code reviewby owainlewis

Code Review

owainlewis/code-review

Source owainlewis/youtube-tutorials ↗License Not recorded

Review code changes for bugs, security issues, performance problems, and style violations.

NewMaintained

Automatic

Coding pack

Last verified 8/21/2026

What it changes

Passed 5 of 20 test cases with the skill, and 15 of 20 without it.

Without skill75%

With skill25%

0 fixed14 passed either way5 still failing3 broke

Pass-rate lift: -50 pp
Tokens: -23%
Agent turns: 0%
Response time: -35%

Model gemini-3.6-flashMeasured 8/21/2026v114 of 22 cases passed with skill · 20 comparable

Tokens, turns and time describe resource use, not a dollar price.

Use this skill

Save it into your project's skills folder. Claude Code picks it up in its next session.

curl -fsSL --create-dirs -o .claude/skills/owainlewis-code-review/SKILL.md https://app.decimal.ai/s/owainlewis-code-review/SKILL.md

Want it pinned and updatable? pip install "decimalai>=0.15", then decimalai skills add owainlewis-code-review, and start Claude Code with claude --plugin-dir "$(git rev-parse --show-toplevel)/.agents"

1 · One-time — install the CLI (docs ↗)

pip install "decimalai>=0.15"

2 · Get the skill — writes .agents/skills/owainlewis-code-review/ and pins it in .decimal/skills.lock

decimalai skills add owainlewis-code-review

No CLI? Get the same file — curl · raw file

curl -fsSL --create-dirs -o .claude/skills/owainlewis-code-review/SKILL.md https://app.decimal.ai/s/owainlewis-code-review/SKILL.md

Raw file: /s/owainlewis-code-review/SKILL.md ↗ · machine-readable summary at /s/owainlewis-code-review.json ↗

Safety checks: 3 of 3 passed

Code scan CleanIntent PassedContent Clean

What's inside

The instructions your model reads when the skill loads.

SKILL.md42 linessingle file

Code Review

When reviewing code, follow this process:

Step 1: Understand the Change

Run git diff (or git diff --staged for staged changes) to see what changed. Read the modified files in full to understand the surrounding context.

Step 2: Check for Issues

Review each changed file for:

Correctness

Logic errors, off-by-one errors, race conditions
Missing null/undefined checks at system boundaries
Incorrect error handling (swallowed errors, wrong error types)

Security

SQL injection, XSS, command injection
Hardcoded secrets or credentials
Overly permissive file/network access

Performance

N+1 queries, unnecessary loops, large allocations
Missing indexes for new database queries
Blocking operations in async code

Maintainability

Unclear naming, overly complex logic
Dead code, unused imports
Missing types in TypeScript

Step 3: Report

Format your review as:

Summary: One sentence on what the change does
Issues: Specific problems with file paths and line numbers
Suggestions: Optional improvements (clearly marked as optional)

Track record

Benchmark

5 / 20

test cases passed, vs 15 / 20 without

Adoption

Users: 0
Times used: 0

Safety and source details

SkillSafety

✓ 3 of 3 passed

Code scan15 of 15 checks clean

0 critical · 0 warning · 0 info — scanner v4 — 8/3/2026

View 15 scanner checks

live_secretremote_code_executionreverse_shelldata_exfiltrationssrf_metadataagent_snoopinganti_refusaldestructive_commandsobfuscated_unicodeunicode_homoglyphopaque_blobsuspicious_urltool_overreachtrigger_abuseprompt_injection_phrasing

IntentSafe

LLM judge · does the skill do what it claims

ContentClean

LLM judge · policy & harmful-content review