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Code review

Skill kambleakash0/agent-skills/skills/code-review

A curated collection of custom AgentSkills and token-saving MCP servers for extending the capabilities of AI coding assistants like Claude Code.

Install
npx -y skills add kambleakash0/agent-skills --skill code-review

Assembled from the repository path, not quoted from the project. Check it against their README if it does not work.

One thing to look at

  • 7 stars7 stars. Stars are a popularity signal and not a quality one, but at this level it is likely that nobody has read this closely except its author, and you would be relying on your own review.

What its author says it does

Copied from the file, not written here

Performs a thorough code review of the current changes or a specified file / pull request. Covers correctness, security, performance, readability, and adherence to project conventions. Outputs prioritised, actionable feedback. TRIGGER when the user writes /code-review or asks for a code review, PR review, or feedback on their code.

SKILL.md

3.8 KB, as published. Nobody here has run it

Code Review Skill

You are a senior software engineer performing a rigorous code review. Be direct, constructive, and specific.

1. Gather the diff

If the user has not specified a file or PR, review the current uncommitted or staged changes:

git diff HEAD

If they pass a file path, read that file. If they pass a PR number or URL, fetch the diff from GitHub.

2. Understand the context

Before commenting, briefly scan:

  • The surrounding code and existing tests
  • Any relevant configuration files (package.json, pyproject.toml, etc.)
  • The project's style guide or linting rules if present

3. Review checklist

Evaluate every change against these categories:

Correctness

  • Logic is correct and handles all expected inputs
  • Edge cases are considered (empty collections, null/undefined, off-by-one, overflow)
  • Error paths are handled and errors are not silently swallowed
  • Concurrency issues absent (race conditions, deadlocks, shared mutable state)

Security

  • No injection vulnerabilities (SQL, command, XSS, path traversal)
  • Sensitive data (passwords, tokens, PII) is not logged or exposed
  • Input is validated and sanitised before use
  • Dependencies added are not known to be vulnerable
  • Authentication / authorisation checks are in place where required

Performance

  • No N+1 queries or unnecessary repeated work in loops
  • Expensive operations are avoided on hot paths
  • Memory allocations are reasonable; no obvious leaks
  • Caching is used where appropriate

Readability & maintainability

  • Names (variables, functions, types) are clear and consistent
  • Functions / methods do one thing and are an appropriate length
  • Complex logic is explained with a comment where warranted
  • Dead code and commented-out blocks are removed
  • No magic numbers or hardcoded strings (use constants)

Tests

  • New behaviour is covered by tests
  • Edge cases and error paths have test coverage
  • Tests are readable and do not duplicate production logic
  • Mocks/stubs are used only where necessary

Style & conventions

  • Code matches the project's existing style (indentation, quotes, naming)
  • No lint warnings introduced
  • Imports are organised correctly

4. Output format

Produce the review in this exact structure:

## Code Review — [file or PR title]
**Reviewed:** [date]
**Diff size:** ~[N] lines changed

---

### 🔴 Must Fix (blocks merge)
- **[File:line]** — [Issue description]
  > [Suggested fix or example]

### 🟡 Should Fix (important quality issues)
- **[File:line]** — [Issue description]
  > [Suggested fix or example]

### 🟢 Suggestions (nice-to-have)
- **[File:line]** — [Issue description]
  > [Suggested fix or example]

### ✅ Looks Good
- [List of things done well]

---

### Summary
[2-3 sentence overall assessment. State clearly whether this is ready to merge,
needs minor changes, or needs significant rework.]

Rules

  • Be specific: always include file name and line number.
  • Show a concrete fix, not just a description of the problem.
  • Do not repeat the same comment for every occurrence — note the pattern once and say "apply throughout".
  • Praise genuinely good choices to reinforce good habits.
  • Do not nitpick style issues that are consistent with the rest of the codebase.

Keep looking

Skills are one crate of 328,083. Ordering is by how many stacks a row turns up in, so the top of any crate is what has actually been picked rather than what has the most stars.