athena_frontier_claim

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

With no annotations, the description carries the full burden, and it delivers meaningful behavioral details: 'create-if-absent' (conditional mutation), 'separate CLAIM_ACQUIRED event append' (multi-step), 'only from fresh EVENT_READY state' (precondition), and 'preserve lost races and unjournaled effects' (concurrency and side-effect behavior). This goes beyond the schema and gives the agent insight into edge cases, though it remains cryptic.

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 short but not front-loaded with a plain-language summary. It is a single dense run-on sentence with semicolon-separated internal jargon. While every word tries to pack meaning, the lack of structure and heavy use of undefined terms make it less concise in effect; it prioritizes compactness over clarity.

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?

This is a complex tool with 13 parameters, no output schema, and no annotations. The description does not explain return values, error semantics, parameter purposes, or the meaning of key concepts like 'EVENT_READY' or 'unjournaled'. It is woefully incomplete for an agent to invoke this tool reliably.

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 only 8% (just operation_at), and the description mentions none of the 13 parameters. The agent cannot infer what 'expected_source_head', 'expected_frontier_digest', or 'run_id' mean or how to fill them. The description fails to compensate for the sparse schema, leaving parameter semantics completely unexplained.

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 an action ('claim create-if-absent' plus 'CLAIM_ACQUIRED event append') and a precondition, but it is shrouded in internal jargon like 'bounded fixed-path', 'fresh EVENT_READY state', and 'unjournaled effects'. It does not clearly communicate the tool's practical purpose to an AI agent, and the differentiation from sibling tools (e.g., prepare/reconcile) is only implicit.

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 provides a clear precondition ('only from fresh EVENT_READY state') and hints at race handling ('preserve lost races'), but it never explicitly states when to use this tool over alternatives like athena_frontier_claim_prepare or athena_frontier_claim_reconcile. The usage context is implied rather than spelled out.

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