Imported from ComeOnOliver/skillshub (skills/aiskillstore/marketplace/cygnusfear/check-plan/SKILL.md). Install upstream with npx skills add ComeOnOliver/skillshub --skill check-plan. Copyright stays with the author.

Check Plan Implementation

Instructions

Perform comprehensive audit of implementation progress against a plan, verify quality of completed work, and generate actionable task list for remaining items.

Phase 1: Setup & Discovery

Step 1: Identify the Plan

Ask user which plan to check (or identify from context)
Read the plan file from .plans/
Understand all plan items and requirements

Step 2: Get Git Context (if applicable)

# See what files changed
git status

# See detailed changes
git diff

# See commit history on this branch
git log --oneline -20

This helps understand scope of changes made.

Step 3: Identify All Affected Files

Create comprehensive list:

Files mentioned in the plan
Files shown in git status
Files that might be affected (use Glob/Grep)

Create todo list with one item per file to check.

Phase 2: Systematic File-by-File Audit

For EACH file in the todo list:

Step 1: Read the File

Use Read tool to examine current state
Check memory/context for any previous notes about this file

Step 2: Map to Plan Items

Identify which plan step(s) relate to this file:

Which implementation steps mention this file?
What changes were supposed to be made?
What requirements from the plan apply here?

Step 3: Verify Implementation

Check if planned changes are present:

✅ DONE: Implementation matches plan requirements
⚠️ PARTIAL: Some work done, but incomplete
❌ NOT DONE: No implementation yet
🔍 NEEDS REVIEW: Implementation exists but may not match plan

For each file, assess:

Are planned features implemented?
Is code quality good?
Are types used correctly (no any)?
Does it follow CLAUDE.md guidelines?
Is it complete or partial?

Step 4: Quality Verification

Check implementation quality:

Correctness: Does it work as planned?
Types: Proper typing, no any, using existing types?
Naming: Follows conventions from plan?
Architecture: Matches planned design?
Completeness: All details from plan step implemented?

Step 5: Record Assessment

Store in memory:

File: path/to/file.ts
Plan Item: Step X - [description]
Status: [DONE|PARTIAL|NOT DONE|NEEDS REVIEW]
Notes: [What's good, what's missing, what needs fixing]
Quality Issues: [Any problems found]

Step 6: Update Todo

Mark file as checked in the todo list.

Phase 3: REMOVAL SPEC Verification

CRITICAL: Verify old code was actually removed.

Step 1: Read REMOVAL SPEC from Plan

Extract all items listed for removal:

Code to be removed (with file/line numbers)
Files to be deleted
Deprecated functions to eliminate

Step 2: Verify Each Removal

For each item in REMOVAL SPEC:

For code to remove:
```
# Check if old code still exists
grep -n "old_function_name" path/to/file.ts
```
- ✅ If not found: Code successfully removed
- ❌ If found: Code still exists (NOT DONE)
For files to delete:
```
# Check if file still exists
ls path/to/old-file.ts
```
- ✅ If not found: File successfully deleted
- ❌ If found: File still exists (NOT DONE)
For deprecated imports/references:
```
# Search entire codebase
grep -r "old_symbol" src/
```
- ✅ If not found: All references removed
- ❌ If found: References still exist (NOT DONE)

Step 3: Record Removal Status

List what was supposed to be removed
List what actually was removed
Flag any items not removed as HIGH PRIORITY tasks

Phase 3.5: Original Issue/Task Coverage Verification (MANDATORY)

CRITICAL: Verify that the implementation covers 100% of the ORIGINAL issue/task requirements, not just the plan steps.

Step 1: Locate Original Issue/Task

Find the source requirement:

GitHub issue that triggered this plan: gh issue view <number>
Original task description or ticket
User request that initiated the work

Step 2: Extract ALL Original Requirements

From the original issue/task, extract:

Every functional requirement
Every acceptance criterion
Every edge case mentioned
Every error handling requirement
Any implicit requirements

Step 3: Map Requirements to Implementation

#	Original Requirement	Plan Step	Implementation Status
1	[from issue]	Step X	✅/❌/⚠️
2	[from issue]	Step Y	✅/❌/⚠️
3	[from issue]	N/A (missing from plan!)	❌

Step 4: Identify Coverage Gaps

Two types of gaps:

Plan gaps: Requirements from issue that weren't captured in plan
Implementation gaps: Plan steps that weren't fully implemented

Both count toward incomplete coverage.

