> 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/phase19-session01-protocol-and-events/implementation-notes.md).

# Implementation Notes

**Session ID**: `phase19-session01-protocol-and-events` **Package**: packages/protocol **Started**: 2026-06-26 01:03 **Last Updated**: 2026-06-26 02:05

***

## Session Progress

| Metric              | Value   |
| ------------------- | ------- |
| Tasks Completed     | 20 / 20 |
| Estimated Remaining | 0 hours |
| Blockers            | 0       |

***

## Task Log

### 2026-06-26 - Session Start

**Environment verified**:

* [x] Prerequisites confirmed with `.spec_system/scripts/check-prereqs.sh --json --env --package packages/protocol`
* [x] Tools available with `.spec_system/scripts/check-prereqs.sh --json --tools "node,npm"`
* [x] Directory structure ready for `phase19-session01-protocol-and-events`
* [x] BQC loaded for application-code tasks

**Environment notes**:

* Node is available as `v24.14.0`; the prose baseline in `.spec_system/CONVENTIONS.md` and the session spec says Node 26.2.0+. `packages/protocol/package.json` has no engine gate, so package typecheck and focused tests will be the enforcement evidence for this session.

***

### Task T001 - Verify Phase 19 PRD, session stub, protocol README, and protocol package boundaries

**Started**: 2026-06-26 01:03 **Completed**: 2026-06-26 01:04 **Duration**: 1 minute

**Notes**:

* Confirmed Phase 19 is a contract-first command-center phase and Session 01 owns protocol DTOs, parser helpers, REST aliases, WebSocket contracts, tests, and README updates before server or web wiring.
* Confirmed `packages/protocol` remains dependency-free, framework-independent, local-first, and the first stop for shared event, REST, and domain contracts.
* Confirmed unsupported executor and hosted families must use compact capability or unavailable states and avoid raw prompts, file contents, command bodies, provider payloads, tokens, and broad absolute paths.

**Files Changed**:

* `.spec_system/specs/phase19-session01-protocol-and-events/implementation-notes.md` - initialized progress log and recorded T001 evidence.
* `.spec_system/specs/phase19-session01-protocol-and-events/tasks.md` - added progress summary table for immediate task tracking.

**Verification**:

* Command/check: `rg -n "Phase 19|Orchestration Command Center|Session 01|protocol_and_events|protocol and events" .spec_system/PRD/PRD.md .spec_system/PRD/phase_19 -S`
  * Result: PASS - located Phase 19 master and session-specific sources, including `.spec_system/PRD/phase_19/PRD_phase_19.md` and `session_01_protocol_and_events.md`.
  * Evidence: search returned Phase 19 PRD overview, Session 01 section, and session stub references.
* Command/check: targeted inspection of `.spec_system/PRD/phase_19/PRD_phase_19.md`, `.spec_system/PRD/phase_19/session_01_protocol_and_events.md`, `packages/README_packages.md`, `packages/protocol/README_protocol.md`, `docs/README_docs.md`, `docs/adr/0001-local-first-npm-workspace.md`, `.spec_system/CONVENTIONS.md`, and `.spec_system/CONSIDERATIONS.md`
  * Result: PASS - package boundary and local-first constraints are clear.
  * Evidence: protocol-first ownership, no-claim boundaries, redaction requirements, and local-first npm workspace ADR all align with the session scope.
* UI product-surface check: N/A - task changed only spec artifacts.
* UI craft check: N/A - no user-facing UI changed.

***

### Task T002 - Inspect existing WebSocket, REST, queue, template, lineage, guarded-action, and plan contracts

**Started**: 2026-06-26 01:04 **Completed**: 2026-06-26 01:05 **Duration**: 1 minute

**Notes**:

* Confirmed `events.ts` uses tagged interfaces and a single `ServerEvent` union, with compact update frames for queue, templates, lineage, guarded actions, and suggestions.
* Confirmed `rest.ts` owns typed aliases, route capability vocabularies, compact unsupported status mapping, and general error envelopes.
* Confirmed current queue/template/lineage/guarded-action/plan modules expose const vocabularies and TypeScript interfaces with no runtime dependency.
* Confirmed parser/normalization style in `suggestions.ts` and `notices.ts`: fail-closed result objects, bounded strings, safe IDs, safe repo-relative path checks, and compact error details.

**Files Changed**:

* `.spec_system/specs/phase19-session01-protocol-and-events/implementation-notes.md` - recorded T002 compatibility evidence.
* `.spec_system/specs/phase19-session01-protocol-and-events/tasks.md` - updated task progress after evidence.

