# GSD Session Report

**Generated:** 2026-04-21T22:33:11.666Z
**Project:** surfaces-bot
**Milestone:** v1.0 — Production-ready surfaces

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## Session Summary

**Duration:** Single session  
**Phase Progress:** Phase 04 implemented; current follow-up work is audit, stabilization, and platform bug localization  
**Plans Executed:** 0 formal GSD plans executed in this session; work was focused on post-implementation audit and cleanup  
**Commits Made:** 6

## Work Performed

### Phases Touched

- **Phase 04** — Matrix MVP follow-up after implementation:
  - completed audit of platform patches vs surface-owned responsibilities
  - removed dependence on local platform modifications for `chat_id`
  - switched Matrix integration to numeric `platform_chat_id` mapping on our side
  - cleaned transport layer to a thin adapter over upstream `AgentApi`
  - updated README and run instructions
  - produced final Russian bug report with raw-trace-based diagnosis

### Key Outcomes

- Platform repos are clean and synced to pinned upstream commits.
- Matrix real backend works with numeric surrogate `platform_chat_id`.
- `surfaces` transport layer no longer owns custom stream semantics.
- Final diagnosis was narrowed: missing-first-chunk bug is now considered platform-side with direct raw evidence.
- Working state was committed and pushed on `feat/matrix-direct-agent-prototype`.

### Decisions Made

- Do not patch vendored platform repos for the working implementation.
- Keep `surfaces` transport layer thin and upstream-aligned.
- Treat the current streaming bug as platform-side unless new evidence disproves it.
- Do not add new local stream workarounds that would blur responsibility.

## Files Changed

- `README.md`
- `adapter/matrix/bot.py`
- `sdk/agent_api_wrapper.py`
- `sdk/real.py`
- `tests/platform/test_real.py`
- `tests/adapter/matrix/test_dispatcher.py`
- `tests/core/test_integration.py`
- `docs/reports/2026-04-22-platform-streaming-final-bug-report-ru.md`

Planning / handoff artifacts updated:

- `.planning/HANDOFF.json`
- `.planning/phases/04-matrix-mvp-shared-agent-context-and-context-management-comma/.continue-here.md`
- `.planning/reports/20260422-session-report.md`

## Blockers & Open Items

- Platform-side streaming bug after tool/file flow.
- Duplicate `END` from platform.
- Image path failure on oversized `data:` URI.
- `tokens_used` remains unavailable from pinned upstream client.

## Estimated Resource Usage

| Metric | Estimate |
|--------|----------|
| Commits | 6 |
| Files changed | 8 code/docs files in the main deliverable, plus planning artifacts |
| Plans executed | 0 formal plans in this session |
| Subagents spawned | 0 |

> **Note:** Token and cost estimates require API-level instrumentation.
> These metrics reflect observable session activity only.

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### Recent Commits

- `0c2884c` — `refactor: use thin upstream transport adapter`
- `569824e` — `refactor: shrink agent api wrapper to thin adapter`
- `4d917ac` — `docs: add thin transport adapter plan`
- `3a3fcdc` — `docs: add thin transport adapter design`
- `7a2ad86` — `docs: clarify matrix file sending flow`
- `4524a6a` — `feat: finalize matrix platform audit and docs`

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*Generated by `$gsd-session-report`*