intent-layer-maintenance

name	intent-layer-maintenance
description	Use when maintaining an existing Intent Layer, during quarterly reviews, after significant code changes, when something confused you, or when user asks to audit/update CLAUDE.md or AGENTS.md files.
argument-hint	[/path/to/project] [--post-incident | --post-refactor | --quarterly]

Intent Layer Maintenance

Run the maintenance flywheel for projects with an existing Intent Layer.

Prerequisites

• Project must have Intent Layer state = complete
• Run intent-layer skill first if state is none or partial

Workflow

digraph maintenance {
  rankdir=TB;

  "Start" [shape=ellipse];
  "Verify state=complete" [shape=box];
  "State complete?" [shape=diamond];
  "Run intent-layer skill" [shape=box];
  "Measure token growth" [shape=box];
  "Any >20k threshold?" [shape=diamond];
  "Flag child node candidates" [shape=box];
  "Ask pain point questions" [shape=box];
  "Map findings to sections" [shape=box];
  "Present update proposal" [shape=box];
  "User approves?" [shape=diamond];
  "Apply updates" [shape=box];
  "Done" [shape=ellipse];

  "Start" -> "Verify state=complete";
  "Verify state=complete" -> "State complete?" ;
  "State complete?" -> "Run intent-layer skill" [label="no"];
  "State complete?" -> "Measure token growth" [label="yes"];
  "Run intent-layer skill" -> "Done";
  "Measure token growth" -> "Any >20k threshold?";
  "Any >20k threshold?" -> "Flag child node candidates" [label="yes"];
  "Any >20k threshold?" -> "Ask pain point questions" [label="no"];
  "Flag child node candidates" -> "Ask pain point questions";
  "Ask pain point questions" -> "Map findings to sections";
  "Map findings to sections" -> "Present update proposal";
  "Present update proposal" -> "User approves?";
  "User approves?" -> "Apply updates" [label="yes"];
  "User approves?" -> "Done" [label="no"];
  "Apply updates" -> "Done";
}

Step 1: Verify State

# From intent-layer skill
scripts/detect_state.sh /path/to/project

If state is not complete, redirect to intent-layer skill for initial setup.

Step 2: Measure Token Growth

Use the consolidated measurement script to analyze all candidates at once:

# Recommended: Auto-discover and measure all candidates
scripts/estimate_all_candidates.sh /path/to/project

# Or measure individual directories manually:
scripts/estimate_tokens.sh /path/to/project/src
scripts/estimate_tokens.sh /path/to/project/lib

Thresholds:

• Directory >20k tokens → candidate for child AGENTS.md
• Directory grew >50% since last audit → review coverage

Step 3: Ask Pain Point Questions

Generate a structured template to capture findings:

scripts/capture_pain_points.sh pain_points.md
# Then fill in the generated template

These questions surface tribal knowledge that should be documented:

Recent Pitfalls (distinct from Anti-patterns)

• "What surprised you in the last 3 months?"
• "What looked deprecated/unused but actually wasn't?"
• "What broke silently when someone made a reasonable assumption?"
• "What implicit assumption bit someone?"

Contract Violations

• "Did any invariant get violated? Should we document it?"
• "Did external consumers break because of API changes?"
• "Are there new 'must never happen' rules?"

Architecture Changes

• "Were any significant technical decisions made?"
• "Should we link to new ADRs or design docs?"
• "Did subsystem boundaries shift?"

Entry Point Changes

• "Are there new common tasks that need routing?"
• "Did any entry points move or get renamed?"

Step 4: Map Findings to Sections

Finding Type	Target Section
Surprising behavior	Pitfalls
"Never do X" rule	Anti-patterns
Must-be-true constraint	Contracts & Invariants
Technical decision rationale	Architecture Decisions
New common task	Entry Points
New subsystem	Subsystem Boundaries
Relationship to external	Related Context
New/moved child node	Downlinks
Changed parent/sibling	Navigation

Step 5: Present Update Proposal

Show user exactly what will change:

## Proposed Updates to CLAUDE.md

### Pitfalls (adding 2)
+ `config/legacy.json` looks unused but controls feature flags for enterprise clients
+ Running `make clean` deletes cached auth tokens - must re-authenticate

### Contracts (adding 1)
+ API v2 endpoints require `X-Request-ID` header (enforced by gateway, not code)

### No changes needed
- Anti-patterns
- Architecture Decisions
- Entry Points

Step 6: Apply Updates (if approved)

Edit the CLAUDE.md file to add new items to appropriate sections.

