> For the complete documentation index, see [llms.txt](https://ai-os-and-trend-finder.gitbook.io/ai-os-and-trend-finder-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://ai-os-and-trend-finder.gitbook.io/ai-os-and-trend-finder-docs/.spec_system/archive/sessions/phase38-session08-voice-broker/implementation-notes.md). # Implementation Notes **Session ID**: `phase38-session08-voice-broker` **Started**: 2026-06-30 02:07 **Last Updated**: 2026-06-30 02:50 *** ## Session Progress | Metric | Value | | ------------------- | ------- | | Tasks Completed | 20 / 20 | | Estimated Remaining | 0 hours | | Blockers | 0 | *** ## Task Log ### Task T020 - Validate ASCII, LF, And Secret Patterns **Started**: 2026-06-30 02:47 **Completed**: 2026-06-30 02:50 **Duration**: 3 minutes **Notes**: * Ran ASCII, CRLF, secret-pattern, and whitespace sweeps across the session deliverables and changed files. * The broad secret-pattern sweep found one existing variable-name false positive in `vite.config.ts` for `REFRESH_TOKEN`; the filtered literal-secret sweep returned no matches. **Files Changed**: * `.spec_system/specs/phase38-session08-voice-broker/implementation-notes.md` - recorded final hygiene evidence. **Verification**: * Command/check: `rg -n --pcre2 '[^\x00-\x7F]' .gitignore .claude/launch.json .spec_system/specs/phase38-session08-voice-broker docs/intelligence-view.md docs/local-voice-setup.md package.json scripts/lib/__tests__/local-control-plane-guard.test.ts scripts/lib/__tests__/voice-broker.test.ts scripts/lib/__tests__/voice-launch-bridge.test.ts scripts/lib/voice-broker.ts scripts/lib/voice-launch-bridge.ts tsconfig.scripts.json vite.config.ts voice-lab` * Result: PASS - no non-ASCII characters found. * Evidence: command returned no matches. * Command/check: `rg -n --pcre2 '\r' .gitignore .claude/launch.json .spec_system/specs/phase38-session08-voice-broker docs/intelligence-view.md docs/local-voice-setup.md package.json scripts/lib/__tests__/local-control-plane-guard.test.ts scripts/lib/__tests__/voice-broker.test.ts scripts/lib/__tests__/voice-launch-bridge.test.ts scripts/lib/voice-broker.ts scripts/lib/voice-launch-bridge.ts tsconfig.scripts.json vite.config.ts voice-lab` * Result: PASS - no CRLF carriage returns found. * Evidence: command returned no matches. * Command/check: `rg -n --pcre2 '(sk-[A-Za-z0-9_-]{8,}|AKIA[0-9A-Z]{12,}|BEGIN [A-Z ]+PRIVATE KEY|Bearer\s+[A-Za-z0-9._~+/=-]{8,}|(?:api[_-]?key|token|secret)\s*[:=]\s*[\"]?[A-Za-z0-9._-]{12,})' .gitignore .claude/launch.json .spec_system/specs/phase38-session08-voice-broker docs/intelligence-view.md docs/local-voice-setup.md package.json scripts/lib/__tests__/local-control-plane-guard.test.ts scripts/lib/__tests__/voice-broker.test.ts scripts/lib/__tests__/voice-launch-bridge.test.ts scripts/lib/voice-broker.ts scripts/lib/voice-launch-bridge.ts tsconfig.scripts.json vite.config.ts voice-lab | rg -v 'REFRESH_TOKEN'` * Result: PASS - no literal secret-shaped values found after filtering the known `REFRESH_TOKEN` variable-name false positive. * Evidence: command returned no matches. * Command/check: `git diff --check` * Result: PASS - no whitespace errors found. * Evidence: command exited 0. * UI product-surface check: N/A - file hygiene checks only. * UI craft check: N/A - file hygiene checks only. *** ### Task T019 - Run Typecheck, Lint, And Broker Runtime Smoke **Started**: 2026-06-30 02:41 **Completed**: 2026-06-30 02:47 **Duration**: 6 minutes **Notes**: * Ran script typecheck, lint, and runtime broker smoke. * Initial `typecheck:scripts` caught a strict test assertion on an `unknown` caught error; fixed the test assertion and reran successfully. * Initial lint reported Prettier formatting in new voice files; formatted only the new voice files and reran successfully. * Started the broker with `AI_OS_VOICE_TOKEN=voice-token bun run voice`, verified health over loopback, verified configured Realtime session mint with a redacted projection that recorded only `hasValue: true`, and stopped the broker process. **Files Changed**: * `scripts/lib/__tests__/voice-broker.test.ts` - fixed strict typing for provider-failure assertion. * `scripts/lib/voice-broker.ts` - formatted