run_fixture

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

The annotations are all false (readOnlyHint=false, idempotentHint=false), giving minimal safety signals. The description notes 'deterministically' and 'store in-memory,' which adds some behavioral context, but it doesn't disclose what side effects occur, whether results persist across calls (in-memory implies non-persistent), what happens to prior stored results, or how this relates to the host-run persistence flow. For a tool that mutates state with no destructive hint provided, more transparency is needed.

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 a single brief sentence with no filler, which is efficient. However, brevity here comes at the cost of substance—it's short because it omits essential information rather than because it's tight. 'Deterministically' and 'store the in-memory result and events' are the only content-bearing elements.

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 tool with 4 undocumented parameters, no annotations describing safety, and an output schema, this description is inadequate. It doesn't explain what the fixture stages are, what 'deterministic' means in this context (seeded randomness?), what in-memory storage implies for subsequent tool calls (does get_run_result access it?), or how the 4 parameters affect execution. The output schema exists but the description doesn't orient the agent on what to expect.

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 4 parameters: analysts, as_of_date, risk_rounds, debate_rounds. The description mentions none of them—no parameter names, types, or meaning. The tool's role seems to involve running some analytical fixture with analyst configuration, date, and rounds of risk/debate, but none of this is explained. The description adds zero value over the raw schema.

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 says 'Run all stages deterministically and store the in-memory result and events.' It uses a verb (run) and resource (fixture implied by name), but 'all stages' is vague—it doesn't specify what stages exist, what the fixture is, or what distinguishes this from sibling tools like prepare_fixture, commit_host_stage, or start_host_run. It relies heavily on the tool name for meaning.

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?

No guidance on when to use this versus alternatives. The sibling list contains many run-related tools (prepare_fixture, prepare_host_run, start_host_run, commit_host_stage, finalize_host_run, export_completed_run) and this description offers no differentiation. It doesn't say when this tool is appropriate versus when to use the host-run variants.

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