backfill_work_identity

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

No annotations are provided, so the description carries the full behavioral burden. It implies a mutation/backfill operation but never states required authorization (the controller_actor_id/controller_token suggest a control plane), idempotency, conflict behavior on existing bindings, or reversibility.

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?

A single tight sentence with no filler, and the action leads the clause. Its brevity is not the problem — the abstraction is — so it earns credit for structure without reaching a 5.

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?

An output schema exists so return values need not be explained, but for a six-parameter mutation with zero annotation and zero schema coverage, the description omits who may invoke it, what state is mutated, and how it relates to the many adjacent binding/family tools.

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 0% across six parameters, and the description only loosely gestures at 'family state'. It adds no meaning for family_id, project_id, controller_actor_id, controller_token, source_ref, or title, leaving the agent to guess at the required control-plane actors.

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 states a recognizable action (binding state to a WorkIdentity) via a backfill, which is more than a tautology. However, 'historical canonical family state' is domain jargon that does not clearly distinguish it from siblings such as bind_work_turn, effective_family_view, or bind_contract_turn.

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?

There is no statement of when this tool should be used versus alternatives, no preconditions, and no note on when not to use it. The clause 'without inventing user intent' gestures at a constraint but does not give an agent any actionable routing guidance relative to the many bind_* and family_* siblings.

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