diff --git a/.agents/phases/todo/159_edit_and_resend_message/00_phase.md b/.agents/phases/complete/159_edit_and_resend_message/00_phase.md
similarity index 100%
rename from .agents/phases/todo/159_edit_and_resend_message/00_phase.md
rename to .agents/phases/complete/159_edit_and_resend_message/00_phase.md
diff --git a/.agents/phases/todo/159_edit_and_resend_message/01_edit_affordance_on_user_bubbles.md b/.agents/phases/complete/159_edit_and_resend_message/01_edit_affordance_on_user_bubbles.md
similarity index 100%
rename from .agents/phases/todo/159_edit_and_resend_message/01_edit_affordance_on_user_bubbles.md
rename to .agents/phases/complete/159_edit_and_resend_message/01_edit_affordance_on_user_bubbles.md
diff --git a/.agents/phases/todo/159_edit_and_resend_message/02_resend_in_place.md b/.agents/phases/complete/159_edit_and_resend_message/02_resend_in_place.md
similarity index 100%
rename from .agents/phases/todo/159_edit_and_resend_message/02_resend_in_place.md
rename to .agents/phases/complete/159_edit_and_resend_message/02_resend_in_place.md
diff --git a/.agents/phases/todo/159_edit_and_resend_message/03_editable_error_turn.md b/.agents/phases/complete/159_edit_and_resend_message/03_editable_error_turn.md
similarity index 100%
rename from .agents/phases/todo/159_edit_and_resend_message/03_editable_error_turn.md
rename to .agents/phases/complete/159_edit_and_resend_message/03_editable_error_turn.md
diff --git a/.agents/phases/todo/159_edit_and_resend_message/04_edit_resend_tests.md b/.agents/phases/complete/159_edit_and_resend_message/04_edit_resend_tests.md
similarity index 100%
rename from .agents/phases/todo/159_edit_and_resend_message/04_edit_resend_tests.md
rename to .agents/phases/complete/159_edit_and_resend_message/04_edit_resend_tests.md
diff --git a/.agents/reports/159_edit_and_resend_message/159_edit_and_resend_message__00_phase.a1.err b/.agents/reports/159_edit_and_resend_message/159_edit_and_resend_message__00_phase.a1.err
new file mode 100644
index 0000000..e69de29
diff --git a/.agents/reports/159_edit_and_resend_message/159_edit_and_resend_message__00_phase.a1.md b/.agents/reports/159_edit_and_resend_message/159_edit_and_resend_message__00_phase.a1.md
new file mode 100644
index 0000000..c683b73
--- /dev/null
+++ b/.agents/reports/159_edit_and_resend_message/159_edit_and_resend_message__00_phase.a1.md
@@ -0,0 +1,22 @@
+All completion criteria verified. Final report:
+
+**Phase 159 — Edit the last question and re-ask it: VERIFIED COMPLETE** (all 4 tasks already in `complete/`; this pass verified end-to-end)
+
+**Verified (implementation landed + tests green):**
+- `app.js`: `EDIT_ICON`, `lastUserWrap`, `appendEditButton`/`markLastEditable` (single-target discipline, in-flight guard), `openEditor` (labelled textarea, `maxlength=4000`, Escape/Ctrl+⌘+Enter, empty guard), save path: replace → splice tail → DOM removal → `lastBrainWrap=null` → `saveConversation`+`persistConversation` → `runTurn(text,{reask:true})` — matches README exactly
+- `styles.css`: `.edit-btn`/`.edit-form`/`.edit-error`/`.is-editing` + mobile 44px; unit pins 40, E2E 7, integration `test_chats_api.py` extended
+
+**Test/lint results (all green):**
+- `uv run pytest` — 3,661 tests, exit 0
+- `uv run pytest --cov=app --cov-report=term-missing` — TOTAL **99%** (>90%)
+- `uv run ruff check . && uv run pyright` — all checks passed; 0 errors
+- `uv run pytest tests/e2e/test_edit_and_resend.py -v --no-cov` (DB up) — **7/7 passed**
+- Regressions in isolation: `test_retry_answer.py` 4/4, `test_failed_turn_retry.py` 4/4, `test_chat_persistence.py` 4/4
+
+**Completion criteria:** all 7 ✓ — Edit on last bubble + prefill + Escape/Cancel restore (E2E #3); replace+truncate+re-ask with no duplicated question (E2E #1); refresh survival (E2E #4); failed/“question too long” turn editable + trim re-asks (E2E #5); earlier bubbles un-editable + byte-identical Retry/Stop/persistence (E2E #2 + regressions + unit pins); suite/coverage/lint ✓; E2E + regressions isolated ✓. Commit + phase-dir move: harness's job (no git ops by me, per protocol).
+
+**Documentation:** README.md — full review; phase 159 section cross-checked against `app.js` source (cap, keys, truncate, image survival) — consistent, no changes needed; all 30 `.env.example` vars documented. AGENTS.md — full review; all rules/quick-ref commands valid — verified consistent, no changes needed.
+
+**Notable:** none — no defects found in prior work; no live-infrastructure changes required.
+
+**Next pending phase:** `160_tool_budget_telemetry`
diff --git a/.agents/reports/159_edit_and_resend_message/159_edit_and_resend_message__00_phase.a1.validate b/.agents/reports/159_edit_and_resend_message/159_edit_and_resend_message__00_phase.a1.validate
new file mode 100644
index 0000000..e6825da
--- /dev/null
+++ b/.agents/reports/159_edit_and_resend_message/159_edit_and_resend_message__00_phase.a1.validate
@@ -0,0 +1,122 @@
+........................................................................ [ 1%]
+........................................................................ [ 3%]
+........................................................................ [ 5%]
+........................................................................ [ 7%]
+........................................................................ [ 9%]
+........................................................................ [ 11%]
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+........................................................................ [ 90%]
+........................................................................ [ 92%]
+........................................................................ [ 94%]
+........................................................................ [ 96%]
+........................................................................ [ 98%]
+............................................................. [100%]
+=============================== warnings summary ===============================
+.venv/lib/python3.13/site-packages/fastapi/testclient.py:1
+ /var/home/ducoterra/Projects/Personal/brain_of_reese/.venv/lib/python3.13/site-packages/fastapi/testclient.py:1: StarletteDeprecationWarning: Using `httpx` with `starlette.testclient` is deprecated; install `httpx2` instead.
+ from starlette.testclient import TestClient as TestClient # noqa
+
+-- Docs: https://docs.pytest.org/en/stable/how-to/capture-warnings.html
+================================ tests coverage ================================
+_______________ coverage: platform linux, python 3.13.13-final-0 _______________
+
+Name Stmts Miss Cover
+--------------------------------------------------
+app/__init__.py 1 0 100%
+app/api/__init__.py 0 0 100%
+app/api/auth.py 52 0 100%
+app/api/chat.py 270 1 99%
+app/api/chat_images.py 50 0 100%
+app/api/chats.py 110 0 100%
+app/api/config.py 13 0 100%
+app/api/doc_drafts.py 99 0 100%
+app/api/docs.py 196 1 99%
+app/api/git_sources.py 259 0 100%
+app/api/health.py 10 0 100%
+app/api/steering.py 42 0 100%
+app/api/suggestions.py 33 0 100%
+app/api/sync.py 204 0 100%
+app/api/tokens.py 40 0 100%
+app/api/ui_settings.py 55 0 100%
+app/config.py 266 0 100%
+app/core/__init__.py 0 0 100%
+app/core/auth.py 45 0 100%
+app/core/caching.py 124 0 100%
+app/core/debugging.py 29 2 93%
+app/core/docs_push.py 39 0 100%
+app/core/errors.py 5 0 100%
+app/core/logging.py 13 0 100%
+app/core/rate_limit.py 44 0 100%
+app/core/security_headers.py 20 0 100%
+app/core/theming.py 38 0 100%
+app/core/tokens.py 44 0 100%
+app/db.py 22 0 100%
+app/main.py 68 0 100%
+app/models.py 135 0 100%
+app/rag/__init__.py 0 0 100%
+app/rag/agent.py 431 1 99%
+app/rag/archive_upload.py 134 0 100%
+app/rag/chunker.py 220 4 98%
+app/rag/doc_dates.py 18 0 100%
+app/rag/folder_summaries.py 134 0 100%
+app/rag/git_sources.py 77 0 100%
+app/rag/importer.py 764 4 99%
+app/rag/llm.py 246 1 99%
+app/rag/md_images.py 63 0 100%
+app/rag/overview.py 71 0 100%
+app/rag/pdf.py 192 0 100%
+app/rag/prompts.py 155 0 100%
+app/rag/retriever.py 248 3 99%
+app/rag/scaffolding.py 55 0 100%
+app/rag/source_removal.py 41 0 100%
+app/rag/sources_meta.py 16 0 100%
+app/rag/suggestions.py 27 0 100%
+app/rag/summarizer.py 58 0 100%
+app/schemas.py 466 0 100%
+--------------------------------------------------
+TOTAL 5742 17 99%
+coverage gate: app/ 99% (>90%) OK
+All checks passed!
+0 errors, 0 warnings, 0 informations
+WARNING: there is a new pyright version available (v1.1.411 -> v1.1.414).
+Please install the new version or set PYRIGHT_PYTHON_FORCE_VERSION to `latest`
+
+validation OK
diff --git a/.agents/reports/159_edit_and_resend_message/159_edit_and_resend_message__01_edit_affordance_on_user_bubbles.a1.err b/.agents/reports/159_edit_and_resend_message/159_edit_and_resend_message__01_edit_affordance_on_user_bubbles.a1.err
new file mode 100644
index 0000000..e69de29
diff --git a/.agents/reports/159_edit_and_resend_message/159_edit_and_resend_message__01_edit_affordance_on_user_bubbles.a1.md b/.agents/reports/159_edit_and_resend_message/159_edit_and_resend_message__01_edit_affordance_on_user_bubbles.a1.md
new file mode 100644
index 0000000..42461fd
--- /dev/null
+++ b/.agents/reports/159_edit_and_resend_message/159_edit_and_resend_message__01_edit_affordance_on_user_bubbles.a1.md
@@ -0,0 +1,22 @@
+**Task 159.01 complete — report**
+
+**Implemented**
+- `EDIT_ICON` (aria-hidden pencil, RETRY_ICON stroke family) + `appendEditButton` (joins `.msg-actions` via `getActionsRow`, listitem, "Edit" label, not admin-gated)
+- `lastUserWrap` (mirror of `lastBrainWrap`: runTurn fresh-send, restore user branch, cleared by `startNewChat`) + `lastUserRecordIndex()` newest-first scan + `markLastEditable()` (remove-then-append single target, in-flight guard, record/wrap bails) — paired at all six `markLastRetryable()` sites
+- `openEditor` (openTuneForm family): labelled `textarea[maxlength=MAX_QUESTION_CHARS]` rows=3 prefilled via `.value`, composer placeholder, Save/Cancel, `role=alert` `.edit-error`; `.is-editing` hides the bubble; Escape/Cancel restore + refocus; Ctrl/Cmd+Enter submits; in-flight save no-op; empty-trim rejected in-form; save = replace-in-place + `saveConversation()` + `renderMarkdown` re-render (attachment survives); task-02 seam marked at the close
+- CSS: `.edit-btn` pill family (+ hover + mobile 44px), `.edit-form` card family, `.edit-save/.edit-cancel`, `.edit-error` (–err-* tokens), `.msg.user .bubble.is-editing`; global `:focus-visible` verified unscoped
+- Verified E2E-style (scratch Playwright, since deleted): Edit at rest, Cancel/Escape byte-identical, empty guard, Ctrl+Enter save, localStorage update, reload restore, button moves on new send
+
+**Gates**
+- `uv run pytest --cov=app --cov-report=term-missing` → **3641 passed, 0 failed, TOTAL 99%** (>90%)
+- `uv run ruff check . && uv run pyright` → clean (0 errors)
+- `uv run pytest tests/e2e/test_scratch_edit_manual_check.py --no-cov` (scratch, deleted) → green
+
+**Docs** — README: new "Edit the newest question" paragraph in the Chat section. AGENTS.md: no impact (no new conventions).
+
+**Notable decisions**
+- `markLastEditable()`'s in-flight guard no-ops at the four mid-turn paired sites (uiState still streaming/thinking there) — added the one sanctioned 7th call in `runTurn`'s `finally` after the idle settle, so the button lands at rest (documented in-code; task 03 verifies the error-path pairs end-to-end)
+- Stale-click guard `wrap !== lastUserWrap` in `openEditor` (phase-49 discipline) — a superseded button is inert
+- Updated two stale prior-phase tail-pins (phase 120/130 `finalizeFailedTurn` now ends `markLastRetryable()` + `markLastEditable()`); scoped two over-broad assertions (`bubble.innerHTML` count → typing-clock functions; 900-char finally window → brace-matched); renamed local `saveBtn`→`editSaveBtn` (house `tuneSaveBtn` precedent); per-file E501 ignore for the 32KB `runTurn` byte-pin file (pyproject, commented)
+
+**Next pending task:** `02_resend_in_place.md` (phase 159)
diff --git a/.agents/reports/159_edit_and_resend_message/159_edit_and_resend_message__01_edit_affordance_on_user_bubbles.a1.validate b/.agents/reports/159_edit_and_resend_message/159_edit_and_resend_message__01_edit_affordance_on_user_bubbles.a1.validate
new file mode 100644
index 0000000..f763d9c
--- /dev/null
+++ b/.agents/reports/159_edit_and_resend_message/159_edit_and_resend_message__01_edit_affordance_on_user_bubbles.a1.validate
@@ -0,0 +1,122 @@
+........................................................................ [ 1%]
+........................................................................ [ 3%]
+........................................................................ [ 5%]
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+........................................................................ [ 29%]
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+........................................................................ [ 37%]
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+........................................................................ [ 83%]
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+........................................................................ [ 87%]
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+........................................................................ [ 90%]
+........................................................................ [ 92%]
+........................................................................ [ 94%]
+........................................................................ [ 96%]
+........................................................................ [ 98%]
+......................................... [100%]
+=============================== warnings summary ===============================
+.venv/lib/python3.13/site-packages/fastapi/testclient.py:1
+ /var/home/ducoterra/Projects/Personal/brain_of_reese/.venv/lib/python3.13/site-packages/fastapi/testclient.py:1: StarletteDeprecationWarning: Using `httpx` with `starlette.testclient` is deprecated; install `httpx2` instead.
