Shell Script Review

Audit shell scripts for correctness, safety, and portability.

Quick Start

/shell-review path/to/script.sh

When to Use

• CI/CD pipeline scripts
• Git hook scripts
• Wrapper scripts (run-*.sh)
• Build automation scripts
• Pre-commit hook implementations

Required TodoWrite Items

1. shell-review:context-mapped
2. shell-review:exit-codes-checked
3. shell-review:portability-checked
4. shell-review:safety-patterns-verified
5. shell-review:evidence-logged

Workflow

Step 1: Map Context (shell-review:context-mapped)

Identify shell scripts:

# Find shell scripts
find . -name "*.sh" -type f | head -20
# Check shebangs
grep -l "^#!/" scripts/ hooks/ 2>/dev/null | head -10

Document: - Script purpose and trigger context - Integration points (make, pre-commit, CI) - Expected inputs and outputs

Step 2: Exit Code Audit (shell-review:exit-codes-checked)

@include modules/exit-codes.md

Step 3: Portability Check (shell-review:portability-checked)

@include modules/portability.md

Step 4: Safety Patterns (shell-review:safety-patterns-verified)

@include modules/safety-patterns.md

Step 5: Evidence Log (shell-review:evidence-logged)

Use imbue:evidence-logging to record findings with file:line references.

Summarize: - Critical issues (failures masked, security risks) - Major issues (portability, maintainability) - Minor issues (style, documentation)

Output Format

## Summary
Shell script review findings

## Scripts Reviewed
- [list with line counts]

## Exit Code Issues
### [E1] Pipeline masks failure
- Location: script.sh:42
- Pattern: `cmd | grep` loses exit code
- Fix: Use pipefail or capture separately

## Portability Issues
[cross-platform concerns]

## Safety Issues
[unquoted variables, missing set flags]

## Recommendation
Approve / Approve with actions / Block

Exit Criteria

• Exit code propagation verified
• Portability issues documented
• Safety patterns checked
• Evidence logged