Step 5: Coverage Assessment

Issue Coverage = (Implemented Original Requirements / Total Original Requirements) × 100%

Anything less than 100% = PLAN NOT COMPLETE

Phase 4: Gap Analysis

Step 1: Identify Scope Creep

Files changed that are NOT in the plan:

Why were they changed?
Were changes necessary?
Should plan be updated to reflect them?

Step 2: Identify Missing Work

Plan items without corresponding implementation:

Which steps haven't been started?
Which steps are partially complete?
What's blocking completion?

Step 3: Identify Issue Coverage Gaps (HIGH PRIORITY)

Requirements from original issue not in implementation:

Which issue requirements are missing?
Were they missed in planning or implementation?
These are HIGHER PRIORITY than plan step completion

Phase 5: Build Progress Report

Step 1: Calculate Completion Percentage

Total Plan Steps: X
Completed Steps: Y
Partial Steps: Z
Not Started: W

Completion: (Y / X) * 100%
Weighted Completion: ((Y + 0.5*Z) / X) * 100%

Step 2: Generate Structured Report

Create report at .plans/[plan-name].progress.md:

# Plan Progress Report: [Plan Name]
**Date**: [timestamp]
**Plan File**: [path]
**Status**: [In Progress | Ready for Review | Completed]

---

## Summary
- **Overall Completion**: X%
- **Steps Complete**: Y / Total
- **Steps Partial**: Z
- **Steps Not Started**: W
- **Critical Issues**: N

---

## Progress by Plan Step

### ✅ Step 1: [Description]
**Status**: DONE
**Files**: [list]
**Notes**: [Any relevant notes]

### ⚠️ Step 2: [Description]
**Status**: PARTIAL (60% complete)
**Files**: [list]
**Completed**:
- [What's done]
**Remaining**:
- [What's not done]
**Issues**: [Any problems]

### ❌ Step 3: [Description]
**Status**: NOT DONE
**Blocking**: [What's blocking this]

---

## REMOVAL SPEC Status

### ✅ Completed Removals
- `old_function` from `file.ts` - Successfully removed
- `old-file.ts` - Successfully deleted

### ❌ Pending Removals (HIGH PRIORITY)
- `legacy_code` from `file.ts:lines 50-100` - **STILL EXISTS**
- `deprecated-helper.ts` - **FILE STILL EXISTS**

**Critical**: Old code must be removed before plan can be marked complete.

---

## Quality Assessment

### Passed
- ✅ TypeScript types used correctly
- ✅ CLAUDE.md naming conventions followed
- ✅ Architecture matches plan

### Issues Found
- ⚠️ `any` type used in `file.ts:42` (should use existing type)
- ⚠️ Missing error handling in step 5 implementation

---

## Files Changed

### Planned Changes (from plan)
- ✅ `path/to/file1.ts` - DONE
- ⚠️ `path/to/file2.ts` - PARTIAL
- ❌ `path/to/file3.ts` - NOT DONE

### Unplanned Changes (scope creep)
- `path/to/unexpected.ts` - Why: [reason]

---

## Remaining Work

### High Priority
1. **Remove old code** (REMOVAL SPEC items)
   - [ ] Remove `legacy_code` from `file.ts`
   - [ ] Delete `deprecated-helper.ts`

2. **Complete Step 3**
   - [ ] Implement [specific requirement]
   - [ ] Add proper types

### Medium Priority
3. **Fix quality issues**
   - [ ] Replace `any` in `file.ts:42`
   - [ ] Add error handling in step 5

### Low Priority
4. **Polish**
   - [ ] [Minor improvements]

---

## Validation Status

### Pre-Validation
- [ ] All plan steps completed
- [ ] All REMOVAL SPEC items removed
- [ ] TypeScript compiles
- [ ] Linting passes
- [ ] No `any` types added

**Ready for Final Validation**: NO (pending items remain)

---

## Next Steps

1. Complete REMOVAL SPEC items (remove old code)
2. Finish Step 3 implementation
3. Fix quality issues
4. Run validation checks
5. Update plan status when 100% complete

Phase 6: Validation Checks

Step 1: Run TypeScript Check

# Run type checking
npm run typecheck
# or
tsc --noEmit

Record results:

✅ Passes: Good to go
❌ Errors: List errors, add to remaining work

Step 2: Run Linting

# Run linter
npm run lint
# or
eslint .