Analyze Cargo.toml dependencies and attempt to remove unused features to reduce compile times and binary size
74
72%
Does it follow best practices?
Impact
62%
1.40xAverage score across 3 eval scenarios
Advisory
Suggest reviewing before use
Optimize this skill with Tessl
npx tessl skill review --optimize ./.claude/skills/rationalize-deps/SKILL.mdQuality
Discovery
67%Based on the skill's description, can an agent find and select it at the right time? Clear, specific descriptions lead to better discovery.
The description is specific and targets a clear niche (Rust/Cargo dependency feature optimization), making it highly distinctive. However, it lacks an explicit 'Use when...' clause which would help Claude know exactly when to select this skill, and it could benefit from additional trigger terms like 'Rust', 'crate', or 'build optimization' that users might naturally use.
Suggestions
Add an explicit 'Use when...' clause, e.g., 'Use when the user wants to optimize Rust build times, reduce binary size, or clean up unused Cargo features.'
Include additional natural trigger terms users might say: 'Rust', 'crate features', 'cargo build slow', 'dependency optimization', 'feature flags'.
| Dimension | Reasoning | Score |
|---|---|---|
Specificity | Lists specific concrete actions: 'Analyze Cargo.toml dependencies' and 'remove unused features' with clear outcomes 'reduce compile times and binary size'. Multiple specific actions are described. | 3 / 3 |
Completeness | Clearly answers 'what' (analyze Cargo.toml dependencies and remove unused features) but lacks an explicit 'Use when...' clause. The 'when' is only implied by the description of the action itself. | 2 / 3 |
Trigger Term Quality | Includes good natural keywords like 'Cargo.toml', 'dependencies', 'unused features', 'compile times', 'binary size', but misses common variations users might say like 'Rust', 'crate features', 'build optimization', 'cargo build slow', or 'dependency cleanup'. | 2 / 3 |
Distinctiveness Conflict Risk | Very specific niche targeting Cargo.toml feature optimization in Rust projects. Unlikely to conflict with other skills due to the highly specific domain of Rust dependency feature management. | 3 / 3 |
Total | 10 / 12 Passed |
Implementation
77%Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.
This is a solid, actionable skill with a well-defined multi-step workflow including validation checkpoints and rollback procedures. The concrete commands and real-world TOML examples make it immediately usable. Minor improvements could be made by trimming the redundant overview section and potentially splitting common patterns into a reference file.
Suggestions
Remove or condense the Overview section since it merely restates what the numbered steps already convey, saving tokens.
Consider moving the 'Common Patterns' and 'Tips' sections to a separate reference file (e.g., PATTERNS.md) and linking to it, improving progressive disclosure.
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | Generally efficient but includes some unnecessary explanation (e.g., 'Many crates enable features by default that may not be needed' and the overview bullets restate what the steps already cover). The common patterns section adds value but the overview is redundant with the step-by-step content. | 2 / 3 |
Actionability | Provides concrete, executable commands (cargo tree, cargo metadata with jq, cargo check), specific TOML configuration examples, and real-world patterns for common crates like serde, tokio, and reqwest. The guidance is copy-paste ready throughout. | 3 / 3 |
Workflow Clarity | Clear 5-step sequence with explicit validation checkpoints (cargo check after each change, full workspace verification in Step 5), a feedback loop for compilation failures (read errors → add features → re-check), binary search strategy for complex cases, and a rollback procedure. | 3 / 3 |
Progressive Disclosure | Content is well-structured with clear sections and headers, but everything is inline in a single file. The common patterns section and tips could be split into separate reference files for a cleaner overview. However, the total length is moderate enough that this is a minor issue. | 2 / 3 |
Total | 10 / 12 Passed |
Validation
100%Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.
Validation — 11 / 11 Passed
Validation for skill structure
No warnings or errors.
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Table of Contents
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