lint_rxjs

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

Beyond the readOnly and idempotent annotations, the description candidly discloses that analysis is 'regex-based best-effort' and that type-info-required rules 'use heuristics and may have false positives/negatives.' This is valuable, non-obvious behavioral context that sets proper expectations for the agent.

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 compact and front-loaded, with each sentence contributing purpose, mechanics, caveats, or framework scope. The phrase 'and more' is somewhat vague, and the opening parenthetical interrupts flow slightly, but overall the structure is efficient.

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 moderate four-parameter tool with no output schema, the description gives enough behavioral and parameter context for an agent to invoke it correctly. It could be more complete by describing the shape of the lint results or explicitly routing to/away from specialized siblings like detect_memory_leak.

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%, so the baseline is 3. The description adds limited meaning by mentioning rule categories and Angular/React/Vue support, which maps to the rules and framework parameters, but it does not substantially elaborate beyond what the schema already documents.

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 opens with a specific verb and resource: 'Lint RxJS code snippets,' and then enumerates concrete checks such as nested subscribes, memory leaks, and deprecated patterns. It clearly defines the tool's purpose but does not explicitly differentiate it from sibling tools like detect_memory_leak or analyze_operators, so it falls just short of a 5.

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 use case is implied: use this when you want stand-alone, regex-based linting of RxJS snippets without requiring ESLint, with optional framework-specific rules. However, it never explicitly states when to prefer this tool over a sibling or when not to use it, leaving alternatives and exclusions unaddressed.

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