+ from starlette.testclient import TestClient as TestClient # noqa
+
+-- Docs: https://docs.pytest.org/en/stable/how-to/capture-warnings.html
+================================ tests coverage ================================
+_______________ coverage: platform linux, python 3.13.13-final-0 _______________
+
+Name Stmts Miss Cover
+--------------------------------------------------
+app/__init__.py 1 0 100%
+app/api/__init__.py 0 0 100%
+app/api/auth.py 52 0 100%
+app/api/chat.py 270 1 99%
+app/api/chat_images.py 50 0 100%
+app/api/chats.py 110 0 100%
+app/api/config.py 13 0 100%
+app/api/doc_drafts.py 99 0 100%
+app/api/docs.py 196 1 99%
+app/api/git_sources.py 259 0 100%
+app/api/health.py 10 0 100%
+app/api/steering.py 42 0 100%
+app/api/suggestions.py 33 0 100%
+app/api/sync.py 204 0 100%
+app/api/tokens.py 40 0 100%
+app/api/ui_settings.py 55 0 100%
+app/config.py 266 0 100%
+app/core/__init__.py 0 0 100%
+app/core/auth.py 45 0 100%
+app/core/caching.py 124 0 100%
+app/core/debugging.py 29 2 93%
+app/core/docs_push.py 39 0 100%
+app/core/errors.py 5 0 100%
+app/core/logging.py 13 0 100%
+app/core/rate_limit.py 44 0 100%
+app/core/security_headers.py 20 0 100%
+app/core/theming.py 38 0 100%
+app/core/tokens.py 44 0 100%
+app/db.py 22 0 100%
+app/main.py 68 0 100%
+app/models.py 135 0 100%
+app/rag/__init__.py 0 0 100%
+app/rag/agent.py 431 1 99%
+app/rag/archive_upload.py 134 0 100%
+app/rag/chunker.py 220 4 98%
+app/rag/doc_dates.py 18 0 100%
+app/rag/folder_summaries.py 134 0 100%
+app/rag/git_sources.py 77 0 100%
+app/rag/importer.py 764 4 99%
+app/rag/llm.py 246 1 99%
+app/rag/md_images.py 63 0 100%
+app/rag/overview.py 71 0 100%
+app/rag/pdf.py 192 0 100%
+app/rag/prompts.py 155 0 100%
+app/rag/retriever.py 248 3 99%
+app/rag/scaffolding.py 55 0 100%
+app/rag/source_removal.py 41 0 100%
+app/rag/sources_meta.py 16 0 100%
+app/rag/suggestions.py 27 0 100%
+app/rag/summarizer.py 58 0 100%
+app/schemas.py 466 0 100%
+--------------------------------------------------
+TOTAL 5742 17 99%
+coverage gate: app/ 99% (>90%) OK
+All checks passed!
+0 errors, 0 warnings, 0 informations
+WARNING: there is a new pyright version available (v1.1.411 -> v1.1.414).
+Please install the new version or set PYRIGHT_PYTHON_FORCE_VERSION to `latest`
+
+validation OK
diff --git a/.agents/reports/159_edit_and_resend_message/159_edit_and_resend_message__01_edit_affordance_on_user_bubbles.a2.err b/.agents/reports/159_edit_and_resend_message/159_edit_and_resend_message__01_edit_affordance_on_user_bubbles.a2.err
new file mode 100644
index 0000000..e69de29
diff --git a/.agents/reports/159_edit_and_resend_message/159_edit_and_resend_message__02_resend_in_place.a1.err b/.agents/reports/159_edit_and_resend_message/159_edit_and_resend_message__02_resend_in_place.a1.err
new file mode 100644
index 0000000..e69de29
diff --git a/.agents/reports/159_edit_and_resend_message/159_edit_and_resend_message__02_resend_in_place.a1.md b/.agents/reports/159_edit_and_resend_message/159_edit_and_resend_message__02_resend_in_place.a1.md
new file mode 100644
index 0000000..a5f886a
--- /dev/null
+++ b/.agents/reports/159_edit_and_resend_message/159_edit_and_resend_message__02_resend_in_place.a1.md
@@ -0,0 +1,8 @@
+**Task 02 complete — report**
+
+- **Implemented (frontend-only, no `app/` change):** `openEditor`'s submit handler now does Save = replace + truncate + re-ask: `conversation.splice(editIdx + 1)` drops the whole tail after the in-place record replace; DOM removal walks `lastUserWrap.nextSibling` onward; `lastBrainWrap = null` + `leavePartialIndex` reset to -1 (gated on `> editIdx`); `saveConversation()` + fire-and-forget `persistConversation()` persist the truncated shape; `markLastRetryable()` re-targets (clears); then `closeEditor()`, the double in-flight check on one synchronous stretch (no `await`), and `return runTurn(text, { reask: true })` — no image (A7 text-only; the record/bubble keep the attachment). Guards in order: in-flight no-op, empty trim. Composer untouched.
+- **Tests:** `tests/unit/test_frontend_edit_message.py` — replaced the task-01 seam pin with a full-flow-order pin + 7 new pins (splice, DOM walk, bookkeeping resets, save+persist-before-reask, retry re-target, exact `runTurn(text, { reask: true })` no-image, synchronous-stretch double-check, composer untouched); `test_frontend_hidden_tab.py` — the phase-73 `leavePartialIndex` pin updated for the sanctioned third gated -1 write; `tests/integration/test_chats_api.py` — 2 new pins (edited + truncated tail PUT round-trips byte-identically through body/raw JSONB/GET; the `image` key survives the in-place edit).
+- **Results:** `uv run pytest --cov=app` → **3651 passed, TOTAL 99%**; `uv run ruff check .` → all checks passed; `uv run pyright` → 0 errors; `node --check app.js` → OK; regression E2E in isolation: `test_retry_answer.py` 4 passed, `test_failed_turn_retry.py` 4 passed, `test_chat_persistence.py` 4 passed. `retryLastTurn` / `runTurn` byte-pins unchanged (task 02 touches neither).
+- **Docs:** README's phase-159 paragraph updated (save now drops the tail and re-asks — a fresh answer streams in the old answer's place, no duplication, attachment survives); no AGENTS.md impact.
+- **Decisions:** the pre-re-ask in-flight re-check is explicit (the stretch is synchronous, so it's defensive documentation of the invariant, per the task's double-check wording); `editIdx` reuses task 01's `lastUserRecordIndex()` scan in the closure (identical value).
+- **Next pending task:** `03_editable_error_turn.md`.
diff --git a/.agents/reports/159_edit_and_resend_message/159_edit_and_resend_message__02_resend_in_place.a1.validate b/.agents/reports/159_edit_and_resend_message/159_edit_and_resend_message__02_resend_in_place.a1.validate
new file mode 100644
index 0000000..a3e4ebc
--- /dev/null
+++ b/.agents/reports/159_edit_and_resend_message/159_edit_and_resend_message__02_resend_in_place.a1.validate
@@ -0,0 +1,122 @@
+........................................................................ [ 1%]
+........................................................................ [ 3%]
+........................................................................ [ 5%]
+........................................................................ [ 7%]
+........................................................................ [ 9%]
+........................................................................ [ 11%]
+........................................................................ [ 13%]
+........................................................................ [ 15%]
+........................................................................ [ 17%]
+........................................................................ [ 19%]
+........................................................................ [ 21%]
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+........................................................................ [ 25%]
+........................................................................ [ 27%]
+........................................................................ [ 29%]
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+........................................................................ [ 33%]
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+........................................................................ [ 37%]
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+........................................................................ [ 41%]
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+........................................................................ [ 49%]
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+........................................................................ [ 90%]
+........................................................................ [ 92%]
+........................................................................ [ 94%]
+........................................................................ [ 96%]
+........................................................................ [ 98%]
+................................................... [100%]
+=============================== warnings summary ===============================
+.venv/lib/python3.13/site-packages/fastapi/testclient.py:1
+ /var/home/ducoterra/Projects/Personal/brain_of_reese/.venv/lib/python3.13/site-packages/fastapi/testclient.py:1: StarletteDeprecationWarning: Using `httpx` with `starlette.testclient` is deprecated; install `httpx2` instead.
+ from starlette.testclient import TestClient as TestClient # noqa
+
+-- Docs: https://docs.pytest.org/en/stable/how-to/capture-warnings.html
+================================ tests coverage ================================
+_______________ coverage: platform linux, python 3.13.13-final-0 _______________
+
+Name Stmts Miss Cover
+--------------------------------------------------
+app/__init__.py 1 0 100%
+app/api/__init__.py 0 0 100%
+app/api/auth.py 52 0 100%
+app/api/chat.py 270 1 99%
+app/api/chat_images.py 50 0 100%
+app/api/chats.py 110 0 100%
+app/api/config.py 13 0 100%
+app/api/doc_drafts.py 99 0 100%
+app/api/docs.py 196 1 99%
+app/api/git_sources.py 259 0 100%
+app/api/health.py 10 0 100%
+app/api/steering.py 42 0 100%
+app/api/suggestions.py 33 0 100%
+app/api/sync.py 204 0 100%
+app/api/tokens.py 40 0 100%
+app/api/ui_settings.py 55 0 100%
+app/config.py 266 0 100%
+app/core/__init__.py 0 0 100%
+app/core/auth.py 45 0 100%
+app/core/caching.py 124 0 100%
+app/core/debugging.py 29 2 93%
+app/core/docs_push.py 39 0 100%
+app/core/errors.py 5 0 100%
+app/core/logging.py 13 0 100%
+app/core/rate_limit.py 44 0 100%
+app/core/security_headers.py 20 0 100%
+app/core/theming.py 38 0 100%
+app/core/tokens.py 44 0 100%
+app/db.py 22 0 100%
+app/main.py 68 0 100%
+app/models.py 135 0 100%
+app/rag/__init__.py 0 0 100%
+app/rag/agent.py 431 1 99%
+app/rag/archive_upload.py 134 0 100%
+app/rag/chunker.py 220 4 98%
+app/rag/doc_dates.py 18 0 100%
+app/rag/folder_summaries.py 134 0 100%
+app/rag/git_sources.py 77 0 100%
+app/rag/importer.py 764 4 99%
+app/rag/llm.py 246 1 99%
+app/rag/md_images.py 63 0 100%
+app/rag/overview.py 71 0 100%
+app/rag/pdf.py 192 0 100%
+app/rag/prompts.py 155 0 100%
+app/rag/retriever.py 248 3 99%
+app/rag/scaffolding.py 55 0 100%
+app/rag/source_removal.py 41 0 100%
+app/rag/sources_meta.py 16 0 100%
+app/rag/suggestions.py 27 0 100%
+app/rag/summarizer.py 58 0 100%
+app/schemas.py 466 0 100%
+--------------------------------------------------
+TOTAL 5742 17 99%
+coverage gate: app/ 99% (>90%) OK
+All checks passed!
+0 errors, 0 warnings, 0 informations
+WARNING: there is a new pyright version available (v1.1.411 -> v1.1.414).
