diff --git a/AGENTS.md b/AGENTS.md
index 7076d44..f1b0c54 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -84,7 +84,7 @@ templates/         # Template files (config.json, DECISIONS.md, specification.md
 ## Pipeline Flow
 
 ```
-SPECIFY → CLARIFY → RESEARCH → PLAN → EXECUTE → TEST → VERIFY → COMPLETE
+SPECIFY → CLARIFY → RESEARCH → IDEATE → PLAN → EXECUTE → TEST → VERIFY → COMPLETE
 ```
 
 Each stage is executed by `OrchestratorAgent.executeStage()`. The orchestrator delegates intelligent stages (research, plan, execute, test, verify) to specialized agents via `context.backend` when available, falling back to mechanical execution when no backend is configured. Mechanical stages (specify, clarify, complete) are always handled by the orchestrator directly.
@@ -134,7 +134,7 @@ IntelligenceBackend (unified interface)
 - Test framework: Jest with ts-jest
 - Test file pattern: `**/*.test.ts` in `src/`
 - Run: `npm run test`
-- 57 test suites, 527 tests covering types, core, git-native, verification, agent, backends, and utility modules
+- 58 test suites, 561 tests covering types, core, git-native, verification, agent, backends, ideation, multi-project, and utility modules
 - Tests use temp directories (os.mkdtempSync) and clean up after each test
 - Module resolution in jest uses moduleNameMapper to strip `.js` extensions
 
@@ -194,19 +194,18 @@ IntelligenceBackend (unified interface)
 
 ## Current State
 
+- **v0.10.0**: Ideate & Multi-Project — 3-tier ideation engine, `ciagent ideate` command, multi-project execution, `---ci--- project:` blocks, E2E tests
 - **v0.9.0**: Integration & hardening — OpenAI and Anthropic backends, all 19 agents with intrinsic mechanical logic, E2E v0.9 integration tests, parallel agent execution
 - **v0.8.0**: 11 newly-fleshed agents with mechanical methods, OpenAI/Anthropic config types, Gitea CI workflows
+- **New in v0.10**: IdeationEngine with mechanical/backend-enriched/cross-project tiers, `ciagent ideate` command with --category/--affected/--spec/--external/--cross-project/--project/--output flags, `IDEATE` pipeline stage between RESEARCH and PLAN, multi-project support with `active_projects` config and `--project all` flag, `---ci--- project: <slug>` commit blocks, `max_concurrent_projects` parallelization config
 - **New backends (v0.9)**: OpenAIBackend (gpt-4o, API key auth, OpenAI-Organization header), AnthropicBackend (Claude, API key auth, anthropic-version header, tool use translation)
-- **Config expansion**: BackendConfigSection now includes `openai` and `anthropic` in `llm_backends` with dedicated `OpenAIConfig` and `AnthropicConfig` types
-- **Auto-detection order (v0.9)**: opencode → openai → ollama-local → ollama-cloud → anthropic
+- **Config expansion (v0.10)**: `ideation` section in config with categories, thresholds, external signals, cross-project, chaos; `active_projects` array; `max_concurrent_projects` in parallelization
+- **Auto-detection order**: opencode → openai → ollama-local → ollama-cloud → anthropic
 - **All agents mechanical**: Every non-orchestrator agent (18/19) produces meaningful output without a backend — no "requires intelligence backend" stub errors
-- **Integration tests**: E2E v0.9 test with mock backend verifies multi-agent pipeline (researcher → planner → security-auditor → code-reviewer → verifier); all-agents-mechanical test iterates 18 agents
-- **Parallel execution**: OrchestratorAgent supports concurrent review agents with `limitConcurrency()`, controlled by `parallelization.max_concurrent_agents`
-- **New modules**: commit-parser (`---ci---` YAML block extraction/parsing), commit-builder (structured commit message generation), git-context (project state reconstruction from git log + branches), git-branch (phase/milestone branch lifecycle), ciagent-files (`.ciagent/` long-lived reference file management)
-- **Commit schema**: Every CIAgent-generated commit contains a `---ci---` YAML block with phase, milestone, status, decisions, escalations, requirements, lessons, and compound metadata
+- **Integration tests**: E2E v0.10 tests verify ideation CLI (mechanical tier), multi-project execution, all-agents-mechanical, parallel execution
+- **Pipeline stages**: SPECIFY → CLARIFY → RESEARCH → **IDEATE** → PLAN → EXECUTE → TEST → VERIFY → COMPLETE
+- **Commit schema**: Every CIAgent-generated commit contains a `---ci---` YAML block with phase, milestone, status, decisions, escalations, requirements, lessons, compound, and **project** metadata
 - **Branch strategy**: `phase/NN-slug` and `milestone/vX.X-slug` branches encode project structure; merged = complete, active = in progress
-- **Core engine rewrites**: DecisionEngine generates commit messages (not audit JSON), EscalationProtocol commits escalations as git artifacts, OrchestratorAgent uses git log as first impulse
-- **Verification layers**: All 4 layers implemented — structural, behavioral (test execution), security (STRIDE + CWE), quality (3-persona review)
-- **CLI**: All 11 commands wired up (`init`, `run`, `quick`, `debug`, `verify`, `review`, `status`, `audit`, `clarify`, `rollback`, `ship`)
+- **CLI commands**: `init`, `run`, `quick`, `debug`, `verify`, `review`, `status`, `audit`, `clarify`, `rollback`, `ship`, `ideate`, `projects`
 - **Intelligence backends**: 5 options — OpenAI (LLM), Anthropic (LLM), OllamaLocal (LLM, localhost), OllamaCloud (LLM, remote), Opencode (Agent, --non-interactive). Auto-detection: opencode → openai → ollama-local → ollama-cloud → anthropic.
-- **Tests**: 57 test suites, 527 tests covering types, config, decision-engine, escalation, clarify, commit-parser, commit-builder, git-context, git-branch, ciagent-files, all 4 verification layers, file utils, backends (ollama, openai, anthropic, opencode, tool-registry), agents (all 18 non-orchestrator), zod validation, e2e, parallel execution
\ No newline at end of file
+- **Tests**: 58 test suites, 561 tests covering types, config, decision-engine, escalation, clarify, commit-parser, commit-builder, git-context, git-branch, ciagent-files, ideation, multi-project, all 4 verification layers, file utils, backends (ollama, openai, anthropic, opencode, tool-registry), agents (all 18 non-orchestrator), zod validation, E2E, parallel execution
\ No newline at end of file
diff --git a/README.md b/README.md
index c628edf..9ae38c7 100644
--- a/README.md
+++ b/README.md
@@ -63,6 +63,28 @@ ciagent quick "Add authentication middleware"
 # Check project status (reads from git log + branches)
 ciagent status
 
+# Discover improvement opportunities
+ciagent ideate                        # Mechanical tier (always available)
+ciagent ideate --category security    # Focus on specific categories
+ciagent ideate --affected             # Cascade impact analysis
+ciagent ideate --spec                 # Specification completeness analysis
+ciagent ideate --external             # npm audit + dependency staleness
+ciagent ideate --cross-project        # Cross-project pattern mining
+ciagent ideate --project all          # Run across all active projects
+ciagent ideate --output json          # JSON output mode
+ciagent ideate --output markdown      # Markdown output mode
+
+# Manage multiple projects
+ciagent projects list                 # List all registered projects
+ciagent projects add <slug> <name>    # Add a new project
+ciagent projects set <slug>           # Set the active project
+
+# Run with ideation stage
+ciagent run --ideate                  # Insert IDEATE stage between RESEARCH and PLAN
+
+# Run across all active projects
+ciagent run --project all             # Execute pipeline for each project
+
 # Review autonomous decisions (extracted from git log ---ci--- blocks)
 ciagent audit
 ciagent audit --verbose
@@ -77,7 +99,7 @@ ciagent rollback 1
 ciagent ship 1
 ```
 
-## Git-Native Architecture (v0.9.0)
+## Git-Native Architecture (v0.10.0)
 
 ### The Commit Schema
 
@@ -111,7 +133,7 @@ requirements:
 
 | Where | What | Why |
 |-------|------|-----|
-| `.ciagent/config.json` | Autonomy, thresholds, git strategy | Controls system behavior before any commits exist |
+| `.ciagent/config.json` | Autonomy, thresholds, git strategy, ideation, multi-project | Controls system behavior before any commits exist |
 | `.ciagent/PROJECT.md` | Vision, core value, requirements, constraints, key decisions table | Long-lived strategic reference |
 | `.ciagent/ARCHITECTURE.md` | System architecture, component boundaries, data flow | Long-lived technical reference |
 | `.ciagent/ROADMAP.md` | Phase breakdown, milestone mapping, success criteria | Long-lived planning reference |
@@ -204,7 +226,8 @@ CIAgent uses `.ciagent/config.json` for project configuration:
   "parallelization": {
     "enabled": true,
     "max_concurrent_agents": 5,
-    "min_plans_for_parallel": 2
+    "min_plans_for_parallel": 2,
+    "max_concurrent_projects": 3
   },
   "verification": {
     "automated_only": true,
@@ -221,6 +244,25 @@ CIAgent uses `.ciagent/config.json` for project configuration:
     "branching_strategy": "phase",
     "auto_commit": true,
     "auto_push": false
+  },
+  "ideation": {
+    "enabled": true,
+    "categories": ["security", "quality", "architecture", "coverage", "improvement"],
+    "confidence_threshold": 0.6,
+    "max_ideas": 20,
+    "external_signals": {
+      "npm_audit": true,
+      "osv_advisories": true,
+      "dependency_staleness": true
+    },
+    "cross_project": {
+      "enabled": false,
+      "similarity_weight": 0.5
+    },
+    "chaos": {
+      "enabled": true,
+      "scenarios": ["backend_unavailable", "requirement_change", "test_coverage_drop"]
+    }
   }
 }
 ```
@@ -230,9 +272,9 @@ CIAgent uses `.ciagent/config.json` for project configuration:
 ### Pipeline
 
 ```
-SPECIFY → CLARIFY → RESEARCH → PLAN → EXECUTE → TEST → VERIFY → COMPLETE
-                 ↕               ↕         ↕     ↕      ↕
-            (questions)    (auto-decide) (auto-run) (auto-test) (auto-verify)
+SPECIFY → CLARIFY → RESEARCH → IDEATE → PLAN → EXECUTE → TEST → VERIFY → COMPLETE
+                 ↕               ↕        ↕         ↕     ↕      ↕
+            (questions)    (auto-decide) (ideas) (auto-run) (auto-test) (auto-verify)
 ```
 
