nexus/.planning/phases/38-telegram-bridge/38-01-SUMMARY.md

phase	plan	subsystem	tags	requires	provides	affects	tech-stack	key-files	key-decisions	patterns-established	requirements-completed	duration	completed
38-telegram-bridge	01	api	telegram grammy long-polling bot chat relay	phase provides 36-voice-pipeline nexus-settings.ts with telegramToken schema field	grammY bot lifecycle (start/stop/isRunning) via telegramService factory Text message relay Telegram user message -> agent reply with [AgentName] prefix In-memory session map chatId:agentId -> conversationId POST /api/telegram/token endpoint (validate token via getMe, save, restart bot) GET /api/telegram/status endpoint Conditional auto-start of bot in app.ts when telegramToken is configured	38-02 (voice pipeline integration uses same telegramService) 38-03 (onboarding step that calls POST /telegram/token)	added patterns grammy@^2 telegramService(db) factory returns { start, stop, isRunning } — stateful module-level bot ref Route receives service instance as second param telegramRoutes(db, svc) deleteWebhook() called before bot.start() to clear any stale webhook registration bot.start() not awaited (never-resolving long-poll promise)	created modified server/src/services/telegram.ts server/src/routes/telegram.ts server/src/app.ts server/package.json pnpm-lock.yaml	telegramRoutes accepts service instance as second param (not module singleton) — enables testability and restart from token route bot variable assigned before handlers registered — allows bot.on() calls to reference the outer ref cleanly nexusSettingsService re-exported from telegram.ts removed — routes import directly from nexus-settings.ts to avoid circular potential	Service factory receives db, returns lifecycle object { start, stop, isRunning } — matches voicePipelineService pattern Long-polling: deleteWebhook first, then bot.start() fire-and-forget with catch logger	TGRAM-01 TGRAM-02 TGRAM-05 TGRAM-06	15min	2026-04-04

Phase 38 Plan 01: Telegram Bridge Core Summary

grammY long-polling bot with text relay, [AgentName] prefix, session map, and /api/telegram/token + /status management routes wired into app.ts

Performance

• Duration: ~15 min
• Started: 2026-04-04T02:59:18Z
• Completed: 2026-04-04T03:14:18Z
• Tasks: 2 of 2
• Files modified: 5

Accomplishments

• Installed grammY v2 and created telegramService(db) factory with full text relay handler
• Agent reply prefixed [AgentName]: per TGRAM-02; session map tracks chatId:agentId -> conversationId
• telegramRoutes provides POST /telegram/token (getMe validation) and GET /telegram/status
• app.ts auto-starts bot on server boot when telegramToken is present in nexus settings

Task Commits

1. Task 1: Install grammY, create telegramService + telegramRoutes - 8dbc7674 (feat)
2. Task 2: Wire telegram service and routes into app.ts - 3973fa08 (feat)

Files Created/Modified

• server/src/services/telegram.ts (187 lines) — grammY bot lifecycle, text relay, session map, agent prefix
• server/src/routes/telegram.ts — POST /telegram/token, GET /telegram/status
• server/src/app.ts — imports, route mount, conditional startup
• server/package.json — grammy dependency added
• pnpm-lock.yaml — lockfile updated

Decisions Made

• Route receives service instance as second param (telegramRoutes(db, svc)) rather than importing a singleton — enables the token route to call svc.stop() / svc.start() cleanly
• bot variable assigned at top of start() before handler registration so bot.on() uses the outer mutable ref
• nexusSettingsService import kept in app.ts directly (not re-exported from telegram.ts) to avoid any potential circular dependency

Deviations from Plan

None - plan executed exactly as written.

Issues Encountered

• Initial implementation used const newBot = new Bot(token) then newBot.on(...), which failed the bot.on.*message:text acceptance check. Refactored to assign bot = new Bot(token) directly so the outer ref is set before handler registration. TypeScript compiled cleanly throughout.

Known Stubs

None — text relay is fully wired to chatService and puterProxyService.

User Setup Required

None - no external service configuration required beyond providing a Telegram bot token via POST /api/telegram/token.

Next Phase Readiness

• telegramService is ready to accept voice handlers in Plan 02 (voice pipeline integration)
• Plan 03 onboarding step already exists and calls POST /telegram/token

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Phase: 38-telegram-bridge Completed: 2026-04-04