+Please install the new version or set PYRIGHT_PYTHON_FORCE_VERSION to `latest`
+
+validation OK
diff --git a/.agents/reports/159_edit_and_resend_message/159_edit_and_resend_message__03_editable_error_turn.a1.err b/.agents/reports/159_edit_and_resend_message/159_edit_and_resend_message__03_editable_error_turn.a1.err
new file mode 100644
index 0000000..e69de29
diff --git a/.agents/reports/159_edit_and_resend_message/159_edit_and_resend_message__03_editable_error_turn.a1.md b/.agents/reports/159_edit_and_resend_message/159_edit_and_resend_message__03_editable_error_turn.a1.md
new file mode 100644
index 0000000..4669a0b
--- /dev/null
+++ b/.agents/reports/159_edit_and_resend_message/159_edit_and_resend_message__03_editable_error_turn.a1.md
@@ -0,0 +1,18 @@
+All gates verified. Final report:
+
+**Task 03 complete — the driver case: a failed or rejected question stays editable**
+
+**Implemented:**
+- Verified all 5 pre-existing `markLastEditable()` pairings (finalizeFailedTurn funnel — the 422 + SSE error-frame path, zero-frame fallback, stop finalize, done settle) + both restore pairs; the 300s-guard `aborted` catch branch settled with **no** mark pair → added `markLastRetryable(); markLastEditable();` there (timed-out turn no longer strands the question; finally idle-settle re-run stays harmless via remove-then-append)
+- Verified the guard pins: `markLastEditable` bails only on `thinking`/`streaming` (never `error`/`idle`); the save handler's double guard is byte-identical
+- Confirmed the failed `{failed: true}` record is dropped (single-arg splice + DOM walk + `lastBrainWrap = null` before re-ask) and added the one-line truncation-ordering comment (new turn's `rememberBrainTurn` sees the post-splice array)
+- Confirmed `?chat=` admin restore is an editable working copy (mirrors localStorage, links `currentChatId`) — **no read-only render path exists; the assumption holds, no gate added** (finding recorded)
+- `showErrorBanner` untouched — its `opts.retryable && lastBrainWrap` condition is byte-pinned via the shared phase-120 pin
+
+**Tests:** extended `tests/unit/test_frontend_edit_message.py` — 7 new task-03 tests (guard states, save-guard mirror, banner byte-pin, failed-record-dropped, ordering-note pin, aborted-settle pair, restore paths) + updated the 8-call/7-paired counts and `PINNED_RUN_TURN`
+
+**Results:** `uv run pytest` → exit 0, 100% dots, zero failures · `--cov=app` → TOTAL 99% (>90% gate) · `uv run ruff check .` → All checks passed · `uv run pyright` → 0/0/0 · manual driver check (mock LLM + Playwright): error-frame turn → Edit+Retry, trim+Save streams a **grounded** answer; 422 >4000-char turn → same; refresh restores with working Edit — all PASS
+
+**Docs:** no doc impact (README's phase-159 paragraph already covers the "failed turn fixed by trimming in the editor" behavior)
+
+**Next pending task:** `.agents/phases/todo/159_edit_and_resend_message/04_edit_resend_tests.md`
diff --git a/.agents/reports/159_edit_and_resend_message/159_edit_and_resend_message__03_editable_error_turn.a1.validate b/.agents/reports/159_edit_and_resend_message/159_edit_and_resend_message__03_editable_error_turn.a1.validate
new file mode 100644
index 0000000..b390d57
--- /dev/null
+++ b/.agents/reports/159_edit_and_resend_message/159_edit_and_resend_message__03_editable_error_turn.a1.validate
@@ -0,0 +1,122 @@
+........................................................................ [ 1%]
+........................................................................ [ 3%]
+........................................................................ [ 5%]
+........................................................................ [ 7%]
+........................................................................ [ 9%]
+........................................................................ [ 11%]
+........................................................................ [ 13%]
+........................................................................ [ 15%]
+........................................................................ [ 17%]
+........................................................................ [ 19%]
+........................................................................ [ 21%]
+........................................................................ [ 23%]
+........................................................................ [ 25%]
+........................................................................ [ 27%]
+........................................................................ [ 29%]
+........................................................................ [ 31%]
+........................................................................ [ 33%]
+........................................................................ [ 35%]
+........................................................................ [ 37%]
+........................................................................ [ 39%]
+........................................................................ [ 41%]
+........................................................................ [ 43%]
+........................................................................ [ 45%]
+........................................................................ [ 47%]
+........................................................................ [ 49%]
+........................................................................ [ 51%]
+........................................................................ [ 53%]
+........................................................................ [ 55%]
+........................................................................ [ 57%]
+........................................................................ [ 59%]
+........................................................................ [ 61%]
+........................................................................ [ 62%]
+........................................................................ [ 64%]
+........................................................................ [ 66%]
+........................................................................ [ 68%]
+........................................................................ [ 70%]
+........................................................................ [ 72%]
+........................................................................ [ 74%]
+........................................................................ [ 76%]
+........................................................................ [ 78%]
+........................................................................ [ 80%]
+........................................................................ [ 82%]
+........................................................................ [ 84%]
+........................................................................ [ 86%]
+........................................................................ [ 88%]
+........................................................................ [ 90%]
+........................................................................ [ 92%]
+........................................................................ [ 94%]
+........................................................................ [ 96%]
+........................................................................ [ 98%]
+.......................................................... [100%]
+=============================== warnings summary ===============================
+.venv/lib/python3.13/site-packages/fastapi/testclient.py:1
+ /var/home/ducoterra/Projects/Personal/brain_of_reese/.venv/lib/python3.13/site-packages/fastapi/testclient.py:1: StarletteDeprecationWarning: Using `httpx` with `starlette.testclient` is deprecated; install `httpx2` instead.
+ from starlette.testclient import TestClient as TestClient # noqa
+
+-- Docs: https://docs.pytest.org/en/stable/how-to/capture-warnings.html
+================================ tests coverage ================================
+_______________ coverage: platform linux, python 3.13.13-final-0 _______________
+
+Name Stmts Miss Cover
+--------------------------------------------------
+app/__init__.py 1 0 100%
+app/api/__init__.py 0 0 100%
+app/api/auth.py 52 0 100%
+app/api/chat.py 270 1 99%
+app/api/chat_images.py 50 0 100%
+app/api/chats.py 110 0 100%
+app/api/config.py 13 0 100%
+app/api/doc_drafts.py 99 0 100%
+app/api/docs.py 196 1 99%
+app/api/git_sources.py 259 0 100%
+app/api/health.py 10 0 100%
+app/api/steering.py 42 0 100%
+app/api/suggestions.py 33 0 100%
+app/api/sync.py 204 0 100%
+app/api/tokens.py 40 0 100%
+app/api/ui_settings.py 55 0 100%
+app/config.py 266 0 100%
+app/core/__init__.py 0 0 100%
+app/core/auth.py 45 0 100%
+app/core/caching.py 124 0 100%
+app/core/debugging.py 29 2 93%
+app/core/docs_push.py 39 0 100%
+app/core/errors.py 5 0 100%
+app/core/logging.py 13 0 100%
+app/core/rate_limit.py 44 0 100%
+app/core/security_headers.py 20 0 100%
+app/core/theming.py 38 0 100%
+app/core/tokens.py 44 0 100%
+app/db.py 22 0 100%
+app/main.py 68 0 100%
+app/models.py 135 0 100%
+app/rag/__init__.py 0 0 100%
+app/rag/agent.py 431 1 99%
+app/rag/archive_upload.py 134 0 100%
+app/rag/chunker.py 220 4 98%
+app/rag/doc_dates.py 18 0 100%
+app/rag/folder_summaries.py 134 0 100%
+app/rag/git_sources.py 77 0 100%
+app/rag/importer.py 764 4 99%
+app/rag/llm.py 246 1 99%
+app/rag/md_images.py 63 0 100%
+app/rag/overview.py 71 0 100%
+app/rag/pdf.py 192 0 100%
+app/rag/prompts.py 155 0 100%
+app/rag/retriever.py 248 3 99%
+app/rag/scaffolding.py 55 0 100%
+app/rag/source_removal.py 41 0 100%
+app/rag/sources_meta.py 16 0 100%
+app/rag/suggestions.py 27 0 100%
+app/rag/summarizer.py 58 0 100%
+app/schemas.py 466 0 100%
+--------------------------------------------------
+TOTAL 5742 17 99%
+coverage gate: app/ 99% (>90%) OK
+All checks passed!
+0 errors, 0 warnings, 0 informations
+WARNING: there is a new pyright version available (v1.1.411 -> v1.1.414).
+Please install the new version or set PYRIGHT_PYTHON_FORCE_VERSION to `latest`
+
+validation OK
diff --git a/.agents/reports/159_edit_and_resend_message/159_edit_and_resend_message__03_editable_error_turn.a2.err b/.agents/reports/159_edit_and_resend_message/159_edit_and_resend_message__03_editable_error_turn.a2.err
new file mode 100644
index 0000000..e69de29
diff --git a/.agents/reports/159_edit_and_resend_message/159_edit_and_resend_message__03_editable_error_turn.a2.md b/.agents/reports/159_edit_and_resend_message/159_edit_and_resend_message__03_editable_error_turn.a2.md
new file mode 100644
index 0000000..d8a52f2
--- /dev/null
+++ b/.agents/reports/159_edit_and_resend_message/159_edit_and_resend_message__03_editable_error_turn.a2.md
@@ -0,0 +1,17 @@
+Docs are consistent — the README's phase-159 paragraph (L103–114) already covers the task-03 driver-case behavior, and AGENTS.md needs no phase-159 changes (the Edit button joins the existing `.msg-actions` row; no new conventions). Final report:
+
+**Task 03 complete — the driver case: a failed or rejected question stays editable**
+
+**Verified/implemented (this pass re-runs all gates after the process-rejection):**
+- All 5 non-`done` settle pairings + both restore pairs verified (422 non-OK-HTTP + SSE `error`-frame path → `finalizeFailedTurn` funnel with `markLastEditable()` as the very next statement; zero-frame fallback; stop finalize; done settle)
+- The 300s-guard `aborted` catch branch settled with no mark pair → added `markLastRetryable(); markLastEditable();` there (a timed-out turn no longer strands the question)
+- Guard pins verified: `markLastEditable` bails only on `thinking`/`streaming` (never `error`/`idle`); the save handler's double guard is byte-identical
+- Failed `{failed: true}` record is dropped by the single-arg splice + DOM walk; `lastBrainWrap = null` precedes the re-ask; added the one-line truncation-ordering comment (new turn's `rememberBrainTurn` sees the post-splice array)
+- `?chat=` admin restore confirmed an editable working copy — no read-only path exists, assumption holds, no gate added; `showErrorBanner` byte-unchanged (shared phase-120 pin)
+- Extended `tests/unit/test_frontend_edit_message.py` with 7 new task-03 tests; updated the 8-call/7-paired counts and `PINNED_RUN_TURN`
+
+**Results:** `uv run pytest` → exit 0, zero failures (all-dots progress) · `--cov=app` → TOTAL 99% (>90% gate) · `uv run ruff check .` → All checks passed · `uv run pyright` → 0 errors/0 warnings · manual driver check (mock LLM + Playwright): error-frame + 422 turns → Edit + trim + Save streams a grounded answer; refresh restores with a working Edit — all PASS
+
+**Docs:** README/AGENTS.md consistency check re-run — both accurate, no changes needed
+
+**Next pending task:** `.agents/phases/todo/159_edit_and_resend_message/04_edit_resend_tests.md`
diff --git a/.agents/reports/159_edit_and_resend_message/159_edit_and_resend_message__03_editable_error_turn.a2.validate b/.agents/reports/159_edit_and_resend_message/159_edit_and_resend_message__03_editable_error_turn.a2.validate
new file mode 100644
index 0000000..b390d57
--- /dev/null
+++ b/.agents/reports/159_edit_and_resend_message/159_edit_and_resend_message__03_editable_error_turn.a2.validate
@@ -0,0 +1,122 @@
+........................................................................ [ 1%]
+........................................................................ [ 3%]
+........................................................................ [ 5%]
+........................................................................ [ 7%]
+........................................................................ [ 9%]
+........................................................................ [ 11%]
+........................................................................ [ 13%]
+........................................................................ [ 15%]
+........................................................................ [ 17%]
+........................................................................ [ 19%]
+........................................................................ [ 21%]
+........................................................................ [ 23%]
+........................................................................ [ 25%]
+........................................................................ [ 27%]
+........................................................................ [ 29%]
+........................................................................ [ 31%]
+........................................................................ [ 33%]
+........................................................................ [ 35%]
+........................................................................ [ 37%]
+........................................................................ [ 39%]
+........................................................................ [ 41%]
+........................................................................ [ 43%]
+........................................................................ [ 45%]
+........................................................................ [ 47%]
+........................................................................ [ 49%]
+........................................................................ [ 51%]
+........................................................................ [ 53%]
+........................................................................ [ 55%]
+........................................................................ [ 57%]
+........................................................................ [ 59%]
+........................................................................ [ 61%]
+........................................................................ [ 62%]
+........................................................................ [ 64%]
+........................................................................ [ 66%]
+........................................................................ [ 68%]
+........................................................................ [ 70%]
+........................................................................ [ 72%]
+........................................................................ [ 74%]
+........................................................................ [ 76%]
+........................................................................ [ 78%]
+........................................................................ [ 80%]
+........................................................................ [ 82%]
+........................................................................ [ 84%]
+........................................................................ [ 86%]
+........................................................................ [ 88%]
+........................................................................ [ 90%]
+........................................................................ [ 92%]
+........................................................................ [ 94%]
+........................................................................ [ 96%]
+........................................................................ [ 98%]
+.......................................................... [100%]
+=============================== warnings summary ===============================
+.venv/lib/python3.13/site-packages/fastapi/testclient.py:1
+ /var/home/ducoterra/Projects/Personal/brain_of_reese/.venv/lib/python3.13/site-packages/fastapi/testclient.py:1: StarletteDeprecationWarning: Using `httpx` with `starlette.testclient` is deprecated; install `httpx2` instead.
+ from starlette.testclient import TestClient as TestClient # noqa
+
+-- Docs: https://docs.pytest.org/en/stable/how-to/capture-warnings.html
+================================ tests coverage ================================
+_______________ coverage: platform linux, python 3.13.13-final-0 _______________
+
+Name Stmts Miss Cover
+--------------------------------------------------
+app/__init__.py 1 0 100%
+app/api/__init__.py 0 0 100%
+app/api/auth.py 52 0 100%
+app/api/chat.py 270 1 99%
+app/api/chat_images.py 50 0 100%
+app/api/chats.py 110 0 100%
+app/api/config.py 13 0 100%
+app/api/doc_drafts.py 99 0 100%
+app/api/docs.py 196 1 99%
+app/api/git_sources.py 259 0 100%
+app/api/health.py 10 0 100%
+app/api/steering.py 42 0 100%
+app/api/suggestions.py 33 0 100%
+app/api/sync.py 204 0 100%
+app/api/tokens.py 40 0 100%
+app/api/ui_settings.py 55 0 100%
+app/config.py 266 0 100%
+app/core/__init__.py 0 0 100%
+app/core/auth.py 45 0 100%
+app/core/caching.py 124 0 100%
+app/core/debugging.py 29 2 93%
+app/core/docs_push.py 39 0 100%
+app/core/errors.py 5 0 100%
+app/core/logging.py 13 0 100%
+app/core/rate_limit.py 44 0 100%
+app/core/security_headers.py 20 0 100%
+app/core/theming.py 38 0 100%
+app/core/tokens.py 44 0 100%
+app/db.py 22 0 100%
+app/main.py 68 0 100%
+app/models.py 135 0 100%
+app/rag/__init__.py 0 0 100%
+app/rag/agent.py 431 1 99%
+app/rag/archive_upload.py 134 0 100%
+app/rag/chunker.py 220 4 98%
+app/rag/doc_dates.py 18 0 100%
+app/rag/folder_summaries.py 134 0 100%
+app/rag/git_sources.py 77 0 100%
+app/rag/importer.py 764 4 99%
+app/rag/llm.py 246 1 99%
+app/rag/md_images.py 63 0 100%
+app/rag/overview.py 71 0 100%
+app/rag/pdf.py 192 0 100%
+app/rag/prompts.py 155 0 100%
+app/rag/retriever.py 248 3 99%
+app/rag/scaffolding.py 55 0 100%
+app/rag/source_removal.py 41 0 100%
+app/rag/sources_meta.py 16 0 100%
+app/rag/suggestions.py 27 0 100%
+app/rag/summarizer.py 58 0 100%
+app/schemas.py 466 0 100%
+--------------------------------------------------
+TOTAL 5742 17 99%
+coverage gate: app/ 99% (>90%) OK
+All checks passed!
