review-plan

name	review-plan
description	Review an implementation plan through multiple quality lenses and collaboratively iterate based on findings. Use when the user wants to evaluate a plan before implementation.
argument-hint	[path to plan file]
allowed-tools	["Bash(${CLAUDE_PLUGIN_ROOT}/scripts/config-*)"]

Review Plan

!${CLAUDE_PLUGIN_ROOT}/scripts/config-read-context.sh !${CLAUDE_PLUGIN_ROOT}/scripts/config-read-skill-context.sh review-plan !${CLAUDE_PLUGIN_ROOT}/scripts/config-read-agents.sh

If no "Agent Names" section appears above, use these defaults: accelerator:reviewer, accelerator:codebase-locator, accelerator:codebase-analyser, accelerator:codebase-pattern-finder, accelerator:documents-locator, accelerator:documents-analyser, accelerator:web-search-researcher.

!${CLAUDE_PLUGIN_ROOT}/scripts/config-read-review.sh plan

Plans directory: !${CLAUDE_PLUGIN_ROOT}/scripts/config-read-path.sh plans Plan reviews directory: !${CLAUDE_PLUGIN_ROOT}/scripts/config-read-path.sh review_plans

Plan Review Template

The template below defines the frontmatter and body structure that every plan review must carry. Read it now — use it to guide what information you record in Steps 3-4 and what shape you persist in Step 4.8.

!${CLAUDE_PLUGIN_ROOT}/scripts/config-read-template.sh plan-review

You are tasked with reviewing an implementation plan through multiple quality lenses and then collaboratively iterating the plan based on findings.

Initial Response

When this command is invoked:

1. Check if a plan path was provided:

• If a plan path was provided, read it immediately and FULLY
• If optional focus arguments were provided (e.g., "security and architecture"), note them for lens selection
• Begin the review process

2. If no plan path provided, respond with:

I'll help you review an implementation plan. Please provide:
1. The path to the plan file (e.g., `{plans directory}/2025-01-08-ENG-1478-feature.md`)
2. (Optional) Focus areas to emphasise (e.g., "focus on security and architecture")

Tip: You can invoke this command with arguments:
  `/review-plan {plans directory}/2025-01-08-feature.md`
  `/review-plan {plans directory}/2025-01-08-feature.md focus on security and architecture`

Then wait for the user's input.

Available Review Lenses

Lens	Lens Skill	Focus
Architecture	architecture-lens	Modularity, coupling, scalability, evolutionary design, tradeoffs
Security	security-lens	Threats, missing protections, STRIDE analysis, OWASP coverage
Test Coverage	test-coverage-lens	Testing strategy, test pyramid, edge cases, isolation, risk coverage
Code Quality	code-quality-lens	Design principles, testability, error handling, complexity management
Standards	standards-lens	Project conventions, API standards, accessibility
Usability	usability-lens	Developer experience, API ergonomics, configuration, onboarding
Performance	performance-lens	Algorithmic efficiency, resource usage, concurrency, caching
Documentation	documentation-lens	Documentation completeness, accuracy, audience fit
Database	database-lens	Migration safety, schema design, query correctness, integrity
Correctness	correctness-lens	Logical validity, boundary conditions, state management, concurrency
Compatibility	compatibility-lens	API contracts, cross-platform, protocol compliance, deps
Portability	portability-lens	Environment independence, deployment flexibility, vendor lock
Safety	safety-lens	Data loss prevention, operational safety, protective mechanisms

Process Steps

Step 1: Read and Understand the Plan

1. Read the plan file FULLY — never use limit/offset
2. Read any files the plan references — work items, related research, key source files mentioned
3. Understand the plan's scope:

• What technologies and layers does it touch?
• Does it involve APIs, UI, infrastructure, data models?
• What's the complexity and risk profile?
• Who are the consumers — other developers, services, end users?

