# Scratchpad — P5-003 Telegram Plugin

## Objective

Implement `@mosaicstack/telegram-plugin` by matching the established Discord plugin pattern with Telegraf + socket.io-client, add package docs, and pass package typecheck/lint.

## Requirements Source

- docs/PRD.md: Phase 5 remote control / Telegram plugin
- docs/TASKS.md: P5-003
- User task brief dated 2026-03-13

## Plan

1. Inspect Discord plugin behavior and package conventions
2. Add Telegram runtime dependencies if missing
3. Implement Telegram plugin with matching gateway event flow
4. Add README usage documentation
5. Run package typecheck and lint
6. Run code review and remediate findings
7. Commit, push, open PR, notify, remove worktree

## TDD Rationale

ASSUMPTION: No existing telegram package test harness or fixture coverage makes package-level TDD
disproportionate for this plugin scaffold task. Validation will rely on typecheck, lint, and
manual structural parity with the Discord plugin.

## Risks

- Telegram API typings may differ from Discord’s event shapes and require narrower guards.
- Socket event payloads may already include `role` in shared gateway expectations.

## Progress Log

- 2026-03-13: Loaded Mosaic/global/repo guidance, mission files, Discord reference implementation, and Telegram package scaffold.
- 2026-03-13: Added `telegraf` and `socket.io-client` to `@mosaicstack/telegram-plugin`.
- 2026-03-13: Implemented Telegram message forwarding, gateway streaming accumulation, response chunking, and package README.

## Verification Evidence

- `pnpm --filter @mosaicstack/telegram-plugin typecheck` → pass
- `pnpm --filter @mosaicstack/telegram-plugin lint` → pass
- `pnpm typecheck` → pass
- `pnpm lint` → pass

## Review

- Automated uncommitted review wrapper was invoked for the current delta.
- Manual review completed against Discord parity, gateway event contracts, and package docs; no additional blockers found.
