# Changelog

All notable changes to this project will be documented in this file.

The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).

## [4.0.0] - 2026-04-19

### Summary
Opus 4.7 era upgrade. New TOK scanner detects token-efficiency anti-patterns (cache-breaking volatile content, redundant tool permissions, deep import chains, sonnet-era minimal setups). Token Efficiency joins the quality scorecard as the 8th area. Scanner-agent and verifier-agent migrate from haiku → sonnet per global no-haiku policy.

### Added
- **`token-hotspots.mjs`** scanner (CA-TOK-001..004) — 4 patterns aligned with Opus 4.7 token-cost dynamics:
  - CA-TOK-001 cache-breaking volatile content (timestamps/UUIDs in top 30 lines of CLAUDE.md)
  - CA-TOK-002 redundant tool permissions (duplicate or subset overlaps)
  - CA-TOK-003 deep @import chains (>2 hops on the load path)
  - CA-TOK-004 sonnet-era minimal setup (no skills/MCP/hooks/managed/plugins)
- **`/config-audit tokens [path] [--global]`** — ranked hotspot table + per-pattern findings.
- **`scanners/token-hotspots-cli.mjs`** — standalone CLI emitting `total_estimated_tokens`, `hotspots`, and per-finding output.
- **Token Efficiency** as the 8th quality area in the posture scorecard (now 9 scanners total: CML/SET/HKV/RUL/MCP/IMP/CNF/GAP/TOK).
- `id` field on every area in the scorecard payload (`token_efficiency`, `instruction_clarity`, etc.) for stable downstream lookup.
- 13 new TOK scanner tests + 3 CLI tests + posture grade-stability test for `token_efficiency`.
- Knowledge refresh: `knowledge/opus-4.7-patterns.md`, plus 2026-04 deltas (v2.1.83–v2.1.111) added to `feature-evolution.md`, `claude-code-capabilities.md`, and `hook-events-reference.md` from `research/03-claude-code-changes-config-surfaces.md`.

### Changed
- **BREAKING (additive surface):** Quality areas count 7 → 8. Posture JSON consumers that hard-coded 7 areas must update.
- **BREAKING (model migration):** `scanner-agent` and `verifier-agent` migrated `haiku` → `sonnet`. Latency and cost trade-offs accepted; deterministic scanner CLIs preferred over agent invocations.
- Scanner count: 8 → 9 (TOK added).
- Command count: 16 → 17 (`/config-audit tokens` added).
- Version bump: `3.1.0` → `4.0.0`.

## [3.1.0] - 2026-04-14

### Summary
New read-only command `/config-audit whats-active` — shows exactly what Claude Code loads for a given repo, with token estimates.

### Added
- **`/config-audit whats-active [path]`** — inventory of active plugins, skills, MCP servers, hooks, and CLAUDE.md cascade for a repo, with source attribution (user/project/plugin) and rough token estimates. Read-only, <2s.
- `scanners/lib/active-config-reader.mjs` — pure async helper: `readActiveConfig()`, `detectGitRoot()`, `walkClaudeMdCascade()`, `readClaudeJsonProjectSlice()` (longest-prefix matching), `enumeratePlugins()`, `enumerateSkills()`, `readActiveHooks()`, `readActiveMcpServers()`, `estimateTokens()`.
- `scanners/whats-active.mjs` — thin CLI shim supporting `--json`, `--output-file`, `--verbose`, `--suggest-disables`.
- Optional `--suggest-disables` flag surfaces deterministic disable candidates (disabled MCP servers, zero-item plugins, unreferenced plugins, orphan skills) and invites an LLM judgment pass in the command.
- 36 new tests in `tests/lib/active-config-reader.test.mjs`, plus a `rich-repo` tmpdir fixture helper.

### Changed
- Version bump: `3.0.1` → `3.1.0` (minor, additive feature, no breaking changes).
- Command count: 15 → 16.

## [3.0.1] - 2026-04-04

### Summary
Cross-platform fix — scanners, hooks, and lib now work correctly on Windows.

### Fixed
- `file-discovery.mjs`: depth calculation, agent/command/plugin path matching now use `path.sep`
- `scan-orchestrator.mjs`: fixture-path filtering now uses `path.sep`
- `post-edit-verify.mjs`: rules-dir regex handles both `/` and `\` separators
- `auto-backup-config.mjs`: rules-dir detection now uses `path.sep`
- `import-resolver.mjs`: circular import display uses `basename()`, `/tmp` fallback replaced with `os.tmpdir()`
- `string-utils.mjs`: `normalizePath` trailing separator regex handles both `/` and `\`

### Added
- 4 cross-platform path tests (total 486 tests)

## [3.0.0] - 2026-04-04

### Summary
Health redesign — configuration health is now quality-only. Feature utilization removed from grades entirely.

