doc: add Phase 1 kickoff — execution plan for 6-bundle priority queue

Comprehensive Phase 1 strategy document prepared at end of probe cycle #108.

Contents:
- Phase 0 recap (freeze, tests, pinpoints, doctrines)
- What Phase 1 will do (6 bundles + independents, all gaebal-gajae reviewed)
- Concrete next steps (branch names, expected commits/tests per bundle)
- Priority 1: Error envelope contract drift (#181/#183) — foundation
- Priority 2: CLI contract hygiene (#184/#185) — extensions
- Priority 3: Classifier sweep 4-verb (#186/#187/#189/#192) — cleanup
- Priority 4: USAGE.md audit (#180) — doc prerequisite
- Priority 5: Dump-manifests help (#188) — doc-truth probe-flow
- Priority 6+: Independents (#190 design, #191 filesystem, others)
- Hypothesis validation (multi-flag verbs = 3-4 gaps, simple verbs = 0-1)
- Testing strategy + success criteria

All 5 priority bundles are reviewer-blessed (gaebal-gajae validation passes).

Doc-only. No code changes. Freeze held.

PHASE_1_KICKOFF.md

@@ -0,0 +1,192 @@
+# Phase 1 Kickoff — Classifier Sweeps + Doc-Truth + Design Decisions
+
+**Status:** Ready for execution once Phase 0 (`feat/jobdori-168c-emission-routing`) merges.
+
+**Date prepared:** 2026-04-23 11:47 Seoul (cycles #104–#108 complete, all unaudited surfaces probed)
+
+---
+
+## What Got Done (Phase 0)
+
+- ✅ JSON output shape routing (no-silent test, SCHEMAS baseline, parity guard)
+- ✅ 7 dogfood filings (#155, #169, #170, #171, #172, #153, checkpoint)
+- ✅ 9 probe cycles (plugins, agents, init, bootstrap-plan, system-prompt, export, sandbox, dump-manifests, skills)
+- ✅ 82 pinpoints filed, 67 genuinely open
+- ✅ 227/227 tests pass, 0 regressions
+- ✅ Review guide + priority queue locked
+- ✅ Doctrine: 28 principles accumulated
+
+---
+
+## What Phase 1 Will Do (Confirmed via Gaebal-Gajae)
+
+Execute priority-ordered fixes in 6 bundles + independents:
+
+### Priority 1: Error Envelope Contract Drift
+
+**Bundle:** `feat/jobdori-181-error-envelope-contract-drift` (#181 + #183)
+
+**What it fixes:**
+- #181: `plugins bogus-subcommand` returns success-shaped envelope (no `type: "error"`, error buried in message)
+- #183: `plugins` and `mcp` emit different shapes on unknown subcommand
+
+**Why it's Priority 1:** Foundation layer. Error envelope is the root contract. All downstream fixes assume correct envelope shape.
+
+**Implementation:** Align `plugins` unknown-subcommand handler to `agents` canonical reference. Ensure both emit `type: "error"` + correct `kind`.
+
+**Risk profile:** HIGH (touches error routing, breaks if consumers depend on old shape) → but gated by Phase 0 freeze + comprehensive tests
+
+---
+
+### Priority 2: CLI Contract Hygiene Sweep
+
+**Bundle:** `feat/jobdori-184-cli-contract-hygiene-sweep` (#184 + #185)
+
+**What it fixes:**
+- #184: `claw init` silently accepts unknown positional arguments (should reject)
+- #185: `claw bootstrap-plan` silently accepts unknown flags (should reject)
+
+**Why it's Priority 2:** Extensions. Guard clauses on existing envelope shape. Uses envelope from Priority 1.
+
+**Implementation:** Add trailing-args rejection to `init` and unknown-flag rejection to `bootstrap-plan`. Pattern: match existing guard in #171 (extra-args classifier).
+
+**Risk profile:** MEDIUM (adds guards, no shape changes)
+
+---
+
+### Priority 3: Classifier Sweep (4 Verbs)
+
+**Bundle:** `feat/jobdori-186-192-classifier-sweep` (#186 + #187 + #189 + #192)
+
+**What it fixes:**
+- #186: `system-prompt --<unknown>` classified as `unknown` → should be `cli_parse`
+- #187: `export --<unknown>` classified as `unknown` → should be `cli_parse`
+- #189: `dump-manifests --<unknown>` classified as `unknown` → should be `cli_parse`
+- #192: `skills install --<unknown>` classified as `unknown` → should be `cli_parse`
+
+**Why it's Priority 3:** Cleanup. Classifier additions, same envelope, one unified pattern across 4 verbs.
+
+**Implementation:** Add 4 classifier branches (one per verb) to the unknown-option handler. Same test pattern for all.
+
+**Risk profile:** LOW (classifier-only, no routing changes)
+
+---
+
+### Priority 4: USAGE.md Standalone Surface Audit
+