+0 errors, 0 warnings, 0 informations
+WARNING: there is a new pyright version available (v1.1.411 -> v1.1.414).
+Please install the new version or set PYRIGHT_PYTHON_FORCE_VERSION to `latest`
+
+validation OK
diff --git a/.agents/reports/159_edit_and_resend_message/159_edit_and_resend_message__04_edit_resend_tests.a1.err b/.agents/reports/159_edit_and_resend_message/159_edit_and_resend_message__04_edit_resend_tests.a1.err
new file mode 100644
index 0000000..e69de29
diff --git a/.agents/reports/159_edit_and_resend_message/159_edit_and_resend_message__04_edit_resend_tests.a1.md b/.agents/reports/159_edit_and_resend_message/159_edit_and_resend_message__04_edit_resend_tests.a1.md
new file mode 100644
index 0000000..62e5910
--- /dev/null
+++ b/.agents/reports/159_edit_and_resend_message/159_edit_and_resend_message__04_edit_resend_tests.a1.md
@@ -0,0 +1,19 @@
+**Report — phase 159, task 04 (edit-and-resend tests)**
+
+**Implemented**
+- Unit: `tests/unit/test_frontend_edit_message.py` — added the task-04 regression pins `PINNED_HANDLE_SEND` + `PINNED_REMEMBER_BRAIN_TURN` (byte-unchanged, "NOT touched" contract) with two tests; docstring extended to tasks 01–04 (file now 40 tests; tasks 01–03 had already pinned the icon/button/markLastEditable/openEditor/save-flow/CSS clusters and the runTurn@phase-159 state)
+- Integration: `tests/integration/test_chats_api.py` — added `test_shared_serve_carries_the_edited_truncated_shape` (case b: post-edit shape on a shared chat serves byte-identically through `SharedChatOut.messages`; case a already existed from task 02)
+- E2E: new `tests/e2e/test_edit_and_resend.py` — 7 mock-only tests (re-ask in place + row poll, single-target discipline, Escape no-op with focus return + byte-identical localStorage, refresh survival, the `always fail` driver case with the real-endpoint-only "Question too long" docstring note, in-flight inertness, composer draft survival) on the phase-120 template (TRUNCATE-then-seed, `auth_helpers.login`, `homelab/kubernetes.md` seed)
+
+**Results (all green)**
+- `uv run pytest` (unit + integration): 3661 passed
+- `uv run pytest --cov=app --cov-report=term-missing`: TOTAL 99% (>90%)
+- `uv run pytest tests/e2e/test_edit_and_resend.py -v --no-cov`: 7 passed in isolation
+- Regressions in isolation: `test_retry_answer` 4, `test_failed_turn_retry` 4, `test_chat_persistence` 4, `test_stop_generation` 3, `test_smoke` 3 — all passed
+- `uv run ruff check . && uv run pyright`: clean (0 errors, 0 warnings)
+
+**Docs** — no doc impact from this task: README's phase-159 Edit paragraph was already added by earlier tasks; AGENTS.md unchanged.
+
+**Decisions** — the saved-chat row is compared to localStorage key-for-key (`_shape_matches`), not raw-equal: the DB stores the schema-normalized shape (explicit `None` keys, the `_expect` convention) while localStorage keeps raw client records.
+
+**Next pending task** — none in phase 159 (04 was the last); phase final validation (regression gate + atomic commit + dir move) is the harness's.
diff --git a/.agents/reports/159_edit_and_resend_message/159_edit_and_resend_message__04_edit_resend_tests.a1.validate b/.agents/reports/159_edit_and_resend_message/159_edit_and_resend_message__04_edit_resend_tests.a1.validate
new file mode 100644
index 0000000..e6825da
--- /dev/null
+++ b/.agents/reports/159_edit_and_resend_message/159_edit_and_resend_message__04_edit_resend_tests.a1.validate
@@ -0,0 +1,122 @@
+........................................................................ [ 1%]
+........................................................................ [ 3%]
+........................................................................ [ 5%]
+........................................................................ [ 7%]
+........................................................................ [ 9%]
+........................................................................ [ 11%]
+........................................................................ [ 13%]
+........................................................................ [ 15%]
+........................................................................ [ 17%]
+........................................................................ [ 19%]
+........................................................................ [ 21%]
+........................................................................ [ 23%]
+........................................................................ [ 25%]
+........................................................................ [ 27%]
+........................................................................ [ 29%]
+........................................................................ [ 31%]
+........................................................................ [ 33%]
+........................................................................ [ 35%]
+........................................................................ [ 37%]
+........................................................................ [ 39%]
+........................................................................ [ 41%]
+........................................................................ [ 43%]
+........................................................................ [ 45%]
+........................................................................ [ 47%]
+........................................................................ [ 49%]
+........................................................................ [ 51%]
+........................................................................ [ 53%]
+........................................................................ [ 55%]
+........................................................................ [ 57%]
+........................................................................ [ 59%]
+........................................................................ [ 60%]
+........................................................................ [ 62%]
+........................................................................ [ 64%]
+........................................................................ [ 66%]
+........................................................................ [ 68%]
+........................................................................ [ 70%]
+........................................................................ [ 72%]
+........................................................................ [ 74%]
+........................................................................ [ 76%]
+........................................................................ [ 78%]
+........................................................................ [ 80%]
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+........................................................................ [ 88%]
+........................................................................ [ 90%]
+........................................................................ [ 92%]
+........................................................................ [ 94%]
+........................................................................ [ 96%]
+........................................................................ [ 98%]
+............................................................. [100%]
+=============================== warnings summary ===============================
+.venv/lib/python3.13/site-packages/fastapi/testclient.py:1
+ /var/home/ducoterra/Projects/Personal/brain_of_reese/.venv/lib/python3.13/site-packages/fastapi/testclient.py:1: StarletteDeprecationWarning: Using `httpx` with `starlette.testclient` is deprecated; install `httpx2` instead.
+ from starlette.testclient import TestClient as TestClient # noqa
+
+-- Docs: https://docs.pytest.org/en/stable/how-to/capture-warnings.html
+================================ tests coverage ================================
+_______________ coverage: platform linux, python 3.13.13-final-0 _______________
+
+Name Stmts Miss Cover
+--------------------------------------------------
+app/__init__.py 1 0 100%
+app/api/__init__.py 0 0 100%
+app/api/auth.py 52 0 100%
+app/api/chat.py 270 1 99%
+app/api/chat_images.py 50 0 100%
+app/api/chats.py 110 0 100%
+app/api/config.py 13 0 100%
+app/api/doc_drafts.py 99 0 100%
+app/api/docs.py 196 1 99%
+app/api/git_sources.py 259 0 100%
+app/api/health.py 10 0 100%
+app/api/steering.py 42 0 100%
+app/api/suggestions.py 33 0 100%
+app/api/sync.py 204 0 100%
+app/api/tokens.py 40 0 100%
+app/api/ui_settings.py 55 0 100%
+app/config.py 266 0 100%
+app/core/__init__.py 0 0 100%
+app/core/auth.py 45 0 100%
+app/core/caching.py 124 0 100%
+app/core/debugging.py 29 2 93%
+app/core/docs_push.py 39 0 100%
+app/core/errors.py 5 0 100%
+app/core/logging.py 13 0 100%
+app/core/rate_limit.py 44 0 100%
+app/core/security_headers.py 20 0 100%
+app/core/theming.py 38 0 100%
+app/core/tokens.py 44 0 100%
+app/db.py 22 0 100%
+app/main.py 68 0 100%
+app/models.py 135 0 100%
+app/rag/__init__.py 0 0 100%
+app/rag/agent.py 431 1 99%
+app/rag/archive_upload.py 134 0 100%
+app/rag/chunker.py 220 4 98%
+app/rag/doc_dates.py 18 0 100%
+app/rag/folder_summaries.py 134 0 100%
+app/rag/git_sources.py 77 0 100%
+app/rag/importer.py 764 4 99%
+app/rag/llm.py 246 1 99%
+app/rag/md_images.py 63 0 100%
+app/rag/overview.py 71 0 100%
+app/rag/pdf.py 192 0 100%
+app/rag/prompts.py 155 0 100%
+app/rag/retriever.py 248 3 99%
+app/rag/scaffolding.py 55 0 100%
+app/rag/source_removal.py 41 0 100%
+app/rag/sources_meta.py 16 0 100%
+app/rag/suggestions.py 27 0 100%
+app/rag/summarizer.py 58 0 100%
+app/schemas.py 466 0 100%
+--------------------------------------------------
+TOTAL 5742 17 99%
+coverage gate: app/ 99% (>90%) OK
+All checks passed!
+0 errors, 0 warnings, 0 informations
+WARNING: there is a new pyright version available (v1.1.411 -> v1.1.414).
+Please install the new version or set PYRIGHT_PYTHON_FORCE_VERSION to `latest`
+
+validation OK
diff --git a/README.md b/README.md
index a47dd1c..b09f01d 100644
--- a/README.md
+++ b/README.md
@@ -100,6 +100,20 @@ origin the browser rejects the clipboard, so the click instead offers the
full path in an inline fallback field that selects itself on focus —
click or Tab, then copy (phase 153).
+**Edit** the newest question (phase 159): the latest user bubble carries
+an **Edit** button that swaps the bubble for an inline textarea
+prefilled with the question (the 4,000-character cap is enforced with
+`maxlength`; **Ctrl/⌘+Enter** submits, **Esc** / **Cancel** restore the
+original byte-identical, and a whitespace-only save is rejected inline).
+Saving rewrites the question in the chat and the saved chat in place,
+drops every turn that followed it, and re-asks the trimmed question —
+a fresh answer streams in the old answer's place (the question is
+never duplicated; an attachment on the question survives the edit and
+the re-ask stays text-only). A turn that failed with "Question too
+long — trim it and re-ask" (or a mistyped question) is fixed by
+trimming it in the editor instead of retyping it. Earlier bubbles
+never carry the button (last-question-only scope, owner-locked).