### Changed
- **Health = quality only.** 7 deterministic scanners (CML, SET, HKV, RUL, MCP, IMP, CNF) determine your grade. Feature Coverage is no longer a graded area.
- **Feature recommendations are opt-in.** Unused features shown as "opportunities" via `/config-audit feature-gap`, grouped by impact (high/medium/explore), backed by Anthropic docs. No more "Feature Coverage: F" for correct minimal setups.
- **Posture output redesigned.** Shows `Health: {grade} ({score}/100)` with 7 quality areas. Removed utilization %, maturity level, segment label.
- **Feature-gap is interactive.** Users select recommendations to implement directly — no manual file editing required. Backup created automatically.
- **avgScore bug fixed.** Grade letter and displayed score now computed from the same population (quality areas only).

### Added
- `generateHealthScorecard()` in scoring.mjs — quality-only scorecard
- `opportunitySummary()` in feature-gap-scanner.mjs — groups findings by impact tier
- `opportunityCount` field in posture JSON output
- "Official Configuration Guidance" section in knowledge base (Anthropic docs, proven impacts)
- 21 new tests (total 482 across 27 test files)

### Removed
- `S2-PROMPT.md` and `V2-ANNOUNCEMENT.md` — v2 development artifacts
- Utilization %, maturity level, segment label from posture terminal output and reports
- Feature Coverage row from area breakdown tables
- "Top Actions" sourced from GAP findings (replaced by opportunities pointer)

### Backward Compatibility
- JSON output preserves all legacy fields (utilization, maturity, segment) for programmatic consumers
- Drift baselines unaffected — GAP findings still present in envelopes
- All existing exports maintained (calculateUtilization, determineMaturityLevel, etc.)

## [2.2.0] - 2026-04-04

### Summary
UX quality fix — fixture filtering, session path migration, output polish.

### Added
- Automatic test-fixture filtering in scan-orchestrator: findings from `tests/`, `examples/`, `__tests__/` excluded from grades, stored in `env.fixture_findings`
- `--include-fixtures` CLI flag for scan-orchestrator and posture to override filtering
- `scan-orchestrator.test.mjs` — 20 new tests for fixture filtering and `isFixturePath`
- Legacy session path detection in cleanup command

### Changed
- Session storage moved from `~/.config-audit/` to `~/.claude/config-audit/` (pathguard compatible)
- Self-audit grade: F → A (98) after fixture filtering
- Combined scanner + posture into single Bash call in default audit command
- Removed "F grade is misleading" disclaimer — grades are now accurate
- All CLI banners and envelope metadata updated to v2.2.0
- 461 tests (up from 441), 27 test files (up from 26)

### Removed
- Manual fixture counting instruction in `config-audit.md` (orchestrator handles it)
- Redundant `isFixtureOrExample` filter in `self-audit.mjs` (promoted to orchestrator)

## [2.1.0] - 2026-04-03

### Summary
UX redesign — auto-scope detection, zero questions, simplified command surface.

### Changed
- `/config-audit` now runs full audit automatically (auto-detects scope from git context)
- Removed mode selection prompts — scope override via `/config-audit full|repo|home|current`
- Simplified from 17 to 15 commands (removed quick, report, watch; added help)
- All CLI banners and envelope metadata updated to v2.1.0

### Added
- `/config-audit help` command with categorized command reference
- Auto-scope detection from git context (repo vs home vs full-machine)

### Removed
- `/config-audit:quick` (merged into default `/config-audit`)
- `/config-audit:report` (merged into analyze output)
- `/config-audit:watch` (use `/config-audit drift` instead)

## [2.0.0] - 2026-04-03 (v2.0 Complete)

### Summary
Complete rewrite from LLM-only prototype to deterministic scanner-backed configuration intelligence.
7 development sessions (S1-S7), ~15,000 lines of code, 408+ tests.