4. Check for existing reviews: Glob for review documents matching {plan reviews directory}/{plan-stem}-review-*.md. If any are found:

   • Read the most recent review document (highest review number) to understand what was previously reviewed
   • Note the previous verdict, review pass count, and key findings
   • Inform the user: "I found {N} previous review(s) of this plan. The most recent (review {N}, verdict: {verdict}) will be used as context."
   • The agents do NOT receive the previous review — they review the plan fresh. But the aggregation step (Step 4) should reference the previous review when composing cross-cutting themes and the assessment: specifically, note which findings from the previous review recur in the new review and which appear to have been addressed by plan changes.
   • If the prior review file exists but cannot be parsed (e.g., malformed frontmatter from a partial write), warn the user and proceed as if no prior review exists.

   The new review creates a new file with the next review number (e.g., -review-2.md). Previous review files are never modified or deleted — the full review history is preserved on disk.

Step 2: Select Review Lenses

Determine which lenses are relevant based on the plan's scope and any user- provided focus arguments.

If the user provided focus arguments:

• Map the focus areas to the corresponding lenses
• Include any additional lenses that are clearly relevant to the plan's scope
• Briefly explain which lenses you're running and why

If no focus arguments were provided, auto-detect relevance:

Take time to think carefully about which lenses apply based on:

• Architecture — relevant for most plans; skip only for trivial, single-file changes
• Code Quality — relevant for most plans; skip only for documentation-only or configuration-only changes
• Test Coverage — relevant for most plans; skip only for documentation-only, configuration-only, or infrastructure-only changes with no code
• Security — relevant when the plan involves: authentication/authorisation, user input handling, data storage, external integrations, API endpoints, secrets/credentials, network boundaries
• Standards — relevant when the plan involves: API changes, UI changes, new file/module creation, changes to public interfaces
• Usability — relevant when the plan involves: public APIs, CLI interfaces, configuration surfaces, breaking changes, migration paths, developer-facing libraries
• Performance — relevant when the plan involves: data processing pipelines, high-throughput APIs, concurrent processing resource efficiency, caching strategy, or algorithm-heavy logic. Skip for documentation-only, configuration-only, or trivial changes.
• Documentation — relevant when the plan involves: new public APIs, new user-facing features, configuration changes, breaking changes, or new system components that will need documentation.
• Database — relevant when the plan involves: database schema changes, new tables, migrations, query-heavy features, or changes to data access patterns.
• Correctness — relevant for most plans; skip only for documentation-only or trivial configuration changes.
• Compatibility — relevant when the plan involves: public API changes, dependency updates, protocol changes, cross-platform considerations, or versioning decisions.
• Portability — relevant when the plan involves: infrastructure changes, deployment modifications, new cloud service integrations, or environment-specific logic.
• Safety — relevant when the plan involves: data migration, deletion logic, deployment changes, automated processes, or changes to critical system paths.

Lens selection cap: Select the most relevant lenses for the change under review. If review configuration is provided above, use the configured min_lenses and max_lenses values. Otherwise, use the defaults: {min lenses} to {max lenses} lenses. Apply these prioritisation rules:

Apply this lens selection pipeline in order:

1. Start with all available lenses: the 13 built-in lenses plus any custom lenses listed in the review configuration above.
2. Remove disabled lenses: if review configuration specifies disabled_lenses, remove those from the available set. They are never selected regardless of auto-detect criteria.
3. Mark core lenses: if review configuration specifies core_lenses, use that list. Otherwise, the core lenses are Architecture, Code Quality, Test Coverage, and Correctness. Core lenses are included unless the change is clearly outside their scope.
4. Auto-detect remaining lenses: use the criteria below (for built-in lenses) and the auto-detect criteria from review configuration (for custom lenses) to identify which non-core lenses are relevant to the change. Custom lenses that provide auto-detect criteria participate in selection like any other non-core lens. Custom lenses without auto-detect criteria (marked "always include" in the configuration) are always selected. Custom lenses use absolute paths instead of the ${CLAUDE_PLUGIN_ROOT} lens path template.
5. Apply focus arguments: if the user provided focus areas, prioritise the corresponding lenses and fill remaining slots with auto-detected ones.
6. Cap at max_lenses: if more lenses than the configured maximum pass selection, rank by relevance and drop the least relevant. Prefer lenses whose core responsibilities directly overlap with the change's concerns.
7. Enforce min_lenses floor: never run fewer than min_lenses unless the change is trivially scoped.

When presenting the lens selection, clearly indicate which lenses are selected and which are skipped, with a brief reason for each skip.