**Verification**:

* Command/check: targeted inspection of `packages/protocol/src/events.ts`, `packages/protocol/src/rest.ts`, `packages/protocol/src/taskQueue.ts`, `packages/protocol/src/agentTemplates.ts`, `packages/protocol/src/lineage.ts`, `packages/protocol/src/guardedActions.ts`, `packages/protocol/src/plans.ts`, `packages/protocol/src/suggestions.ts`, and `packages/protocol/src/notices.ts`
  * Result: PASS - compatibility constraints are identified before implementation.
  * Evidence: new event interfaces must be added to `ServerEvent` without modifying existing event shapes; REST additions should be aliases/envelopes; parser helpers should stay dependency-free and fail closed.
* Command/check: targeted inspection of `packages/protocol/tests/events.test.ts`, `packages/protocol/tests/rest.test.ts`, and `packages/protocol/tests/orchestration.test.ts`
  * Result: PASS - existing test style and compatibility coverage are clear.
  * Evidence: tests rely on `satisfies`, `expectTypeOf`, compact no-raw-field assertions, and direct union assignment to `ServerEvent`.
* UI product-surface check: N/A - task changed only spec artifacts.
* UI craft check: N/A - no user-facing UI changed.

***

### Task T003 - Create Phase 19 command-center protocol module scaffold

**Started**: 2026-06-26 01:05 **Completed**: 2026-06-26 01:07 **Duration**: 2 minutes

**Notes**:

* Added the dependency-free `orchestrationCommandCenter.ts` module scaffold.
* Added shared validation result, safe ID, timestamp, revision, string, boolean, array, and repo-relative path normalization helpers that later DTO families can reuse.
* Kept the file framework-independent and free of runtime dependencies.

**Files Changed**:

* `packages/protocol/src/orchestrationCommandCenter.ts` - created module scaffold and generic validation helpers.
* `.spec_system/specs/phase19-session01-protocol-and-events/implementation-notes.md` - recorded T003 evidence.
* `.spec_system/specs/phase19-session01-protocol-and-events/tasks.md` - updated task progress after evidence.

**Verification**:

* Command/check: `npm --workspace packages/protocol run typecheck`
  * Result: PASS - TypeScript accepted the new module scaffold.
  * Evidence: `tsc --noEmit` completed with exit code 0.
* Command/check: BQC spot check for trust boundary enforcement and contract alignment
  * Result: PASS - helper functions fail closed for invalid IDs, timestamps, revisions, booleans, strings, arrays, and unsafe paths.
  * Evidence: helpers return `invalid_orchestration_command_center_value` result objects instead of throwing or silently accepting malformed input.
* UI product-surface check: N/A - no user-facing UI changed.
* UI craft check: N/A - no user-facing UI changed.

***

### Task T004 - Define shared IDs, timestamps, revision, idempotency, capability, audit, compact error, and blocked-payload helpers

**Started**: 2026-06-26 01:07 **Completed**: 2026-06-26 01:10 **Duration**: 3 minutes

**Notes**:

* Added command-center capability, unavailable reason, compact error, blocked payload, actor, and target vocabularies.
* Added target, audit, mutation metadata, capability envelope, compact error, and blocked payload boundary interfaces.
* Added parser helpers and raw-field rejection for broad payload boundaries, including blocked raw prompt, command, diff, terminal output, file content, transcript, provider payload, token, secret, broad path, log, replay, export, and hosted-account fields.

**Files Changed**:

* `packages/protocol/src/orchestrationCommandCenter.ts` - added shared primitives, parser helpers, compact error mapping, idempotency normalization, and blocked-payload detection.
* `.spec_system/specs/phase19-session01-protocol-and-events/implementation-notes.md` - recorded T004 evidence.
* `.spec_system/specs/phase19-session01-protocol-and-events/tasks.md` - updated task progress after evidence.

**Verification**:

* Command/check: `npm --workspace packages/protocol run typecheck`
  * Result: PASS - TypeScript accepted the expanded shared primitives.
  * Evidence: `tsc --noEmit` completed with exit code 0.
* Command/check: BQC spot check for trust boundary enforcement, duplicate action prevention, error information boundaries, and contract alignment
  * Result: PASS - input helpers fail closed, idempotency/revision metadata is explicit, and compact errors expose stable codes without raw payload echoes.
  * Evidence: `rejectCommandCenterBlockedPayloadFields`, `parseCommandCenterCapabilityEnvelope`, `parseCommandCenterCompactError`, and `mapCommandCenterValidationToCompactError` return bounded structured results.
* UI product-surface check: N/A - no user-facing UI changed.
* UI craft check: N/A - no user-facing UI changed.

