> For the complete documentation index, see [llms.txt](https://faction-os.gitbook.io/faction-os-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://faction-os.gitbook.io/faction-os-docs/.spec_system/archive/sessions/phase20-session05-campaign-dag-recovery/implementation_summary.md).

# Implementation Summary

**Session ID**: `phase20-session05-campaign-dag-recovery` **Package**: null **Completed**: 2026-06-28 **Duration**: 1.5 hours

***

## Overview

Phase 20 Session 05 delivered campaign DAG recovery. Approved executable campaign tasks now dispatch serially in dependency order, block dependent tasks when prerequisites fail or are unavailable, preserve queue and execution-run history across retry staging, and expose product-facing graph labels, retry controls, queue links, and execution links without broad raw command, output, diff, payload, token, or path leakage.

***

## Deliverables

### Files Created

| File                                                                                 | Purpose                                                                                                   | Lines |
| ------------------------------------------------------------------------------------ | --------------------------------------------------------------------------------------------------------- | ----- |
| `.spec_system/specs/phase20-session05-campaign-dag-recovery/spec.md`                 | Session specification and acceptance scope.                                                               | 214   |
| `.spec_system/specs/phase20-session05-campaign-dag-recovery/tasks.md`                | Completed 24-task checklist.                                                                              | 80    |
| `.spec_system/specs/phase20-session05-campaign-dag-recovery/implementation-notes.md` | Task evidence and verification ledger.                                                                    | 755   |
| `.spec_system/specs/phase20-session05-campaign-dag-recovery/code-review.md`          | Review findings and resolved fixes.                                                                       | 88    |
| `.spec_system/specs/phase20-session05-campaign-dag-recovery/security-compliance.md`  | Security and GDPR assessment.                                                                             | 98    |
| `.spec_system/specs/phase20-session05-campaign-dag-recovery/validation.md`           | Final PASS validation evidence.                                                                           | 214   |
| `apps/server/tests/planCampaignDagRecovery.test.ts`                                  | Acceptance coverage for dependency order, blocked dependents, retry filtering, and preserved run history. | 392   |