+
### RAG / Knowledge base (`/sources.html`)
The indexed document list. The *Path* column opens each document in the same
diff --git a/frontend/assets/app.js b/frontend/assets/app.js
index 8b07a20..9480d0c 100644
--- a/frontend/assets/app.js
+++ b/frontend/assets/app.js
@@ -600,12 +600,33 @@ function appendFailedNote(wrap, detail) {
* key off it. */
let lastBrainWrap = null;
+/* Phase 159 (task 01, TODO.md L3): the rendered wrap of the CURRENT
+ * last USER record — the exact mirror of lastBrainWrap (one `who`
+ * over). Assigned exactly where a user bubble becomes the newest
+ * question (runTurn's fresh-send addMessage — the reask path keeps
+ * the existing bubble, so no assignment there — and the phase-14
+ * restore's user branch, where the LAST restored user bubble wins),
+ * and cleared by startNewChat. Both markLastEditable's targeting and
+ * openEditor's stale-click guard key off it (the phase-49
+ * single-target discipline). Task 02 reuses the variable for the tail
+ * truncation. */
+let lastUserWrap = null;
+
/* The Retry button's redo glyph (aria-hidden decoration — the "Retry"
* text carries the accessible name), currentColor so the CSS themes the
* stroke (ink-soft → ink on hover, the phase-08 palette). */
const RETRY_ICON =
'';
+/* Phase 159 (task 01, TODO.md L3): the Edit button's pencil glyph
+ * (aria-hidden decoration — the visible "Edit" label carries the
+ * accessible name). Same stroke family as RETRY_ICON: fill="none",
+ * currentColor stroke (the CSS themes it — ink-soft → ink on hover,
+ * the phase-08 palette), 24×24 viewBox, stroke-width 1.7. No icon
+ * font, no CDN (A11). */
+const EDIT_ICON =
+ '';
+
/* "Retry" button in the last brain bubble's actions row — the redo
* action of phase 49 (owner-locked 2026-08-29, TODO.md L4). The house
* pattern through getActionsRow (phase 130 task 02 — the role=list
@@ -627,6 +648,30 @@ function appendRetryButton(wrap) {
meta.appendChild(btn);
}
+/* "Edit" button in the last USER bubble's actions row (phase 159,
+ * task 01, TODO.md L3 — the trim-and-re-ask remedy: a "Question too
+ * long — trim it and re-ask" turn, or any mistyped / half-formed
+ * question, is fixed by editing, never by retyping). The house
+ * pattern through getActionsRow (phase 130 task 02 — the role=list
+ * row joins the button as a listitem so ARIA stays valid); one
+ * button per bubble. The visible "Edit" label carries the accessible
+ * name (no ellipsis clipping needed at this width). Click →
+ * openEditor(wrap, btn). NOT admin-gated, unlike appendTuneButton —
+ * chat is public, so every visitor who can chat can edit the last
+ * question (the phase-49 Retry precedent). */
+function appendEditButton(wrap) {
+ const meta = getActionsRow(wrap);
+ if (!meta) return;
+ if (meta.querySelector(".edit-btn")) return; // one per bubble
+ const btn = document.createElement("button");
+ btn.type = "button";
+ btn.className = "edit-btn";
+ if (meta.getAttribute("role") === "list") btn.setAttribute("role", "listitem");
+ btn.innerHTML = EDIT_ICON + "Edit";
+ btn.addEventListener("click", () => openEditor(wrap, btn));
+ meta.appendChild(btn);
+}
+
/* Last-bubble-only management (owner-locked 2026-08-29): the Retry
* button lives on exactly ONE bubble — the last brain answer. Remove
* every rendered .retry-btn FIRST (an earlier bubble's button is stale
@@ -662,6 +707,44 @@ function markLastRetryable() {
appendRetryButton(lastBrainWrap);
}
+/* Phase 159 (task 01, TODO.md L3): the Edit button's single-target
+ * management — the sibling of markLastRetryable (the phase-49
+ * discipline, one `who` over): exactly ONE editable bubble, the
+ * NEWEST question (owner-locked 2026-10-05; earlier bubbles are
+ * never editable, so no mid-conversation branch exists and the
+ * "what happens to the turns after it" question never arises for an
+ * old message). Remove every rendered .edit-btn FIRST (an older
+ * bubble's button is stale the moment a newer question lands), then
+ * bail while a turn is in flight (the retryLastTurn guard — the
+ * button never appears or moves mid-turn; runTurn's idle settle
+ * re-runs this at rest), then scan `conversation` NEWEST-FIRST for
+ * `who === "user"` through lastUserRecordIndex() (ASSUMPTION: the
+ * index comes from the record scan — the markLastRetryable
+ * last-brain-index rule, one `who` over — NOT from a DOM↔record
+ * index map: the DOM and the record list are parallel today, but
+ * re-deriving the index from the record keeps the editor correct
+ * after the task-02 truncation), and bail on -1 or a missing
+ * lastUserWrap — the wrap is assigned exactly where a user bubble
+ * is created (runTurn's fresh send, the restore's user branch) and
+ * cleared by startNewChat, so a stale wrap can never carry the
+ * button. startNewChat needs no call: its list reset removes the
+ * buttons along with the list (the phase-49 reasoning). Task 02
+ * reuses lastUserRecordIndex() for the truncation. */
+function lastUserRecordIndex() {
+ for (let i = conversation.length - 1; i >= 0; i -= 1) {
+ if (conversation[i].who === "user") return i;
+ }
+ return -1;
+}
+
+function markLastEditable() {
+ messagesEl.querySelectorAll(".edit-btn").forEach((b) => b.remove());
+ if (uiState === UI_STATE.thinking || uiState === UI_STATE.streaming) return;
+ if (lastUserRecordIndex() === -1) return; // no user record — nothing to edit
+ if (!lastUserWrap) return; // no tracked bubble — a stale wrap never carries the button
+ appendEditButton(lastUserWrap);
+}
+
/* Phase 59 (owner-locked 2026-08-31, TODO.md L3): the bottom-right
* "Save as doc" action of EVERY completed brain bubble (deflected
* included — same scope as Tune; a stopped partial is a note, not an
@@ -940,6 +1023,212 @@ function openTuneForm(wrap, toggleBtn) {
form.querySelector("textarea").focus();
}
+/* Phase 159 (task 01, TODO.md L3): the INLINE editor in the bubble —
+ * the openTuneForm family (owner-locked 2026-10-05: editing happens
+ * IN the bubble, not the composer — the composer keeps its own draft
+ * untouched by editing). A labeled textarea (rows 3, maxlength =
+ * MAX_QUESTION_CHARS — the 4000 cap stays single-sourced) prefilled
+ * from the record's text (through .value — never an HTML string, the
+ * house no-injection rule), Save (submit) + Cancel, and a
+ * role=alert .edit-error line. While open the rendered .bubble is
+ * hidden (.is-editing — the question appears ONCE); Cancel / Escape
+ * restore it and return focus to the toggle button (the openTuneForm
+ * cancel rule); Ctrl/Cmd+Enter submits. One editor at a time.
+ * Stale-click guard (the phase-49 discipline): the click's wrap must
+ * still be lastUserWrap — a superseded bubble's button is inert.
+ *
+ * Save (task 02 — the resend): guards first, in order — the
+ * in-flight no-op (a save can never start a second turn) and the
+ * empty trim (the .edit-error line, the form stays open —
+ * ChatRequest.message / ChatMessage.text both require min_length=1;
+ * the >4000 case is unreachable: the textarea carries the
+ * maxlength). Then: the trimmed text REPLACES the record in place
+ * (conversation[editIdx].text); the TAIL TRUNCATION drops every
+ * record the OLD question produced (conversation.splice(editIdx + 1)
+ * — stale by construction, never rewritten — the phase-114
+ * whole-turn rule), the matching DOM bubbles are removed (every
+ * .msg after lastUserWrap), and the turn bookkeeping resets
+ * (lastBrainWrap = null; leavePartialIndex cleared to -1 when it
+ * pointed past editIdx — a partial saved from the dropped turn
+ * must not be re-persisted into the new shape). The bubble text
+ * re-renders through renderMarkdown (the addMessage renderer — the
+ * markdown rules stay in one place); the attachment (if the
+ * question carried one) survives the re-render (the img is
+ * re-prepended — phase 123's one bubble-image position). The
+ * truncated shape persists — saveConversation() (localStorage,
+ * trimToBudget rides it unchanged) + persistConversation() (the
+ * phase-55 auto-save — fire-and-forget, never blocks the turn; a
+ * shortened messages array is already legal — no new field, no
+ * migration, A10 stays stateless). markLastRetryable() re-targets:
+ * no brain record exists after the drop, so the call simply clears
+ * every .retry-btn (the re-ask's settle re-appends it on the fresh
+ * bubble). The editor closes, the in-flight guard re-checks (the
+ * handler is ONE synchronous stretch — no await between the guard
+ * and the call), and runTurn(text, { reask: true }) re-asks: reask
+ * skips the user append + save point 1 (the edited question is the
+ * LAST record, so history = conversation.slice(0, -1) is exactly
+ * the prior turns and the question is never duplicated), and NO
+ * image is passed (the phase-49/123 locked A7 rule: a re-ask sends
+ * text only — the record keeps its image key, the bubble keeps the
+ * attachment). The promise is returned (the retryLastTurn
+ * convention) — runTurn never rejects; a failure lands in the
+ * phase-120 failed-turn path. The composer is never touched (the
+ * unsent draft survives the edit — input.value / autoGrow /
+ * updateCharCount stay untouched). The visible re-render is the
+ * feedback — no new live region (the #send-status announcer stays
+ * the sole a11y announcer, the phase-55 convention). */
+let editSeq = 0; // unique ids for one open edit form's inputs
+
+function openEditor(wrap, toggleBtn) {
+ if (wrap !== lastUserWrap) return; // stale click — the button moved on
+ document.querySelectorAll(".edit-form").forEach((f) => f.remove()); // one at a time
+ const body = wrap.querySelector(".msg-body");
+ if (!body) return;
+ const editIdx = lastUserRecordIndex();
+ if (editIdx === -1) return;
+ editSeq += 1;
+ const inputId = `edit-input-${editSeq}`;
+ const form = document.createElement("form");
+ form.className = "edit-form";
+ form.noValidate = true;
+ const label = document.createElement("label");
+ label.setAttribute("for", inputId);
+ label.textContent = "Edit your question";
+ const ta = document.createElement("textarea");
+ ta.id = inputId;
+ ta.name = "question";
+ ta.setAttribute("rows", "3");
+ ta.setAttribute("maxlength", String(MAX_QUESTION_CHARS));
+ ta.value = conversation[editIdx].text; // prefill through .value — never an HTML string
+ if (input && input.placeholder) ta.placeholder = input.placeholder; // the composer's placeholder, reused
+ form.append(label, ta);
+ const actions = document.createElement("div");
+ actions.className = "edit-form-actions";
+ const editSaveBtn = document.createElement("button");
+ editSaveBtn.type = "submit";
+ editSaveBtn.className = "edit-save";
+ editSaveBtn.textContent = "Save";
+ const cancelBtn = document.createElement("button");
+ cancelBtn.type = "button";
+ cancelBtn.className = "edit-cancel";
+ cancelBtn.textContent = "Cancel";
+ actions.append(editSaveBtn, cancelBtn);
+ form.appendChild(actions);
+ const status = document.createElement("p");
+ status.className = "edit-error";
+ status.setAttribute("role", "alert");
+ status.hidden = true;
+ form.appendChild(status);
+
+ const bubble = wrap.querySelector(".bubble");
+ function closeEditor() {
+ form.remove();
+ if (bubble) bubble.classList.remove("is-editing");
+ toggleBtn.focus();
+ }
+ ta.addEventListener("keydown", (e) => {
+ if (e.key === "Escape") {
+ e.preventDefault();
+ closeEditor(); // cancel — restore the bubble, return focus to the toggle
+ } else if (e.key === "Enter" && (e.ctrlKey || e.metaKey)) {
+ e.preventDefault();
+ form.requestSubmit(); // Ctrl/Cmd+Enter submits
+ }
+ });
+ cancelBtn.addEventListener("click", closeEditor);
+ form.addEventListener("submit", (e) => {
+ e.preventDefault();
+ // In-flight re-check (the in-flight discipline): a save can never
+ // start a second turn — no-op while a turn is in flight (the
+ // form stays open; the user can Cancel or wait for the settle).
+ if (uiState === UI_STATE.thinking || uiState === UI_STATE.streaming) return;
+ const text = ta.value.trim();
+ if (!text) {
+ // Empty guard: the question can't be empty (the schema's
+ // min_length=1, both sides) — refused in-form, the form stays
+ // open (the note is never lost, the openTuneForm failure way).
+ status.textContent = "Ask something first — the question can't be empty.";
+ status.hidden = false;
+ return;
+ }
+ // Replace in place (LOCKED): the edited text IS the record from
+ // this point on.
+ conversation[editIdx].text = text;
+ // Truncate the tail (LOCKED — the phase-49 redo-in-place rule,
+ // one level up: the question is REPLACED instead of kept
+ // verbatim): every record the OLD question produced is stale by
+ // construction and is dropped outright (never rewritten — the
+ // phase-114 whole-turn rule). The edited question is now the
+ // LAST record — runTurn's history = conversation.slice(0, -1)
+ // invariant holds unchanged, and the question is never
+ // duplicated into the history.
+ // Phase 159 (task 03): this truncation happens BEFORE the re-ask's turn starts, so the new turn's rememberBrainTurn index bookkeeping (the replaceIndex/leavePartialIndex correlation — reset to -1 when it points past editIdx, and again at runTurn's start; trimToBudget only drops HEAD-most records) sees the post-splice array and can never be confused by the drop.
+ conversation.splice(editIdx + 1);
+ // The matching DOM bubbles are removed: every .msg after the
+ // question's bubble (#messages' direct children are the bubbles,
+ // in order — the empty-state div is a leading child, so the
+ // trailing siblings are exactly the dropped tail).
+ let n = lastUserWrap.nextSibling;
+ while (n) {
+ const next = n.nextSibling;
+ n.remove();
+ n = next;
+ }
+ // Turn bookkeeping resets with the drop: the removed answer is
+ // no longer a retry target, and the phase-73 pagehide partial
+ // pointer must not survive the truncation — a partial saved from
+ // the dropped turn must not be re-persisted into the new shape
+ // (the settle's identity guard would fall back to an append).
+ // -1 = none (the safe value; the next runTurn also resets it
+ // turn-locally).
+ lastBrainWrap = null;
+ if (leavePartialIndex > editIdx) leavePartialIndex = -1;
+ // The bubble text re-renders through renderMarkdown (the
+ // addMessage renderer — the markdown rules stay in one place);
+ // the attachment (if any) survives the re-render (re-prepended —
+ // phase 123's one bubble-image position).
+ if (bubble) {
+ const img = bubble.querySelector(".msg-image");
+ bubble.innerHTML = renderMarkdown(text);
+ if (img) bubble.prepend(img);
+ }
+ // The truncated shape persists NOW (a crash never resurrects the
+ // pre-edit text or the stale tail): saveConversation() writes
+ // localStorage (trimToBudget rides it unchanged) +
+ // persistConversation() auto-saves the row (the phase-55 path —
+ // fire-and-forget, never blocks the turn; a shortened messages
+ // array is already legal — no new field, no migration, A10
+ // stays stateless).
+ saveConversation();
+ persistConversation();
+ // The Retry button re-targets the (now removed) tail: no brain
+ // record exists after the drop, so the call simply clears every
+ // .retry-btn (the re-ask's settle re-appends it on the fresh
+ // bubble).
+ markLastRetryable();
+ closeEditor();
+ // In-flight re-check (the double-check — earned by the handler
+ // being ONE synchronous stretch from the guard above to this
+ // call: there is no await in between, so uiState cannot change;
+ // the re-check keeps the invariant explicit): a save can never
+ // start a second turn.
+ if (uiState === UI_STATE.thinking || uiState === UI_STATE.streaming) return;
+ // Re-ask (LOCKED): reask skips the user-bubble append + the
+ // persistence save point 1 (the question is already in the DOM
+ // and in the record — it is never duplicated), and NO image is
+ // passed (the phase-49/123 locked A7 rule: a re-ask sends text
+ // only — the record keeps its image key, the bubble keeps the
+ // attachment). The promise is returned (the retryLastTurn
+ // convention) — runTurn never rejects; a failure lands in the
+ // phase-120 failed-turn path. The composer was never touched
+ // (the unsent draft survives the edit).
