, given zero schema coverage and no annotations, the description leaves both parameter meaning and invocation context underspecified for an agent to call it confidently.

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

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

Schema description coverage is 0% and neither parameter is described beyond its title. The description hints at 'external source' (corresponding to source) but never explains valid source values or the expected thread_id format, so it fails to compensate for the coverage gap.

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

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

States a specific verb ('Fetch and reconstruct') and resource ('entire conversation thread tree') with scope detail (root post, replies, quotes) and the external-source qualifier. It is clear on its own, but the description never distinguishes it from the sibling inspect_thread, so an agent must infer the boundary.

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

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

There is no explicit when-to-use guidance and no mention of the near-identical sibling inspect_thread. The 'external source' phrase implies a context but does not say when this collection step should be preferred over inspection or search tools.

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