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faf_friday

Test fuzzy matching to detect Chrome extensions, handling typos like 'raect' or 'chr ext'.

Instructions

Friday features — Chrome Extension detection, fuzzy matching

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
testNoTest fuzzy matching with typos like "raect" or "chr ext"
Behavior2/5

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

No annotations provided, so description carries full burden. It only lists features without disclosing side effects, permissions, or output behavior. The parameter hint about typos is the only behavioral clue.

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?

Extremely concise—one sentence. While not wasteful, it sacrifices clarity. Still efficient for its brevity.

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

Completeness2/5

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

For a simple tool with one parameter, the description is incomplete. It doesn't explain the purpose of 'Chrome Extension detection' or how results are presented, leaving gaps for the agent.

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 parameter description already explaining the test use. The tool description adds no new semantics beyond repeating feature names, so marginal improvement over baseline.

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

Purpose3/5

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

The description mentions 'Chrome Extension detection, fuzzy matching' but lacks a clear verb+resource statement. It is better than a tautology but vague: does it detect, test, or list features? The input schema clarifies it's a test tool, but the description is ambiguous.

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

Usage Guidelines2/5

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

No guidance on when to use this tool versus siblings like faf_what or faf_debug. The description does not provide context for selection or exclusion.

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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