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

Annotations already declare readOnly/idempotent/non-destructive, yet the description still adds real value: data provenance (project admins' connected GitHub/GitLab repos), a 20-commit cap, and a thorough list of legitimate empty-result conditions (no connected repo, no match, Free plan, paused integration). It does repeat 'read-only; changes nothing', which the annotations already fully express.

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 purpose is front-loaded, but it is stated three times: the title is pasted verbatim as the opening line, then restated as 'MCP tool list_development', then again as 'Development (D153): lists the merge / pull requests...'. The repetition of the read-only claim (also in annotations) and the duplicated spec reference crowd out otherwise useful 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 two-parameter read tool with no output schema, the description covers origin of the data, the returned shape, the commit cap, and every empty-state explanation an agent would need to respond without speculating. Sufficient to call and interpret correctly.

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 coverage is 100% and both parameters are documented with patterns and examples, so the schema already does the heavy lifting. The description adds the useful implication that issue_key matching is substring-based in branches/titles/commit messages, but no additional syntax or format detail beyond that.

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 names a specific verb (lists) and resource (pull/merge requests with state and CI, plus latest commits) scoped to an issue key, and enumerates the exact returned fields. Nothing in the sibling set (get_issue, list_comments, list_attachments) covers cross-repo development artifacts, so the boundary is clear.

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?

It gives concrete operational guidance: report state/CI/branch/link as returned, and if the result is empty, tell the user nothing is linked and suggest embedding the issue key in the branch, PR/MR title or commit message. It also notes that connecting repos and auto-move rules are admin responsibilities in the web app. What it lacks is an explicit pointer to a sibling alternative for adjacent needs.

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