**BQC Fixes**:

* Trust boundary enforcement: added depth-limited blocked raw-field detection before later DTO parsers accept broad payloads (`packages/protocol/src/orchestrationCommandCenter.ts`).

***

### Task T005 - Define plan campaign and plan task DTOs with dependency, revision, owner, assignment, verification, and parser helpers

**Started**: 2026-06-26 01:10 **Completed**: 2026-06-26 01:13 **Duration**: 3 minutes

**Notes**:

* Added plan priority, verification status, campaign state, and task state vocabularies.
* Added `CommandCenterPlanCampaign` and `CommandCenterPlanTask` DTOs with owner, assignment, dependency IDs, blocked-by IDs, revision, timestamps, expected result, and verification status fields.
* Added parser helpers that reject raw payload fields and keep broad campaign/task shapes on compact summaries rather than prompt bodies.

**Files Changed**:

* `packages/protocol/src/orchestrationCommandCenter.ts` - added plan campaign/task vocabularies, DTOs, ID-array normalization, parser helpers, and prompt-field blocking.
* `.spec_system/specs/phase19-session01-protocol-and-events/implementation-notes.md` - recorded T005 evidence.
* `.spec_system/specs/phase19-session01-protocol-and-events/tasks.md` - updated task progress after evidence.

**Verification**:

* Command/check: `npm --workspace packages/protocol run typecheck`
  * Result: PASS - TypeScript accepted the plan campaign/task DTOs and parsers.
  * Evidence: `tsc --noEmit` completed with exit code 0.
* Command/check: BQC spot check for trust boundary enforcement and contract alignment
  * Result: PASS - `parseCommandCenterPlanCampaign` and `parseCommandCenterPlanTask` reject blocked raw fields and require valid IDs, states, verification statuses, revisions, and timestamps.
  * Evidence: broad campaign/task interfaces expose `summary` and `expectedResult`, not raw prompt bodies.
* UI product-surface check: N/A - no user-facing UI changed.
* UI craft check: N/A - no user-facing UI changed.

**BQC Fixes**:

* Error information boundaries: added `prompt` and `promptBody` to the shared blocked raw-field list so broad plan/task payloads cannot accept raw prompt bodies (`packages/protocol/src/orchestrationCommandCenter.ts`).

***

### Task T006 - Define attention item and permission request/decision DTOs

**Started**: 2026-06-26 01:13 **Completed**: 2026-06-26 01:17 **Duration**: 4 minutes

**Notes**:

* Added attention type/state, permission state/decision, and risk vocabularies.
* Added `CommandCenterAttentionItem`, `CommandCenterPermissionRequest`, and `CommandCenterPermissionDecision` DTOs with requester audit refs, targets, timeout, expected result, stale revision, idempotency, dedupe, duplicate, and in-flight fields.
* Added parser helpers that reject raw payload fields and validate risk, target, requester, timeout, revision, idempotency, and timestamp fields.

**Files Changed**:

* `packages/protocol/src/orchestrationCommandCenter.ts` - added attention and permission DTOs, vocabularies, guards, and parsers.
* `.spec_system/specs/phase19-session01-protocol-and-events/implementation-notes.md` - recorded T006 evidence.
* `.spec_system/specs/phase19-session01-protocol-and-events/tasks.md` - updated task progress after evidence.

**Verification**:

* Command/check: `npm --workspace packages/protocol run typecheck`
  * Result: PASS - TypeScript accepted attention and permission contracts.
  * Evidence: `tsc --noEmit` completed with exit code 0.
* Command/check: BQC spot check for duplicate action prevention, state freshness, failure path completeness, and trust boundary enforcement
  * Result: PASS - permission requests and decisions carry `idempotencyKey`, `dedupeKey`, `expectedRevision`, `duplicate`, and `staleRevision` fields; parsers reject malformed input and blocked raw fields.
  * Evidence: `parseCommandCenterPermissionRequest`, `parseCommandCenterPermissionDecision`, and `parseCommandCenterAttentionItem` validate all external-boundary fields.
* UI product-surface check: N/A - no user-facing UI changed.
* UI craft check: N/A - no user-facing UI changed.

***

### Task T007 - Define executor capability, family/kind, hero lifecycle command, and execution run DTOs

**Started**: 2026-06-26 01:17 **Completed**: 2026-06-26 01:22 **Duration**: 5 minutes

**Notes**:

* Added executor family/kind, hero lifecycle command/state, execution run state, and execution result status vocabularies.
* Added executor capability DTOs with unavailable, observe-only, proposal-only, executor-ready, executing, executed, and failed statuses through the shared capability status vocabulary.
* Added hero lifecycle command and execution run DTOs with revision, permission, requester, target, result status, failure, and unavailable reason fields.
* Kept execution contracts compact and state-oriented; no command bodies, terminal output, file contents, provider payloads, or raw execution output fields were added.

