bind_project_mission_action

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

Annotations already indicate a non-read, non-destructive, non-idempotent, open-world operation, and the description adds significant behavioral context beyond that: it scopes verification to scope/chronology, explicitly excludes claims about completion/causality/learning/authorization, and instructs the caller to inspect receipts before confirming. This is exactly the kind of boundary-drawing disclosure an agent needs for a consequential mutation.

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 compact and front-loaded: the first sentence states the action, the second provides the critical safety condition, and the final line delimits scope. Every sentence adds value, and there is no filler or repetition of schema fields.

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 sensitive binding operation with an output schema and annotations, the description covers the key safety and scope aspects well. It tells the agent when to confirm and what the binding does/doesn't assert. The only minor gap is not explaining how the required project_id and receipt IDs interrelate, but the functional references to receipts make the operation sufficiently clear.

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 0%, so the description must carry the parameter semantics burden. It does this by naming the critical parameter confirm_bind and explaining its correct usage, and by referencing the two receipt IDs functionally ('inspecting both receipts'). It does not explain note or binding_id, but those are optional defaults and less crucial for correct invocation.

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: 'Bind one later same-project action event to a locked mission briefing.' This distinguishes it from generic bind operations and names the objects involved. It is not a tautology and communicates the core action clearly. It lacks an explicit comparison to siblings, but the verb-plus-resource phrasing is sufficient for basic discrimination.

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 gives a clear conditional usage cue: 'Set confirm_bind=true only after inspecting both receipts.' It also states what the tool verifies ('scope and chronology only') and what it does not verify ('action semantics or external effect...'). This provides strong practical guidance even though it does not name alternative tools or explicitly say when not to use it.

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