stream_project_snapshot_audio_endpoint

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

Annotations cover the safety profile (readOnlyHint=false, destructiveHint=false, idempotentHint=false, openWorldHint=true). The description adds one genuinely useful fact beyond them: the operation consumes ElevenLabs credits, which is critical cost context. It does not say whether credits are spent per call, on failure, or whether output is audio bytes, so the disclosure is partial.

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?

One sentence, but the sentence itself is mangled and ungrammatical ('Stream Studio Project Audio Spends ElevenLabs credits'), which harms readability rather than achieving conciseness. The core verb-resource meaning is buried.

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?

This is a streaming/mutating endpoint with no output schema, three parameters, and no annotations telling the agent what the return shape is. The description provides cost context but omits the pointer to the sibling chapter variant, doesn't explain the options, and doesn't clarify that 'snapshot' is required. Incomplete for the complexity.

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 100%, so each of the three parameters is already documented in the schema. The description adds no parameter detail, so the baseline 3 applies. The credits note does not tell the agent anything about parameters.

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?

Attempts to state a verb and resource ('Stream Studio Project Audio'), but the phrasing is clumsy and omits the snapshot dimension entirely, despite 'snapshot' being in the tool name and a required parameter. An agent cannot distinguish this from the sibling stream_chapter_snapshot_audio. The name is clearer than the description.

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?

No when-to-use guidance, no prerequisites, no alternative named despite the obvious sibling stream_chapter_snapshot_audio and stream_project_snapshot_archive_endpoint. Nothing tells the agent which of the similar streaming endpoints to pick.

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