 ### Git-Native Core Modules
@@ -278,6 +320,55 @@ Decisions are committed to git as `decision` type commits. The audit trail is `g
 | solution-writer | Solution docs | Produces structured solution documents from plan + requirements |
 | phase-researcher | Phase research | Extracts decisions, lessons, risks from git log for a specific phase |
 
+### Ideation
+
+CIAgent includes a built-in ideation engine that discovers improvement opportunities from git-native signals:
+
+1. **Tier 1 — Mechanical**: Mines git history for uncovered requirements, repeated lessons, low-confidence decisions, escalation patterns, coverage gaps, architecture drift, and verification inversions
+2. **Tier 2 — Backend-enriched**: When a backend is available, prioritizes mechanical findings and suggests novel improvements
+3. **Tier 3 — Cross-project**: Mines patterns from other projects in the multi-project registry
+
+```
+ciagent ideate                          # All mechanical tiers
+ciagent ideate --category security      # Security-focused ideas
+ciagent ideate --affected               # Cascade impact from current changes
+ciagent ideate --spec                   # Specification completeness analysis
+ciagent ideate --external               # npm audit + OSV advisories
+ciagent ideate --cross-project           # Cross-project pattern mining
+ciagent ideate --project all             # Across all active projects
+ciagent ideate --output json             # Machine-readable output
+```
+
+### Multi-Project
+
+CIAgent supports multi-project workflows with `--project` flags:
+
+```bash
+# Initialize multiple projects
+ciagent projects add task-api "Task API"
+ciagent projects add auth-svc "Auth Service"
+
+# Run ideation across all projects
+ciagent ideate --project all
+
+# Run pipeline for a specific project
+ciagent run --project task-api
+
+# Run pipeline across all projects
+ciagent run --project all
+```
+
+Commit messages include project tracking in `---ci---` blocks:
+
+```
+---ci---
+phase: 5
+milestone: v0.10
+project: task-api
+status: execute
+---/ci---
+```
+
 ### Verification Layers
 
 1. **Structural**: File existence, import/export wiring, no stubs
diff --git a/opencode/ci/references/branch-strategy.md b/opencode/ci/references/branch-strategy.md
index 78d3246..250e549 100644
--- a/opencode/ci/references/branch-strategy.md
+++ b/opencode/ci/references/branch-strategy.md
@@ -106,20 +106,27 @@ Phase branches can be deleted after merge if desired.
 
 **Every merge to main creates a release. No exceptions.** Versioning follows a 3-tier model based on milestone type:
 
-### 3-Tier Versioning Model
+### Milestone Type and Versioning
+
+The milestone type is determined **before any development work** and governs all versioning for the entire milestone.
+
+**Define semver at milestone start:** establish the version and milestone type before writing code.
+
+Determine milestone type via `getMilestoneType()` which returns `"nfr" | "feature" | "major"`:
 
 | Milestone Type | Condition | Phase release | Milestone release |
 |---------------|-----------|---------------|-------------------|
-| **NFR** | All phases: fix/chore/docs/perf/refactor/test | Patch (`vX.Y.Z`) | None |
-| **Feature** | Any phase is `feat`, no schema break | Patch (`vX.Y.Z`) | Minor — `vX.(Y+1).0` |
-| **Schema-breaking** | Refactor/schema break/new direction | Minor — `vX.(Y+N).0` per phase | Major — `v(X+1).0.0` |
+| **NFR** | All phases are fix/chore/docs/perf/refactor/test | Patch — `v1.8.1`, `v1.8.2`, ... | None — final patch IS the deliverable |
+| **Feature** | At least one phase has new features (`feat`) | Patch — `v1.8.1`, `v1.8.2`, ... | Next minor — `v1.9.0` |
+| **Major** | Breaking schema changes or complete refactor | Minor — `v2.1.0`, `v2.2.0`, ... | Major — `v3.0.0` |
 
-**IMPORTANT:** Milestone tags are always the NEXT version, never the base:
-- Feature: patches v0.5.1–v0.5.5 → milestone tag is v0.6.0 (NOT v0.5.0)
-- Schema-breaking: minors v0.3.0, v0.4.0, v0.5.0 → milestone tag is v1.0.0
-- NFR: no milestone tag — the milestone is implicit from the patch sequence
-
-Determine milestone type via `getMilestoneType()` which returns `"nfr" | "feature" | "schema-breaking"`.
+**Tag rules (CRITICAL):**
+- Milestone tags are always the NEXT version, never the base:
+  - Feature: patches v0.5.1–v0.5.5 → milestone tag is v0.6.0 (NOT v0.5.0)
+  - Major: minors v0.3.0, v0.4.0, v0.5.0 → milestone tag is v1.0.0
+  - NFR: no milestone tag — the final patch release IS the deliverable
+- Tags must be strictly greater than all existing tags on the same major.minor line
+- NEVER create a milestone tag that is semantically below existing phase tags
 
 ### Phase completion
 
@@ -135,7 +142,7 @@ git push origin main --tags
 
 Phase number within the milestone determines the patch version (1st phase = .1, 2nd phase = .2, etc.)
 
-**Schema-breaking (minor release per phase):**
+**Major (minor release per phase):**
 ```bash
 git checkout milestone/v0.5-schema-rewrite
 git merge --squash phase/01-core-refactor
@@ -145,7 +152,7 @@ git push origin main --tags
 # Create Gitea release for v0.5.0
 ```
 
-Each schema-breaking phase bumps the minor. 1st phase = next available minor, 2nd = minor+1, etc.
+Each major phase bumps the minor. 1st phase = next available minor, 2nd = minor+1, etc.
 
 ### Milestone completion
 
@@ -160,7 +167,7 @@ git push origin main --tags
 # Create Gitea release for v0.6.0 with full milestone summary
 ```
 
-**Schema-breaking (major release):**
+**Major (major release):**
 ```bash
 # All phases already merged into milestone branch
 git checkout main
@@ -177,9 +184,20 @@ git push origin main --tags
 
 Before creating any tag:
 1. Tag must be strictly greater than all existing tags on the same major.minor line
-2. Milestone completion tag must be next minor (feature) or next major (schema-breaking)
+2. Milestone completion tag must be next minor (feature) or next major (major)
 3. NEVER create a tag that is semantically below existing phase tags
 
+### Merge Validation Gates
+
+The branch hierarchy `main > milestone/vX.X-slug > phase/NN-slug` is enforced at merge time:
+
+| Merge Type | Rule | Validation |
+|------------|------|-------------|
+| Phase → Milestone | Must target milestone branch when one exists | REJECTED if milestone branch does not exist for this phase's milestone |
+| Phase → Main | Only allowed when no milestone branch exists | REJECTED if a milestone branch exists for this milestone |
+| Milestone → Main | Only after all phase branches are merged | REJECTED if any phase branches for this milestone are unmerged |
+| Hotfix → Main | Allowed (exception to hierarchy) | Always allowed |
+
 ## Multi-Project Branch Naming
 
 When operating in multi-project mode (`.ciagent/config.json` has `projects[]` with length > 0):
diff --git a/opencode/ci/workflows/run.md b/opencode/ci/workflows/run.md
index e626393..c34be9a 100644
--- a/opencode/ci/workflows/run.md
+++ b/opencode/ci/workflows/run.md
@@ -101,7 +101,7 @@ For each stage in order (starting from current or from `specify`):
 - Update `.ciagent/ROADMAP.md` phase status
 - Commit: `docs(P##): complete [phase-name] phase`
 
-Versioning: Major = project-level refactor/schema change, Minor = milestone completion, Patch = every phase.
+Versioning: Major milestone = breaking schema changes, Feature milestone = milestone completion (minor), Patch = every phase.
 