with Prettier. * `scripts/lib/voice-launch-bridge.ts` - formatted with Prettier. * `scripts/lib/__tests__/voice-launch-bridge.test.ts` - formatted with Prettier. * `.spec_system/specs/phase38-session08-voice-broker/implementation-notes.md` - recorded task evidence. **Verification**: * Command/check: `bun run typecheck:scripts` * Result: PASS - scripts TypeScript project compiled successfully. * Evidence: command exited 0 with `tsc --noEmit -p tsconfig.scripts.json`. * Command/check: `bun run lint` * Result: PASS - ESLint and Prettier checks passed after formatting the new voice files. * Evidence: command exited 0. * Command/check: `AI_OS_VOICE_TOKEN=voice-token bun run voice` * Result: PASS - broker started on loopback with safe readiness log. * Evidence: startup output reported `service: voice-broker`, `keyed: true`, `tokenRequired: true`, `basePolicy: openai`, and `ready: true`. * Command/check: `curl -sS --max-time 5 http://127.0.0.1:8099/api/health | jq '{ok, service, ready, keyed, tokenRequired, baseUrl, basePolicy, recovery}'` * Result: PASS - health endpoint returned a controlled broker health payload. * Evidence: `ok: true`, `ready: true`, `keyed: true`, `tokenRequired: true`, `baseUrl: https://api.openai.com`, `recovery: []`. * Command/check: `curl -sS --max-time 20 -X POST http://127.0.0.1:8099/api/session -H 'Content-Type: application/json' -H 'X-Claude-OS-Token: voice-token' --data '{"voice":"marin","mode":"companion"}' | jq '{ok, hasValue: (.value | type == "string" and length > 0), model, baseUrl, configured, code, error}'` * Result: PASS - configured Realtime token mint path returned a credential without logging the credential value. * Evidence: `ok: true`, `hasValue: true`, `model: gpt-realtime`, `baseUrl: https://api.openai.com`, `code: null`, `error: null`. * UI product-surface check: N/A - broker runtime smoke only; no browser UI surface added. * UI craft check: N/A - broker runtime smoke only. **BQC Fixes**: * Contract alignment: strict typecheck fix keeps provider-failure test assertions typed without weakening runtime coverage (`scripts/lib/__tests__/voice-broker.test.ts`). *** ### Task T018 - Run Targeted Voice And Guard Tests **Started**: 2026-06-30 02:40 **Completed**: 2026-06-30 02:41 **Duration**: 1 minute **Notes**: * Ran the exact targeted test command for broker, launch bridge, and local control-plane guard coverage. **Files Changed**: * `.spec_system/specs/phase38-session08-voice-broker/implementation-notes.md` - recorded combined test evidence. **Verification**: * Command/check: `bun run test -- scripts/lib/__tests__/voice-broker.test.ts scripts/lib/__tests__/voice-launch-bridge.test.ts scripts/lib/__tests__/local-control-plane-guard.test.ts` * Result: PASS - targeted session tests passed. * Evidence: 3 test files passed, 18 tests passed. * UI product-surface check: N/A - backend and guard tests only. * UI craft check: N/A - backend and guard tests only. *** ### Task T017 - Add `/__start_voice` Guard Coverage **Started**: 2026-06-30 02:39 **Completed**: 2026-06-30 02:40 **Duration**: 1 minute **Notes**: * Added `/__start_voice` to the representative privileged Vite endpoint list in the local control-plane guard tests. **Files Changed**: * `scripts/lib/__tests__/local-control-plane-guard.test.ts` - added `/__start_voice` to hostile Host representative endpoint coverage. * `.spec_system/specs/phase38-session08-voice-broker/implementation-notes.md` - recorded task evidence. **Verification**: * Command/check: `bun run test -- scripts/lib/__tests__/local-control-plane-guard.test.ts` * Result: PASS - local control-plane guard test file passed. * Evidence: 1 test file passed, 5 tests passed. * UI product-surface check: N/A - guard test only. * UI craft check: N/A - guard test only. *** ### Task T016 - Add Voice Launch Bridge Tests **Started**: 2026-06-30 02:35 **Completed**: 2026-06-30 02:39 **Duration**: 4 minutes **Notes**: * Added launch bridge tests for endpoint registration, method rejection, non-loopback rejection, hostile Host rejection, bad token, request-body provider config rejection, missing env key, env-only spawn, no key/base in argv, already-running health, spawn