Present your lens selection to the user before proceeding:

Based on the plan's scope, I'll review through these lenses:
- Architecture: [reason]
- Security: [reason — or "Skipping: no security-sensitive changes identified"]
- Test Coverage: [reason]
- Code Quality: [reason]
- Standards: [reason — or "Skipping: ..."]
- Usability: [reason — or "Skipping: ..."]
- Performance: [reason — or "Skipping: no performance-sensitive changes identified"]
- Documentation: [reason — or "Skipping: ..."]
- Database: [reason — or "Skipping: no database changes identified"]
- Correctness: [reason]
- Compatibility: [reason — or "Skipping: ..."]
- Portability: [reason — or "Skipping: ..."]
- Safety: [reason — or "Skipping: ..."]

Then use the AskUserQuestion tool to ask the user whether to proceed, with two options:

1. Yes, use the proposed lenses — run the review with the selected lenses
2. No, specify which lenses to use — adjust the selection before running

Wait for the user's answer before spawning reviewers. If they choose option 2, ask which lenses they want as a plain-text question only — do NOT use AskUserQuestion for this follow-up (the lens list is too large for the 4-option limit). Once confirmed, update the selection and re-present it using the same AskUserQuestion proceed/adjust pattern above.

Step 3: Spawn Review Agents

For each selected lens, spawn the {reviewer agent} agent with a prompt that includes paths to the lens skill and output format files. Do NOT read these files yourself — the agent reads them in its own context.

Compose each agent's prompt following this template:

You are reviewing an implementation plan through the [lens name] lens.

## Context

The implementation plan is at [path]. Read it fully.
Also read any files the plan references for additional context.

## Analysis Strategy

1. Read your lens skill and output format files (see paths below)
2. Read the implementation plan file fully
3. Identify the scope and complexity of the proposed changes
4. Explore the codebase to understand existing patterns and context
5. Evaluate the plan through your lens, applying each key question
6. Reference specific plan sections in your findings using the `location`
   field (e.g., "Phase 2: API Endpoints", "Testing Strategy section")

## Lens

Read the lens skill at the path listed in the Lens Catalogue table in the
review configuration above. If no review configuration is present, use:
${CLAUDE_PLUGIN_ROOT}/skills/review/lenses/[lens]-lens/SKILL.md

## Output Format

Read the output format at: ${CLAUDE_PLUGIN_ROOT}/skills/review/output-formats/plan-review-output-format/SKILL.md

IMPORTANT: Return your analysis as a single JSON code block. Do not include
prose outside the JSON block.

Spawn all selected agents in parallel using the Task tool with subagent_type: "!${CLAUDE_PLUGIN_ROOT}/scripts/config-read-agent-name.sh reviewer".

IMPORTANT: Wait for ALL review agents to complete before proceeding.

Handling malformed agent output:

If an agent's response is not a clean JSON block, apply this extraction strategy:

1. Look for a JSON code block fenced with triple backticks (optionally with a json language tag)
2. If found, extract and parse the content within the fences
3. If the extracted JSON is valid, use it normally
4. If no JSON code block is found, or the JSON within it is invalid, apply the fallback: treat the agent's entire output as a single finding with the agent's lens name and "major" severity, and include it in the review summary

When falling back, warn the user that the agent's output could not be parsed and present the raw agent output in a collapsed form so the user can see what the agent actually found.

Step 4: Aggregate and Curate Findings

Once all reviews are complete:

1. Parse agent outputs: Extract the JSON block from each agent's response (see the extraction strategy in Step 3). Collect the summary, strengths, and findings arrays from each.

2. Aggregate across agents:

   • Combine all findings arrays into a single list
   • Combine all strengths arrays into a single list
   • Collect all summary strings

3. Deduplicate findings: Where multiple agents flag overlapping plan sections with similar concerns, consider merging — but only when the findings address the same underlying concern from different lens perspectives. Location proximity alone is not sufficient; the findings must be semantically related.

   When merging:

   • Combine the bodies, attributing each part to its lens
   • Use the highest severity among the merged findings
   • Use the highest confidence among the merged findings
   • Note all contributing lenses in the title

   When in doubt, keep findings separate — distinct findings are easier to address individually than a merged finding covering multiple concerns.