+ return runTurn(text, { reask: true });
+ });
+ if (bubble) bubble.classList.add("is-editing");
+ body.appendChild(form);
+ ta.focus();
+}
+
/* ---------- avatar glyphs (phase 08: emoji-free chrome) ----------
* Inline SVG as string constants so the message renderer and the typing
* indicator share exactly the same marks. currentColor lets the CSS theme
@@ -2260,6 +2549,7 @@ function renderStoredMessage(m) {
// instead of the old forced "auto" — noted per the phase-42 task.
if (m.who === "user") {
const wrap = addMessage("user", renderMarkdown(m.text), true);
+ lastUserWrap = wrap; // phase 159: the LAST restored user bubble wins (the mirror of the brain line below)
// Phase 123 (task 03, TODO L6): the restored record may carry the
// question's attached image — `m.image`, the STORED PATH (A5:
// never base64; a pre-phase / text-only record has no key at all,
@@ -2413,6 +2703,7 @@ function restoreConversation() {
currentChatId = record ? record.chatId : null; // phase 55: the link survives reloads
for (const m of conversation) renderStoredMessage(m);
markLastRetryable(); // phase 49: the restored last brain bubble is retryable
+ markLastEditable(); // phase 159: the restored last user bubble is editable
}
/* ---------- saved-chats row link (phase 50; auto-saved since phase 55) ----------
@@ -2480,6 +2771,7 @@ async function restoreSavedChatFromUrl() {
conversation = messages; // REPLACES the local conversation (owner-locked)
for (const m of conversation) renderStoredMessage(m);
markLastRetryable(); // parity with the local restore: Retry on the last brain bubble
+ markLastEditable(); // phase 159: parity with the local restore: Edit on the last user bubble
currentChatId = chatId; // linked: a subsequent Save updates THIS row
saveConversation(); // mirror to localStorage — a plain refresh returns here
// Phase 53 (task 05): the `stale` flag is server-computed (task 03 —
@@ -2887,6 +3179,7 @@ function startNewChat() {
if (uiState === UI_STATE.thinking || uiState === UI_STATE.streaming) return;
conversation = [];
currentChatId = null; // phase 55: unlinked — a fresh row on its first message
+ lastUserWrap = null; // phase 159: the editable wrap resets with the conversation (buttons die with the list reset below)
if (staleBanner) staleBanner.hidden = true; // phase 53: the banner described the cleared conversation
clearStoredConversation();
removeTyping();
@@ -3245,6 +3538,7 @@ function finalizeFailedTurn(
lastBrainWrap = fwrap;
}
markLastRetryable(); // the in-bubble Retry lands on the failed bubble
+ markLastEditable(); // phase 159: the failed turn's question stays editable (the trim-and-re-ask remedy — the settle re-runs at idle)
}
/* Phase 49 (owner-locked 2026-08-29, TODO.md L4): the chat turn —
@@ -3266,12 +3560,13 @@ async function runTurn(text, { reask = false, image = null } = {}) {
// text-only send, every re-ask — A7: a redo re-sends the text
// only) leaves the bubble and the record byte-identical to
// pre-phase.
- addMessage(
+ const userWrap = addMessage(
"user",
renderMarkdown(text),
true, // reveal my message (owner-kept)
image ? { src: image.src || image.path, alt: image.alt } : null
);
+ lastUserWrap = userWrap; // phase 159: the newest question bubble is the editable one
// Persistence save point 1: the question is stored the moment it is
// sent, so a failed/interrupted turn never loses it. The `image`
// key (the stored path) joins the `bor.chat.v1` record only when an
@@ -3647,6 +3942,7 @@ async function runTurn(text, { reask = false, image = null } = {}) {
appendRelated(wrap, ev.related); // phase 113 — above the actions row
appendTuneButton(wrap); // every completed brain bubble is tunable
markLastRetryable(); // phase 49: the Retry button is last-bubble-only
+ markLastEditable(); // phase 159: the done turn's question is editable (the in-flight guard no-ops here — the runTurn idle settle lands it)
// Phase 59: the RAW persisted markdown (never the rendered
// HTML) — exactly the string rememberBrainTurn stores above,
// so a reload (the restore path) offers the identical draft.
@@ -3732,12 +4028,24 @@ async function runTurn(text, { reask = false, image = null } = {}) {
}, leavePartialIndex); // persist what the user actually saw
lastBrainWrap = fwrap;
markLastRetryable(); // phase 49: the fallback bubble is retryable too
+ markLastEditable(); // phase 159: the failed turn's question stays editable (the in-flight guard no-ops here — the runTurn idle settle lands it)
appendSaveAsDocButton(fwrap, fallback); // phase 59: parity with the done path
}
} catch (err) {
if (aborted) {
// The 300s guard already took the turn to the error state — its
// own abort surfaces here, and it is never read as a user stop.
+ // Phase 159 (task 03): the aborted settle must not strand the
+ // question — the same mark pair as the other non-`done` settles.
+ // markLastRetryable re-targets (a timed-out turn persists NO
+ // brain record — the phase-120 exclusion — so the pair re-lands
+ // the previous turn's target and clears stale buttons), and
+ // markLastEditable lands Edit on the question NOW (the guard
+ // bails only on thinking/streaming — the error state passes;
+ // the finally idle-settle re-runs it — the remove-then-append
+ // keeps the double pass harmless).
+ markLastRetryable();
+ markLastEditable();
} else if (stoppedByUser || err?.name === "AbortError") {
// Phase 48 (owner-locked): the STOP path — no error banner. When
// answer text streamed, keep the partial on screen and persist it
@@ -3767,6 +4075,7 @@ async function runTurn(text, { reask = false, image = null } = {}) {
}, leavePartialIndex);
lastBrainWrap = wrap; // the stopped partial is the prime retry candidate
markLastRetryable(); // phase 49: Retry on the stopped partial
+ markLastEditable(); // phase 159: the stopped turn's question stays editable (the in-flight guard no-ops here — the runTurn idle settle lands it)
}
// Pre-token / thinking-only stop: persist NOTHING brain-side
// (phase-20 convention — the question is already saved on send).
@@ -3817,6 +4126,13 @@ async function runTurn(text, { reask = false, image = null } = {}) {
cancelStream(res); // the reader lock is released — no unhandled rejection
turnAbort = null; // phase 48: the turn's abort owner is spent
if (uiState !== UI_STATE.idle) setUiState(UI_STATE.idle);
+ // Phase 159 (task 01): the terminal settle (idle) is the ONE mark
+ // pass that lands the Edit button at rest — the mid-turn paired
+ // call sites (done / zero-frame / stop / failed funnel) no-op on
+ // the in-flight guard, so this re-run at idle is what actually
+ // appends (a New-chat-mid-turn clears the records + the wrap, so
+ // this is a no-op there by construction).
+ markLastEditable();
if (stoppedByUser) sendStatus.textContent = "Answer stopped.";
// Phase 143 (TODO L5): the focus-back is a DESKTOP courtesy — on a
// coarse pointer (a phone/tablet) focusing the composer pops the
diff --git a/frontend/assets/styles.css b/frontend/assets/styles.css
index 32effc5..ef0d50e 100644
--- a/frontend/assets/styles.css
+++ b/frontend/assets/styles.css
@@ -1027,6 +1027,37 @@ a.answer-image:hover { text-decoration: underline; } /* flat — the caption und
.retry-btn svg { width: 14px; height: 14px; display: block; }
.retry-btn:hover { background: var(--brand-soft); color: var(--ink); }
+/* Phase 159 (task 01, TODO L3): the "Edit" button — the
+ * trim-and-re-ask action in the .msg-meta.msg-actions row (phase 130)
+ * of the NEWEST user bubble (markLastEditable — the phase-49
+ * single-target discipline, one `who` over). The exact visual family
+ * of .retry-btn (same pill size/spacing, the global :focus-visible
+ * ring, >=44px via min-height) so the meta actions read as a set —
+ * but neutral: ink-soft -> ink on hover (Tune keeps the brand pair).
+ * The pencil glyph rides currentColor. No per-button auto margin
+ * (phase 130 — the row's justify right-aligns the cluster). Contrast:
+ * ink-soft on --bg ~8.6:1, ink ~15:1, hover ink on --brand-soft
+ * ~15.7:1 — all AA. */
+.edit-btn {
+ display: inline-flex;
+ align-items: center;
+ justify-content: center;
+ gap: 0.35rem;
+ min-height: 44px;
+ padding: 0.35rem 0.8rem;
+ border-radius: 999px;
+ border: 1px solid var(--line);
+ background: transparent;
+ color: var(--ink-soft);
+ font: inherit;
+ font-weight: 600;
+ font-size: 0.82rem;
+ white-space: nowrap;
+ cursor: pointer;
+}
+.edit-btn svg { width: 14px; height: 14px; display: block; }
+.edit-btn:hover { background: var(--brand-soft); color: var(--ink); }
+
/* Phase 59 (owner-locked 2026-08-31, TODO.md L3): the "Save as doc"
button — the bottom-right action of every completed brain bubble's
meta row (the JS gates: admin + a configured docs repo; this rule
@@ -1193,6 +1224,84 @@ a.answer-image:hover { text-decoration: underline; } /* flat — the caption und
font-weight: 600;
}
+/* Phase 159 (task 01, TODO L3): the inline EDIT form in the newest
+ * user bubble — the .tune-form card family (labeled textarea +
+ * Save/Cancel, both ≥44px; the textarea's maxlength = the 4000 cap,
+ * single-sourced from MAX_QUESTION_CHARS in app.js). While open the
+ * rendered .bubble is hidden (.is-editing) so the question appears
+ * ONCE; Cancel / Escape restore it and return focus to the toggle.
+ * Save rejection (role=alert) keeps the form open (the note is never
+ * lost — the openTuneForm failure way). */
+.msg.user .bubble.is-editing { display: none; }
+.edit-form {
+ display: flex;
+ flex-direction: column;
+ gap: 0.5rem;
+ background: var(--surface);
+ border: 1px solid var(--brand-soft);
+ border-radius: var(--radius-sm);
+ padding: 0.75rem 0.85rem;
+}
+.edit-form label {
+ font-size: 0.85rem;
+ font-weight: 600;
+ color: var(--ink-soft);
+}
+.edit-form textarea {
+ font: inherit;
+ font-size: 0.9rem;
+ color: var(--ink);
+ background: var(--surface);
+ border: 1px solid var(--line);
+ border-radius: var(--radius-sm);
+ padding: 0.5rem 0.6rem;
+ resize: vertical;
+ min-height: 2.6rem;
+}
+.edit-form-actions { display: flex; gap: 0.5rem; }
+.edit-save {
+ display: inline-flex;
+ align-items: center;
+ justify-content: center;
+ min-height: 44px;
+ padding: 0.4rem 1.1rem;
+ border: 0;
+ border-radius: var(--radius-sm);
+ background: var(--brand);
+ color: var(--bg);
+ font: inherit;
+ font-weight: 700;
+ cursor: pointer;
+}
+.edit-save:hover:not(:disabled) { background: var(--brand-hover); }
+.edit-save:disabled { opacity: 0.6; cursor: wait; }
+.edit-cancel {
+ display: inline-flex;
+ align-items: center;
+ justify-content: center;
+ min-height: 44px;
+ padding: 0.4rem 1rem;
+ border-radius: var(--radius-sm);
+ border: 1px solid var(--line);
+ background: transparent;
+ color: var(--ink-soft);
+ font: inherit;
+ font-weight: 600;
+ cursor: pointer;
+}
+.edit-cancel:hover { background: var(--brand-soft); color: var(--brand-ink); }
+/* Inline save rejection (role=alert): err pair ≈9.1:1 — form is kept. */
+.edit-error {
+ margin: 0 0 0 0.25rem;
+ background: var(--err-bg);
+ color: var(--err-ink);
+ border: 1px solid var(--err-line);
+ border-radius: var(--radius-sm);
+ padding: 0.45rem 0.8rem;
+ font-size: 0.85rem;
+ font-weight: 600;
+}
+
/* Header panel above the messages: notes newest-first, per-note delete,
designed empty state. */
.steering-panel {
@@ -5707,6 +5816,7 @@ a.answer-image:hover { text-decoration: underline; } /* flat — the caption und
.app-main > .steering-panel { width: calc(100% - 1.8rem); }
.tune-btn { min-height: 44px; }
.retry-btn { min-height: 44px; }
+ .edit-btn { min-height: 44px; }
/* Phase 27: the tuning page squeezes like the other cards — the row
padding tightens; the icon+label actions keep their 44px floor and
the note text ellipsizes (min-width: 0). */
diff --git a/pyproject.toml b/pyproject.toml
index 9020b0b..913116e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -50,6 +50,14 @@ target-version = "py312"
[tool.ruff.lint]
select = ["E", "F", "W", "I", "UP", "B", "SIM"]
+# The phase-159 task-01 test embeds the FULL byte-pin of app.js's
+# ``runTurn`` (32KB, 584 lines — the house byte-pin convention for the
+# phase's "NOT touched" contract). The pin must stay byte-identical to
+# the JS source, so its long JS comment lines cannot be wrapped — E501
+# is ignored for that file only (the test code itself is wrapped).
+[tool.ruff.lint.per-file-ignores]
+"tests/unit/test_frontend_edit_message.py" = ["E501"]
+
[tool.pyright]
pythonVersion = "3.12"
typeCheckingMode = "standard"
diff --git a/tests/e2e/test_edit_and_resend.py b/tests/e2e/test_edit_and_resend.py
new file mode 100644
index 0000000..a589c9a
--- /dev/null
+++ b/tests/e2e/test_edit_and_resend.py
@@ -0,0 +1,622 @@
+"""Phase 159 E2E (Playwright): edit the last question and re-ask it.
+
+Source: ``TODO.md`` L3 — "Need to be able to edit and resend a message.
