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

No annotations exist, so the description carries the full burden and mostly meets it: it mandates persisting the exact command plus UUID idempotency key before sending, warns of lease expiry, and gives a firm scope disclaimer (no automatic execution, production access, funding, task award or payment release). It omits what happens on stale revision, what recover actually repairs, and error semantics.

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?

Dense but front-loaded: capabilities come first, then operational constraints, then scope exclusions. Every sentence carries content. The role sentence is slightly telegraphic ('Owners accept, request revisions, retry or replace workers explicitly') and its terseness costs some parseability.

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 15-variant polymorphic tool with no annotations and no output schema, the description covers workflow and safety but not the contract of the discriminator: it never states that 'action' selects the variant, never explains the revision-based optimistic concurrency that most variants require, and does not mention what a successful response contains. An agent could still mis-call it.

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 100% per context signals, but this is misleading: the schema has no per-field descriptions, only types, patterns and min/max. The description adds meaning for lease_token ('workers need the current lease_token; checkpoint before expiry'), idempotency_key (persist before sending) and dependency_ids ('accepted dependencies'), but leaves revision (concurrency token) and share_scope unexplained, which are the highest-risk fields.

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 enumerates the concrete lifecycle operations (create project, add milestones, claim work, checkpoint, submit evidence, recover) which maps well onto the schema's discriminator actions. It is clear what resource the tool governs, though it never names the 'action' discriminator or explicitly distinguishes itself from siblings like get_execution_projects or get_execution_history.

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?

It assigns roles explicitly: workers claim/checkpoint/submit, owners accept/request revisions/retry/replace. That is real routing guidance. It lacks explicit 'use this instead of X' statements and does not say which sibling to call for reading state versus mutating it.

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