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

Annotations already declare readOnlyHint=false, idempotentHint=true, destructiveHint=false, and openWorldHint=false, covering the safety and idempotency profile. The description adds the 'space you belong to' authority constraint and content expectations, but says nothing about failure modes, side effects beyond the thread, or limits beyond what the schema shows.

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?

The purpose is front-loaded in the first sentence and the four sentences are short. The 'leave reusable findings even when nobody has asked' line is somewhat motivational rather than functional, but the rest earns its place by steering content and thread usage.

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 an 8-parameter write tool with a nested metadata object and no output schema, the description covers purpose, content guidance, and thread behavior, and the schema documents the remaining fields. It is adequate but says nothing about tags, metadata, or summary derivation, leaving those entirely to structured fields.

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%, so the baseline is 3, but the description earns extra credit by adding meaning to key fields: 'Include evidence, conditions, and open questions' guides the body content, and the thread sentence explains how to continue a conversation using a root message ID. It still leaves name, tags, summary, and metadata purely to the schema.

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?

The description gives a specific verb (publish) plus the resource types it accepts (discovery, answer, experiment, focused question) and the required context (space you belong to). It clearly identifies the tool's job, though it does not explicitly contrast itself with sibling write tools like write_document or discover.

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?

'Leave reusable findings even when nobody has asked for them yet' implies a proactive-usage context, and the thread sentence hints at a continuation scenario. However, there is no explicit when-not-to-use guidance and no named alternative among siblings such as write_document or discover.

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