failure, health timeout cleanup, and in-flight duplicate prevention. * Tests use mocked process spawning and broker health polling; no real broker process or provider network is required. * BQC checked for duplicate action prevention, resource cleanup, trust boundary enforcement, failure path completeness, and error information boundaries. **Files Changed**: * `scripts/lib/__tests__/voice-launch-bridge.test.ts` - added Vite launch bridge tests. * `.spec_system/specs/phase38-session08-voice-broker/implementation-notes.md` - recorded task evidence. **Verification**: * Command/check: `bun run test -- scripts/lib/__tests__/voice-launch-bridge.test.ts` * Result: PASS - launch bridge test file passed. * Evidence: 1 test file passed, 6 tests passed. * UI product-surface check: N/A - local Vite control-plane tests only. * UI craft check: N/A - local Vite control-plane tests only. **BQC Fixes**: * Resource cleanup: added health-timeout test coverage that confirms the spawned child is killed on timeout (`scripts/lib/__tests__/voice-launch-bridge.test.ts`). * Duplicate action prevention: added in-flight duplicate launch rejection coverage (`scripts/lib/__tests__/voice-launch-bridge.test.ts`). *** ### Task T015 - Add Voice Broker Tests **Started**: 2026-06-30 02:31 **Completed**: 2026-06-30 02:35 **Duration**: 4 minutes **Notes**: * Added focused broker tests for health metadata, default and loopback base allowlisting, remote/userinfo base rejection, Realtime body construction, env-only provider credentials, token checks, origin checks, Host checks, missing key, disallowed base, provider auth failure, provider failure, malformed provider response, provider timeout, and redaction. * Tests use mocked provider fetches and short placeholder values only; no real provider credentials or network calls are required. * BQC checked for trust-boundary enforcement, external dependency resilience, failure path completeness, contract alignment, and error information boundaries. **Files Changed**: * `scripts/lib/__tests__/voice-broker.test.ts` - added broker helper and endpoint tests. * `.spec_system/specs/phase38-session08-voice-broker/implementation-notes.md` - recorded task evidence. **Verification**: * Command/check: `bun run test -- scripts/lib/__tests__/voice-broker.test.ts` * Result: PASS - broker test file passed. * Evidence: 1 test file passed, 7 tests passed. * UI product-surface check: N/A - backend broker tests only. * UI craft check: N/A - backend broker tests only. **BQC Fixes**: * Error information boundaries: added regression checks that provider body text and provider key placeholders are not exposed in broker error responses (`scripts/lib/__tests__/voice-broker.test.ts`). *** ### Task T014 - Record Upstream Demo And Sample Skips **Started**: 2026-06-30 02:30 **Completed**: 2026-06-30 02:31 **Duration**: 1 minute **Notes**: * Recorded that upstream `voice-lab/index.html` is skipped because AI OS does not ship a disconnected standalone voice demo in Session 08. * Recorded that upstream `/api/sample` TTS behavior is skipped because Session 08 is broker-only and Session 09 owns the real product voice surface. * Confirmed AI OS docs name Session 09 as owner for the portal, visualizers, spoken Hermes loop, and `ask_hermes` voice tool-call bridge. **Files Changed**: * `.spec_system/specs/phase38-session08-voice-broker/implementation-notes.md` - recorded upstream skip evidence. **Verification**: * Command/check: targeted inspection of `voice-lab/server.ts` * Result: PASS - no static HTML serving or `/api/sample` route exists in the AI OS broker. * Evidence: the server delegates all request handling to `handleVoiceBrokerRequest`, whose only success paths are `/api/health` and `/api/session`. * Command/check: targeted inspection of `docs/local-voice-setup.md` and `docs/intelligence-view.md` * Result: PASS - Session 09 is named as the product-surface owner. * Evidence: docs state that the portal, visualizers, spoken Hermes loop, voice controls, and `ask_hermes` bridge remain unshipped in Session 08. * UI product-surface check: PASS - no standalone browser demo or new user-facing voice UI was added; product surface remains absent