4. Prioritise findings:

   • Sort by severity: critical > major > minor > suggestion
   • Within the same severity, sort by confidence: high > medium > low

5. Determine suggested verdict:

   If review configuration provides verdict overrides above, apply those thresholds instead of the defaults below:

   • If plan_revise_severity is none, skip the severity-based REVISE rule (major count rule still applies independently)
   • If any findings at or above the plan revise severity ({plan revise severity}) exist → suggest REVISE
   • If {plan revise major count} or more "major" findings exist → suggest REVISE
   • If fewer major findings than the threshold, or only minor/suggestion → suggest COMMENT
   • If no findings at all (only strengths) → suggest APPROVE

   Verdict meanings:

   • APPROVE — plan is sound and ready for implementation
   • REVISE — plan needs changes before implementation
   • COMMENT — observations only, plan is acceptable as-is

   When presenting a COMMENT verdict with major findings, note: "Plan is acceptable but could be improved — see major findings below."

6. Identify cross-cutting themes: Look for findings that appear across multiple lenses — issues flagged by 2+ agents reinforce each other and should be highlighted in the summary. Also identify tradeoffs where different lenses conflict (e.g., security wants more validation, usability wants less friction).

7. Compose the review summary:

   ## Plan Review: [Plan Name]
   
   **Verdict:** [APPROVE | REVISE | COMMENT]
   
   [Combined assessment: take each agent's summary and synthesise into 2-3
   sentences covering the overall quality of the plan across all lenses]
   
   ### Cross-Cutting Themes
   [Issues that multiple lenses identified — these deserve the most attention]
   - **[Theme]** (flagged by: [lenses]) — [description]
   
   ### Tradeoff Analysis
   [Where different lenses disagree, present both perspectives]
   - **[Quality A] vs [Quality B]**: [description and recommendation]
   
   [Omit either section if there are no cross-cutting themes or tradeoffs]
   
   ### Findings
   
   #### Critical
   - 🔴 **[Lens]**: [title]
     **Location**: [plan section]
     [First 1-2 sentences of body as summary]
   
   #### Major
   - 🟡 **[Lens]**: [title]
     **Location**: [plan section]
     [First 1-2 sentences of body as summary]
   
   #### Minor
   - 🔵 **[Lens]**: [title]
     **Location**: [plan section]
     [First 1-2 sentences of body as summary]
   
   #### Suggestions
   - 🔵 **[Lens]**: [title]
     **Location**: [plan section]
     [First 1-2 sentences of body as summary]
   
   ### Strengths
   - ✅ [Aggregated and deduplicated strengths from all agents]
   
   ### Recommended Changes
   [Ordered list of specific, actionable changes to the plan, prioritised by
   impact. Each should reference the finding(s) it addresses.]
   
   1. **[Change description]** (addresses: [finding titles])
      [Specific guidance on what to modify in the plan]
   
   ---
   *Review generated by /review-plan*
   

8. Write the review artifact to {plan reviews directory}/:

   Derive the review filename using the plan stem and the next available review number. The plan stem is the basename of the plan path without the .md extension. For example, if the plan is {plans directory}/2026-03-22-improve-error-handling.md and no prior reviews exist, the review filename is {plan reviews directory}/2026-03-22-improve-error-handling-review-1.md.

   To determine the next review number:

   mkdir -p {plan reviews directory}
   # Glob for existing reviews of this plan
   ls {plan reviews directory}/{plan-stem}-review-*.md 2>/dev/null
   # Extract the highest number, increment by 1. If none exist, use 1.
   

Populate frontmatter

The target: field is filled automatically from the $ARGUMENTS plan reference — this is what makes the review traceable back to the plan it covers. Per ADR-0034, the typed-linkage form is "plan:<plan-id>".

