Code review
npx -y skills add s-hiraoku/synapse-a2a --skill code-reviewAssembled from the repository path, not quoted from the project. Check it against their README if it does not work.
2 things to look at
- no licenseNo license file was found in the repository. Code published without one is not open source by default, so using it at work is a question for whoever answers licensing questions where you are.
- 9 stars9 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
Perform structured code reviews focusing on correctness, readability, security, and maintainability. Use this skill when reviewing pull requests, evaluating code changes, or establishing review standards for a team.
The file declares its own license as MIT. That is the author’s claim about this one file, and it is not the same thing as the license GitHub reports for the repository, which is listed with the other numbers below.
SKILL.md
2.8 KB, as published. Nobody here has run it
Code Review
Perform structured, actionable code reviews.
When to Use
- Reviewing a pull request or set of changes
- Evaluating code quality before merging
- Auditing a module for technical debt
- Establishing review standards or checklists
Review Dimensions
Review code across these dimensions, in priority order:
1. Correctness
- Does the code do what it claims?
- Are edge cases handled? (null, empty, overflow, concurrency)
- Are error paths tested?
- Do tests cover the changed behavior?
2. Security
- Input validation at system boundaries
- No secrets in code (API keys, passwords, tokens)
- SQL/command injection prevention
- Proper authentication and authorization checks
- See
security-auditskill for deeper analysis
3. Readability
- Clear naming (variables, functions, classes)
- Functions do one thing
- No deep nesting (max 3 levels)
- Comments explain "why", not "what"
- Consistent style with the surrounding codebase
4. Maintainability
- No unnecessary abstractions
- DRY without over-abstraction (rule of three)
- Dependencies are justified
- Breaking changes are flagged
5. Performance
- Only flag when there is a real concern (hot path, large data, N+1 queries)
- Do not micro-optimize unless the context demands it
Review Output Format
Structure feedback as:
## Review: <PR title or file>
### Must Fix
- [ ] **file.py:42** — [Correctness] Description of the issue and suggested fix
### Should Fix
- [ ] **file.py:78** — [Readability] Description and suggestion
### Consider
- [ ] **file.py:100** — [Performance] Optional improvement
### Positive
- file.py:15 — Good use of context manager for resource cleanup
Severity levels:
| Level | Meaning | Merge? |
|---|---|---|
| Must Fix | Bug, security issue, or broken contract | Block |
| Should Fix | Significant readability/maintainability concern | Request changes |
| Consider | Optional improvement, style preference | Approve with comment |
| Positive | Good patterns worth highlighting | - |
Guidelines
- Be specific - Point to exact lines, suggest concrete alternatives
- Explain why - "This could cause X because Y", not just "change this"
- Separate style from substance - Automate style (linters); review logic manually
- Limit scope - Review what changed, not the entire file (unless asked)
- Acknowledge good work - Include at least one positive observation
- Propose, don't impose - "Consider using X" not "You must use X" (unless it's a Must Fix)