You are a Rust project architecture expert specializing in scaffolding production-ready Rust applications. Generate complete project structures with cargo tooling, proper module organization, testing
39
37%
Does it follow best practices?
Impact
—
No eval scenarios have been run
Passed
No known issues
Optimize this skill with Tessl
npx tessl skill review --optimize ./skills/systems-programming-rust-project/SKILL.mdQuality
Discovery
32%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 truncated mid-sentence, which immediately undermines its effectiveness. While it identifies the domain (Rust project scaffolding) and mentions some relevant capabilities, it lacks a 'Use when...' clause and uses second-person voice ('You are'), both of which are penalized by the rubric. The description needs to be completed, rewritten in third person, and augmented with explicit trigger conditions.
Suggestions
Add an explicit 'Use when...' clause with trigger terms like 'new Rust project', 'Rust boilerplate', 'Cargo.toml setup', 'crate structure', or 'Rust workspace'.
Rewrite in third person voice (e.g., 'Scaffolds production-ready Rust applications with cargo tooling...') instead of the current 'You are...' framing.
Complete the truncated sentence and list specific concrete actions such as 'generates Cargo.toml configurations, sets up workspace layouts, creates module hierarchies, configures CI pipelines, and adds test scaffolding'.
| Dimension | Reasoning | Score |
|---|---|---|
Specificity | Names the domain (Rust project architecture) and some actions (scaffolding, generate project structures, cargo tooling, module organization, testing), but the description is truncated and doesn't fully enumerate concrete actions like a score-3 would. | 2 / 3 |
Completeness | The description addresses 'what' (scaffolding Rust projects) but completely lacks a 'Use when...' clause or any explicit trigger guidance for when Claude should select this skill. Per the rubric, a missing 'Use when...' clause caps completeness at 2, and the description is also truncated mid-sentence, further reducing quality. | 1 / 3 |
Trigger Term Quality | Includes relevant keywords like 'Rust', 'cargo', 'project structures', 'module organization', and 'testing', but misses common user variations like 'new Rust project', 'Cargo.toml', 'workspace', 'crate', or 'boilerplate'. Also uses second-person framing ('You are') which reduces naturalness. | 2 / 3 |
Distinctiveness Conflict Risk | The focus on Rust project scaffolding is somewhat specific, but 'project structures', 'testing', and 'module organization' could overlap with general code generation or other language-specific scaffolding skills. The Rust + cargo combination provides some distinctiveness but not enough to be clearly niche. | 2 / 3 |
Total | 7 / 12 Passed |
Implementation
42%Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.
The skill provides highly actionable, executable Rust scaffolding templates but is severely bloated — it inlines complete boilerplate for five different project types that Claude could largely generate from minimal prompts. It lacks validation checkpoints (e.g., 'cargo check' after scaffolding) and has no progressive disclosure, dumping everything into a single monolithic file. The generic 'Use this skill when' / 'Do not use this skill when' sections and context preamble add no value.
Suggestions
Split each project type (binary, library, workspace, web API, WASM) into separate referenced files and keep SKILL.md as a concise overview with a decision tree pointing to the right template.
Remove explanations Claude already knows (e.g., what binary vs library projects are, that cargo new initializes git) and trim boilerplate to only non-obvious, opinionated choices.
Add explicit validation checkpoints after scaffolding: 'Run `cargo check` to verify compilation' and 'Run `cargo test` to confirm test setup works.'
Remove the generic 'Use this skill when / Do not use this skill when' and 'Limitations' sections, which add no actionable information beyond what the skill title already conveys.
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | Extremely verbose at ~300+ lines. Covers five different project types (binary, library, workspace, web API, WASM) with full boilerplate code for each, much of which Claude already knows how to generate. The 'Use this skill when / Do not use this skill when' sections are generic filler. Repeating full Cargo.toml files, complete module structures, and standard Rust patterns wastes significant token budget. | 1 / 3 |
Actionability | Provides fully executable, copy-paste ready code examples including complete Cargo.toml files, main.rs, cli.rs, error.rs, Makefile, and configuration files. Commands are specific (cargo new, cargo clippy) and code is real, not pseudocode. | 3 / 3 |
Workflow Clarity | Steps are numbered (1-7) and sequenced logically from analysis through initialization to tool configuration. However, there are no validation checkpoints — no step says 'run cargo check to verify the project compiles' or 'run cargo test to confirm the scaffold works.' For a scaffolding task that generates multiple files, a verification step is important but missing. | 2 / 3 |
Progressive Disclosure | Monolithic wall of content with no references to external files. All five project types are fully inlined, making the skill extremely long. The different project types (binary, library, workspace, web API) should be split into separate referenced files, with SKILL.md serving as an overview that points to them. | 1 / 3 |
Total | 7 / 12 Passed |
Validation
90%Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.
Validation — 10 / 11 Passed
Validation for skill structure
| Criteria | Description | Result |
|---|---|---|
frontmatter_unknown_keys | Unknown frontmatter key(s) found; consider removing or moving to metadata | Warning |
Total | 10 / 11 Passed | |
76aea27
Table of Contents
If you maintain this skill, you can claim it as your own. Once claimed, you can manage eval scenarios, bundle related skills, attach documentation or rules, and ensure cross-agent compatibility.