code-audit
Parallel code audit combining simplification and design critique analysis. Spawns two subagents (code-simplifier and design-critic) to independently review the current directory, consolidates findings into a prioritised report, and offers to create Transit tasks for actionable items. Use when you want a broad quality review of a codebase, e.g. "audit this code", "review codebase quality", "find improvements", "code audit".
What this skill does
# Code Audit
Parallel codebase quality review that orchestrates the `code-simplifier` and `design-critic` skills via subagents, then consolidates and presents findings.
## Workflow
### Phase 1: Parallel Analysis
Launch two `general-purpose` subagents in parallel using the Task tool:
**Subagent A — Code Simplifier**
Prompt the subagent to use the `code-simplifier` skill (via the Skill tool) against the current working directory. Instruct it to:
- Scan source files for complexity hotspots, unnecessary abstractions, and simplification opportunities
- Return a structured list of findings, each with: file path, line range, issue summary, suggested fix, and severity (high/medium/low)
**Subagent B — Design Critic**
Prompt the subagent to use the `design-critic` skill (via the Skill tool) against the current working directory. Instruct it to:
- Review architecture, module boundaries, data flow, and design decisions visible in the code
- Return a structured list of findings, each with: scope (file/module/system), issue summary, questions to resolve, and severity (high/medium/low)
Both subagents should focus on the current working directory and respect any project conventions in CLAUDE.md.
### Phase 2: Consolidation
After both subagents complete:
1. Deduplicate overlapping findings (same file + same concern)
2. Group findings into categories:
- **Simplification** — complexity reduction, readability
- **Architecture** — design issues, module boundaries, abstraction problems
- **Shared concerns** — findings flagged by both analyses
3. Sort by severity (high first), then by category
### Phase 3: Present Report
Present findings to the user in this format:
```
## Code Audit: {directory name}
### Shared Concerns
{Findings flagged by both subagents — these are highest signal}
### Architecture Issues
{Design critic findings, sorted by severity}
### Simplification Opportunities
{Code simplifier findings, sorted by severity}
### Summary
- {total} findings: {high} high, {medium} medium, {low} low
```
Each finding should include: location, description, and suggested action.
### Phase 4: Transit Tasks
After presenting the report, ask the user if they want Transit tasks created for any findings. If yes:
- Create one task per actionable finding (or group related findings into a single task)
- Use type `chore` for simplification items, `bug` for design issues that could cause problems
- Include the finding details in the task description
- Use `mcp__transit__create_task` to create tasks
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