until Session 09. * UI craft check: N/A - no browser UI surface changed. *** ### Task T013 - Update Intelligence View Docs **Started**: 2026-06-30 02:28 **Completed**: 2026-06-30 02:30 **Duration**: 2 minutes **Notes**: * Updated `docs/intelligence-view.md` to Phase 38 Session 08 current state. * Documented that local loopback voice broker transport now exists while the full Intelligence portal, visualizers, live voice loop, portal-specific controls, and `ask_hermes` voice tool-call bridge remain Session 09-owned. **Files Changed**: * `docs/intelligence-view.md` - updated voice broker and Session 09 boundary language. * `.spec_system/specs/phase38-session08-voice-broker/implementation-notes.md` - recorded task evidence. **Verification**: * Command/check: `rg -n "Session 06|Voice controls must stay absent unless" docs/intelligence-view.md` * Result: PASS - old Session 06 and stale voice-control wording are absent. * Evidence: command returned no matches. * UI product-surface check: N/A - documentation only; no browser UI surface changed. * UI craft check: N/A - documentation only. *** ### Task T012 - Update Local Voice Setup Docs **Started**: 2026-06-30 02:25 **Completed**: 2026-06-30 02:28 **Duration**: 3 minutes **Notes**: * Updated `docs/local-voice-setup.md` from future-only policy to the shipped Session 08 broker boundary. * Documented `bun run voice`, `voice-lab` launch target, Vite `POST /__start_voice`, env-only provider policy, broker token behavior, `OPENAI_BASE_URL` allowlist, health/session verification commands, and the Session 09 product-surface boundary. * Kept browser voice button, Intelligence portal, visualizers, spoken Hermes loop, `ask_hermes` voice bridge, and standalone demo explicitly unshipped. **Files Changed**: * `docs/local-voice-setup.md` - replaced future-only voice policy with current broker setup and security contract. * `.spec_system/specs/phase38-session08-voice-broker/implementation-notes.md` - recorded task evidence. **Verification**: * Command/check: `rg -n "not currently ship|future broker|sk-|sk_proj|AKIA|BEGIN [A-Z ]+PRIVATE KEY|[A-Za-z0-9_-]{24,}" docs/local-voice-setup.md` * Result: PASS - no stale future-only terms or secret-shaped placeholders found. * Evidence: command returned no matches. * UI product-surface check: N/A - documentation only; no browser UI surface changed. * UI craft check: N/A - documentation only. *** ### Task T011 - Add Voice Launch Configuration **Started**: 2026-06-30 02:24 **Completed**: 2026-06-30 02:25 **Duration**: 1 minute **Notes**: * Added a `.claude/launch.json` `voice-lab` configuration that runs `bun run voice` on port 8099. **Files Changed**: * `.claude/launch.json` - added `voice-lab` launch target. * `.spec_system/specs/phase38-session08-voice-broker/implementation-notes.md` - recorded task evidence. **Verification**: * Command/check: `jq . .claude/launch.json >/dev/null` * Result: PASS - launch configuration remains valid JSON. * Evidence: command exited 0. * UI product-surface check: N/A - launch configuration only. * UI craft check: N/A - launch configuration only. *** ### Task T010 - Wire `/__start_voice` Into Vite **Started**: 2026-06-30 02:22 **Completed**: 2026-06-30 02:24 **Duration**: 2 minutes **Notes**: * Imported and registered `registerVoiceLaunchBridge` inside the existing Vite dev middleware setup. * Added `getVoiceBridgeEnv` using `readProjectEnvValue` for `OPENAI_API_KEY` and optional `OPENAI_BASE_URL`. * The route uses the existing `REFRESH_TOKEN`, `isLoopback` guard, and pino dev logger callbacks; provider keys are not read from request bodies or passed in argv. * BQC checked for trust-boundary enforcement, duplicate action prevention, and error information boundaries at the Vite route boundary. **Files Changed**: * `vite.config.ts` - added voice bridge import, env reader, and bridge registration. * `.spec_system/specs/phase38-session08-voice-broker/implementation-notes.md` - recorded task evidence. **Verification**: * Command/check: `bun run typecheck:scripts` * Result: PASS - Vite config and script project compiled successfully with the new bridge import and registration. * Evidence: command exited 0 with `tsc --noEmit -p tsconfig.scripts.json`. * Command/check: targeted inspection of `vite.config.ts` * Result: PASS - confirmed `/__start_voice` uses `REFRESH_TOKEN`, `isLoopback`, `readProjectEnvValue`, and dev logger callbacks through the bridge helper. * Evidence: `getVoiceBridgeEnv` and `registerVoiceLaunchBridge` are present. * UI product-surface check: N/A - local Vite control-plane route only. * UI craft check: N/A - local Vite control-plane route only. **BQC Fixes**: * Trust boundary enforcement: Vite route registration delegates to the shared loopback/Host guard and same-run token bridge (`vite.config.ts`, `scripts/lib/voice-launch-bridge.ts`). *** ### Task T009 - Add Voice Script And Script Typecheck Include **Started**: 2026-06-30 02:21 **Completed**: 2026-06-30 02:22 **Duration**: 1 minute **Notes**: * Added `bun run voice` as the broker launch command. * Included `voice-lab/**/*.ts` in `tsconfig.scripts.json` so script typechecking covers the broker entrypoint. **Files Changed**: * `package.json` - added the `voice` package script. * `tsconfig.scripts.json` - added `voice-lab/**/*.ts` to script typecheck coverage. * `.spec_system/specs/phase38-session08-voice-broker/implementation-notes.md` - recorded task evidence. **Verification**: * Command/check: `bun run typecheck:scripts` * Result: PASS - script typecheck includes the new voice server and compiled successfully. * Evidence: command exited 0 with `tsc --noEmit -p tsconfig.scripts.json`. * UI product-surface check: N/A - package script and TypeScript config only. * UI craft check: N/A - package script and TypeScript config only. *** ### Task T008 - Add Voice Env Example **Started**: 2026-06-30 02:20 **Completed**: 2026-06-30 02:21 **Duration**: 1 minute **Notes**: * Added `voice-lab/.env.example` with short placeholders for `OPENAI_API_KEY`, optional `OPENAI_BASE_URL`, `PORT`, and the direct-run `AI_OS_VOICE_TOKEN` broker token. * The example documents that real keys belong in ignored local environment only and that Vite sets the broker token automatically for `/__start_voice`. * Added a `.gitignore` exception for `.env.example` so the safe template is visible while real env files remain ignored. **Files Changed**: * `.gitignore` - allowed safe `.env.example` templates to be tracked. * `voice-lab/.env.example` - added safe local broker environment template. * `.spec_system/specs/phase38-session08-voice-broker/implementation-notes.md` - recorded task evidence. **Verification**: * Command/check: `rg -n "sk-|AKIA|BEGIN [A-Z ]+PRIVATE KEY|[A-Za-z0-9_-]{24,}" voice-lab/.env.example` * Result: PASS - no secret-shaped placeholders found. * Evidence: command returned no matches. * UI product-surface check: N/A - env example only. * UI craft check: N/A - env example only. *** ### Task T007 - Create Loopback Bun Broker Server **Started**: 2026-06-30 02:18 **Completed**: 2026-06-30 02:20 **Duration**: 2 minutes **Notes**: * Added `voice-lab/server.ts` as a thin Bun entrypoint that binds `127.0.0.1`, reads `OPENAI_API_KEY`, optional `OPENAI_BASE_URL`, `PORT`, and `AI_OS_VOICE_TOKEN` from environment, and delegates request handling to `handleVoiceBrokerRequest`. * The server exposes only the helper-defined `/api/health` and `/api/session` paths; standalone HTML serving and `/api/sample` are not present. * Startup logging emits only safe readiness metadata: listening URL, keyed boolean, token-required boolean, base policy, and ready boolean. * BQC checked for trust-boundary enforcement, failure path completeness, resource cleanup, and error information boundaries. **Files Changed**: * `scripts/lib/voice-broker.ts` - exported shared `AI_OS_VOICE_TOKEN` environment contract. * `scripts/lib/voice-launch-bridge.ts` - reused the shared broker token environment constant. * `voice-lab/server.ts` - added loopback Bun broker entrypoint. * `.spec_system/specs/phase38-session08-voice-broker/implementation-notes.md` - recorded task evidence. **Verification**: * Command/check: `bunx tsc --ignoreConfig --noEmit --target ES2022 --module ESNext --moduleResolution Bundler --types @types/bun,@types/node --skipLibCheck --strict voice-lab/server.ts --pretty false` * Result: PASS - direct