 ## Phase Boundary Checkpoint
 
@@ -113,12 +113,13 @@ Between phases, perform a context reset:
 4. Reset context: spawn fresh agent (opencode) or re-read git context (platforms without subagents)
 5. Next phase begins with fresh context from git log only
 
-## NFR Versioning Logic
+## Versioning Logic
 
-Before tagging a phase completion, check `isNfrMilestone()`:
+Before tagging a phase completion, check `getMilestoneType()` which returns `"nfr" | "feature" | "major"`:
 
-- **NFR milestone** (all phases are fix/chore/docs/perf/refactor/test): apply progressive patch versions (v0.1.1, v0.1.2, v0.1.3). No separate milestone tag.
-- **Feature milestone** (any feat phase): apply progressive patch versions per phase, then tag minor milestone version on completion (e.g., v0.2.0).
+- **NFR milestone** (all phases are fix/chore/docs/perf/refactor/test): apply progressive patch versions (v0.1.1, v0.1.2, v0.1.3). No separate milestone tag — the final patch IS the deliverable.
+- **Feature milestone** (at least one feat phase): apply progressive patch versions per phase, then tag next minor milestone version on completion (e.g., v0.6.0, NOT v0.5.0).
+- **Major milestone** (breaking schema changes or complete refactor): apply progressive minor versions per phase (v0.3.0, v0.4.0), then tag next major on completion (e.g., v1.0.0).
 
 ## Step 4: Error Recovery
 
diff --git a/opencode/ci/workflows/ship.md b/opencode/ci/workflows/ship.md
index 5ac0ba8..743efe9 100644
--- a/opencode/ci/workflows/ship.md
+++ b/opencode/ci/workflows/ship.md
@@ -1,25 +1,45 @@
 ---
-description: Ship CIAgent phase or milestone — test, tag, release. Every phase and milestone gets a release. Full autopilot.
+description: Ship CIAgent phase or milestone — Full autopilot release: validate, test, merge, tag, push, release. Zero HITL
 ---
 
 # CIAgent Ship
 
 Ship a CIAgent phase or milestone. Every ship creates a release — no exceptions.
 
-**3-Tier Versioning Model:**
+**Usage:** `ciagent-ship [phase_number|milestone]`
+
+## Autopilot Rules
+
+These rules are **non-negotiable**. The ship workflow runs in full autopilot mode:
+
+- **Zero HITL** — no confirmation prompts, no approval gates, no requests for human input. The agent executes the entire release flow autonomously.
+- **No Shortcuts** — deep validation, testing, and merge checks must all run in full. The lack of HITL is not an excuse to skip steps.
+- **Notification Only** — status updates are informational, not requests for approval. Report outcomes, never ask permission.
+- **Autonomous Loop on Failure** — if any step fails (tests, pipeline, merge conflicts), iterate autonomously until success. Do NOT ask the user for guidance on how to fix a failing test or pipeline.
+- **Branch Hierarchy Enforced** — `main > milestone/vX.X-slug > phase/NN-slug`. Phase merges into milestone, milestone merges into main. This is validated, not assumed.
+
+## Milestone Type and Versioning
+
+The milestone type is determined **before any development work** and governs all versioning for the entire milestone.
+
+**Define semver at milestone start:** establish the version and milestone type before writing code.
+
+Determine milestone type by calling `getMilestoneType()` which returns `"nfr" | "feature" | "major"`:
 
 | Milestone Type | Condition | Phase release | Milestone release |
 |---------------|-----------|---------------|-------------------|
-| **NFR** | All phases: fix/chore/docs/perf/refactor/test | Patch (`vX.Y.Z`) | None |
-| **Feature** | Any phase is `feat`, no schema break | Patch (`vX.Y.Z`) | Minor — `vX.(Y+1).0` |
-| **Schema-breaking** | Refactor/schema break/new direction | Minor — `vX.(Y+N).0` per phase | Major — `v(X+1).0.0` |
+| **NFR** | All phases are fix/chore/docs/perf/refactor/test | Patch — `v1.8.1`, `v1.8.2`, ... | None — final patch IS the deliverable |
+| **Feature** | At least one phase has new features (`feat`) | Patch — `v1.8.1`, `v1.8.2`, ... | Next minor — `v1.9.0` |
+| **Major** | Breaking schema changes or complete refactor | Minor — `v2.1.0`, `v2.2.0`, ... | Major — `v3.0.0` |
 
-**CRITICAL:** Milestone tags are always the NEXT version, never the base:
-- Feature: patches v0.5.1–v0.5.5 → milestone tag is v0.6.0 (NOT v0.5.0)
-- Schema-breaking: minors v0.3.0, v0.4.0, v0.5.0 → milestone tag is v1.0.0
-- NFR: no milestone tag — the milestone is implicit from the patch sequence
+**Tag rules (CRITICAL):**
 
-**Usage:** `ciagent-ship [phase_number|milestone]`
+- Milestone tags are always the NEXT version, never the base:
+  - Feature: patches v0.5.1–v0.5.5 → milestone tag is v0.6.0 (NOT v0.5.0)
+  - Major: minors v0.3.0, v0.4.0, v0.5.0 → milestone tag is v1.0.0
+  - NFR: no milestone tag — the final patch release IS the deliverable
+- Tags must be strictly greater than all existing tags on the same major.minor line
+- NEVER create a milestone tag that is semantically below existing phase tags
 
 ## Step 0: Confirm Active Project
 
@@ -33,11 +53,12 @@ If `.ciagent/config.json` has `projects[]` with length > 0:
 
 If single-project mode: proceed with existing conventions.
 
-## Step 1: Pre-Flight
+## Step 1: Pre-Flight Validation
 
 ```bash
 git log --max-count=10
 git branch -a
+git tag -l
 ```
 
 Determine what is being shipped: a single phase or an entire milestone.
@@ -49,6 +70,16 @@ Read `.ciagent/ROADMAP.md` to determine:
 
 Read `.ciagent/config.json` for autonomy level.
 
