### COMMIT 3 — 2026-03-27T00:00:00Z
**Branch:** feature-coding-assistant
**Milestone:** Phase 3 complete — Backend streaming layer. agenerate_stream() on all 14 backends + stream=True on graq_generate. 100 targeted tests pass. Patent scan clean.
**State:** WORKING
**Files Changed:**
- MODIFIED: `graqle/backends/base.py` — additive: agenerate_stream() non-abstract default (single-chunk yield for all 14 backends)
- MODIFIED: `graqle/backends/api.py` — additive: AnthropicBackend.agenerate_stream() native token streaming via client.messages.stream(), fallback to generate() on error
- MODIFIED: `graqle/backends/mock.py` — additive: MockBackend.agenerate_stream() word-by-word streaming for tests without API key
- MODIFIED: `graqle/plugins/mcp_dev_server.py` — additive: stream=True parameter on graq_generate tool + streaming branch in _handle_generate() via graph.areason_stream()
- CREATED: `tests/test_backends/test_streaming.py` — 6 tests (BaseBackend default single chunk, MockBackend word-by-word, 50-word → 10+ chunks)
- CREATED: `tests/test_generation/test_graq_generate_streaming.py` — 4 tests (stream=False, stream=True, chunks, tool definition)
- CREATED: `.gsm/decisions/ADR-113-agenerate-stream-default-impl.md` — non-abstract default streaming rationale
- CREATED: `.gsm/decisions/ADR-114-graq-generate-stream-param.md` — stream=True design, backend-agnostic rationale
- MODIFIED: `.gsm/index.md` — added ADR-113, ADR-114 entries
**Key Decisions:**
- ADR-113: agenerate_stream() NEVER abstract — would break all 14 backends. Default yields single chunk.
- ADR-114: stream=True calls graph.areason_stream() for chunks THEN graph.areason() for structured fields — two calls in Phase 3, acceptable
- All 14 backends work via BaseBackend.agenerate_stream() default; Anthropic gets native tokens
- patch graqle.cloud.credentials.load_credentials (local import) not graqle.plugins.mcp_dev_server.load_credentials
**Next:**
- [ ] Phase 4: T4.1 — Add `graq generate` CLI command to `cli/main.py`
- [ ] Phase 4: T4.2 — Add `graq edit` CLI command + `graq gen` alias
- [ ] Phase 4: T4.3 — Add `POST /api/generate` Studio endpoint with SSE streaming
- [ ] Phase 4: T4.4 — Wire `/generate` slash command in Studio `/chat`
- [ ] Phase 4: T4.5 — Validation loop: CLI + Studio tests pass
**Blockers:** None