### Highlights
- 8 deterministic scanners (CML, SET, HKV, RUL, MCP, IMP, CNF, GAP) + PLH standalone
- Feature gap analysis with 25 dimensions across 4 tiers
- Auto-fix engine with 9 fix types + backup/rollback
- Drift detection with baseline comparison
- Suppression engine (.config-audit-ignore)
- Self-audit CLI
- 17 commands, 6 agents, 4 hooks
- 408+ tests (zero external dependencies)

### Added (S7)
- Example projects: `examples/minimal-setup/` and `examples/optimal-setup/`
- Demo script: `examples/run-demo.sh`
- `.config-audit-ignore` for self-audit suppressions
- `V2-ANNOUNCEMENT.md`
- `DEPRECATED.md` for capability-auditor skill

### Fixed (S7)
- `hooks.json`: SessionStart and Stop timeout 5ms → 5000ms
- `self-audit.mjs`: Suppression now enabled (was hardcoded to `suppress: false`)

### Changed (S7)
- README.md: Complete rewrite for public release
- CLAUDE.md: Added Suppressions section
- `.gitignore`: Added `node_modules/` and `S*-PROMPT.md`

## [1.6.0] - 2026-04-03 (v2.0 S6: Unified Reports + Self-Audit + Suppressions)

### Added
- **Report generator** `scanners/lib/report-generator.mjs` — unified markdown reports: generatePostureReport(), generateDriftReport(), generatePluginHealthReport(), generateFullReport()
- **Suppression engine** `scanners/lib/suppression.mjs` — `.config-audit-ignore` file support with exact IDs and glob patterns (CA-SET-*), audit trail via `suppressed_findings` in envelope
- **Self-audit CLI** `scanners/self-audit.mjs` — runs all scanners + plugin health on this plugin: `node self-audit.mjs [--json] [--fix]`, exit codes 0/1/2
- **PostToolUse hook** `post-edit-verify.mjs` — verifies config files after Edit/Write, blocks if new critical/high findings introduced
- **New command**: `/config-audit:report` — generate unified report (posture + optional drift/plugin-health)
- **Test fixture** `.config-audit-ignore` in fixable-project
- 54 new tests (total 408 across 25 test files)

### Changed
- `scan-orchestrator.mjs`: suppression integration — applies .config-audit-ignore after all scanners run, `--no-suppress` flag to disable
- `hooks.json`: added PostToolUse event with post-edit-verify

## [1.5.0] - 2026-04-03 (v2.0 S5: Drift + Watch + Plugin Health)

### Added
- **Diff engine** `scanners/lib/diff-engine.mjs` — diffEnvelopes() comparing baseline vs current, formatDiffReport() for terminal output
- **Baseline manager** `scanners/lib/baseline.mjs` — save/load/list/delete named baselines in ~/.claude/config-audit/baselines/
- **Drift CLI** `scanners/drift-cli.mjs` — standalone: `node drift-cli.mjs <path> [--save] [--baseline name] [--json] [--list]`
- **Plugin health scanner** `scanners/plugin-health-scanner.mjs` (PLH) — validates plugin structure, frontmatter, cross-plugin conflicts (runs independently, not in scan-orchestrator)
- **3 new commands**:
  - `/config-audit:drift` — compare current config against saved baseline
  - `/config-audit:watch` — on-demand drift check with baseline monitoring
  - `/config-audit:plugin-health` — audit plugin structure and cross-plugin coherence
- **Test fixtures** `test-plugin/` (valid) and `broken-plugin/` (invalid) for plugin health tests
- 48 new tests (total 354 across 21 test files)

## [1.4.0] - 2026-04-03 (v2.0 S4: Fix + Rollback Action Pillar)

### Added
- **Fix engine** `scanners/fix-engine.mjs` — deterministic auto-fix for 9 fix types:
  - `json-key-add` (missing $schema), `json-key-remove` (deprecated keys), `json-key-type-fix` (type mismatches, invalid effortLevel), `json-restructure` (hooks array→object, matcher object→string), `frontmatter-rename` (globs→paths), `file-rename` (non-.md→.md)
- **Rollback engine** `scanners/rollback-engine.mjs` — listBackups(), restoreBackup(), deleteBackup() with checksum verification
- **Fix CLI** `scanners/fix-cli.mjs` — standalone: `node fix-cli.mjs <path> [--apply] [--json] [--global]`, dry-run by default
- **Backup lib** `scanners/lib/backup.mjs` — shared backup module with checksums and manifests
- **2 new commands**:
  - `/config-audit:fix` — scan, plan, backup, apply, verify in one flow
  - `/config-audit:rollback` — list or restore from backups
- **PreToolUse hook** `auto-backup-config.mjs` — auto-backup config files before Edit/Write
- **Test fixture** `fixable-project/` — fixture with all 9 fixable issue types
- 38 new tests (total 306 across 17 test files)

### Changed
- `file-discovery.mjs`: walkRulesDir now discovers all files (not just .md) for non-.md validation
- `backup-before-change.mjs`: refactored to use shared `lib/backup.mjs` (no logic duplication)
- hooks.json: added PreToolUse event with auto-backup

