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

Annotations already carry the safety profile (readOnly, idempotent, non-destructive, closed-world), so the description's contribution is the content disclosure: transcript, notes, and mentioned people. That tells the agent what kind of payload to expect, which is valuable given no output schema; it stops short of describing size, pagination, or truncation.

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?

Two short sentences with zero filler, and the payload description is front-loaded ahead of the id-sourcing note. Nothing is redundant with the title.

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?

For a single-parameter read tool with full annotation coverage, this is nearly complete: it says what is fetched, what the response contains, and where the id comes from. The only minor gap is disambiguation from audiograph_open_link, which is not addressed.

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 coverage is 100% and the schema itself already says the id must come from audiograph_list_received. The description repeats that provenance without adding format or validation nuance, so the schema does the real work. Baseline 3 is correct here.

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 and resource ("Read one Audiograph") plus the scope (one sent to the person you're working with) and enumerates what it returns: transcript, notes, mentions. It is clearly distinguishable from the sibling audiograph_list_received, which it names as the id source.

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?

The sentence "recording_id comes from audiograph_list_received" establishes the prerequisite step and implicitly routes the agent to the list tool first. It does not state exclusions (e.g., use audiograph_open_link for share links) even though that sibling exists.

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