Confirm a queued Safe transaction

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

Annotations declare readOnlyHint=false and destructiveHint=false, so the mutating nature is already known; the description adds real value by disclosing the threshold mechanic and that execution can occur on-chain as a result. It omits permission/ownership requirements and expected failure modes, which for an on-chain-signing tool would be worth stating.

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 short sentences, front-loaded with the action and its consequence; no redundant restatement of the name or title.

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?

No output schema exists, and the description conveys the meaningful outcome (threshold reached → executed) well. It does not describe what is returned or how a below-threshold signature is reported, leaving a modest gap for a single-parameter mutation tool.

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?

Only one parameter, with 100% schema coverage that already describes the hash format and points to safe_pending_transactions as its source. The description adds no further parameter detail, so the baseline 3 applies.

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 and resource ("adds the agent's signature to a queued Safe transaction") and immediately explains the consequence (threshold execution on-chain). This distinguishes it from the listing sibling safe_pending_transactions, which the schema names as the source of the hash.

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?

"Use this to help along a vote that was proposed but not yet executed" gives a clear usage condition. It does not explicitly state exclusions (e.g., don't call when already executed or when the agent isn't an owner), so it falls short of a full when/when-not/alternatives treatment.

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