## [1.3.0] - 2026-04-03 (v2.0 S3: Posture + Feature Gap Commands)

### Added
- **Scoring module** `scanners/lib/scoring.mjs` — utilization, maturity (5 levels), segments, area scoring, scorecard generation
- **Posture CLI** `scanners/posture.mjs` — standalone Node.js tool: `node posture.mjs <path> [--json] [--global]`
- **2 new commands**:
  - `/config-audit:posture` — quick scorecard with A-F grades, utilization%, maturity level
  - `/config-audit:feature-gap` — deep gap analysis with prioritized next-best-actions
- **feature-gap-agent** — Opus agent for deep analysis, report generation (max 200 lines)
- **Knowledge file** `gap-closure-templates.md` — 11 templates with effort/gain estimates
- **HTML report template** `templates/feature-gap-report.html` — visual report with progress bars, grade badges
- 64 new tests (total 268 across 14 test files)

### Changed
- Tier weighting: T1 gaps count 3x, T2 count 2x, T3/T4 count 1x in utilization score
- Maturity is threshold-based: highest level where ALL requirements are met

## [1.2.0] - 2026-04-03 (v2.0 S2: Advanced Scanners + Knowledge Base)

### Added
- **4 advanced scanners** (zero external deps):
  - `mcp-config-validator.mjs` (MCP) — server types, trust levels, env vars, unknown fields
  - `import-resolver.mjs` (IMP) — broken @imports, circular refs, deep chains, tilde paths
  - `conflict-detector.mjs` (CNF) — settings conflicts, permission contradictions, hook duplicates
  - `feature-gap-scanner.mjs` (GAP) — 25 feature gaps across 4 tiers (Foundation/Depth/Advanced/Enterprise)
- **Knowledge base** — 5 reference documents: capabilities, best practices, anti-patterns, hook events, feature evolution
- **New test fixtures** — `.mcp.json` files, @import chains, `conflict-project/` fixture
- 75 new tests (total 204 across 12 test files)

### Changed
- Scan orchestrator runs 8 scanners (was 4)
- Analyzer agent cross-references scanner findings with knowledge base

## [1.1.0] - 2026-04-03 (v2.0 S1: Scanner Foundation)

### Added
- **Deterministic scanner infrastructure** — 4 Node.js scanners (zero external deps):
  - `claude-md-linter.mjs` (CML) — CLAUDE.md structure, length, sections, @imports, duplicates
  - `settings-validator.mjs` (SET) — settings.json schema, unknown/deprecated keys, type checks
  - `hook-validator.mjs` (HKV) — hooks.json format, script existence, event validity, timeouts
  - `rules-validator.mjs` (RUL) — .claude/rules/ glob matching, orphan detection, deprecated fields
- **Scanner lib** — 5 shared modules: severity, output, file-discovery, yaml-parser, string-utils
- **Scan orchestrator** — `scan-orchestrator.mjs` runs all scanners, outputs JSON envelope
- **Test infrastructure** — 129 tests across 8 test files using node:test (zero deps)
- **Test fixtures** — 4 fixture projects (healthy, broken, empty, minimal)
- Finding ID format: `CA-{SCANNER}-{NNN}` (e.g. `CA-CML-001`)

### Fixed
- Agent model mismatches: scanner→haiku, analyzer→sonnet, planner→opus, implementer→sonnet, verifier→haiku

### Changed
- CLAUDE.md rewritten in English for public release readiness

## [1.0.0] - 2026-02-11

### Added
- Cross-platform support (macOS, Linux, Windows)

### Fixed
- `stop-session-reminder.mjs`: Use `path.basename`/`path.dirname` instead of hardcoded `/` split
- `backup-before-change.mjs`: Handle both `/` and `\` path separators in safe filename generation

### Removed
- "Windows: hooks are 100% bash" from known gaps (was incorrect — all hooks are Node.js)

## [0.7.0] - 2026-02-07

### Note
Version reset from 1.2.0 to reflect actual maturity. Previous version was inflated — this plugin has never been externally tested.

### What exists today
- 6 specialized agents (scanner, analyzer, interviewer, planner, implementer, verifier)
- Full machine-wide Claude Code configuration discovery
- Scope selection (current project, repo, home, full machine)
- Inheritance hierarchy mapping and conflict detection
- Mandatory backups before any changes
- Rollback support
- Syntax validation for all configuration files
- Quick audit-only mode
- Full optimization workflow with HITL checkpoints

### Known gaps
- Testing: no automated tests
- Onboarding: never verified that a new user can install and use from scratch
- External verification: nobody else has ever used this