Validation after update:

• Node still <4k tokens
• No duplication with ancestor nodes
• Relative paths for internal links
• Downlinks point to existing child nodes
• Navigation links (parent/siblings) are accurate

Quick Reference

Audit Type	Focus
Quarterly review	Full: tokens + all question categories
Post-incident	Pitfalls + Contracts that were violated
After refactor	Entry Points + Subsystem Boundaries
After new feature	Architecture Decisions + Patterns

Common Mistakes

Mistake	Fix
Conflating Pitfalls with Anti-patterns	Pitfalls = surprising truth. Anti-patterns = things to avoid.
Adding every small finding	Only add if it would confuse future agents/engineers
Not measuring before asking	Always measure first - growth data informs questions
Updating without proposal	Show changes, get approval, then apply

On Merge/PR: Detect Affected Nodes

When code changes (e.g., after merge), identify which Intent Nodes need review:

scripts/detect_changes.sh main HEAD

This outputs affected nodes in leaf-first order. Check each for behavior changes.

---

Parallel Audit (Large Intent Layers)

For Intent Layers with 4+ nodes, use parallel subagents to speed up audits.

When to Use Parallel Audit

Node Count	Approach
1-3 nodes	Sequential (standard workflow)
4-8 nodes	Parallel validation + gap detection
9+ nodes	Full parallel mode

Parallel Validation

Validate all nodes simultaneously with multiple Task calls in a single message:

Task 1 (Explore): "Validate CLAUDE.md against the codebase. Check:
                   - Are Entry Points still accurate?
                   - Are Contracts still enforced?
                   - Are Pitfalls still relevant?
                   - Any new patterns not documented?
                   Return: list of stale items + missing items"

Task 2 (Explore): "Validate src/api/AGENTS.md against src/api/. Check:
                   - Are Entry Points still accurate?
                   - Are Contracts still enforced?
                   - Are Pitfalls still relevant?
                   Return: list of stale items + missing items"

Task 3 (Explore): "Validate src/core/AGENTS.md against src/core/. Check:
                   [same questions]"

Parallel Gap Detection

Find undocumented areas across the codebase:

Task 1 (Explore): "Search for error handling patterns in src/. Find:
                   - try/catch patterns that aren't documented
                   - Silent failures that should be Pitfalls
                   - Error contracts not in any AGENTS.md"

Task 2 (Explore): "Search for API contracts in src/. Find:
                   - Input validation rules not documented
                   - Response shapes not in Contracts
                   - Auth/permissions not documented"

Task 3 (Explore): "Search for integration points in src/. Find:
                   - External service calls
                   - Database access patterns
                   - Message queue usage
                   Check if documented in nearest AGENTS.md"

Parallel Post-Incident Review

After an incident, audit relevant nodes in parallel:

Task 1 (Explore): "Review [incident area] for Pitfalls. Find:
                   - What assumption was violated?
                   - What would have prevented this?
                   - What should be added to Pitfalls?"

Task 2 (Explore): "Review [incident area] for Contract gaps. Find:
                   - What invariant was broken?
                   - What constraint should be documented?
                   - What boundary was crossed?"

Synthesizing Parallel Results

After parallel agents complete:

1. Collect all findings into a unified list
2. Deduplicate items found by multiple agents
3. Categorize by target section (Pitfalls, Contracts, Entry Points)
4. Prioritize by impact (incident-related > gaps > stale items)
5. Present proposal to user for approval

Parallel Audit Benefits

Metric	Sequential	Parallel
5-node audit	~20 min	~7 min
10-node audit	~40 min	~10 min
Coverage consistency	Variable	Uniform

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Agent-Driven Capture (Alternative)

For complex areas where template-based capture (capture_pain_points.sh) feels insufficient, use agent-driven capture:

1. Agent examines code, proposes descriptions, asks questions
2. Human corrects, answers, adds historical context
3. Iterate until description matches mental model

See references/capture-workflow-agent.md for the full three-phase process.

Use scripts/capture_state.sh to generate a tracking template for open questions during capture.

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Scripts Location

This skill uses scripts from the intent-layer skill:

Script	Purpose
detect_state.sh	Check state (none/partial/complete)
estimate_tokens.sh	Measure single directory
estimate_all_candidates.sh	Measure all candidates at once
capture_pain_points.sh	Generate pain points template
capture_state.sh	Track open questions during capture
detect_changes.sh	Find affected nodes on merge/PR
analyze_structure.sh	Find semantic boundaries
validate_node.sh	Check node quality after updates

References:

• references/templates.md - Templates (S/M/L), three-tier boundaries
• references/compression-techniques.md - Compression techniques, LCA placement, parent node compression
• references/capture-workflow-agent.md - Agent-driven capture workflow
• references/agent-feedback-protocol.md - How agents surface missing context

All paths: ${CLAUDE_PLUGIN_ROOT}/