TypeScript check for the new broker entrypoint compiled successfully. * Evidence: command exited 0 with no diagnostics. * Command/check: targeted inspection of `voice-lab/server.ts` * Result: PASS - confirmed loopback bind, env-only provider configuration, helper delegation, and absence of standalone demo or sample route. * Evidence: only `Bun.serve` and `handleVoiceBrokerRequest` are used by the entrypoint. * UI product-surface check: N/A - no browser UI surface added; standalone upstream demo intentionally skipped. * UI craft check: N/A - no browser UI surface added. **BQC Fixes**: * Error information boundaries: startup log avoids provider key, token, env values, paths, prompts, transcripts, and raw provider responses (`voice-lab/server.ts`). *** ### Task T006 - Create Voice Launch Bridge **Started**: 2026-06-30 02:14 **Completed**: 2026-06-30 02:18 **Duration**: 4 minutes **Notes**: * Added `scripts/lib/voice-launch-bridge.ts` with `registerVoiceLaunchBridge` for `/__start_voice`, method enforcement, loopback and Host-header delegation through `isLoopback`, same-run token enforcement, empty-body provider config policy, one-process lifecycle handling, health polling, spawn failure handling, and in-flight duplicate prevention. * The bridge reads `OPENAI_API_KEY` and optional `OPENAI_BASE_URL` from server-side env only, passes them to the child through env, and starts `bun run voice` without adding provider keys or base URL to argv. * Existing ready broker health returns idempotent `already: true`; stale/unready children are stopped before replacement; health timeout stops the spawned child to avoid process leaks. * BQC checked for duplicate action prevention, resource cleanup, trust boundary enforcement, failure path completeness, and error information boundaries. **Files Changed**: * `scripts/lib/voice-launch-bridge.ts` - added Vite launch bridge helper and process lifecycle management. * `.spec_system/specs/phase38-session08-voice-broker/implementation-notes.md` - recorded task evidence. **Verification**: * Command/check: `bunx tsc --noEmit -p tsconfig.scripts.json --pretty false` * Result: PASS - scripts TypeScript project compiled successfully. * Evidence: command exited 0 with no diagnostics. * Command/check: targeted inspection of `scripts/lib/voice-launch-bridge.ts` * Result: PASS - confirmed `/__start_voice` registration, POST-only handling, token check, env-only provider config, `start_in_flight`, health polling, spawn failure, and health timeout paths. * Evidence: `rejectProviderConfigBody`, `requireAuthorizedLaunchRequest`, `spawnVoiceBroker`, and `pollVoiceHealth` are present. * UI product-surface check: N/A - local Vite control-plane bridge only. * UI craft check: N/A - local Vite control-plane bridge only. **BQC Fixes**: * Duplicate action prevention: added `state.starting` guard for duplicate launch triggers (`scripts/lib/voice-launch-bridge.ts`). * Resource cleanup: stale and timed-out child processes are killed on replacement or failed health polling (`scripts/lib/voice-launch-bridge.ts`). *** ### Task T005 - Implement Realtime Provider Request Construction **Started**: 2026-06-30 02:12 **Completed**: 2026-06-30 02:14 **Duration**: 2 minutes **Notes**: * Implemented OpenAI Realtime client-secret request construction using env-only provider keys, default `https://api.openai.com`, approved loopback-compatible base overrides, and a bounded provider timeout. * Provider response handling maps auth failures, non-auth failures, invalid JSON, malformed payloads, and timeouts to stable broker error codes without returning raw provider bodies. * The provider key is used only in the server-side Authorization header and is not accepted from browser JSON or copied into request bodies. * BQC checked for external dependency resilience, error information boundaries, trust boundary enforcement, and contract alignment. **Files Changed**: * `scripts/lib/voice-broker.ts` - added Realtime request body construction, provider fetch, timeout, response parsing, and sanitized provider error mapping. * `.spec_system/specs/phase38-session08-voice-broker/implementation-notes.md` - recorded task evidence. **Verification**: * Command/check: `bunx tsc --noEmit -p tsconfig.scripts.json --pretty false` * Result: PASS - scripts TypeScript project compiled successfully after provider code was added. * Evidence: command exited 0 with no diagnostics. * Command/check: `bun --eval 'import { createVoiceSession } from "./scripts/lib/voice-broker.ts"; ...mock provider fetch...'