**Files Changed**:

* `packages/protocol/src/orchestrationCommandCenter.ts` - added executor, hero lifecycle, and execution run DTOs, vocabularies, guards, and parsers.
* `.spec_system/specs/phase19-session01-protocol-and-events/implementation-notes.md` - recorded T007 evidence.
* `.spec_system/specs/phase19-session01-protocol-and-events/tasks.md` - updated task progress after evidence.

**Verification**:

* Command/check: `npm --workspace packages/protocol run typecheck`
  * Result: PASS - TypeScript accepted executor, hero lifecycle, and execution run contracts.
  * Evidence: `tsc --noEmit` completed with exit code 0.
* Command/check: BQC spot check for failure path completeness, external dependency resilience, error information boundaries, and contract alignment
  * Result: PASS - capability and run DTOs model unavailable/failure states explicitly and parsers reject blocked raw payload fields.
  * Evidence: `parseCommandCenterExecutorCapability`, `parseCommandCenterHeroLifecycleCommand`, and `parseCommandCenterExecutionRun` validate compact state envelopes without raw execution data.
* UI product-surface check: N/A - no user-facing UI changed.
* UI craft check: N/A - no user-facing UI changed.

***

### Task T008 - Define file intent, workpad, evidence, verification attempt, review gate, and handoff DTOs

**Started**: 2026-06-26 01:22 **Completed**: 2026-06-26 01:29 **Duration**: 7 minutes

**Notes**:

* Added file intent, workpad, evidence, verification attempt, review gate, and handoff vocabularies and DTOs.
* Added parsers for each DTO family with safe repo-relative path validation for file intent and evidence source paths.
* Evidence and workpad DTOs carry summaries, labels, evidence IDs, and blocked category labels instead of raw file contents, terminal output, logs, transcripts, or artifacts.

**Files Changed**:

* `packages/protocol/src/orchestrationCommandCenter.ts` - added T008 DTO families, vocabularies, guards, and parsers.
* `.spec_system/specs/phase19-session01-protocol-and-events/implementation-notes.md` - recorded T008 evidence.
* `.spec_system/specs/phase19-session01-protocol-and-events/tasks.md` - updated task progress after evidence.

**Verification**:

* Command/check: `npm --workspace packages/protocol run typecheck`
  * Result: PASS - TypeScript accepted file intent, workpad, evidence, verification, review gate, and handoff contracts.
  * Evidence: `tsc --noEmit` completed with exit code 0.
* Command/check: BQC spot check for trust boundary enforcement, failure path completeness, and error information boundaries
  * Result: PASS - parsers reject unsafe paths, blocked raw fields, malformed states, and invalid blocked-content categories.
  * Evidence: `parseCommandCenterFileIntent`, `parseCommandCenterEvidenceArtifact`, `parseCommandCenterVerificationAttempt`, `parseCommandCenterReviewGate`, and `parseCommandCenterHandoff` validate compact metadata only.
* UI product-surface check: N/A - no user-facing UI changed.
* UI craft check: N/A - no user-facing UI changed.

***

### Task T009 - Define diagnostics, channel command, scope, usage metric, and notification readiness DTOs

**Started**: 2026-06-26 01:29 **Completed**: 2026-06-26 01:35 **Duration**: 6 minutes

**Notes**:

* Added compact diagnostic, channel, channel command, scope sort, usage metric, usage unit, and notification readiness vocabularies.
* Added bounded pagination, deterministic ordering metadata, scope filters, diagnostics, channel commands, usage metrics, and notification readiness DTOs.
* Added parsers that validate filters, counts, timestamps, paths, labels, families, statuses, page limits, and deterministic ordering metadata.

**Files Changed**:

* `packages/protocol/src/orchestrationCommandCenter.ts` - added T009 DTO families, vocabularies, guards, and parsers.
* `.spec_system/specs/phase19-session01-protocol-and-events/implementation-notes.md` - recorded T009 evidence.
* `.spec_system/specs/phase19-session01-protocol-and-events/tasks.md` - updated task progress after evidence.

**Verification**:

* Command/check: `npm --workspace packages/protocol run typecheck`
  * Result: PASS - TypeScript accepted diagnostics, channel, scope, usage, and notification contracts.
  * Evidence: `tsc --noEmit` completed with exit code 0.
* Command/check: BQC spot check for trust boundary enforcement, contract alignment, and error information boundaries
  * Result: PASS - parsers reject malformed filters, unsafe paths, unsupported statuses, page sizes above 100, non-deterministic ordering metadata, and blocked raw fields.
  * Evidence: `parseCommandCenterScopeFilters`, `parseCommandCenterDiagnostic`, `parseCommandCenterChannelCommand`, `parseCommandCenterUsageMetric`, and `parseCommandCenterNotificationReadiness` return compact validated shapes.
* UI product-surface check: N/A - no user-facing UI changed.
* UI craft check: N/A - no user-facing UI changed.

