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

Annotations already establish readOnlyHint=true, destructiveHint=false, and openWorldHint=false. The description adds meaningful context beyond that: it returns provider status plus browser-only connect/reconnect guidance, and explicitly notes that credentials are not exposed.

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 sentences with no waste, front-loaded with the usage trigger before the behavioral and disambiguation notes. Every clause earns 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 read-only, zero-required-parameter listing tool with a fully documented schema and existing annotations, nothing needed to invoke it correctly is missing; no output schema exists, so return-value explanation is unnecessary.

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 both the provider filter and include_guidance. The description echoes the browser-only guidance concept but adds no syntax or default details beyond what the schema supplies, making the baseline 3 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?

States a specific verb+resource (list provider connections) and enumerates the exact providers covered (GitHub, GitLab, Bitbucket, Azure DevOps), so an agent immediately knows what is being enumerated. It also distinguishes itself from the repository-link tools, avoiding confusion with list-space-repository-links.

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?

Gives concrete trigger conditions ('when the user asks whether X is connected') and names an alternative ('Use repository-link tools for Space Autopilot links'). It does not, however, clearly distinguish itself from the closest sibling list-provider-repositories, which also concerns imported repositories.

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