get_recent_failures

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

No annotations are provided, so the description carries the full behavioral burden. It implies read-only retrieval with recency ordering and a performance trait ('faster results' with spec_file), but discloses nothing about pagination, result caps, permissions, or return format. Given the higher bar with zero annotation coverage, this is only partially met.

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?

Three short sentences with the core purpose front-loaded and zero filler. The performance tip is placed last, where it reads as a secondary detail.

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 low-risk, fully-schema-documented, all-optional read tool this covers the essentials: what it returns and how to speed it up. The lack of an output schema and any sibling differentiation keeps it from being fully complete.

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 the schema already documents all four parameters and the baseline is 3. The description only adds meaning for spec_file ('for faster results'), a performance rationale not present in the schema, while hours/limit/project_id semantics rest entirely on 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?

States a specific verb and resource ('Get the most recent test failures') and scopes it with 'most recent' and 'quick triage', which separates it somewhat from history/trend siblings. However, it never names or differentiates from near-neighbors like get_consecutive_failures or get_failure_patterns, leaving the agent to guess which failure-listing tool fits.

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?

'Useful for seeing what's currently broken' implies a usage context and the spec_file tip implies a performance scenario, but there is no explicit when-to-use-vs-alternatives guidance among the nine sibling tools. No exclusions or prerequisites are stated.

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