> 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/phase17-session07-war-room-worker-relay-and-catchup/implementation_summary.md).

# Implementation Summary

**Session ID**: `phase17-session07-war-room-worker-relay-and-catchup` **Package**: Cross-package (`packages/protocol`, `apps/warroom`) **Completed**: 2026-06-05 **Duration**: 1 hour

***

## Overview

Added protocol-owned Notice Board relay frame contracts and Worker support for sender-excluded Notice Board message relay, resolution relay, and bounded reconnect catch-up. The implementation preserves legacy War Room `remote_event`, `warroom_pending_catchup`, and `warroom_room_notice` behavior while keeping the optional external-transfer privacy boundary explicit.

***

## Deliverables

### Files Created

| File                                                                                               | Purpose                                                                                                                                                                |
| -------------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `packages/protocol/tests/warroomNoticeRelay.test.ts`                                               | Focused protocol tests for Notice Board relay contracts, parser failures, catch-up bounds, blocked fields, and safe filtering                                          |
| `apps/warroom/tests/noticeBoardRelay.test.ts`                                                      | Focused Worker tests for relay, resolution, catch-up, sender exclusion, persisted unsafe-history filtering, malformed frames, blocked fields, and legacy compatibility |
| `.spec_system/specs/phase17-session07-war-room-worker-relay-and-catchup/implementation-notes.md`   | Task-by-task implementation log and verification record                                                                                                                |
| `.spec_system/specs/phase17-session07-war-room-worker-relay-and-catchup/IMPLEMENTATION_SUMMARY.md` | Session closeout summary                                                                                                                                               |

### Files Modified

| File                                                                                             | Changes                                                                                                                       |
| ------------------------------------------------------------------------------------------------ | ----------------------------------------------------------------------------------------------------------------------------- |
| `packages/protocol/src/warroom.ts`                                                               | Added Notice Board relay frame types, strict validators, catch-up parser, safe notice filtering, and family labels            |
| `apps/warroom/src/index.ts`                                                                      | Added bounded Notice Board relay history, sender-excluded direct broadcasts, resolution state updates, and reconnect catch-up |
| `apps/warroom/README_warroom.md`                                                                 | Documented Notice Board relay frames, catch-up behavior, optional external-transfer boundary, and no-claim limits             |
| `packages/protocol/tests/warroom.test.ts`                                                        | Updated expected federation frame vocabulary                                                                                  |
| `.spec_system/specs/phase17-session07-war-room-worker-relay-and-catchup/tasks.md`                | Marked all session tasks complete                                                                                             |
| `.spec_system/specs/phase17-session07-war-room-worker-relay-and-catchup/implementation-notes.md` | Recorded task-by-task implementation and verification notes                                                                   |

***

## Technical Decisions

1. **Protocol-first validation**: Notice Board relay contracts live in `packages/protocol/src/warroom.ts`, and the Worker only handles frames after protocol parsing succeeds.
2. **Separate Notice Board history**: Notice Board relay uses `noticeBoardNotices` instead of the legacy `recentEvents` buffer so existing War Room catch-up remains stable.
3. **Direct Notice Board broadcasts**: `notice_board_message` and `notice_resolved` are broadcast directly to peers, not wrapped in `remote_event`, matching the local Notice Board event shape.
4. **Fail-closed catch-up**: persisted Notice Board history is filtered during hydrate, persist, and reconnect before any browser consumption.

***

## Test Results

| Command                                                                                                                                                                                    | Result                                                           |
| ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | ---------------------------------------------------------------- |
| `npm --workspace packages/protocol run typecheck`                                                                                                                                          | Passed                                                           |
| `npm --workspace apps/warroom run typecheck`                                                                                                                                               | Passed                                                           |
| `npx vitest run packages/protocol/tests/warroomNoticeRelay.test.ts packages/protocol/tests/warroom.test.ts apps/warroom/tests/noticeBoardRelay.test.ts apps/warroom/tests/warroom.test.ts` | Passed, 63 tests                                                 |
| ASCII/LF validation                                                                                                                                                                        | Passed across touched source, tests, docs, and session artifacts |

***

## Session Statistics

* **Tasks**: 22 completed
* **Files Created**: 4
* **Files Modified**: 6
* **Tests Added**: 15 focused tests across 2 new test files
* **Blockers**: 0


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://faction-os.gitbook.io/faction-os-docs/.spec_system/archive/sessions/phase17-session07-war-room-worker-relay-and-catchup/implementation_summary.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.
