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

With zero annotations the description carries the full burden, and it does meaningfully: auth mechanics (Authorization: Bearer, x-api-key, JSON-RPC _meta), the guarantee 'Nothing is published,' and error behavior ('Writer failure is named — never an outline template'). It omits rate limits and any idempotency/retry notes, keeping it short of a 5.

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?

Front-loading is decent ('Writer-short draft (~400 words)'), but several fragments are cryptic rather than economical — 'Same writer door as the web buyer,' 'pasteable dek,' 'never an outline template' — and auth details are buried mid-paragraph. Info density is high but readability and structure are poor, so sentences don't cleanly earn their place.

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 7-parameter tool with no annotations, no output schema, and 14% schema coverage, the description leaves major gaps: three parameters (url, topic, next_step) are never addressed, and there is no explanation of what the draft response contains or its format. Adequate for the auth/safety story, inadequate overall.

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 only 14%, so the description must compensate, and it partially does: it explains who/proof, the proof_mode=no_proof shortcut, and enumerates the piece_kind values. However, url, topic, and next_step are undocumented in both schema and description, leaving over half the parameters unexplained.

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 artifact: a ~400-word 'writer-short draft,' and distinguishes itself from the paid path by noting it needs only a founder-issued developer key with 'no Stripe Writer checkout.' An agent can tell this is the short/free draft generator versus launchfiles_standalone_page_draft_paid, though the jargon ('writer door,' 'cognition path') slightly muddies it.

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?

Gives context for invoking it (send the developer key as Bearer, pass a brief with who and proof), and hints that omitting piece_kind keeps the 'short→cognition social/X path.' But it never explicitly contrasts when to use this over the paid sibling; the differentiation is implied rather than stated, and no exclusions are given.

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