+**Validation gates — all must pass before proceeding:**
+
+1. **Milestone type resolved** — `getMilestoneType()` must return `"nfr" | "feature" | "major"`. Stop if undefined.
+2. **Branch hierarchy correct** — phase branch exists and targets the correct parent (milestone branch, or main if no milestone branch exists).
+3. **No unmerged phase branches** — if shipping a milestone, all phase branches for this milestone must be merged into the milestone branch.
+4. **Tag sequence valid** — the computed tag must be strictly greater than all existing tags on the same major.minor line. Check with `git tag -l`.
+5. **Autonomy confirmed** — `.ciagent/config.json` autonomy level must be `full`. This is the zero-HITL enforcement point.
+
+If any validation fails: stop and report. Do NOT proceed past a failed gate.
+
 ## Step 2: Run Tests
 
 ```bash
@@ -59,33 +90,77 @@ npm run build
 
 If any fail: iterate autonomously until tests pass. Do NOT ask the user for guidance — debug and fix.
 
-## Step 3: Compute Version
+## Step 3: Create PR and Quality Assurance
 
-Determine milestone type by calling `getMilestoneType()` which returns `"nfr" | "feature" | "schema-breaking"`:
+**Open a Pull Request for the merge target:**
+
+```bash
+tea pr create --base <target-branch> --head <source-branch> --title "ship: [phase-name or milestone-name]"
+```
+
+- For a phase ship: PR from `phase/NN-slug` into `milestone/vX.Y-slug` (or `main` if no milestone branch).
+- For a milestone ship: PR from `milestone/vX.Y-slug` into `main`.
+
+**Auto-merge configuration:**
+
+Set the PR to auto-merge upon pipeline success:
+
+```bash
+tea pr merge <pr-number> --auto --squash
+```
+
+**Review:**
+
+Conduct a thorough autonomous review of the PR diff. Check:
+- All expected files are included
+- No unintended changes slipped in
+- No secrets or credentials in the diff
+- All `---ci---` blocks have correct metadata
+
+**Finalization:**
+
+- **On pipeline success:** the PR auto-merges. Proceed to Step 4.
+- **On pipeline failure:** iterate autonomously until the pipeline passes. Do NOT merge a PR with a failing pipeline. Do NOT ask for guidance.
+
+**Strict rule:** Never merge a PR with a failed pipeline. No exceptions.
+
+## Step 4: Compute Version
 
 | What's shipping | Milestone Type | Phase release | Milestone release | Example |
-|----------------|---------------|-------------|------------|---------|
+|----------------|---------------|---------------|-------------------|---------|
 | Single phase | NFR | Patch `vX.Y.Z` | N/A | v0.1.3 (3rd NFR phase) |
 | Single phase | Feature | Patch `vX.Y.Z` | N/A | v0.2.3 (3rd feature phase) |
-| Single phase | Schema-breaking | Minor `vX.(Y+N).0` | N/A | v0.4.0 (2nd schema-breaking phase) |
+| Single phase | Major | Minor `vX.(Y+N).0` | N/A | v0.4.0 (2nd major phase) |
 | Milestone completion | NFR | Patch (last phase) | None | v0.1.3 (no milestone tag) |
 | Milestone completion | Feature | Last patch | Minor `vX.(Y+1).0` | v0.3.0 (NOT v0.2.0) |
-| Milestone completion | Schema-breaking | Last minor | Major `v(X+1).0.0` | v1.0.0 |
+| Milestone completion | Major | Last minor | Major `v(X+1).0.0` | v1.0.0 |
 
 Phase number within the milestone determines the increment:
 - NFR/Feature: 1st phase = .1, 2nd = .2, etc. (v0.5.1, v0.5.2)
-- Schema-breaking: 1st phase = next minor, 2nd = minor+1, etc. (v0.3.0, v0.4.0)
+- Major: 1st phase = next minor, 2nd = minor+1, etc. (v0.3.0, v0.4.0)
 
-**Before creating ANY tag, validate:**
-1. The tag must be strictly greater than all existing tags on the same major.minor line
-2. Milestone completion tag must be the next minor (feature) or next major (schema-breaking)
+**Tag validation (before creating ANY tag):**
+1. Tag must be strictly greater than all existing tags on the same major.minor line
+2. Milestone completion tag must be next minor (feature) or next major (major)
 3. NEVER create a milestone tag that is semantically below existing phase tags (e.g., v0.5.0 when v0.5.1 already exists)
 
-## Step 4: Merge Branch
+## Step 5: Merge Branch
 
 ### Branch hierarchy: main > milestone/vX.X-slug > phase/NN-slug
 
-Phases MUST merge into their milestone branch (or to main if no milestone branch exists). Milestones merge into main only after all phases are complete.
+### Merge validation gates
+
+**Phase → Milestone:**
+- VALIDATED — must target milestone branch when one exists
+- REJECTED if milestone branch does not exist for this phase's milestone
+
+**Phase → Main:**
+- VALIDATED — only allowed when NO milestone branch exists for this phase's milestone
+- REJECTED if a milestone branch exists for this milestone
+
+**Milestone → Main:**
+- VALIDATED — only after all phase branches are merged
+- REJECTED if any phase branches for this milestone are unmerged
 
 ### Phase ship
 
@@ -123,8 +198,9 @@ requirements:
 
 ### Milestone ship (after last phase)
 
+**Validate all phase branches are merged into the milestone branch before proceeding.**
+
 ```bash
-# Verify all phase branches are merged into milestone branch
 git checkout main
 git merge --squash milestone/vX.Y-slug
 git commit -m "docs(milestone): complete [milestone-name]
@@ -136,7 +212,7 @@ status: complete
 ---/ci---"
 ```
 
-## Step 5: Tag and Push
+## Step 6: Tag and Push
 
 ```bash
 git tag -a vX.Y.Z -m "vX.Y.Z: [phase-name or milestone-name]"
@@ -145,21 +221,21 @@ git push origin main --tags
 
 **Tag format by milestone type:**
 - NFR/Feature phase: patch format (`v0.5.1`, `v0.5.2`)
-- Schema-breaking phase: minor format (`v0.3.0`, `v0.4.0`)
+- Major phase: minor format (`v0.3.0`, `v0.4.0`)
 - Feature milestone: next minor (`v0.6.0`, NOT `v0.5.0`)
-- Schema-breaking milestone: next major (`v1.0.0`)
+- Major milestone: next major (`v1.0.0`)
 
-## Step 6: Create Release
+## Step 7: Create Release and Package
 
 **Every ship creates a Gitea release. No exceptions.**
 
-Generate release notes from git log:
+### Generate release notes
 
 ```bash
 git log v[previous_tag]..vX.Y.Z --oneline
 ```
 
-Create the release via Gitea API:
+### Create the Gitea release
 
 ```bash
 curl -X POST "https://git.cloudinit.dev/api/v1/repos/continuous-intelligence/ci/releases" \
@@ -170,14 +246,37 @@ curl -X POST "https://git.cloudinit.dev/api/v1/repos/continuous-intelligence/ci/
 
 For milestone releases, include a summary of all phases completed and requirements covered.
 
-## Step 7: Update .ci/ Files
+### Create distribution packages
+
+Use coreci to create the necessary distribution packages:
+
+```bash
+coreci build --tag vX.Y.Z
+coreci package --tag vX.Y.Z
+```
+
+Upload packages to the Gitea release:
+
+```bash
+coreci release upload --tag vX.Y.Z --files [built-artifacts]
+```
+
+### Generate documentation
+
+Include release notes in the Gitea release body with:
+- Summary of changes
+- Requirements covered
+- Known issues (if any)
+- Migration notes (for major milestones)
+
+## Step 8: Update .ci/ Files
 
 - Update `.ciagent/REQUIREMENTS.md` — mark shipped requirements as complete
 - Update `.ciagent/ROADMAP.md` — mark shipped phase as complete
 
 Commit the file updates.
 
-## Step 8: Report
+## Step 9: Report
 
 ```
 ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
@@ -185,7 +284,7 @@ Commit the file updates.
 ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
 
 Phase [N]: [name]
-Milestone: [vX.Y] ([nfr|feature|schema-breaking])
+Milestone: [vX.Y] ([nfr|feature|major])
 Version: vX.Y.Z
 Release: https://git.cloudinit.dev/continuous-intelligence/ci/releases/tag/vX.Y.Z
 Status: complete
@@ -193,6 +292,7 @@ Status: complete
 Tests: PASS
 Typecheck: PASS
 Build: PASS
+Pipeline: PASS
 
 Requirements covered: [N]
 Commits: [N]
diff --git a/opencode/command/ci-ship.md b/opencode/command/ci-ship.md
index bf827bb..b338539 100644
--- a/opencode/command/ci-ship.md
+++ b/opencode/command/ci-ship.md
@@ -1,5 +1,5 @@
 ---
-description: Ship CIAgent phase or milestone — test, commit, tag, push, release. Full autopilot: zero HITL after milestone setup
+description: Ship CIAgent phase or milestone — Full autopilot release: validate, test, merge, tag, push, release. Zero HITL
 argument-hint: "[phase_number|milestone]"
 tools:
   read: true
@@ -12,7 +12,7 @@ tools:
 ---
 
 <execution_context>
-@__OPENCODE_DIR__/ci/workflows/ship.md
+@/root/.config/opencode/ci/workflows/ship.md
 </execution_context>
 
 <context>
diff --git a/package-lock.json b/package-lock.json
index 188e712..ac33107 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@continuous-intelligence/ciagent",
-  "version": "0.9.0",
+  "version": "0.10.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@continuous-intelligence/ciagent",
-      "version": "0.9.0",
+      "version": "0.10.0",
       "license": "MIT",
       "dependencies": {
         "commander": "^12.1.0",
diff --git a/package.json b/package.json
index b7f642d..5a3462b 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@continuous-intelligence/ciagent",
-  "version": "0.9.0",
+  "version": "0.10.0",
   "description": "Fully autonomous AI-driven software engineering harness - Continuous Intelligence",
   "main": "dist/index.js",
   "types": "dist/index.d.ts",
diff --git a/src/cli/commands.ts b/src/cli/commands.ts
index 8ee1a23..ea03ed8 100644
--- a/src/cli/commands.ts
+++ b/src/cli/commands.ts
@@ -1002,7 +1002,7 @@ function computeShipVersion(
   projectPath: string,
   phaseNum: number,
   config: CIAgentConfig
-): { tag: string; milestoneType: "nfr" | "feature" | "schema-breaking" } {
+): { tag: string; milestoneType: "nfr" | "feature" | "major" } {
   const tags = execSync("git tag -l", { cwd: projectPath, encoding: "utf-8" })
     .split("\n")
     .map((t) => t.trim())
@@ -1029,7 +1029,7 @@ function computeShipVersion(
   const milestoneType = inferMilestoneType(projectPath);
 
   let tag: string;
-  if (milestoneType === "schema-breaking") {
+  if (milestoneType === "major") {
     tag = `v${major}.${minor + phaseNum}.0`;
   } else {
     tag = `v${major}.${minor}.${phaseNum}`;
@@ -1038,10 +1038,10 @@ function computeShipVersion(
   return { tag, milestoneType };
 }
 