***

### Task T010 - Add compact WebSocket event payload interfaces for command-center update families

**Started**: 2026-06-26 01:35 **Completed**: 2026-06-26 01:39 **Duration**: 4 minutes

**Notes**:

* Added compact event entries and update events for plan, task, attention, executor, hero lifecycle, execution, permission, file intent, workpad, evidence, verification/review gate, handoff, diagnostic, channel command, and usage families.
* Added a `CommandCenterServerEvent` union for downstream WebSocket union wiring.
* Broad event entries carry IDs, states, counts, timestamps, safe relative paths, labels, and blocked category labels only.

**Files Changed**:

* `packages/protocol/src/orchestrationCommandCenter.ts` - added compact WebSocket event payload interfaces and `CommandCenterServerEvent`.
* `.spec_system/specs/phase19-session01-protocol-and-events/implementation-notes.md` - recorded T010 evidence.
* `.spec_system/specs/phase19-session01-protocol-and-events/tasks.md` - updated task progress after evidence.

**Verification**:

* Command/check: `npm --workspace packages/protocol run typecheck`
  * Result: PASS - TypeScript accepted compact event interfaces.
  * Evidence: `tsc --noEmit` completed with exit code 0.
* Command/check: BQC spot check for contract alignment and error information boundaries
  * Result: PASS - event entries are compact and omit raw prompts, command bodies, diffs, terminal output, file contents, transcript text, provider payloads, tokens, and hosted account data.
  * Evidence: event entry interfaces expose compact state fields, counts, IDs, safe `path`/`sourcePath`, labels, and blocked categories only.
* UI product-surface check: N/A - no user-facing UI changed.
* UI craft check: N/A - no user-facing UI changed.

***

### Task T011 - Wire compact WebSocket event interfaces into the server event union

**Started**: 2026-06-26 01:39 **Completed**: 2026-06-26 01:40 **Duration**: 1 minute

**Notes**:

* Imported `CommandCenterServerEvent` into `events.ts`.
* Appended the command-center event union to `ServerEvent` without modifying existing event interfaces or compatibility events.

**Files Changed**:

* `packages/protocol/src/events.ts` - wired command-center events into the server WebSocket union.
* `.spec_system/specs/phase19-session01-protocol-and-events/implementation-notes.md` - recorded T011 evidence.
* `.spec_system/specs/phase19-session01-protocol-and-events/tasks.md` - updated task progress after evidence.

**Verification**:

* Command/check: `npm --workspace packages/protocol run typecheck`
  * Result: PASS - TypeScript accepted the expanded `ServerEvent` union.
  * Evidence: `tsc --noEmit` completed with exit code 0.
* Command/check: targeted diff inspection of `packages/protocol/src/events.ts`
  * Result: PASS - existing event shapes were left intact; only a type import and union member were added.
  * Evidence: `ServerEvent` now includes `CommandCenterServerEvent`.
* UI product-surface check: N/A - no user-facing UI changed.
* UI craft check: N/A - no user-facing UI changed.

***

### Task T012 - Add REST aliases for planned command-center route families and capability envelopes

**Started**: 2026-06-26 01:40 **Completed**: 2026-06-26 01:44 **Duration**: 4 minutes

**Notes**:

* Added `orchestration-command-center`, `diagnostics`, `usage`, and `notifications` route families and mapped them to planned compact unsupported status.
* Added command-center REST family metadata and typed capability response, list response, and mutation response envelopes.
* Added per-family REST request and response aliases for campaigns, tasks, attention, executors, hero lifecycle, execution, permissions, file intents, workpads, evidence, verification, review gates, handoffs, diagnostics, channel commands, usage metrics, and notification readiness.

**Files Changed**:

* `packages/protocol/src/rest.ts` - added route family metadata and command-center REST aliases.
* `.spec_system/specs/phase19-session01-protocol-and-events/implementation-notes.md` - recorded T012 evidence.
* `.spec_system/specs/phase19-session01-protocol-and-events/tasks.md` - updated task progress after evidence.

