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gograph_returnusage

Read-onlyIdempotent

Analyze how callers use a function's return values: discarded, assigned, partially ignored, returned, or passed. Helps you decide before changing a function's return signature.

Instructions

Show how each caller uses the return value(s) of a named function: discarded, assigned, partially ignored, returned upstream, or passed directly to another call. Requires .gograph/graph.json — run gograph build . first. Read-only; no side effects. WHEN TO USE: Before changing a function's return signature — see which callers ignore the error or only use some return values. NOT TO USE: For error propagation tracing (use gograph_errorflow); for finding all callers without usage detail (use gograph_callers). RETURNS: List of call sites with usage classification (discarded/assigned/partially_ignored/returned/passed); empty when the function has no callers.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
functionYesThe function name to analyse (e.g., 'ValidateToken')
Behavior4/5

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

Annotations already provide readOnlyHint=true and idempotentHint=true; description adds prerequisite (requires .gograph/graph.json) and confirms read-only nature. No contradictions.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Description is well-structured, front-loading the core purpose and classifications, followed by usage guidance and return info. Concise but includes necessary details.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness5/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given only one parameter and no output schema, the description covers the return behavior (list with classifications) and prerequisite. No gaps for typical use.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 100% with a clear description for the single parameter. The description adds no additional semantic info beyond the schema.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool's purpose: showing how callers use return values, listing specific classifications (discarded, assigned, etc.). It distinguishes from siblings like gograph_callers and gograph_errorflow.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines5/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

Explicitly states when to use (before changing return signature) and when not to use, with specific alternative tools (gograph_errorflow, gograph_callers).

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

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