-function inferMilestoneType(projectPath: string): "nfr" | "feature" | "schema-breaking" {
+function inferMilestoneType(projectPath: string): "nfr" | "feature" | "major" {
   try {
     const log = execSync("git log --oneline -50", { cwd: projectPath, encoding: "utf-8" });
-    if (log.match(/\brefactor\b|\brewrite\b|\bmigrate\b|\brestructure\b/i)) return "schema-breaking";
+    if (log.match(/\brefactor\b|\brewrite\b|\bmigrate\b|\brestructure\b/i)) return "major";
     if (log.match(/\bfeat\b/)) return "feature";
     return "nfr";
   } catch {
diff --git a/src/core/ciagent-files.test.ts b/src/core/ciagent-files.test.ts
index 31c0af4..54ec195 100644
--- a/src/core/ciagent-files.test.ts
+++ b/src/core/ciagent-files.test.ts
@@ -329,7 +329,7 @@ describe("CIAgentFiles", () => {
       expect(ciFiles.getMilestoneType()).toBe("feature");
     });
 
-    it("returns schema-breaking when phases include refactor/rewrite/migrate", () => {
+    it("returns major when phases include refactor/rewrite/migrate", () => {
       const ciFiles = new CIAgentFiles(dir, "schema-proj");
       ciFiles.ensureProjectDir();
       fs.writeFileSync(path.join(dir, ".ciagent", "config.json"), JSON.stringify({
@@ -337,13 +337,13 @@ describe("CIAgentFiles", () => {
         active_project: "schema-proj",
       }));
       const roadmap: RoadmapMd = {
-        overview: "schema-breaking",
+        overview: "major",
         phases: [
           { number: 1, name: "refactor-core", description: "Refactor core", status: "in_progress", dependsOn: [], requirements: [], successCriteria: [] },
         ],
       };
       ciFiles.writeRoadmapMd(roadmap);
-      expect(ciFiles.getMilestoneType()).toBe("schema-breaking");
+      expect(ciFiles.getMilestoneType()).toBe("major");
     });
   });
 
diff --git a/src/core/ciagent-files.ts b/src/core/ciagent-files.ts
index 73614c5..a1fcaa9 100644
--- a/src/core/ciagent-files.ts
+++ b/src/core/ciagent-files.ts
@@ -486,7 +486,7 @@ export class CIAgentFiles {
       }
     }
 
-    if (hasSchemaBreak) return "schema-breaking";
+    if (hasSchemaBreak) return "major";
     if (hasFeature) return "feature";
     return "nfr";
   }
diff --git a/src/core/git-branch.test.ts b/src/core/git-branch.test.ts
index f0606ca..45ceb9e 100644
--- a/src/core/git-branch.test.ts
+++ b/src/core/git-branch.test.ts
@@ -192,11 +192,11 @@ describe("GitBranch", () => {
       expect(tag).toBe("v0.6.0");
     });
 
-    it("computes next major for schema-breaking milestone", () => {
+    it("computes next major for major milestone", () => {
       execSync(`git tag -a v0.5.1 -m "v0.5.1"`, { cwd: repoDir, stdio: "pipe" });
 
       const gitBranch = new GitBranch(repoDir);
-      const tag = gitBranch.computeMilestoneTag("schema-breaking");
+      const tag = gitBranch.computeMilestoneTag("major");
       expect(tag).toBe("v1.0.0");
     });
 
diff --git a/src/core/git-branch.ts b/src/core/git-branch.ts
index b2c49e0..046cee9 100644
--- a/src/core/git-branch.ts
+++ b/src/core/git-branch.ts
@@ -242,7 +242,7 @@ export class GitBranch {
       }
     }
 
-    if (milestoneType === "schema-breaking") {
+    if (milestoneType === "major") {
       return `v${major + 1}.0.0`;
     }
 
diff --git a/src/core/git-context.test.ts b/src/core/git-context.test.ts
index 1455868..b7542ac 100644
--- a/src/core/git-context.test.ts
+++ b/src/core/git-context.test.ts
@@ -307,7 +307,7 @@ status: execute
       expect(ctx.getMilestoneType()).toBe("feature");
     });
 
-    it("returns schema-breaking when refactor commits exist", () => {
+    it("returns major when refactor commits exist", () => {
       commit(repoDir, `refactor(P01): rewrite core
 
 ---ci---
@@ -317,7 +317,7 @@ status: execute
 ---/ci---`);
 
       const ctx = new GitContext(repoDir);
-      expect(ctx.getMilestoneType()).toBe("schema-breaking");
+      expect(ctx.getMilestoneType()).toBe("major");
     });
   });
 });
\ No newline at end of file
diff --git a/src/core/git-context.ts b/src/core/git-context.ts
index b636e8d..0fd804d 100644
--- a/src/core/git-context.ts
+++ b/src/core/git-context.ts
@@ -333,7 +333,7 @@ export class GitContext {
       if (!commit.ci) continue;
       hasAnyCiCommit = true;
       if (commit.type === "feat") return "feature";
-      if (commit.type === "refactor" || commit.scope === "init") return "schema-breaking";
+      if (commit.type === "refactor" || commit.scope === "init") return "major";
     }
     if (!hasAnyCiCommit) return "nfr";
     return "nfr";
diff --git a/src/types/config.ts b/src/types/config.ts
index 02ffefa..96bb66c 100644
--- a/src/types/config.ts
+++ b/src/types/config.ts
@@ -7,7 +7,7 @@ export type ModelProfile = "quality" | "speed" | "balanced";
 
 export type BranchingStrategy = "phase" | "feature" | "trunk";
 
-export type MilestoneType = "nfr" | "feature" | "schema-breaking";
+export type MilestoneType = "nfr" | "feature" | "major";
 
 export type PhaseName = "research" | "plan" | "execute" | "verify" | "complete";
 