+Got 'Question too long — trim it and re-ask' but I can't trim it
+because I can't edit it." Run in isolation (DB must be up:
+``podman compose up -d db``):
+
+ uv run pytest tests/e2e/test_edit_and_resend.py -v --no-cov
+
+MOCK-ONLY suite: ``E2E_REAL_LLM=1`` is not supported — the failure
+shape is the deterministic injection in ``tests/e2e/mock_llm.py``
+(the phase-67 ``always fail`` trigger). The phase-114 "Question too
+long — trim it and re-ask." frame takes the IDENTICAL settle path
+(this suite's driver case rides it through the mock's
+``ALWAYS_FAIL_TRIGGER`` 500s → retry-budget exhaustion → the terminal
+``error`` frame → ``finalizeFailedTurn``): the EXACT detail string is
+real-endpoint-only (it is the server's embed-input-too-large
+short-circuit — ``app/api/chat.py`` — which the mock's embeddings
+endpoint never raises), so the mock's 500 exhaustion (the phase-120
+zero-frame shape) is the driver case's stand-in.
+
+The contract under test (phase 159, owner-locked 2026-10-05):
+
+* EXACTLY ONE editable bubble — the most recent user message (the
+ ``markLastRetryable`` single-target discipline, one ``who`` over);
+ earlier bubbles are never editable.
+* The Edit opens an INLINE editor in the bubble (the ``.tune-form``
+ family — the textarea prefilled with the question,
+ ``maxlength`` = the 4000 cap, Save/Cancel, a ``role=alert`` error
+ line); Cancel/``Escape`` restore the bubble and return focus to the
+ toggle.
+* Save = REPLACE + TRUNCATE + RE-ASK (the phase-49 redo-in-place rule,
+ one level up): the edited text replaces the record in place, every
+ record after it is dropped (DOM + ``bor.chat.v1`` + the saved chat
+ row), and a fresh answer streams from the edited text with
+ ``runTurn(text, { reask: true })`` — the question is never
+ duplicated, the composer's unsent draft survives.
+* In-flight discipline: no Edit button while a turn runs; the button
+ lands at the settle.
+
+KB seed (the phase-120 ``test_failed_turn_retry.py`` direct-seed
+pattern, the task's ``docs/homelab/kubernetes.md``): ONE fixture
+document — the "How is my Kubernetes cluster set up?" questions
+FTS-hit it → HIGH → the grounded path (the re-asked turns stream the
+grounded ``MOCK_ANSWER_MARKER`` answer).
+
+Test → contract mapping:
+
+1. ``test_edit_last_question_reasks_in_place`` — send, grounded answer
+ (ONE old brain bubble), the user bubble carries Edit; the editor
+ prefills the EXACT question; append " in one line" + Save: exactly
+ ONE user bubble (the edited text), the old answer bubble is gone,
+ the new answer streams with the marker, ``bor.chat.v1`` holds
+ ``[user(edited), brain]`` with NO duplicate question, and the
+ auto-saved ``saved_chats`` row matches the localStorage shape key-
+ for-key (polled — the fire-and-forget PUTs land in order, the
+ truncated shape is the final state; the DB stores the
+ schema-normalized shape, the integration ``_expect`` convention).
+2. ``test_only_the_last_question_is_editable`` — two turns: exactly
+ ONE ``.edit-btn`` exists, on the SECOND user bubble; the first has
+ none (the single-target discipline, owner-locked).
+3. ``test_edit_cancel_is_a_no_op`` — open the editor, ``Escape``: the
+ bubble text, the record, and the answer are unchanged (the
+ ``localStorage`` payload is byte-identical before/after), the
+ ``.edit-form`` is gone, and focus RETURNS to the Edit toggle
+ (``document.activeElement`` is the ``.edit-btn``).
+4. ``test_edit_drops_a_stale_tail_and_survives_refresh`` — after an
+ edit-save, ``page.reload()``: the edited question + the new answer
+ restore, the DROPPED answer never reappears (one brain bubble, the
+ fresh one — the old text is absent), and Edit is back on the
+ question (the restore's mark pair).
+5. ``test_failed_turn_question_is_editable_and_trim_reasks`` — the
+ driver case: the ``always fail`` trigger settles the turn with the
+ terminal ``error`` frame + the failed bubble (the phase-120
+ zero-frame shape — the phase-114 "question too long" frame takes
+ this identical settle path, its exact detail string is
+ real-endpoint-only, see the module docstring); Edit exists on the
+ question BESIDE the failed bubble's Retry; trimming (the trigger
+ stripped) + Save streams the grounded answer (the failed record is
+ part of the dropped tail — ``failed: true`` never survives).
+6. ``test_edit_is_inert_while_the_turn_runs`` — the ``write a long
+ answer`` trigger (~8 s): NO ``.edit-btn`` while the turn runs
+ (the in-flight guard — the button never appears or moves
+ mid-turn); at the ``done`` settle the button lands.
+7. ``test_composer_draft_survives_an_edit`` — negative: a typed,
+ UNSSENT composer draft survives the edit-save (the save handler
+ never touches ``input.value`` / ``autoGrow`` /
+ ``updateCharCount`` — the composer keeps its own draft).
+"""
+from __future__ import annotations
+
+import hashlib
+import json
+import re
+import time
+from collections.abc import Callable, Iterator
+from datetime import UTC, datetime
+from pathlib import Path
+
+import pytest
+from playwright.sync_api import Page, expect
+from sqlalchemy import text
+from sqlalchemy.orm import Session
+
+from app.db import SessionLocal
+from app.models import Chunk, Document
+from e2e.auth_helpers import login
+from tests.e2e.mock_llm import (
+ ALWAYS_FAIL_TRIGGER,
+ LONG_ANSWER_TRIGGER,
+ embed_text,
+)
+
+REPO = Path(__file__).resolve().parents[2]
+
+# --------------------------------------------------------------------------
+# Seed + questions (see the module docstring for the gate notes)
+# --------------------------------------------------------------------------
+
+SEED_SOURCE = "docs"
+SEED_PATH = "homelab/kubernetes.md"
+KUB_CONTENT = (REPO / "tests" / "fixtures" / "docs" / SEED_PATH).read_text()
+
+#: The grounded question (the phase-120 suite's — FTS-hits the seed).
+Q = "How is my Kubernetes cluster set up?"
+#: Test 2's second turn (the seed's workloads section — FTS-hits too).
+Q2 = "Which workloads does my Kubernetes cluster run?"
+#: Test 4's edit — the original tokens plus one (grounding preserved —
+#: a superset of the seed's hit tokens), DISTINCT from the original so
+#: the mock's question echo makes the old vs the new answer
+#: distinguishable byte-for-byte.
+Q_EDITED = "How is my Kubernetes cluster set up, briefly?"
+#: Test 1's edit — append the task's " in one line" to the question.
+Q_TEST1_EDITED = "How is my Kubernetes cluster set up? in one line"
+#: Test 5's failure question (the phase-67 trigger — every streaming
+#: request 500s → the retry-budget exhaustion, the phase-120 shape).
+FAIL_Q = f"{Q} {ALWAYS_FAIL_TRIGGER}"
+#: Test 6's long answer (the mock's ~8 s pacing — the in-flight window).
+LONG_Q = f"{Q} {LONG_ANSWER_TRIGGER}"
+#: Test 7's unsent composer draft.
+DRAFT = "draft question about backups — do not send yet"
+
+#: The app's terminal LLM-failure copy (app/api/chat.py's LLMError
+#: frame) — the error detail the note/banner/record all carry.
+ERROR_COPY = "The chat model dropped the connection — try again?"
+MOCK_ANSWER_MARKER = "Deterministic mock answer for E2E"
+
+STORAGE_KEY = "bor.chat.v1"
+
+
+def _js_const(name: str) -> str:
+ """A frontend string constant, read from app.js — the E2E asserts
+ against the SAME text the page renders (no JS/Python drift)."""
+ js = (REPO / "frontend" / "assets" / "app.js").read_text(encoding="utf-8")
+ m = re.search(rf'const {name}\s*=\s*\n?\s*"([^"]*)"', js)
+ assert m, f"const {name} not found in app.js"
+ return m.group(1)
+
+
+FAILED_TURN_TEXT = _js_const("FAILED_TURN_TEXT")
+
+
+# --------------------------------------------------------------------------
+# DB seeding (TRUNCATE-then-seed, the phase-120 pattern)
+# --------------------------------------------------------------------------
+
+
+def _seed(db: Session) -> None:
+ """The single fixture document (see the module docstring)."""
+ md = Document(
+ source=SEED_SOURCE,
+ path=SEED_PATH,
+ full_path=f"/tmp/{SEED_PATH}",
+ title="Kubernetes",
+ content=KUB_CONTENT,
+ content_hash=hashlib.sha256(KUB_CONTENT.encode()).hexdigest(),
+ indexed_at=datetime.now(UTC),
+ )
+ db.add(md)
+ db.flush()
+ # One chunk carrying the mock's own embedding → genuine token overlap
+ # for the grounded questions (the FTS path carries them to HIGH).
+ db.add(
+ Chunk(
+ document_id=md.id,
+ position=0,
+ content=KUB_CONTENT,
+ embedding=embed_text(KUB_CONTENT),
+ )
+ )
+
+
+def _reset_db() -> None:
+ """Truncate the KB (plus the prompt-shaping tables), then re-seed.
+
+ ``steering_notes`` / ``kb_overview`` are truncated too, so the
+ prompts are byte-stable regardless of leftovers from other suites.
+ """
+ with SessionLocal() as db:
+ db.execute(
+ text("TRUNCATE chunks, documents, query_log, steering_notes, kb_overview")
+ )
+ db.commit()
+ _seed(db)
+ db.commit()
+
+
+@pytest.fixture(autouse=True)
+def clean_chats() -> Iterator[None]:
+ """The send auto-saves a ``saved_chats`` row per turn (phase 55) —
+ truncate around every test so the suite starts from (and leaves)
+ an empty deployment (the phase-80/103 isolation pattern)."""
+ with SessionLocal() as db:
+ db.execute(text("TRUNCATE saved_chats"))
+ db.commit()
+ yield
+ # The auto-save is fire-and-forget (the browser never awaits the
+ # PUT): a short margin lets the last turn's PUT land server-side
+ # before the TRUNCATE, so the teardown never 500s an in-flight
+ # upsert (the "Could not refresh instance" race). This runs AFTER
+ # the page closes (LIFO finalization), so the PUT is either done
+ # or aborted — never in flight.
+ time.sleep(0.75)
+ with SessionLocal() as db:
+ db.execute(text("TRUNCATE saved_chats"))
+ db.commit()
+
+
+# --------------------------------------------------------------------------
+# localStorage reads + the auto-saved row poll + the turn flow
+# --------------------------------------------------------------------------
+
+
+def _stored_raw(page: Page) -> str:
+ """The raw ``bor.chat.v1`` payload (the byte-identity check's
+ unit — a string, not a parsed dict)."""
+ raw = page.evaluate(f"() => localStorage.getItem('{STORAGE_KEY}')")
+ assert raw is not None, "the conversation key must exist in localStorage"
+ return raw
+
+
+def _stored(page: Page) -> dict:
+ """The persisted ``bor.chat.v1`` conversation (localStorage — the
+ phase-14 store the restore reads on refresh)."""
+ return json.loads(_stored_raw(page))
+
+
+def _poll_saved_messages(
+ title: str, want: Callable[[list[dict]], bool]
+) -> list[dict]:
+ """Wait for the auto-saved row's ``messages`` to match *want* (the
+ phase-55 upserts are fire-and-forget — there is no status line to
+ wait on; the ``#send-label`` settle only proves the LAST save
+ point fired, not that its PUT landed). The row's title keeps the
+ FIRST question on re-Save (title-keep), so the edit's row is the
+ same row, polled by the original title."""
+ deadline = time.monotonic() + 15
+ last: list[dict] | None = None
+ while time.monotonic() < deadline:
+ with SessionLocal() as db:
+ row = db.execute(
+ text("SELECT messages FROM saved_chats WHERE title = :t"),
+ {"t": title},
+ ).scalar_one_or_none()
+ if row is not None:
+ last = row
+ if want(row):
+ return row
+ time.sleep(0.2)
+ raise AssertionError(
+ f"the saved_chats row for {title!r} never settled (last: {last!r})"
+ )
+
+
+def _shape_matches(row: list[dict], stored: list[dict]) -> bool:
+ """The row's shape matches the localStorage shape key-for-key.
+
+ The DB stores the schema-NORMALIZED shape (``ChatMessage``
+ re-validation — every optional key present as an explicit
+ ``None``, the integration suite's ``_expect`` convention), while
+ localStorage keeps the RAW client records (a key subset). The
+ match: every localStorage key equals the row's value, and the row
+ carries no NON-NULL key the record lacks (no stale metadata,
+ no missing content)."""
+ if len(row) != len(stored):
+ return False
+ for r, s in zip(row, stored, strict=True):
+ for k, v in s.items():
+ if r.get(k) != v:
+ return False
+ for k, v in r.items():
+ if k not in s and v is not None:
+ return False
+ return True
+
+
+def _submit(page: Page, question: str) -> None:
+ page.fill("#message-input", question)
+ page.click("#send-btn")
+ # The user bubble lands synchronously with the submit handler.
+ expect(page.locator(".msg.user .bubble").last).to_contain_text(question)
+
+
+def _assert_settled(page: Page) -> None:
+ """The turn has FULLY settled: the ``done`` frame is processed
+ (save point 2 — the answer record persisted through
+ ``rememberBrainTurn`` — synchronously in the frame handler) BEFORE
+ the finally's idle state flips the label to Send. The label is
+ the settle signal, so a localStorage / row read after it is
+ race-free for the record's shape (the marker can be visible a few
+ frames before ``done`` — the last deltas carry it)."""
+ expect(page.locator("#send-label")).to_have_text("Send", timeout=30_000)
+
+
+def _assert_grounded_settled(page: Page) -> str:
+ """The grounded answer streamed + the turn settled: returns the
+ brain bubble's text (the phase-120 ``_assert_redo_succeeded``
+ shape, minus the redo's failed-marker checks)."""