**Verification**:

* Command/check: `npm --workspace packages/protocol run typecheck`
  * Result: PASS - TypeScript accepted REST route family and alias additions.
  * Evidence: `tsc --noEmit` completed with exit code 0.
* Command/check: BQC spot check for contract alignment and no schema drift
  * Result: PASS - REST aliases point at protocol DTOs and capability envelopes only; no runtime server route behavior or database schema was introduced.
  * Evidence: `CommandCenterListRestResponse`, `CommandCenterMutationRestResponse`, and per-family aliases are type-only contracts.
* UI product-surface check: N/A - no user-facing UI changed.
* UI craft check: N/A - no user-facing UI changed.

***

### Task T013 - Export command-center protocol module through the package barrel

**Started**: 2026-06-26 01:44 **Completed**: 2026-06-26 01:45 **Duration**: 1 minute

**Notes**:

* Exported `orchestrationCommandCenter.ts` through `packages/protocol/src/index.ts` so consumers can import from `@factionos/protocol`.

**Files Changed**:

* `packages/protocol/src/index.ts` - added the command-center module export.
* `.spec_system/specs/phase19-session01-protocol-and-events/implementation-notes.md` - recorded T013 evidence.
* `.spec_system/specs/phase19-session01-protocol-and-events/tasks.md` - updated task progress after evidence.

**Verification**:

* Command/check: `npm --workspace packages/protocol run typecheck`
  * Result: PASS - TypeScript accepted the package barrel export.
  * Evidence: `tsc --noEmit` completed with exit code 0.
* Command/check: BQC spot check for contract alignment
  * Result: PASS - the new module is available through the established public protocol export path.
  * Evidence: `export * from "./orchestrationCommandCenter.js";` is present in `src/index.ts`.
* UI product-surface check: N/A - no user-facing UI changed.
* UI craft check: N/A - no user-facing UI changed.

***

### Task T014 - Update protocol documentation for Phase 19 command-center ownership

**Started**: 2026-06-26 01:45 **Completed**: 2026-06-26 01:48 **Duration**: 3 minutes

**Notes**:

* Updated the protocol package layout to name `src/orchestrationCommandCenter.ts`.
* Added Phase 19 command-center ownership notes, unavailable-state semantics, blocked-payload boundaries, import guidance, REST alias layout, WebSocket union layout, and explicit non-runtime scope.

**Files Changed**:

* `packages/protocol/README_protocol.md` - documented Phase 19 command-center ownership and boundaries.
* `.spec_system/specs/phase19-session01-protocol-and-events/implementation-notes.md` - recorded T014 evidence.
* `.spec_system/specs/phase19-session01-protocol-and-events/tasks.md` - updated task progress after evidence.

**Verification**:

* Command/check: `npm --workspace packages/protocol run typecheck`
  * Result: PASS - code still typechecked after docs update.
  * Evidence: `tsc --noEmit` completed with exit code 0.
* Command/check: `rg -n "Phase 19 Command Center Ownership|orchestrationCommandCenter|CommandCenterServerEvent|raw prompts" packages/protocol/README_protocol.md packages/protocol/src/rest.ts packages/protocol/src/events.ts`
  * Result: PASS - README and wiring references are present.
  * Evidence: search found the new Phase 19 section, module layout bullet, blocked raw prompt boundary, event union reference, and REST alias reference.
* UI product-surface check: N/A - documentation only.
* UI craft check: N/A - no user-facing UI changed.

***

### Task T015 - Write vocabulary, parser, fixture, and path-safety tests for every new DTO family

**Started**: 2026-06-26 01:48 **Completed**: 2026-06-26 01:51 **Duration**: 3 minutes

**Notes**:

* Added focused command-center protocol tests covering vocabularies, type smoke checks, valid parser fixtures, invalid parser fixtures, path safety, blocked raw-field detection, and compact error envelopes.
* Valid fixtures cover target, audit, mutation metadata, capability envelope, compact error, blocked payload boundary, campaigns, tasks, attention, permissions, executors, hero lifecycle commands, execution runs, file intents, workpads, evidence, verification attempts, review gates, handoffs, pagination, ordering, scope filters, diagnostics, channel commands, usage metrics, and notification readiness.
* Invalid fixtures cover malformed enum values, invalid revisions, oversized page limits, unsafe paths, raw prompt fields, command bodies, terminal output, file contents, transcripts, provider payloads, and token fields.

**Files Changed**:

* `packages/protocol/tests/orchestrationCommandCenter.test.ts` - added command-center parser and safety coverage.
* `.spec_system/specs/phase19-session01-protocol-and-events/implementation-notes.md` - recorded T015 evidence.
* `.spec_system/specs/phase19-session01-protocol-and-events/tasks.md` - updated task progress after evidence.