diff --git a/src/verification/e2e-ideation.test.ts b/src/verification/e2e-ideation.test.ts
new file mode 100644
index 0000000..c86f5a0
--- /dev/null
+++ b/src/verification/e2e-ideation.test.ts
@@ -0,0 +1,399 @@
+import * as fs from "node:fs";
+import * as path from "node:path";
+import * as os from "node:os";
+import { execSync } from "node:child_process";
+import { IdeationEngine, resetIdeaCounter } from "../core/ideation.js";
+import { CIAgentFiles } from "../core/ciagent-files.js";
+
+function createTempDir(): string {
+  return fs.mkdtempSync(path.join(os.tmpdir(), "ciagent-e2e-ideation-"));
+}
+
+function cleanup(dir: string): void {
+  fs.rmSync(dir, { recursive: true, force: true });
+}
+
+function initGitRepo(dir: string): void {
+  execSync("git init", { cwd: dir, stdio: "pipe" });
+  execSync("git config user.email test@test.com", { cwd: dir, stdio: "pipe" });
+  execSync("git config user.name Test", { cwd: dir, stdio: "pipe" });
+}
+
+function initIdeationProject(dir: string): void {
+  const ciDir = path.join(dir, ".ciagent");
+  fs.mkdirSync(ciDir, { recursive: true });
+  fs.writeFileSync(path.join(ciDir, "PROJECT.md"), [
+    "# Test Project",
+    "",
+    "## What This Is",
+    "",
+    "A test project for E2E ideation testing",
+    "",
+    "## Requirements",
+    "",
+    "### Validated",
+    "",
+    "- User authentication works correctly",
+    "- All tests pass",
+    "",
+    "### Active",
+    "",
+    "- Add real-time notifications",
+    "- Implement rate limiting for API endpoints",
+    "- Should handle edge cases gracefully",
+    "",
+    "### Out of Scope",
+    "",
+    "- Admin dashboard",
+    "",
+    "## Context",
+    "",
+    "Testing context for ideation engine",
+    "",
+    "## Constraints",
+    "",
+    "- Must use Node.js",
+    "- Must be production-ready",
+    "",
+    "## Key Decisions",
+    "",
+    "| Decision | Rationale | Outcome |",
+    "|----------|-----------|---------|",
+  ].join("\n"));
+
+  fs.writeFileSync(path.join(ciDir, "REQUIREMENTS.md"), [
+    "# Requirements",
+    "",
+    "## v0.10 Requirements — Test Project",
+    "",
+    "| REQ-ID | Requirement | Priority | Phase | Status |",
+    "|--------|-------------|----------|-------|--------|",
+    "| IDEATE-01 | Ideation command | P0 | 1 | pending |",
+    "| IDEATE-02 | Three-tier engine | P0 | 1 | pending |",
+    "| IDEATE-03 | Pattern mining | P0 | 1 | covered |",
+    "| MULTI-01 | Config migration | P0 | 2 | in_progress |",
+    "| MULTI-02 | Project flag | P0 | 2 | pending |",
+    "",
+    "## Traceability",
+    "",
+    "| Requirement | Phase | Status |",
+    "|-------------|-------|--------|",
+    "| IDEATE-01 | 1 | pending |",
+    "| IDEATE-02 | 1 | pending |",
+    "| IDEATE-03 | 1 | covered |",
+    "| MULTI-01 | 2 | in_progress |",
+    "| MULTI-02 | 2 | pending |",
+  ].join("\n"));
+
+  fs.writeFileSync(path.join(ciDir, "ROADMAP.md"), [
+    "# Roadmap",
+    "",
+    "## Overview",
+    "",
+    "Test project roadmap",
+    "",
+    "## Phases",
+    "",
+    "- [ ] **Phase 1: Core** - Build core ideation engine",
+    "- [ ] **Phase 2: Multi-Project** - Add multi-project support",
+    "",
+    "## Phase Details",
+    "",
+    "### Phase 1: Core",
+    "**Goal.**: Build core ideation engine",
+    "**Depends on**: Nothing",
+    "**Requirements**: IDEATE-01, IDEATE-02, IDEATE-03",
+    "**Success Criteria**:",
+    "1. Ideation command works",
+    '**Status**: not_started',
+    "",
+    "### Phase 2: Multi-Project",
+    '**Goal.**: Add multi-project support',
+    "**Depends on**: Phase 1",
+    "**Requirements**: MULTI-01, MULTI-02",
+    "**Success Criteria**:",
+    "1. Multi-project config works",
+    '**Status**: not_started',
+    "",
+  ].join("\n"));
+
+  fs.writeFileSync(path.join(ciDir, "ARCHITECTURE.md"), [
+    "# Architecture",
+    "",
+    "## Overview",
+    "",
+    "Test project architecture",
+    "",
+    "## Components",
+    "",
+    "### ideation-engine",
+    "- **Description**: Core ideation engine with 3 tiers",
+    "- **Boundaries**: No external dependencies",
+    "- **Depends on**: None",
+    "",
+    "### cli",
+    "- **Description**: Commander.js CLI entry point",
+    "- **Boundaries**: Terminal I/O only",
+    "- **Depends on**: ideation-engine",
+    "",
+    "### orchestrator",
+    "- **Description**: Pipeline controller",
+    "- **Boundaries**: Agent delegation",
+    "- **Depends on**: cli, ideation-engine",
+    "",
+    "## Data Flow",
+    "",
+    "CLI -> Engine -> Ideas",
+    "",
+    "## Build Order",
+    "",
+    "1. ideation-engine",
+    "2. cli",
+    "3. orchestrator",
+    "",
+  ].join("\n"));
+
+  fs.writeFileSync(path.join(ciDir, "config.json"), JSON.stringify({
+    projects: [],
+    active_project: "",
+    active_projects: [],
+    autonomy: { level: "full" },
+    ideation: {
+      enabled: true,
+      categories: ["security", "quality", "architecture", "coverage", "improvement"],
+      confidence_threshold: 0.6,
+      max_ideas: 20,
+    },
+  }, null, 2));
+
+  const srcDir = path.join(dir, "src");
+  fs.mkdirSync(srcDir, { recursive: true });
+  fs.writeFileSync(path.join(srcDir, "app.ts"), "export function main() { return 1; }");
+  fs.writeFileSync(path.join(srcDir, "app.test.ts"), "test('works', () => { expect(main()).toBe(1); });");
+}
+
+describe("E2E: Ideation Command (Mechanical Tier)", () => {
+  let dir: string;
+
+  beforeEach(() => {
+    dir = createTempDir();
+    initIdeationProject(dir);
+    initGitRepo(dir);
+    resetIdeaCounter();
+  });
+
+  afterEach(() => {
+    cleanup(dir);
+  });
+
+  describe("Mechanical ideation runs without errors", () => {
+    it("produces ideas from mechanical tier when requirements exist", () => {
+      const engine = new IdeationEngine(dir);
+      const ideas = engine.runMechanical();
+
+      expect(Array.isArray(ideas)).toBe(true);
+      expect(ideas.length).toBeGreaterThan(0);
+    });
+
+    it("identifies uncovered or partial requirements when they exist", () => {
+      const engine = new IdeationEngine(dir);
+      const ideas = engine.runMechanical();
+
+      const coverageIdeas = ideas.filter((i) => i.source === "uncovered_requirement" || i.source === "partial_requirement");
+      expect(coverageIdeas.length).toBeGreaterThanOrEqual(0);
+      if (coverageIdeas.length > 0) {
+        expect(coverageIdeas[0].category).toBe("coverage");
+        expect(coverageIdeas[0].tier).toBe("mechanical");
+      }
+    });
+
+    it("respects category filter", () => {
+      const engine = new IdeationEngine(dir);
+      const securityOnly = engine.runMechanical(["security"]);
+
+      for (const idea of securityOnly) {
+        expect(idea.category).toBe("security");
+      }
+    });
+
+    it("can filter by architecture category", () => {
+      const engine = new IdeationEngine(dir);
+      const ideas = engine.runMechanical(["architecture"]);
+
+      expect(Array.isArray(ideas)).toBe(true);
+      expect(ideas.length).toBeGreaterThanOrEqual(0);
+    });
+
+    it("identifies verification inversions when missing tests exist", () => {
+      const engine = new IdeationEngine(dir);
+      const ideas = engine.runMechanical(["quality"]);
+
+      const verificationIdeas = ideas.filter((i) => i.source === "verification_inversion");
+      expect(verificationIdeas.length).toBeGreaterThanOrEqual(0);
+    });
+
+    it("sorts ideas by confidence", () => {
+      const engine = new IdeationEngine(dir);
+      const ideas = engine.runMechanical();
+
+      for (let i = 1; i < ideas.length; i++) {
+        expect(ideas[i].confidence).toBeLessThanOrEqual(ideas[i - 1].confidence);
+      }
+    });
+
+    it("formats ideas as text", () => {
+      const engine = new IdeationEngine(dir);
+      const ideas = engine.runMechanical();
+      const text = engine.formatIdeas(ideas);
+
+      expect(text).toContain("Improvement Ideas:");
+      if (ideas.length > 0) {
+        expect(text).toContain("[");
+      }
+    });
+
+    it("formats ideas as JSON", () => {
+      const engine = new IdeationEngine(dir);
+      const ideas = engine.runMechanical();
+      const result = engine.formatIdeasJson(ideas);
+
+      expect(result.project).toBeDefined();
+      expect(result.summary.total).toBe(ideas.length);
+      expect(typeof result.summary.by_category).toBe("object");
+      expect(typeof result.summary.by_tier).toBe("object");
+    });
+  });
+
+  describe("Mechanical ideation produces specific signals", () => {
+    it("identifies uncovered requirements", () => {
+      const engine = new IdeationEngine(dir);
+      const ideas = engine.runMechanical();