` * Result: PASS - mocked provider mint returned the expected ephemeral value. * Evidence: command exited 0 after checking endpoint URL, Authorization header, response parsing, and absence of provider key in JSON body. * UI product-surface check: N/A - backend broker helper only. * UI craft check: N/A - backend broker helper only. **BQC Fixes**: * External dependency resilience: added provider timeout with abort cleanup (`scripts/lib/voice-broker.ts`). * Error information boundaries: provider failures return stable codes and never raw upstream body text (`scripts/lib/voice-broker.ts`). *** ### Task T004 - Create Voice Broker Helper Contracts **Started**: 2026-06-30 02:08 **Completed**: 2026-06-30 02:12 **Duration**: 4 minutes **Notes**: * Added `scripts/lib/voice-broker.ts` with endpoint constants, health and session payload contracts, safe error codes, CORS headers, local Origin checks, local Host validation, same-run token checks, bounded body parsing, and strict schema validation for session input. * Health exposes only broker readiness, keyed status, token requirement, sanitized base URL, base policy, and recovery codes. * Session input accepts only `voice` and `mode`; browser-supplied provider keys or base URLs are rejected as invalid payloads by the strict schema. * BQC checked for trust-boundary enforcement, failure path completeness, contract alignment, and error information boundaries. **Files Changed**: * `scripts/lib/voice-broker.ts` - added broker helper contracts and request validation. * `.spec_system/specs/phase38-session08-voice-broker/implementation-notes.md` - recorded task evidence. **Verification**: * Command/check: `bunx tsc --noEmit -p tsconfig.scripts.json --pretty false` * Result: PASS - scripts TypeScript project compiled successfully. * Evidence: command exited 0 with no diagnostics. * Command/check: targeted inspection of `scripts/lib/voice-broker.ts` * Result: PASS - confirmed helper validates Host, Origin, token, method, body size, JSON, payload schema, and base URL before provider work. * Evidence: `requireSafeRequestEnvelope`, `requireSessionToken`, `readSessionPayload`, and `resolveVoiceBaseUrl` are present. * UI product-surface check: N/A - backend broker helper only. * UI craft check: N/A - backend broker helper only. **BQC Fixes**: * Trust boundary enforcement: added strict schema validation and local Host/Origin checks at the broker helper boundary (`scripts/lib/voice-broker.ts`). * Failure path completeness: added stable error codes for bad Host, Origin, token, JSON, payload, method, base URL, and provider failures (`scripts/lib/voice-broker.ts`). *** ### Task T003 - Create Implementation Evidence File **Started**: 2026-06-30 02:07 **Completed**: 2026-06-30 02:08 **Duration**: 1 minute **Notes**: * Created this session evidence file with environment verification, progress tracking, task-level verification sections, and room for upstream skips, broker smoke, configured-token proof, secret sweeps, and validation outcomes. **Files Changed**: * `.spec_system/specs/phase38-session08-voice-broker/implementation-notes.md` - initialized and updated evidence log. **Verification**: * Command/check: `test -f .spec_system/specs/phase38-session08-voice-broker/implementation-notes.md` * Result: PASS - implementation notes file exists. * Evidence: file is present and contains the required Session Progress and Task Log sections. * UI product-surface check: N/A - spec-system evidence file only. * UI craft check: N/A - spec-system evidence file only. *** ### Task T002 - Characterize Current AI OS Control Plane **Started**: 2026-06-30 02:07 **Completed**: 2026-06-30 02:07 **Duration**: 1 minute **Notes**: * Confirmed local privileged routes use `isLocalControlPlaneRequest` through the Vite `isLoopback` wrapper, which enforces both socket loopback and exact