Log Analyzer MCP

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

No annotations are provided, so the description carries full burden. It mentions the verbosity level (0) which indicates behavioral output characteristics, but doesn't disclose other important traits like whether tests run sequentially/parallel, timeouts, error handling, or what 'minimal output' actually contains. For a test execution tool with zero annotation coverage, this is insufficient.

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 a single, efficient sentence that communicates the core purpose and key behavioral characteristic (verbosity level). Every word earns its place - 'Run all tests' establishes the action, 'with minimal output' describes the output characteristic, and '(verbosity level 0)' provides specific technical 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?

Given that an output schema exists, the description doesn't need to explain return values. However, for a test execution tool with no annotations, the description should provide more behavioral context about what 'running tests' entails, what happens on failure, or how results are structured. The presence of an output schema helps but doesn't fully compensate for the lack of operational transparency.

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 tool has 0 parameters with 100% schema description coverage. The description appropriately doesn't discuss parameters since none exist. It focuses on the tool's behavior rather than parameter semantics, which is correct for a parameterless tool.

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 clearly states the action ('Run all tests') and specifies the operational mode ('with minimal output (verbosity level 0)'). It distinguishes from siblings like 'run_tests_verbose' and 'run_tests_very_verbose' by indicating this is the minimal-output version. However, it doesn't explicitly contrast with 'run_unit_test' which might run a subset of tests.

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?

The description implies usage context by specifying 'minimal output' and 'verbosity level 0', suggesting this should be used when detailed test output isn't needed. However, it doesn't provide explicit guidance on when to choose this over alternatives like 'run_tests_verbose' or 'run_unit_test', nor does it mention any prerequisites or exclusions.

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