+
+      const uncoveredIdeas = ideas.filter((i) => i.source === "uncovered_requirement");
+      expect(uncoveredIdeas.length).toBeGreaterThanOrEqual(0);
+      if (uncoveredIdeas.length > 0) {
+        expect(uncoveredIdeas[0].category).toBe("coverage");
+        expect(uncoveredIdeas[0].tier).toBe("mechanical");
+      }
+    });
+
+    it("identifies partial requirements", () => {
+      const engine = new IdeationEngine(dir);
+      const ideas = engine.runMechanical();
+
+      const partialIdeas = ideas.filter((i) => i.source === "partial_requirement");
+      expect(partialIdeas.length).toBeGreaterThanOrEqual(0);
+      if (partialIdeas.length > 0) {
+        expect(partialIdeas[0].relatedReq).toBe("MULTI-01");
+      }
+    });
+
+    it("identifies verification inversions (missing tests)", () => {
+      const engine = new IdeationEngine(dir);
+      const ideas = engine.runMechanical(["quality"]);
+
+      const verificationIdeas = ideas.filter((i) => i.source === "verification_inversion");
+      expect(verificationIdeas.length).toBeGreaterThanOrEqual(0);
+    });
+
+    it("formats ideas as text with source prefix", () => {
+      const engine = new IdeationEngine(dir);
+      const ideas = engine.runMechanical();
+      const text = engine.formatIdeas(ideas);
+
+      expect(text).toContain("Improvement Ideas:");
+      if (ideas.length > 0) {
+        expect(text).toContain("[");
+      }
+    });
+  });
+
+  describe("Accepting ideas", () => {
+    it("accepts ideas and adds to requirements/roadmap", () => {
+      const engine = new IdeationEngine(dir);
+      const ideas = engine.runMechanical().slice(0, 2);
+
+      const { accepted, results } = engine.acceptIdeas(ideas);
+
+      expect(accepted.length).toBeGreaterThan(0);
+      expect(results.length).toBe(accepted.length);
+      for (const result of results) {
+        expect(result.addedToRequirements || result.addedToRoadmap).toBe(true);
+      }
+    });
+  });
+
+  describe("Cascade impact analysis", () => {
+    it("runs affected analysis without errors", () => {
+      const engine = new IdeationEngine(dir);
+      const ideas = engine.runAffected();
+
+      expect(Array.isArray(ideas)).toBe(true);
+    });
+  });
+
+  describe("External signals", () => {
+    it("runs external analysis without errors", () => {
+      const engine = new IdeationEngine(dir);
+      const ideas = engine.runExternal();
+
+      expect(Array.isArray(ideas)).toBe(true);
+    });
+  });
+
+  describe("Cross-project analysis", () => {
+    it("runs cross-project analysis in multi-project setup", () => {
+      const ciDir = path.join(dir, ".ciagent");
+      const config = JSON.parse(fs.readFileSync(path.join(ciDir, "config.json"), "utf-8"));
+      config.projects = [
+        { slug: "test-project", name: "Test Project", default: true },
+        { slug: "other-project", name: "Other Project" },
+      ];
+      config.active_projects = ["test-project", "other-project"];
+      fs.writeFileSync(path.join(ciDir, "config.json"), JSON.stringify(config, null, 2));
+
+      fs.mkdirSync(path.join(ciDir, "other-project"), { recursive: true });
+      fs.writeFileSync(path.join(ciDir, "other-project", "PROJECT.md"), "# Other\n\n## What This Is\n\nOther project");
+
+      const engine = new IdeationEngine(dir, "test-project");
+      const ideas = engine.runCrossProject();
+
+      expect(Array.isArray(ideas)).toBe(true);
+    });
+  });
+
+  describe("Chaos scenarios", () => {
+    it("generates chaos scenario ideas", () => {
+      const engine = new IdeationEngine(dir);
+      const ideas = engine.generateChaosScenarios();
+
+      expect(Array.isArray(ideas)).toBe(true);
+      expect(ideas.length).toBeGreaterThan(0);
+      for (const idea of ideas) {
+        expect(idea.category).toBe("chaos");
+        expect(idea.source).toBe("chaos_scenario");
+        expect(idea.tier).toBe("backend-enriched");
+      }
+    });
+  });
+
+  describe("Spec analysis", () => {
+    it("runs spec analysis without errors", () => {
+      const engine = new IdeationEngine(dir);
+      const ideas = engine.runMechanical(["spec"]);
+
+      expect(Array.isArray(ideas)).toBe(true);
+    });
+
+    it("detects missing common categories in spec", () => {
+      const engine = new IdeationEngine(dir);
+      const ideas = engine.runMechanical(["spec"]);
+
+      const missingIdeas = ideas.filter((i) => i.source === "spec_missing");
+      expect(missingIdeas.length).toBeGreaterThanOrEqual(0);
+      if (missingIdeas.length > 0) {
+        expect(missingIdeas[0].category).toMatch(/^(spec|security|quality|architecture|coverage|improvement)$/);
+      }
+    });
+  });
+});
\ No newline at end of file
diff --git a/src/verification/e2e-multiproject.test.ts b/src/verification/e2e-multiproject.test.ts
new file mode 100644
index 0000000..3501ef7
--- /dev/null
+++ b/src/verification/e2e-multiproject.test.ts
@@ -0,0 +1,433 @@
+import * as fs from "node:fs";
+import * as path from "node:path";
+import * as os from "node:os";
+import { CIAgentFiles } from "../core/ciagent-files.js";
+import { CommitBuilder } from "../core/commit-builder.js";
+import { initCIAgent, loadConfig, saveConfig } from "../core/config.js";
+import { DEFAULT_CIAGENT_CONFIG } from "../types/config.js";
+
+function createTempDir(): string {
+  return fs.mkdtempSync(path.join(os.tmpdir(), "ciagent-e2e-multiproject-"));
+}
+
+function cleanup(dir: string): void {
+  fs.rmSync(dir, { recursive: true, force: true });
+}
+
+function setupMultiProject(dir: string): void {
+  const ciFiles = new CIAgentFiles(dir);
+  ciFiles.ensureCIDir();
+  ciFiles.addProject("task-api", "Task API", true);
+  ciFiles.addProject("auth-svc", "Auth Service");
+
+  const taskApiDir = path.join(dir, ".ciagent", "task-api");
+  fs.mkdirSync(taskApiDir, { recursive: true });
+  fs.writeFileSync(path.join(taskApiDir, "PROJECT.md"), [
+    "# Task API",
+    "",
+    "## What This Is",
+    "",
+    "A REST API for task management",
+    "",
+    "## Requirements",
+    "",
+    "### Active",
+    "",
+    "- CRUD operations for tasks",
+    "- Authentication",
+    "",
+    "### Validated",
+    "",
+    "### Out of Scope",
+    "",
+    "## Context",
+    "",
+    "Task management API",
+    "",
+    "## Constraints",
+    "",
+    "## Key Decisions",
+    "",
+    "| Decision | Rationale | Outcome |",
+    "|----------|-----------|---------|",
+  ].join("\n"));
+
+  fs.writeFileSync(path.join(taskApiDir, "REQUIREMENTS.md"), [
+    "# Requirements",
+    "",
+    "## v1 Requirements",
+    "",
+    "### Task API",
+    "",
+    "- TASK-01: Create task endpoint",
+    "- TASK-02: Read tasks endpoint",
+    "- TASK-03: Update task endpoint",
+    "",
+    "## Traceability",
+    "",
+    "| Requirement | Phase | Status |",
+    "|-------------|-------|--------|",
+    "| TASK-01 | 1 | pending |",
+    "| TASK-02 | 1 | pending |",
+    "| TASK-03 | 1 | pending |",
+  ].join("\n"));
+
+  fs.writeFileSync(path.join(taskApiDir, "ROADMAP.md"), [
+    "# Roadmap",
+    "",
+    "## Overview",
+    "",
+    "Task API roadmap",
+    "",
+    "## Phases",
+    "",
+    "- [ ] **Phase 1: Core** - Build task CRUD endpoints",
+    "",
+    "## Phase Details",
+    "",
+    "### Phase 1: Core",
+    "**Goal.**: Build task CRUD endpoints",
+    "**Depends on**: Nothing",
+    "**Requirements**: TASK-01, TASK-02",
+    "**Success Criteria**:",
+    "1. All CRUD operations work",
+    '**Status**: not_started',
+    "",
+  ].join("\n"));
+
+  fs.writeFileSync(path.join(taskApiDir, "ARCHITECTURE.md"), [
+    "# Architecture",
+    "",
+    "## Overview",
+    "",
+    "Task API architecture",
+    "",
+    "## Components",
+    "",
+    "### task-api",
+    "- **Description**: API server",
+    "- **Boundaries**: HTTP only",
+    "- **Depends on**: None",
+    "",
+    "## Data Flow",
+    "",
+    "Client -> API -> DB",
+    "",
+    "## Build Order",
+    "",
+    "1. task-api",
+    "",
+  ].join("\n"));
+
+  const authDir = path.join(dir, ".ciagent", "auth-svc");
+  fs.mkdirSync(authDir, { recursive: true });
+  fs.writeFileSync(path.join(authDir, "PROJECT.md"), [
+    "# Auth Service",
+    "",
+    "## What This Is",
+    "",
+    "Authentication and authorization service",
+    "",
+    "## Requirements",
+    "",
+    "### Active",
+    "",
+    "- JWT token generation",
+    "- Password hashing",
+    "",
+    "### Validated",
+    "",
+    "### Out of Scope",
+    "",
+    "## Context",
+    "",
+    "Authentication service",
+    "",
+    "## Constraints",
+    "",
+    "## Key Decisions",
+    "",
+    "| Decision | Rationale | Outcome |",
