yaaif_agent_spec_legacy_revision_backfill_apply

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

With no annotations, the description carries the full burden of behavioral disclosure. It conveys that this is an explicit operator action, but it does not disclose side effects, write semantics, irreversibility, validation failure behavior, or what happens after the backfill is applied. For a mutating apply-style tool, this is a significant gap.

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 short sentences with no filler. The core action is front-loaded, and the second sentence adds a meaningful distinction rather than repeating the tool name or schema.

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 high-risk apply operation with no output schema, no annotations, and zero parameter documentation, this description is not complete enough. It lacks return-value expectations, failure behavior, side effects, and the prerequisite relationship to the preview flow beyond the phrase 'exact preview hash.'

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%, so the description must compensate for all three parameters. It only adds meaning to 'preview_hash' by describing it as the exact preview hash; it does not explain 'spec_id' or 'expected_version' or how they relate to the backfill operation.

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 specific action ('Apply') on a specific resource ('legacy-release backfill') and adds a hard qualifier ('with the exact preview hash'). It also explicitly distinguishes itself from tenant rollout automation, which helps separate it from nearby workflow 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 clearly frames this as an operator action for reviewed backfills, and the phrase 'exact preview hash' strongly implies it should follow a preview step. It does not explicitly name the sibling preview tool or list when not to use it, but the context and exclusion are reasonably clear.

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