**Verification**:

* Command/check: `npx vitest run packages/protocol/tests/orchestrationCommandCenter.test.ts`
  * Result: PASS - focused command-center tests passed.
  * Evidence: 1 test file passed, 7 tests passed.
* Command/check: BQC spot check for trust boundary enforcement, failure path completeness, and contract alignment
  * Result: PASS - tests assert valid DTO parsing and fail-closed rejection for malformed inputs, unsafe paths, and blocked raw fields.
  * Evidence: invalid fixture table covers every new parser family and blocked raw-payload boundaries.
* UI product-surface check: N/A - no user-facing UI changed.
* UI craft check: N/A - no user-facing UI changed.

***

### Task T016 - Write event union tests for every new WebSocket family and compact no-raw-field behavior

**Started**: 2026-06-26 01:51 **Completed**: 2026-06-26 01:54 **Duration**: 3 minutes

**Notes**:

* Extended `events.test.ts` with command-center WebSocket fixtures assigned to `ServerEvent`.
* Covered plan, task, attention, executor, hero lifecycle, execution, permission, file intent, workpad, evidence, verification/review gate, handoff, diagnostic, channel command, and usage update events.
* Added serialized no-raw-field assertions for raw prompts, command bodies, diffs, terminal output, file contents, provider payloads, tokens, absolute paths, and transcripts.

**Files Changed**:

* `packages/protocol/tests/events.test.ts` - added command-center event union and compactness coverage.
* `.spec_system/specs/phase19-session01-protocol-and-events/implementation-notes.md` - recorded T016 evidence.
* `.spec_system/specs/phase19-session01-protocol-and-events/tasks.md` - updated task progress after evidence.

**Verification**:

* Command/check: `npx vitest run packages/protocol/tests/events.test.ts`
  * Result: PASS - focused event tests passed.
  * Evidence: 1 test file passed, 15 tests passed.
* Command/check: BQC spot check for contract alignment and error information boundaries
  * Result: PASS - every new event family satisfies `ServerEvent` and broad frames omit raw sensitive fields.
  * Evidence: command-center event fixture list covers all 15 new update event types and serialized payload checks reject raw field names.
* UI product-surface check: N/A - no user-facing UI changed.
* UI craft check: N/A - no user-facing UI changed.

***

### Task T017 - Write REST alias and capability status tests for planned command-center route families

**Started**: 2026-06-26 01:54 **Completed**: 2026-06-26 01:57 **Duration**: 3 minutes

**Notes**:

* Extended `rest.test.ts` with command-center route family assertions, planned compact status mappings, capability response fixtures, list response fixtures, mutation response fixtures, permission decision request fixtures, and type-level alias coverage.
* Covered command-center aliases for campaigns, tasks, attention, executors, hero lifecycle, execution, permissions, file intents, workpads, evidence, verification, review gates, handoffs, diagnostics, channel commands, usage metrics, and notification readiness.

**Files Changed**:

* `packages/protocol/tests/rest.test.ts` - added command-center REST route family and alias coverage.
* `.spec_system/specs/phase19-session01-protocol-and-events/implementation-notes.md` - recorded T017 evidence.
* `.spec_system/specs/phase19-session01-protocol-and-events/tasks.md` - updated task progress after evidence.

**Verification**:

* Command/check: `npx vitest run packages/protocol/tests/rest.test.ts`
  * Result: PASS - focused REST tests passed.
  * Evidence: 1 test file passed, 8 tests passed.
* Command/check: BQC spot check for contract alignment and unavailable-state semantics
  * Result: PASS - REST route families map to planned compact statuses, and capability envelopes carry explicit unavailable state without implying server behavior.
  * Evidence: tests assert `orchestration-command-center`, `diagnostics`, `usage`, and `notifications` planned statuses and type-check command-center aliases.
* UI product-surface check: N/A - no user-facing UI changed.
* UI craft check: N/A - no user-facing UI changed.

***

### Task T018 - Add compatibility tests for guarded action, queue, template, and lineage payloads

**Started**: 2026-06-26 01:57 **Completed**: 2026-06-26 02:00 **Duration**: 3 minutes

**Notes**:

* Extended `orchestration.test.ts` with guarded-action update and lineage/mission-graph update compatibility fixtures.
* Existing queue and template tests remain in place and continue to typecheck current payloads against REST aliases and `ServerEvent`.
* Added compactness checks for guarded-action event proposals to avoid widening the existing broad event frame.

**Files Changed**:

* `packages/protocol/tests/orchestration.test.ts` - added guarded-action and lineage compatibility coverage.
* `.spec_system/specs/phase19-session01-protocol-and-events/implementation-notes.md` - recorded T018 evidence.
* `.spec_system/specs/phase19-session01-protocol-and-events/tasks.md` - updated task progress after evidence.