### Files Modified

| File                                                           | Changes                                                                                                                              |
| -------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------ |
| `packages/protocol/src/orchestrationCommandCenter.ts`          | Added safe DAG readiness fields and parser alignment for unavailable recovery state.                                                 |
| `packages/protocol/src/rest.ts`                                | Added DAG recovery task buckets to campaign workbench response contracts.                                                            |
| `packages/protocol/tests/orchestrationCommandCenter.test.ts`   | Added dependency, unavailable readiness, compact event, and raw-field rejection coverage.                                            |
| `apps/server/src/managers/orchestrationCommandCenter.ts`       | Propagated command-center manager response state needed by DAG recovery.                                                             |
| `apps/server/src/managers/planCampaignManager.ts`              | Added topological scheduling, dependency blocking, full-DAG state derivation, retry staging, idempotency, and history preservation.  |
| `apps/server/src/routes/commandCenter.ts`                      | Broadcast campaign, task, queue, and execution changes from DAG dispatch and retry responses.                                        |
| `apps/server/tests/planCampaignManager.test.ts`                | Covered dependency order, cycle and unknown dependency blocking, partial failure, unavailable prerequisites, retry, and idempotency. |
| `apps/server/tests/commandCenterRoutes.test.ts`                | Covered REST/WebSocket DAG dispatch, retry, safe events, and privacy boundaries.                                                     |
| `apps/web/src/lib/orchestrationApi.ts`                         | Validated DAG response buckets and preserved execution links in parsed campaign responses.                                           |
| `apps/web/src/lib/commandCenterUi.ts`                          | Sorted graph rows by dependency order and added blocked, waiting, retryable, failed, unavailable, and completed labels.              |
| `apps/web/src/components/orchestration/CampaignWorkbench.tsx`  | Rendered dependency blocks, retry controls, queue links, and execution links with product-facing copy.                               |
| `apps/web/src/components/orchestration/OrchestrationShell.tsx` | Updated dispatch and retry toasts for DAG completion, blocked dependents, unavailable tasks, and retry outcomes.                     |
| `apps/web/tests/commandCenterUi.test.ts`                       | Covered DAG graph ordering, labels, action availability, and privacy-safe row models.                                                |
| `apps/web/tests/CommandCenterPanes.test.tsx`                   | Covered campaign graph retry controls and execution links without raw detail leakage.                                                |
| `apps/web/tests/orchestrationApi.test.ts`                      | Covered DAG response parsing and execution-link preservation.                                                                        |
| `apps/web/tests/OrchestrationPanel.test.tsx`                   | Covered shell dispatch/retry feedback and duplicate-trigger prevention.                                                              |
| `tests/e2e/orchestration-command-center.e2e.ts`                | Added desktop and mobile browser proof for blocked dependency inspection and retry.                                                  |
| `apps/server/README_server.md`                                 | Documented serial campaign DAG dispatch, retry staging, and dependency-block boundaries.                                             |
| `apps/web/README_web.md`                                       | Documented campaign graph execution states, retry UI, and privacy boundary.                                                          |
| `docs/api/README_api.md`                                       | Documented campaign dispatch and retry response semantics for dependency-aware execution.                                            |
| `.spec_system/state.json`                                      | Marked the session complete and cleared `current_session`.                                                                           |
| `.spec_system/PRD/phase_20/PRD_phase_20.md`                    | Updated Phase 20 progress and Session 05 completion tracking.                                                                        |
| `package.json`                                                 | Bumped root version from 0.1.171 to 0.1.172.                                                                                         |
| `package-lock.json`                                            | Bumped lockfile root version from 0.1.171 to 0.1.172.                                                                                |
| `README.md`                                                    | Updated visible version badge from 0.1.171 to 0.1.172.                                                                               |

***

## Technical Decisions

1. **Serial DAG scheduler**: The MVP keeps campaign execution deterministic by topological order and stable task order instead of claiming parallel orchestration.
2. **Manager-owned recovery state**: Dependency readiness, retryable buckets, mutation locks, idempotency, and campaign state derivation live in `PlanCampaignManager`.
3. **Retry stages work before dispatch**: `retryFailed` resets only failed or unavailable executable tasks, while the next dispatch creates fresh queue and execution evidence.
4. **Broad-summary privacy boundary**: Campaign rows, events, REST responses, docs, and tests expose compact outcomes and links only; scoped queue/execution detail remains separate.

***

## Test Results

| Metric              | Value                                  |
| ------------------- | -------------------------------------- |
| Full Vitest         | 3030 passed, 1 skipped, 0 failed       |
| Focused Vitest      | 125 passed, 0 failed                   |
| Playwright          | 8 passed, 0 failed                     |
| Format              | PASS                                   |
| Lint                | PASS                                   |
| Workspace typecheck | PASS                                   |
| Coverage            | Not measured by validation command set |

***

## Lessons Learned

1. DAG recovery must re-evaluate dependency-held executable tasks after prerequisites recover, not just failed roots.
2. Planning-only prerequisites are terminal dependency blocks for execution, not ordinary waiting states.
3. Retry documentation needs to distinguish reset/stage behavior from the follow-up dispatch that creates new execution evidence.

***

## Future Considerations

Items for future sessions:

1. Session 06 should reuse the DAG and scoped-evidence pattern when adding guarded file mutation core behavior.
2. Later executor-family sessions should keep retry buckets explicit so operators can distinguish blocked, unavailable, waiting, and retryable work.
3. Release evidence should continue scanning broad campaign, queue, event, and docs surfaces for raw command, output, diff, payload, token, and path leakage.

***

## Session Statistics

* **Tasks**: 24 completed
* **Files Created**: 8
* **Files Modified**: 25
* **Tests Added**: 9 files with new or updated automated coverage
* **Blockers**: 0 resolved


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