+**Bundle:** `feat/jobdori-180-usage-standalone-surface` (#180)
+
+**What it fixes:**
+- #180: USAGE.md incomplete verb coverage (doc-truthfulness audit-flow)
+
+**Why it's Priority 4:** Doc audit. Prerequisite for #188 (help-text gaps).
+
+**Implementation:** Audit USAGE.md against all verbs (compare against `claw --help` verb list). Add missing verb documentation.
+
+**Risk profile:** LOW (docs-only)
+
+---
+
+### Priority 5: Dump-Manifests Help-Text Fix
+
+**Bundle:** `feat/jobdori-188-dump-manifests-help-prerequisite` (#188)
+
+**What it fixes:**
+- #188: `dump-manifests --help` omits prerequisite (env var or flag required)
+
+**Why it's Priority 5:** Doc-truth probe-flow. Comes after audit-flow (#180).
+
+**Implementation:** Update help text to show required alternatives and environment variable.
+
+**Risk profile:** LOW (help-text only)
+
+---
+
+### Priority 6+: Independent Fixes
+
+- #190: Design decision (help-routing for no-args install) — needs architecture review
+- #191: `skills install` filesystem classifier gap — can bundle with #177/#178/#179 or standalone
+- #182: Plugin classifier alignment (unknown → filesystem/runtime) — depends on #181 resolution
+- #177/#178/#179: Install-surface taxonomy (possible 4-verb bundle)
+- #173: Config hint field (consumer-parity)
+- #174: Resume trailing classifier (closed? verify)
+- #175: CI fmt/test decoupling (gaebal-gajae owned)
+
+---
+
+## Concrete Next Steps (Once Phase 0 Merges)
+
+1. **Create branch 1:** `feat/jobdori-181-error-envelope-contract-drift`
+   - Files: error router, tests for #181 + #183
+   - PR against main
+   - Expected: 2 commits, 5 new tests, 0 regressions
+
+2. **Create branch 2:** `feat/jobdori-184-cli-contract-hygiene-sweep`
+   - Files: init guard, bootstrap-plan guard
+   - PR against main
+   - Expected: 2 commits, 3 new tests
+
+3. **Create branch 3:** `feat/jobdori-186-192-classifier-sweep`
+   - Files: unknown-option handler (4 verbs)
+   - PR against main
+   - Expected: 1 commit, 4 new tests
+
+4. **Create branch 4:** `feat/jobdori-180-usage-standalone-surface`
+   - Files: USAGE.md additions
+   - PR against main
+   - Expected: 1 commit, 0 tests
+
+5. **Create branch 5:** `feat/jobdori-188-dump-manifests-help-prerequisite`
+   - Files: help text update (string change)
+   - PR against main
+   - Expected: 1 commit, 0 tests
+
+6. **Triage independents:** #190 requires architecture discussion; others can follow once above merges.
+
+---
+
+## Hypothesis Validation (Codified for Future Probes)
+
+**Multi-flag verbs (install, enable, init, bootstrap-plan, system-prompt, export, dump-manifests):** 3–4 classifier gaps each.
+
+**Single-issue verbs (list, show, sandbox, agents):** 0–1 gaps.
+
+**Future probe strategy:** Prioritize multi-flag verbs; single-issue verbs are mostly clean.
+
+---
+
+## Doctrine Points Relevant to Phase 1 Execution
+
+- **Doctrine #22:** Schema baseline check before enum proposal
+- **Doctrine #25:** Contract-surface-first ordering (foundation → extensions → cleanup)
+- **Doctrine #27:** Same-pattern pinpoints should bundle into one classifier sweep PR
+- **Doctrine #28:** First observation is hypothesis, not filing (verify before classifying)
+
+---
+
+## Known Blockers & Risks
+
+1. **Phase 0 merge gating:** Can't create Phase 1 branches until Phase 0 lands (28 base + 37 new = 65 total pending)
+2. **#190 design decision:** help-routing behavior needs architectural consensus (intentional vs inconsistency)
+3. **Cross-family dependencies:** #182 depends on #181 (plugin error envelope must be correct first)
+
+---
+
+## Testing Strategy for Phase 1
+
+- **Priority 1–3 bundles:** Existing test framework (`output_format_contract.rs`, classifier tests). Comprehensive coverage per bundle.
+- **Priority 4–5 bundles:** Light doc verification (grep USAGE.md, spot-check help text).
+- **Independent fixes:** Case-by-case once prioritized.
+
+---
+
+## Success Criteria
+
+- ✅ All Priority 1–5 bundles merge to main
+- ✅ 0 regressions (227+ tests pass across all merges)
+- ✅ CI green on all PRs
+- ✅ Reviewer sign-offs on all bundles
+
+---
+
+**Phase 1 is ready to execute. Awaiting Phase 0 merge approval.**