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rust-systems-programming

Complete guide for Rust systems programming including ownership, borrowing, concurrency, async programming, unsafe code, and performance optimization

Quality

63%

Does it follow best practices?

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Adds up to 20 points to the overall score

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SecuritybySnyk

Passed

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tessl review fix ./plugins/luxor-backend-toolkit/skills/rust-systems-programming/SKILL.md
SKILL.md
Quality
Evals
Security

Quality

Content

46%Weight 40%Scale 1-5

Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.

The skill is rich and actionable with strong code examples, but it is severely over-long for SKILL.md, explains many basic concepts Claude already knows, and does not use progressive disclosure to split reference material into bundle files.

Suggestions

Move the bulk reference material (error-code catalog E0500/E0502/E0505/E0524/E0507, sanitizer examples, production patterns, async-closure details) into separate files under references/ and link to them from SKILL.md.

Cut explanations of basic concepts Claude already knows (ownership rules, move semantics, what Box/Rc/Arc/RefCell are, the ? operator) down to one-line reminders, keeping the focus on non-obvious guidance.

Tighten the "When to Use This Skill" list and keep only the highest-value quick-reference cheat sheets inline; route the rest to reference files.

DimensionReasoningScore

Conciseness

The body is noticeably verbose, extensively explaining concepts Claude already knows (ownership rules, move semantics, basic borrowing, what Box/Rc/Arc are, the ? operator), with padded tutorial-style prose throughout a ~1150-line file.

2 / 5

Actionability

Most sections give concrete, executable Rust code and commands (borrowing examples, mpsc channels, Mutex/Arc, sanitizer build flags, error-code problem/solution pairs); a few fragments (e.g. a bare `Box<T>` line, the inline-assembly block) keep it just below fully copy-paste ready.

4 / 5

Workflow Clarity

This is a reference/catalog skill rather than a multi-step workflow; it is well-organized by topic with a "When to Use" section and troubleshooting issue/solution pairs, but lacks explicit sequenced steps or validation checkpoints.

3 / 5

Progressive Disclosure

Everything is inlined into a single monolithic SKILL.md with no bundle files in references/scripts/assets; content that clearly belongs in separate files (error-code catalog, sanitizer examples, production patterns, async closures) is all inlined with no one-level-deep references.

2 / 5

Total

11

/

20

Passed

Description

66%Weight 40%Scale 1-5

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 gives a clear, specific picture of the skill's domain and capabilities but omits any explicit "Use when..." trigger guidance, capping completeness. Trigger terms and distinctiveness are good.

Suggestions

Add an explicit trigger clause, e.g. "Use when building systems software, FFI bindings, async/concurrent programs, or performance-critical code in Rust."

Mention FFI and memory safety in the description to match the body's coverage and broaden natural trigger terms.

Frame capabilities as concrete actions (e.g. "Build memory-safe systems code", "Write concurrent and async programs") rather than only naming topics.

DimensionReasoningScore

Specificity

The description names the domain and lists several specific subtopics ("ownership, borrowing, concurrency, async programming, unsafe code, and performance optimization"), giving comprehensive topical coverage, though these are topics rather than concrete actions and FFI is omitted.

4 / 5

Completeness

It clearly states the "what" ("Complete guide for Rust systems programming including...") but provides no "Use when..." trigger clause, so per the guideline completeness is capped at 3.

3 / 5

Trigger Term Quality

It includes natural Rust phrases a user would say ("Rust systems programming", "ownership", "concurrency", "async programming", "unsafe code") with good coverage, though some synonyms (memory safety, FFI, .rs) are missing.

4 / 5

Distinctiveness Conflict Risk

"Rust systems programming" is a clear niche with mostly distinct triggers and only minor overlap risk with adjacent general-Rust skills.

4 / 5

Total

15

/

20

Passed

Validation

87%

Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.

Validation — 14 / 16 Passed

Validation for skill structure

CriteriaDescriptionResult

skill_md_line_count

SKILL.md is long (1153 lines); consider splitting into references/ and linking

Warning

frontmatter_unknown_keys

Unknown frontmatter key(s) found; consider removing or moving to metadata

Warning

Total

14

/

16

Passed

Repository

manutej/luxor-claude-marketplace

Path

plugins/luxor-backend-toolkit/skills/rust-systems-programming/SKILL.md

Revision

1861cc9

Reviewed

Table of Contents

DiscoveryImplementationValidation

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