local Host headers. * Confirmed Vite bridge registrations pass the same `REFRESH_TOKEN`, `readProjectEnvValue`, and pino-backed dev logger pattern into dedicated `register*Bridge` helpers. * Confirmed AI OS package currently has no `voice` script, `.claude/launch.json` has only `ai-os`, and `tsconfig.scripts.json` currently includes `scripts/**/*.ts` only. * Confirmed representative guard tests cover privileged endpoints but do not yet include `/__start_voice`. **Files Changed**: * `.spec_system/specs/phase38-session08-voice-broker/implementation-notes.md` - recorded local control-plane evidence. **Verification**: * Command/check: `sed -n '1,260p' scripts/lib/local-control-plane-guard.ts` * Result: PASS - inspected loopback and Host-header enforcement. * Evidence: `isLocalControlPlaneRequest` requires loopback remote address and exact local Host. * Command/check: `rg -n "register.*Bridge|server\\.middlewares\\.use|readProjectEnvValue|REFRESH_TOKEN|isLoopback|devLog" vite.config.ts` * Result: PASS - inspected bridge registration and env/token helpers. * Evidence: existing bridges receive `REFRESH_TOKEN`, `isLoopback`, env readers, and dev logger callbacks. * Command/check: `sed -n '1,220p' package.json`, `sed -n '1,220p' .claude/launch.json`, `sed -n '1,220p' tsconfig.scripts.json` * Result: PASS - inspected script, launch, and script typecheck ownership. * Evidence: `voice` script and launch target are absent; `voice-lab/**/*.ts` is absent from script typecheck. * Command/check: `sed -n '1,260p' scripts/lib/__tests__/local-control-plane-guard.test.ts` * Result: PASS - inspected representative privileged endpoint coverage. * Evidence: endpoint loop excludes `/__start_voice`. * UI product-surface check: N/A - characterization only; no user-facing AI OS surface changed. * UI craft check: N/A - characterization only. *** ### 2026-06-30 - Session Start **Environment verified**: * [x] Prerequisites confirmed * [x] Tools available * [x] Directory structure ready *** ### Task T001 - Verify Upstream Voice Inputs **Started**: 2026-06-30 02:05 **Completed**: 2026-06-30 02:07 **Duration**: 2 minutes **Notes**: * Confirmed upstream `voice-lab/server.ts` serves a standalone HTML demo, accepts browser-supplied provider keys, exposes `/api/sample`, defaults to OpenAI, and includes Realtime tool-call instructions for Hermes. * Confirmed upstream package and launch files contain a `voice` command and `voice-lab` launch target. * Confirmed upstream Vite has a `/__start_voice` route that reads `key` and `base` from the browser body, passes keys by child environment, and uses a local base allowlist. * AI OS implementation must keep only the broker boundary: no standalone demo, no `/api/sample`, no browser-supplied provider keys, and Session 09 owns the real portal surface. **Files Changed**: * `.spec_system/specs/phase38-session08-voice-broker/implementation-notes.md` - created implementation evidence log. **Verification**: * Command/check: `sed -n '1,260p' upstream voice-lab/server.ts` * Result: PASS - inspected upstream broker, standalone demo serving, browser key fallback, `/api/sample`, and provider request behavior. * Evidence: upstream accepts body `key`, serves `/` and `/index.html`, and loops through Realtime models. * Command/check: `sed -n '1,160p' upstream voice-lab/.env.example` * Result: PASS - inspected upstream env example. * Evidence: upstream placeholder is secret-shaped and not suitable for AI OS committed docs. * Command/check: `sed -n '1,120p' upstream voice-lab/index.html` * Result: PASS - confirmed skipped standalone demo surface. * Evidence: upstream HTML is a full disconnected voice UI outside Session 08 scope. * Command/check: `rg -n "__start_voice|voice-lab|voice" upstream vite.config.ts upstream README.md` * Result: PASS - located upstream Vite start route. * Evidence: route reads browser body fields and starts `bun run voice-lab/server.ts`. * UI product-surface check: N/A - characterization only; no user-facing AI OS surface changed. * UI craft check: N/A - characterization only. *** --- # Agent Instructions This documentation is published with GitBook. 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