request_credential

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

No annotations are present, so the description carries the full transparency burden. It discloses the proof-of-possession generation through the wallet adapter, the server's deliberate non-signing role, and the critical constraint that the issued credential's contents are never returned to the agent. These are non-obvious behaviors an agent needs to know.

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 two sentences: the first names the action and precondition, the second adds the key behavioral details. Every clause carries information; no filler or repetition. It is well front-loaded for an agent scanning the tool list.

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 one-parameter tool with an output schema, the description covers the main action, important side effects, and the session precondition. It does not explicitly place itself in the issuance flow relative to siblings, but the access-token condition and 'completes' wording give enough context for correct invocation.

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?

With 0% schema description coverage, the description must supply parameter meaning. It adds that session_id refers to a session that already has an access token, which is useful, but it does not say where that session_id comes from (e.g., initiate_issuance) or provide format/source details. This is minimal compensation for a schema with a bare string parameter.

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 opens with a specific verb and resource: 'Complete the Credential Request for a session that has an access token.' It also clarifies the outcome (credential handed to wallet) and highlights a distinguishing behavior (server never signs; contents never returned), which sets it apart from sibling inspection and initiation tools.

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 states a clear precondition — the session must already have an access token — which implicitly tells the agent when in the flow to call it. It does not explicitly compare it against siblings like get_issuance_status or inspect_credential_offer, so it misses the full 'when not to use' guidance.

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