System Review

Perform a meta-level analysis of how well the implementation followed the plan and identify process improvements.

Purpose

System review is NOT code review. You're not looking for bugs in the code -- you're looking for bugs in the process.

Your job:

• Analyze plan adherence and divergence patterns
• Identify which divergences were justified vs. problematic
• Surface process improvements that prevent future issues
• Suggest updates to CLAUDE.md, agent definitions, and skill definitions

Inputs

Plan file: First argument from $ARGUMENTS Execution report: Second argument from $ARGUMENTS

Read both files thoroughly.

Analysis Workflow

Step 1: Understand the Planned Approach

Extract from the plan:

• What features were planned?
• What architecture was specified?
• What validation steps were defined?
• What patterns were referenced?

Step 2: Understand the Actual Implementation

Extract from the execution report:

• What was implemented?
• What diverged from the plan?
• What challenges were encountered?
• What was skipped and why?

Step 3: Classify Each Divergence

For each divergence, classify as:

Good Divergence -- Justified:

• Plan assumed something that didn't exist in the codebase
• Better pattern discovered during implementation
• Performance optimization needed
• Security issue discovered requiring different approach

Bad Divergence -- Problematic:

• Ignored explicit constraints in plan
• Created new architecture instead of following existing patterns
• Took shortcuts that introduce tech debt
• Misunderstood requirements

Step 4: Trace Root Causes

For each problematic divergence, identify the root cause:

• Was the plan unclear? Where, why?
• Was context missing? Where, why?
• Was validation missing? Where, why?

Step 5: Generate Process Improvements

Based on patterns, suggest:

• CLAUDE.md updates: Universal patterns or anti-patterns to document
• Agent definition updates: Instructions that need clarification
• Skill definition updates: Missing steps or unclear instructions
• New skills: Manual processes that should be automated

Output Format

Overall Alignment Score: __/10

• 10: Perfect adherence, all divergences justified
• 7-9: Minor justified divergences
• 4-6: Mix of justified and problematic divergences
• 1-3: Major problematic divergences

Divergence Analysis

For each divergence:

• What changed: [description]
• Planned: [what plan specified]
• Actual: [what was implemented]
• Classification: Good / Bad
• Root cause: [unclear plan | missing context | etc.]

System Improvement Actions

Update CLAUDE.md:

• Document [pattern X] discovered during implementation
• Add anti-pattern warning for [Y]

Update Agent Definitions:

• Clarify [instruction] in [agent].md

Update Skill Definitions:

• Add [missing step] to /plan skill
• Improve [section] in /execute skill

Create New Skill:

• /[skill-name] for [repeated manual process]

Key Learnings

What worked well:

• [specific things that went smoothly]

What needs improvement:

• [specific process gaps identified]

For next implementation:

• [concrete improvements to try]

Arguments: $ARGUMENTS