setup_environment

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

Annotations indicate read-only/destructive hints, but description adds critical behavioral context: explains return format ('curated list...with install commands'), scope ('tailored to the languages'), and persistence model ('one-time setup...persist across sessions'). Clarifies that tool returns commands rather than executing installation.

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?

Well-structured with clear sections: purpose statement, trigger conditions, return value documentation, and persistence note. Front-loaded with the core action. Slightly verbose but each sentence earns its place by specifying triggers or persistence behavior.

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?

No output schema exists, but description compensates by detailing what gets returned (plugin list with install commands) and execution model (user runs commands). Adequately complete for a zero-parameter setup tool.

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?

Zero parameters present, which per guidance warrants a baseline score of 4. No penalty applies since there are no parameters requiring semantic clarification beyond the empty 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?

Description opens with specific verb ('Set up') + resource ('Claude Code environment') + specific deliverable ('Pharaoh's curated plugin bundle'). Clearly distinguishes from sibling tools which are all analysis/read-only tools (get_codebase_map, check_reachability, etc.) rather than setup/configuration tools.

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?

Contains explicit 'CALL THIS WHEN:' section with three specific trigger conditions, including exact user phrases to listen for ('set up my environment', 'install plugins') and proactive conditions (after noticing LSP needs). Provides concrete usage guidance without needing alternatives.

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