Before writing the plan review file, capture metadata and substitute the unified base fields and per-type extras into the template's frontmatter block:

1. Invoke ${CLAUDE_PLUGIN_ROOT}/scripts/artifact-derive-metadata.sh to obtain Current Date/Time (UTC):. Run the bare path directly as an executable; never prefix it with bash/sh/env (a wrapper prefix escapes the skill's allowed-tools permission and forces an unnecessary prompt).
2. Substitute every field below with the indicated value:
   • type: ← plan-review
   • id: ← the review filename stem (without .md), always quoted as a YAML string
   • title: ← Plan Review: {plan title}
   • date: ← the Current Date/Time (UTC): value
   • author: ← the author value resolved per create-work-item/SKILL.md:578-580
   • producer: ← review-plan
   • status: ← complete
   • last_updated: ← the same Current Date/Time (UTC): value
   • last_updated_by: ← the same value resolved for author
   • schema_version: ← 1 (bare integer, not quoted)
   • parent: ← typed-linkage ref to the parent plan ("plan:NNNN"). Fill when the review names a parent plan; otherwise omit the key.
   • target: ← "plan:<plan-id>" where <plan-id> is the plan filename stem (e.g. "plan:2026-05-30-0065-update-artifact-templates-to-unified-schema"); the typed-linkage ref to the plan under review, per ADR-0034. Always fill — every review has a target.
   • relates_to: ← list of typed-linkage refs to related reviews or artifacts (["plan-review:NNNN", ...]). Fill when prior reviews are explicit; otherwise omit the key.
   • reviewer: ← the reviewer value resolved per create-work-item/SKILL.md:578-580
   • verdict: ← the verdict from Step 4.5 (APPROVE | REVISE | COMMENT)
   • lenses: ← the list of lens names used (from Step 2)
   • review_number: ← N (the next available review number from the glob above)
   • review_pass: ← 1 (initial-write pass count; re-reviews bump per the Step 7 flow)
3. Write the file with the substituted frontmatter block, followed by the review summary composed in Step 4.7 and the per-lens results as a final section:

{The full review summary from Step 4.7}

## Per-Lens Results

### {Lens 1 Name}

**Summary**: {agent summary}

**Strengths**:
{agent strengths}

**Findings**:
{agent findings — each with severity, confidence, location, and body}

### {Lens 2 Name}

...

The per-lens results section contains the full content from each agent's JSON output, converted to readable markdown. This preserves the complete analysis for future reference while keeping it human-readable.

Step 5: Present the Review

Present the composed review summary from Step 4.7 to the user.

After presenting, offer the user control before proceeding to iteration:

The review is complete. Verdict: [verdict]

Would you like to:
1. Proceed to address findings? (I'll help edit the plan)
2. Change the verdict? (currently: [verdict])
3. Discuss any specific findings in more detail?
4. Re-run specific lenses with adjusted focus?

Step 6: Collaborative Plan Iteration

After presenting the review:

1. Discuss findings with the user:

• Ask which recommendations they want to address
• Discuss any tradeoffs where they need to make a judgment call
• Clarify any findings that need more context

2. Edit the plan based on agreed changes:

• Use the Edit tool to modify the plan file directly
• Make changes incrementally — one finding at a time or in logical groups
• Preserve the plan's existing structure and conventions
• Don't rewrite sections unnecessarily — make targeted edits

3. Summarise changes made:

   I've made the following changes to the plan:
   - [Change 1] — addressing [finding]
   - [Change 2] — addressing [finding]
   - [Skipped] — [finding you discussed and decided not to address, with reason]
   

Step 7: Offer Re-Review

After edits are complete:

The plan has been updated. Would you like me to run another review pass to
verify the changes address the findings? This will re-run the relevant lenses
to check for any remaining issues or new concerns introduced by the edits.

If the user accepts:

• Re-run only the lenses that had findings in the previous pass
• Use the same spawn pattern and JSON extraction strategy from Steps 3-4
• Compare previous findings against new findings (by title + lens) to determine resolution status
• Focus the review on whether findings were addressed and whether edits introduced new issues
• Present a shorter, delta-focused review:

  ## Re-Review: [Plan Name]
  
  **Verdict:** [APPROVE | REVISE | COMMENT]
  
  ### Previously Identified Issues
  - [emoji] **[Lens]**: [title] — Resolved / Partially resolved / Still present
  - ...
  
  ### New Issues Introduced
  - [emoji] **[Lens]**: [title] — [brief description]
  
  ### Assessment
  [Whether the plan is now in good shape or needs further iteration]
  

After composing the re-review summary, update the review artifact as a single write operation:

1. Read the full content of the existing review document at {plan reviews directory}/{plan-stem}-review-{N}.md

2. In memory, update exactly four frontmatter fields — verdict, review_pass, last_updated, and last_updated_by — preserving all other fields and body content verbatim. The date field retains the original-review timestamp; only last_updated advances on re-review. (last_updated_by may match reviewer if the re-reviewer is the same person, but is computed independently to handle the cross-reviewer case.)

