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binary-loop

Iteratively reduce Fallow binary size using cargo-bloat and release-build measurements while preserving features, performance, and compatibility.

64

Quality

76%

Does it follow best practices?

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SecuritybySnyk

Passed

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tessl review fix ./.agents/skills/binary-loop/SKILL.md
SKILL.md
Quality
Evals
Security

Quality

Content

85%Weight 40%Scale 1-3

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

The body is an exceptionally lean, well-sequenced loop with explicit validation and feedback, but its measure/rebuild steps describe intent rather than giving executable cargo commands. Adding concrete invocations would make it copy-paste actionable.

Suggestions

Add the concrete measurement command, e.g. `cargo bloat --release --crates` (or the flags you standardize on), so step 1 is executable.

Specify the rebuild invocation for step 4, e.g. `cargo build --release`, and note keeping settings identical (e.g. locked `Cargo.lock`, unchanged `--features`).

Show how to capture/compare the before/after size (e.g. `ls -l target/release/fallow` or a recorded baseline) so "size improves" is unambiguous.

DimensionReasoningScore

Conciseness

Seven terse numbered steps plus one constraint line with no concept explanation or padding; every token earns its place and it assumes Claude's competence.

3 / 3

Actionability

The sequence and decision rule are concrete ("select one dependency, monomorphization, feature, or codegen contributor"; "keep the change only when size improves and verification passes"), but the core measure/rebuild steps lack executable commands, so it is not copy-paste ready.

2 / 3

Workflow Clarity

A clearly numbered loop with an explicit validation gate (step 5: keep only when size improves and verification passes) and a final verification step ("Run `review`").

3 / 3

Progressive Disclosure

Under 50 lines with no need for external references; the content is well-organized into a numbered list and a constraint line, which suffices for a simple skill.

3 / 3

Total

11

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12

Passed

Description

67%Weight 40%Scale 1-3

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 distinct, naming concrete tools and a clear project niche, but it lacks an explicit "Use when…" trigger and broader natural keyword variations. Adding trigger guidance would raise completeness and trigger-term quality.

Suggestions

Append an explicit trigger clause, e.g. "Use when the user wants to shrink the Fallow release binary, mentions binary size/bloat, or asks to optimize binary footprint."

Add common natural variations such as "binary bloat", "smaller binary", and "optimize binary size" so users' phrasings match.

DimensionReasoningScore

Specificity

Names concrete tools and methods — "cargo-bloat and release-build measurements" — plus explicit constraints ("preserving features, performance, and compatibility"), which is more specific than the anchor-2 example.

3 / 3

Completeness

It clearly states what the skill does (reduce Fallow binary size) but has no "Use when…" clause or equivalent explicit trigger guidance, so completeness is capped at 2 per the rubric guideline.

2 / 3

Trigger Term Quality

"binary size" and "cargo-bloat" are natural terms a Rust user would say, but common variations like "binary bloat", "smaller binary", or "optimize binary size" are missing.

2 / 3

Distinctiveness Conflict Risk

The named project ("Fallow") combined with the specific tool ("cargo-bloat") carves a clear niche unlikely to trigger unrelated skills.

3 / 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.

Validation16 / 16 Passed

Validation for skill structure

No warnings or errors.

Repository
fallow-rs/fallow
Reviewed

Table of Contents

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