send_digest_now

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

No annotations provided; description carries full burden. It states the tool triggers a manual send but does not disclose behavioral traits such as whether it requires prior configuration (e.g., Slack/Teams webhooks), mutation side effects, or error handling. Minimal behavioral info beyond the trigger action itself.

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?

Extremely concise: two sentences plus two examples. Every sentence adds unique info. The main action is front-loaded. No wasted words.

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 trigger tool with no parameters and no output schema, the description covers the core purpose, timing context (automatic vs manual), and target channels. Minor gap: does not mention prerequisites like whether Slack/Teams must be configured beforehand, but this is less critical for a trigger tool.

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?

Tool has zero parameters; schema coverage is 100% by default. Baseline for 0 params is 4. Description adds value by explaining what the tool does and providing context (e.g., automatic schedule), but there is no parameter information to add since none exist.

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?

Clearly states the action ('Manually trigger a cost digest'), resource ('cost digest'), and destinations ('Slack and/or Teams'). Distinguishes from siblings like 'send_report_now' and 'send_weekly_digest_now' by specifying the content type and manual trigger. Examples reinforce purpose.

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?

Explicitly notes the automatic schedule ('normally sends automatically at 09:00 UTC daily') implying use when immediate manual trigger is desired. Examples provide clear use cases. However, does not explicitly mention when not to use or contrast with siblings like 'send_report_now' (might send a different report) or 'send_weekly_digest_now'.

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