get_transcript

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 no API key is needed and that both timed segments and concatenated text are returned. It does not, however, cover failure modes (no captions available, unsupported language) or rate-limiting behavior.

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 sentences, with the key promise front-loaded and each clause adding new information (timestamps, dual return format, no auth). 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?

For a simple 2-parameter read-only tool with complete schema coverage, the description covers the main return shape and the auth requirement. It falls slightly short only on error handling and usage context, which are not critical for invoking the tool correctly.

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?

Both parameters are already fully described in the schema, including the default for lang. The tool description adds no additional semantic detail, so it sits at the baseline for high schema coverage.

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 clear verb ('Fetch') and resource ('full transcript/captions of a YouTube video'), and specifies the return payload (segments with timing plus concatenated text). It does not name a sibling, but the phrase 'with timestamps' hints at distinction from get_clean_transcript.

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?

Provides no explicit when-to-use or alternative guidance. The sibling set includes get_clean_transcript, but the description never tells an agent when to choose this over it, nor mentions fallbacks or preconditions.

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