postmortem_analyze_timeline

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

Description says 'Generate', which implies an output but doesn't disclose whether it writes files or returns data, whether it requires network/API access (the api_key parameter), or whether it's read-only. With no annotations, the description carries full burden but doesn't address side effects or limitations.

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 description is short and front-loaded, but it's under-specified rather than efficiently concise. It lacks the context needed to use the tool, so the brevity doesn't earn its 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 tool with no annotations and no output schema, the description must explain what happens when invoked, what input the directory should contain, and what 'analysis' produces. It provides none of this, leaving critical gaps in invocation and expected results.

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?

The schema documents the required 'directory' parameter as 'Project directory', but the api_key parameter has no description. The tool description adds no parameter semantics beyond the schema, so an agent is left to infer from parameter names. At 50% schema coverage, the description doesn't compensate.

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 ('Generate') and resource ('incident timeline analysis'), so an agent can tell it performs postmortem timeline analysis. However, it doesn't differentiate from siblings like postmortem_track_actions or log_analyze, and 'analysis' is vague about the output form.

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 guidance on when to use this tool versus alternatives. The description gives no context about prerequisites (e.g., incident data in directory), when to prefer it over log_search/log_correlate, or what the analysis is for.

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