   Pre-0066-artifact handling: when the re-reviewed artifact lacks last_updated: and/or last_updated_by: (it was written pre-0066), insert those fields rather than treating their absence as malformed-frontmatter. Only an unparseable YAML block or missing --- delimiters triggers the fresh--review-{N+1}.md fallback.

3. Append the re-review section at the end of the content (after the Per-Lens Results section)

4. Write the complete modified content back to the same file in one operation

The frontmatter's verdict and review_pass fields reflect the latest re-review state (not the initial review state), so readers can check the current status without scrolling:

## Re-Review (Pass {N}) — {date}

**Verdict:** {verdict}

### Previously Identified Issues
- {emoji} **{Lens}**: {title} — {Resolved | Partially resolved | Still present}
- ...

### New Issues Introduced
- {emoji} **{Lens}**: {title} — {brief description}

### Assessment
{Whether the plan is now in good shape or needs further iteration}

The document reads chronologically: initial review, per-lens results, then re-review sections in order. The frontmatter always reflects the latest verdict and pass count.

If the user declines or the re-review shows all clear, the review is complete.

Important Guidelines

1. Read the plan fully before doing anything else — you need complete context to select lenses and brief the agents properly

2. Spawn agents in parallel — the review lenses are independent and should run concurrently for efficiency

3. Synthesise, don't concatenate — your value is in compiling a balanced view across lenses, identifying themes and tradeoffs, and prioritising actionable recommendations. Don't just paste seven reports together.

4. Be balanced — highlight strengths alongside concerns. A plan that makes good architectural decisions but has security gaps should get credit for both.

5. Prioritise by impact — structural issues that are hard to fix later matter more than surface-level concerns. A critical finding from one lens outweighs minor findings from all seven.

6. Respect tradeoffs — when lenses conflict, present both sides and let the user decide. Don't privilege one quality attribute over another without justification.

7. Edit conservatively — when modifying the plan, make the minimum changes needed to address findings. Don't restructure or rewrite beyond what's required.

8. Track what was addressed — when presenting changes, clearly map them back to findings so nothing falls through the cracks.

9. Handle malformed agent output gracefully — if an agent doesn't return valid JSON, extract what you can and present the raw output to the user rather than silently dropping findings

10. Keep positive feedback in the summary — strengths go in the review summary, not as individual findings. Findings are exclusively for actionable concerns.

11. Use emoji severity prefixes consistently — 🔴 critical, 🟡 major, 🔵 minor/suggestion, ✅ strengths. IMPORTANT: Use the actual Unicode emoji characters (🔴 🟡 🔵 ✅), NOT text shortcodes like :red_circle:, :yellow_circle:, :blue_circle:, or :white_check_mark:. Shortcodes are not rendered in markdown and will appear as literal text.

What NOT to Do

• Don't skip writing the review artifact — always persist to {plan reviews directory}/ so the review is visible to the team
• Don't skip the lens selection step — always confirm with the user which lenses will run
• Don't present raw agent output — always aggregate and curate into the structured format
• Don't make plan edits without user agreement
• Don't force all findings to be addressed — some may be intentionally accepted tradeoffs
• Don't run lenses that clearly aren't relevant — a documentation plan doesn't need a security review
• Don't post findings as individual items for positive feedback — strengths go in the summary only
• Don't skip the verdict — always include a suggested verdict based on finding severity

Relationship to Other Commands

The review sits in the plan lifecycle between creation and implementation:

1. /create-plan — Create the implementation plan interactively
2. /review-plan — Review and iterate the plan quality (this command)
3. /implement-plan — Execute the approved plan
4. /validate-plan — Verify implementation matches the plan

!${CLAUDE_PLUGIN_ROOT}/scripts/config-read-skill-instructions.sh review-plan