+    "|----------|-----------|---------|",
+  ].join("\n"));
+
+  fs.writeFileSync(path.join(authDir, "REQUIREMENTS.md"), [
+    "# Requirements",
+    "",
+    "## v1 Requirements",
+    "",
+    "### Auth",
+    "",
+    "- AUTH-01: JWT token generation",
+    "- AUTH-02: Password hashing",
+    "",
+    "## Traceability",
+    "",
+    "| Requirement | Phase | Status |",
+    "|-------------|-------|--------|",
+    "| AUTH-01 | 1 | pending |",
+    "| AUTH-02 | 1 | pending |",
+  ].join("\n"));
+
+  fs.writeFileSync(path.join(authDir, "ROADMAP.md"), [
+    "# Roadmap",
+    "",
+    "## Overview",
+    "",
+    "Auth Service roadmap",
+    "",
+    "## Phases",
+    "",
+    "- [ ] **Phase 1: Auth** - Implement JWT authentication",
+    "",
+    "## Phase Details",
+    "",
+    "### Phase 1: Auth",
+    "**Goal.**: Implement JWT authentication",
+    "**Depends on**: Nothing",
+    "**Requirements**: AUTH-01, AUTH-02",
+    "**Success Criteria**:",
+    "1. JWT tokens are generated correctly",
+    '**Status**: not_started',
+    "",
+  ].join("\n"));
+
+  fs.writeFileSync(path.join(authDir, "ARCHITECTURE.md"), [
+    "# Architecture",
+    "",
+    "## Overview",
+    "",
+    "Auth Service architecture",
+    "",
+    "## Components",
+    "",
+    "### auth-svc",
+    "- **Description**: Auth service",
+    "- **Boundaries**: Auth only",
+    "- **Depends on**: None",
+    "",
+    "## Data Flow",
+    "",
+    "Client -> Auth -> Token",
+    "",
+    "## Build Order",
+    "",
+    "1. auth-svc",
+    "",
+  ].join("\n"));
+
+  const config = loadConfig(dir);
+  config.active_projects = ["task-api", "auth-svc"];
+  saveConfig(dir, config);
+}
+
+describe("E2E: Multi-Project Execution", () => {
+  let dir: string;
+
+  beforeEach(() => {
+    dir = createTempDir();
+  });
+
+  afterEach(() => {
+    cleanup(dir);
+  });
+
+  describe("Project management", () => {
+    it("lists multiple registered projects", () => {
+      setupMultiProject(dir);
+
+      const ciFiles = new CIAgentFiles(dir);
+      const projects = ciFiles.listProjects();
+
+      expect(projects.length).toBeGreaterThanOrEqual(2);
+      const slugs = projects.map((p) => p.slug);
+      expect(slugs).toContain("task-api");
+      expect(slugs).toContain("auth-svc");
+    });
+
+    it("detects multi-project mode", () => {
+      setupMultiProject(dir);
+
+      const ciFiles = new CIAgentFiles(dir);
+      expect(ciFiles.isMultiProject()).toBe(true);
+    });
+
+    it("reads and writes per-project files", () => {
+      setupMultiProject(dir);
+
+      const taskFiles = new CIAgentFiles(dir, "task-api");
+      const taskProject = taskFiles.readProjectMd();
+      expect(taskProject).not.toBeNull();
+      expect(taskProject!.name).toBe("Task API");
+
+      const authFiles = new CIAgentFiles(dir, "auth-svc");
+      const authProject = authFiles.readProjectMd();
+      expect(authProject).not.toBeNull();
+      expect(authProject!.name).toBe("Auth Service");
+    });
+
+    it("reads per-project requirements", () => {
+      setupMultiProject(dir);
+
+      const taskFiles = new CIAgentFiles(dir, "task-api");
+      const taskReqs = taskFiles.readRequirementsMd();
+      expect(taskReqs).not.toBeNull();
+
+      const authFiles = new CIAgentFiles(dir, "auth-svc");
+      const authReqs = authFiles.readRequirementsMd();
+      expect(authReqs).not.toBeNull();
+    });
+
+    it("reads per-project roadmap", () => {
+      setupMultiProject(dir);
+
+      const taskFiles = new CIAgentFiles(dir, "task-api");
+      const taskRoadmap = taskFiles.readRoadmapMd();
+      expect(taskRoadmap).not.toBeNull();
+      expect(taskRoadmap!.phases.length).toBeGreaterThan(0);
+    });
+
+    it("reads per-project architecture", () => {
+      setupMultiProject(dir);
+
+      const taskFiles = new CIAgentFiles(dir, "task-api");
+      const taskArch = taskFiles.readArchitectureMd();
+      expect(taskArch).not.toBeNull();
+      expect(taskArch!.components.length).toBeGreaterThan(0);
+    });
+  });
+
+  describe("Config with active_projects", () => {
+    it("stores active_projects array in config", () => {
+      setupMultiProject(dir);
+
+      const config = loadConfig(dir);
+      expect(config.active_projects).toContain("task-api");
+      expect(config.active_projects).toContain("auth-svc");
+      expect(config.active_projects.length).toBe(2);
+    });
+
+    it("max_concurrent_projects is configurable", () => {
+      initCIAgent(dir, {
+        parallelization: {
+          ...DEFAULT_CIAGENT_CONFIG.parallelization,
+          max_concurrent_projects: 5,
+        },
+      });
+
+      const config = loadConfig(dir);
+      expect(config.parallelization.max_concurrent_projects).toBe(5);
+    });
+
+    it("default max_concurrent_projects is 3", () => {
+      expect(DEFAULT_CIAGENT_CONFIG.parallelization.max_concurrent_projects).toBe(3);
+    });
+  });
+
+  describe("Commit message project tracking", () => {
+    it("includes project in ---ci--- block for task commit", () => {
+      const msg = CommitBuilder.buildTaskCommit({
+        type: "feat",
+        phase: 1,
+        milestone: "v0.10",
+        project: "task-api",
+        plan: "01-auth",
+        task: "01-01",
+        subject: "implement JWT token generation",
+        status: "execute",
+      });
+
+      expect(msg).toContain("---ci---");
+      expect(msg).toContain("project: task-api");
+      expect(msg).toContain("phase: 1");
+      expect(msg).toContain("milestone: v0.10");
+      expect(msg).toContain("status: execute");
+    });
+
+    it("includes project in ---ci--- block for init commit", () => {
+      const msg = CommitBuilder.buildInitCommit({
+        projectName: "Auth Service",
+        phaseCount: 2,
+        milestone: "v0.10",
+        project: "auth-svc",
+        specification: "Authentication and authorization service",
+      });
+
+      expect(msg).toContain("---ci---");
+      expect(msg).toContain("project: auth-svc");
+      expect(msg).toContain("phase: 0");
+    });
+
+    it("different projects produce different commit scopes", () => {
+      const taskMsg = CommitBuilder.buildTaskCommit({
+        type: "feat",
+        phase: 1,
+        milestone: "v0.10",
+        project: "task-api",
+        plan: "01",
+        task: "01",
+        subject: "create task endpoint",
+        status: "execute",
+      });
+
+      const authMsg = CommitBuilder.buildTaskCommit({
+        type: "feat",
+        phase: 1,
+        milestone: "v0.10",
+        project: "auth-svc",
+        plan: "01",
+        task: "01",
+        subject: "JWT token generation",
+        status: "execute",
+      });
+
+      expect(taskMsg).toContain("task-api/");
+      expect(taskMsg).toContain("project: task-api");
+      expect(authMsg).toContain("auth-svc/");
+      expect(authMsg).toContain("project: auth-svc");
+    });
+  });
+
+  describe("Per-project ideation", () => {
+    it("runs ideation engine with project slug", () => {
+      setupMultiProject(dir);
+
+      const { IdeationEngine, resetIdeaCounter } = require("../core/ideation.js");
+      resetIdeaCounter();
+
+      const taskEngine = new IdeationEngine(dir, "task-api");
+      const taskIdeas = taskEngine.runMechanical();
+
+      expect(Array.isArray(taskIdeas)).toBe(true);
+      expect(taskIdeas.length).toBeGreaterThan(0);
+
+      resetIdeaCounter();
+
+      const authEngine = new IdeationEngine(dir, "auth-svc");
+      const authIdeas = authEngine.runMechanical();
+
+      expect(Array.isArray(authIdeas)).toBe(true);
+      expect(authIdeas.length).toBeGreaterThan(0);
+    });
+
+    it("produces different ideas for different projects", () => {
+      setupMultiProject(dir);
+
+      const { IdeationEngine, resetIdeaCounter } = require("../core/ideation.js");
+      resetIdeaCounter();
+
+      const taskEngine = new IdeationEngine(dir, "task-api");
+      const taskIdeas = taskEngine.runMechanical();
+      const taskTitles = new Set(taskIdeas.map((i: any) => i.title));
+
+      resetIdeaCounter();
+
+      const authEngine = new IdeationEngine(dir, "auth-svc");
+      const authIdeas = authEngine.runMechanical();
+      const authTitles = new Set(authIdeas.map((i: any) => i.title));
+
+      expect(taskTitles.size).toBeGreaterThan(0);
+      expect(authTitles.size).toBeGreaterThan(0);
+    });
+  });
+});
\ No newline at end of file
diff --git a/src/version.ts b/src/version.ts
index 25206c9..98e7400 100644
--- a/src/version.ts
+++ b/src/version.ts
@@ -1 +1 @@
-export const VERSION = "0.9.0";
\ No newline at end of file
+export const VERSION = "0.10.0";
\ No newline at end of file