**Verification**:

* Command/check: `npx vitest run packages/protocol/tests/orchestration.test.ts`
  * Result: PASS - focused orchestration compatibility tests passed.
  * Evidence: 1 test file passed, 8 tests passed.
* Command/check: BQC spot check for contract alignment and error information boundaries
  * Result: PASS - current guarded action, queue, template, lineage, and mission graph payloads still satisfy exported protocol contracts and remain compact.
  * Evidence: fixtures assign to `ServerEvent`, REST aliases, and type-level template contracts without changing existing source DTOs.
* UI product-surface check: N/A - no user-facing UI changed.
* UI craft check: N/A - no user-facing UI changed.

***

### Task T019 - Run package typecheck and focused protocol tests

**Started**: 2026-06-26 02:00 **Completed**: 2026-06-26 02:02 **Duration**: 2 minutes

**Notes**:

* Ran the required package typecheck.
* Ran focused protocol tests for command-center DTOs/parsers, events, REST aliases, and orchestration compatibility.

**Files Changed**:

* `.spec_system/specs/phase19-session01-protocol-and-events/implementation-notes.md` - recorded T019 evidence.
* `.spec_system/specs/phase19-session01-protocol-and-events/tasks.md` - updated task progress after evidence.

**Verification**:

* Command/check: `npm --workspace packages/protocol run typecheck`
  * Result: PASS - package TypeScript typecheck passed.
  * Evidence: `tsc --noEmit` completed with exit code 0.
* Command/check: `npx vitest run packages/protocol/tests/orchestrationCommandCenter.test.ts packages/protocol/tests/events.test.ts packages/protocol/tests/rest.test.ts packages/protocol/tests/orchestration.test.ts`
  * Result: PASS - focused protocol tests passed.
  * Evidence: 4 test files passed, 38 tests passed.
* UI product-surface check: N/A - no user-facing UI changed.
* UI craft check: N/A - no user-facing UI changed.

***

### Task T020 - Validate ASCII and LF requirements

**Started**: 2026-06-26 02:02 **Completed**: 2026-06-26 02:05 **Duration**: 3 minutes

**Notes**:

* Ran Biome formatting on touched protocol source and test files before final encoding checks.
* Reran package typecheck and focused protocol tests after formatting.
* Validated ASCII-only content and LF line endings across modified protocol files and active session artifacts.

**Files Changed**:

* `.spec_system/specs/phase19-session01-protocol-and-events/implementation-notes.md` - recorded T020 evidence.
* `.spec_system/specs/phase19-session01-protocol-and-events/tasks.md` - updated final task progress and completion checklist.

**Verification**:

* Command/check: `npx biome format --write packages/protocol/src/orchestrationCommandCenter.ts packages/protocol/src/events.ts packages/protocol/src/rest.ts packages/protocol/src/index.ts packages/protocol/tests/orchestrationCommandCenter.test.ts packages/protocol/tests/events.test.ts packages/protocol/tests/rest.test.ts packages/protocol/tests/orchestration.test.ts`
  * Result: PASS - Biome formatted 8 files and fixed 4 files.
  * Evidence: command completed with exit code 0.
* Command/check: `npm --workspace packages/protocol run typecheck`
  * Result: PASS - package TypeScript typecheck passed after formatting.
  * Evidence: `tsc --noEmit` completed with exit code 0.
* Command/check: `npx vitest run packages/protocol/tests/orchestrationCommandCenter.test.ts packages/protocol/tests/events.test.ts packages/protocol/tests/rest.test.ts packages/protocol/tests/orchestration.test.ts`
  * Result: PASS - focused protocol tests passed after formatting.
  * Evidence: 4 test files passed, 38 tests passed.
* Command/check: ASCII and CRLF shell check across modified protocol files and active session artifacts
  * Result: PASS - all checked files are ASCII-only and LF-only.
  * Evidence: command printed `ASCII OK` and `LF OK`.
* UI product-surface check: N/A - no user-facing UI changed.
* UI craft check: N/A - no user-facing UI changed.

***

## Post-Completion Verification

* `npx biome lint packages/protocol/src/orchestrationCommandCenter.ts packages/protocol/src/events.ts packages/protocol/src/rest.ts packages/protocol/src/index.ts packages/protocol/tests/orchestrationCommandCenter.test.ts packages/protocol/tests/events.test.ts packages/protocol/tests/rest.test.ts packages/protocol/tests/orchestration.test.ts`
  * Result: PASS - Biome checked 8 files with no fixes applied.
* `git diff --check -- packages/protocol .spec_system/specs/phase19-session01-protocol-and-events`
  * Result: PASS - no whitespace errors reported.


---

# 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/phase19-session01-protocol-and-events/implementation-notes.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.