sc_checkout

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

With no annotations provided, the description carries the full burden of behavioral disclosure. It does not state what happens during checkout (e.g., file locking, write permissions, side effects), nor does it mention any caveats or environmental requirements.

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 concise sentence with no fluff, making it easy to parse. However, its brevity borders on under-specification, though it satisfies the conciseness requirement by being front-loaded and direct.

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 the simplicity of the tool (one parameter, no annotations, no output schema), the description is minimally sufficient but lacks important context such as behavioral effects, workflow integration with sibling tools (e.g., sc_checkin), and any conditions that might prevent checkout. This is inadequate for an agent to use it confidently.

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 single parameter 'paths' is fully documented in the schema with the description 'File paths to check out', giving 100% coverage. The tool description adds no extra meaning beyond what the schema already provides, so the baseline score of 3 is appropriate.

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 tool checks out file(s) from source control, using a specific verb and resource. It distinguishes from siblings like sc_checkin (the opposite operation) but does not explicitly contrast with other source control operations, leaving some ambiguity.

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 is provided on when to use this tool versus alternatives like sc_checkin or sc_revert. The description lacks any mention of prerequisites, typical scenarios, or exclusions, leaving the agent without decision-making support.

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