+ bubble = page.locator(".msg.brain .bubble").last
+ expect(bubble).to_contain_text(MOCK_ANSWER_MARKER, timeout=30_000)
+ _assert_settled(page)
+ return bubble.inner_text()
+
+
+def _open_editor(page: Page, expected_prefill: str) -> None:
+ """Click the Edit toggle (it must exist on the last user bubble)
+ and pin the textarea's prefill (the record's text, exact)."""
+ expect(page.locator(".msg.user .edit-btn")).to_have_count(1)
+ page.click(".msg.user .edit-btn")
+ ta = page.locator(".edit-form textarea")
+ expect(ta).to_be_visible(timeout=10_000)
+ expect(ta).to_have_value(expected_prefill)
+
+
+def _save_editor(page: Page, new_text: str) -> None:
+ page.fill(".edit-form textarea", new_text)
+ page.click(".edit-form .edit-save")
+
+
+# --------------------------------------------------------------------------
+# 1 — the flow: send → Edit (prefilled) → trim + Save → the old answer
+# is gone, the new one streams, the record + the row are truncated
+# --------------------------------------------------------------------------
+
+
+def test_edit_last_question_reasks_in_place(
+ page: Page, app_url: str, mock_llm: int, db_ready: None
+) -> None:
+ _reset_db()
+ page.set_default_timeout(30_000)
+ login(page, app_url, next="/")
+
+ _submit(page, Q)
+ old_answer = _assert_grounded_settled(page)
+ # The old answer is the ONLY brain bubble (the pre-edit shape).
+ expect(page.locator(".msg.brain")).to_have_count(1)
+
+ _open_editor(page, Q)
+ _save_editor(page, Q_TEST1_EDITED)
+
+ # The old answer bubble is GONE (the truncation removed it); the
+ # question appears ONCE, edited; the fresh answer streams from the
+ # edited text.
+ expect(page.locator(".msg.user .bubble")).to_have_count(1)
+ expect(page.locator(".msg.user .bubble")).to_have_text(Q_TEST1_EDITED)
+ new_answer = _assert_grounded_settled(page)
+ expect(page.locator(".msg.brain")).to_have_count(1)
+ assert new_answer != old_answer, "the old answer is gone — the new one streams"
+
+ # The record (localStorage): [user(edited), brain] — the edited
+ # text replaces the record in place, the tail is dropped, and the
+ # question is never DUPLICATED (no record carries the old text;
+ # the new answer merely echoes the edited question).
+ stored = _stored(page)
+ assert [m["who"] for m in stored["messages"]] == ["user", "brain"]
+ assert stored["messages"][0]["text"] == Q_TEST1_EDITED
+ assert Q not in [m["text"] for m in stored["messages"]], (
+ "no duplicate question — the old text is gone from the record"
+ )
+ assert MOCK_ANSWER_MARKER in stored["messages"][1]["text"]
+
+ # The auto-saved row (polled — the title keeps the FIRST question
+ # on re-Save): the truncated shape [user(edited), brain], matching
+ # the localStorage shape key-for-key (the DB is the durable boundary).
+ row = _poll_saved_messages(
+ Q, lambda msgs: len(msgs) == 2 and msgs[0].get("text") == Q_TEST1_EDITED
+ )
+ assert _shape_matches(row, stored["messages"]), (
+ "the saved_chats row matches the localStorage shape — the "
+ "truncated conversation persisted (no stale tail, no duplicate)"
+ )
+
+
+# --------------------------------------------------------------------------
+# 2 — the single-target discipline: exactly ONE editable bubble, the
+# NEWEST question (owner-locked 2026-10-05)
+# --------------------------------------------------------------------------
+
+
+def test_only_the_last_question_is_editable(
+ page: Page, app_url: str, mock_llm: int, db_ready: None
+) -> None:
+ _reset_db()
+ page.set_default_timeout(30_000)
+ login(page, app_url, next="/")
+
+ _submit(page, Q)
+ _assert_grounded_settled(page)
+ _submit(page, Q2)
+ _assert_grounded_settled(page)
+
+ # Exactly ONE .edit-btn in the whole DOM, on the SECOND user
+ # bubble; the first (the older question) carries none — the
+ # remove-then-append single target, one `who` over.
+ expect(page.locator(".edit-btn")).to_have_count(1)
+ expect(page.locator(".msg.user").nth(1).locator(".edit-btn")).to_have_count(1)
+ expect(page.locator(".msg.user").nth(0).locator(".edit-btn")).to_have_count(0)
+
+
+# --------------------------------------------------------------------------
+# 3 — negative: Cancel (Escape) is a no-op — the bubble, the record,
+# and the answer are unchanged; focus returns to the toggle
+# --------------------------------------------------------------------------
+
+
+def test_edit_cancel_is_a_no_op(
+ page: Page, app_url: str, mock_llm: int, db_ready: None
+) -> None:
+ _reset_db()
+ page.set_default_timeout(30_000)
+ login(page, app_url, next="/")
+
+ _submit(page, Q)
+ answer = _assert_grounded_settled(page)
+ question_text = page.locator(".msg.user .bubble").inner_text()
+ before = _stored_raw(page)
+
+ expect(page.locator(".msg.user .edit-btn")).to_have_count(1)
+ page.click(".msg.user .edit-btn")
+ ta = page.locator(".edit-form textarea")
+ expect(ta).to_be_visible(timeout=10_000)
+ # A real edit attempt (so the no-op is meaningful): the textarea is
+ # changed, then Escape cancels.
+ page.fill(".edit-form textarea", "something entirely different")
+ ta.press("Escape")
+
+ # The form is gone; the bubble + the answer are byte-identical; the
+ # localStorage payload is byte-identical (nothing persisted —
+ # cancel never touches the record).
+ expect(page.locator(".edit-form")).to_have_count(0)
+ expect(page.locator(".msg.user .bubble")).to_have_text(question_text)
+ assert page.locator(".msg.brain .bubble").last.inner_text() == answer
+ assert _stored_raw(page) == before, (
+ "cancel is a no-op — the localStorage payload is byte-identical"
+ )
+ # Focus RETURNED to the Edit toggle (the openTuneForm cancel rule).
+ is_toggle = page.evaluate(
+ "() => !!(document.activeElement && document.activeElement.classList"
+ " && document.activeElement.classList.contains('edit-btn'))"
+ )
+ assert is_toggle, "focus must return to the Edit toggle on Escape"
+
+
+# --------------------------------------------------------------------------
+# 4 — the truncated shape survives a refresh: the edited question + the
+# new answer restore; the dropped answer never reappears; Edit is
+# back on the question
+# --------------------------------------------------------------------------
+
+
+def test_edit_drops_a_stale_tail_and_survives_refresh(
+ page: Page, app_url: str, mock_llm: int, db_ready: None
+) -> None:
+ _reset_db()
+ page.set_default_timeout(30_000)
+ login(page, app_url, next="/")
+
+ _submit(page, Q)
+ old_answer = _assert_grounded_settled(page)
+
+ _open_editor(page, Q)
+ _save_editor(page, Q_EDITED)
+ new_answer = _assert_grounded_settled(page)
+ assert new_answer != old_answer
+
+ # The refresh: the restore reads the truncated localStorage shape —
+ # the edited question + the fresh answer.
+ page.reload()
+ expect(page.locator("#messages > .msg")).to_have_count(2)
+ expect(page.locator(".msg.user .bubble")).to_have_text(Q_EDITED)
+ restored = page.locator(".msg.brain .bubble").last
+ expect(restored).to_contain_text(MOCK_ANSWER_MARKER, timeout=30_000)
+ assert page.locator(".msg.brain .bubble").last.inner_text() != old_answer, (
+ "the DROPPED answer never reappears — the restore shows the "
+ "fresh one (no stale tail resurrected)"
+ )
+ # Edit is back on the restored question (the restore's mark pair —
+ # the mirror of the live settle).
+ expect(page.locator(".msg.user .edit-btn")).to_have_count(1)
+ # The restored record is the truncated shape (the restore is
+ # lossless: the edited text, the fresh answer, no duplicate).
+ stored = _stored(page)
+ assert [m["who"] for m in stored["messages"]] == ["user", "brain"]
+ assert stored["messages"][0]["text"] == Q_EDITED
+ assert Q not in [m["text"] for m in stored["messages"]]
+
+
+# --------------------------------------------------------------------------
+# 5 — the driver case (TODO.md L3): a failed turn's question is
+# editable; trimming + Save re-asks successfully (the phase-114
+# "Question too long" frame takes this identical settle path — its
+# exact detail string is real-endpoint-only, see the module
+# docstring)
+# --------------------------------------------------------------------------
+
+
+def test_failed_turn_question_is_editable_and_trim_reasks(
+ page: Page, app_url: str, mock_llm: int, db_ready: None
+) -> None:
+ _reset_db()
+ page.set_default_timeout(30_000)
+ login(page, app_url, next="/")
+
+ _submit(page, FAIL_Q)
+
+ # The ``always fail`` trigger: every streaming request 500s → the
+ # retry-budget exhaustion → the terminal error frame — the
+ # phase-120 zero-frame shape (banner + the failed bubble).
+ banner = page.locator("#kb-banner")
+ expect(banner).to_have_attribute("role", "alert", timeout=60_000)
+ expect(banner).to_contain_text(ERROR_COPY)
+ expect(page.locator("#banner-retry")).to_be_visible(timeout=10_000)
+ expect(page.locator("#send-label")).to_have_text("Send", timeout=30_000)
+ brain = page.locator(".msg.brain")
+ expect(brain).to_have_count(1)
+ expect(brain.locator(".bubble")).to_have_text(FAILED_TURN_TEXT)
+ note = brain.locator(".failed-note")
+ expect(note).to_have_count(1)
+ expect(note).to_contain_text(ERROR_COPY)
+ expect(brain.locator(".retry-btn")).to_have_count(1)
+
+ # THE remedy: Edit exists on the question BESIDE the failed
+ # bubble's Retry (the guard bails on thinking/streaming only — the
+ # error state passes; the failed record is the stale tail the
+ # edit-save truncates).
+ expect(page.locator(".msg.user .edit-btn")).to_have_count(1)
+
+ _open_editor(page, FAIL_Q)
+ _save_editor(page, Q) # the trigger stripped out
+
+ # The trimmed question re-asks successfully: the grounded answer
+ # streams in place of the failed bubble (the failed record is
+ # dropped — never kept, never rewritten).
+ _assert_grounded_settled(page)
+ expect(page.locator(".msg.user .bubble")).to_have_text(Q)
+ expect(page.locator(".msg.brain")).to_have_count(1)
+ expect(page.locator(".failed-note")).to_have_count(0)
+ stored = _stored(page)
+ assert [m["who"] for m in stored["messages"]] == ["user", "brain"]
+ assert stored["messages"][0]["text"] == Q
+ assert stored["messages"][-1].get("failed") in (None, False), (
+ "the failed record is part of the dropped tail — it never "
+ "survives the edit"
+ )
+ assert FAILED_TURN_TEXT not in stored["messages"][-1]["text"]
+
+
+# --------------------------------------------------------------------------
+# 6 — in-flight discipline: no Edit button while a turn runs; the
+# button lands at the settle
+# --------------------------------------------------------------------------
+
+
+def test_edit_is_inert_while_the_turn_runs(
+ page: Page, app_url: str, mock_llm: int, db_ready: None
+) -> None:
+ _reset_db()
+ page.set_default_timeout(30_000)
+ login(page, app_url, next="/")
+
+ # The ~8 s long answer — a comfortable in-flight window (the
+ # mock's 12-char / 0.02 s pacing).
+ _submit(page, LONG_Q)
+ # The turn is in flight (the button IS the Stop control —
+ # phase 48). While it runs the Edit button never appears (the
+ # in-flight guard — the button never appears or moves mid-turn).
+ expect(page.locator("#send-label")).to_have_text("Stop", timeout=30_000)
+ expect(page.locator(".edit-btn")).to_have_count(0)
+ # At the ``done`` settle the button lands (the idle-settle mark
+ # pass — the at-rest landing).
+ expect(page.locator("#send-label")).to_have_text("Send", timeout=60_000)
+ expect(page.locator(".msg.user .edit-btn")).to_have_count(1)
+
+
+# --------------------------------------------------------------------------
+# 7 — negative: the composer's unsent draft survives an edit (the save
+# handler never touches the composer — task 02's work item)
+# --------------------------------------------------------------------------
+
+
+def test_composer_draft_survives_an_edit(
+ page: Page, app_url: str, mock_llm: int, db_ready: None
+) -> None:
+ _reset_db()
+ page.set_default_timeout(30_000)
+ login(page, app_url, next="/")
+
+ _submit(page, Q)
+ _assert_grounded_settled(page)
+
+ # The unsent draft (typed AFTER the settle — the composer keeps its
+ # own draft, untouched by the edit below).
+ page.fill("#message-input", DRAFT)
+
+ _open_editor(page, Q)
+ _save_editor(page, Q_EDITED)
+ _assert_grounded_settled(page)
+
+ # The draft is STILL in the composer (the save handler never writes
+ # input.value / autoGrow / updateCharCount — the edit is the
+ # in-bubble editor's job, the composer's is separate).
+ assert page.locator("#message-input").input_value() == DRAFT
diff --git a/tests/integration/test_chats_api.py b/tests/integration/test_chats_api.py
index 51a2f15..e27efba 100644
--- a/tests/integration/test_chats_api.py
+++ b/tests/integration/test_chats_api.py
@@ -1036,6 +1036,170 @@ def test_shared_serve_includes_the_brain_answer_image_ref(
assert "answer_image" not in messages[0]
+# ---------------------------------------------------------------------------
+# Phase 159 (task 02): edit-and-resend — the SAVE shape. The client
+# edits the last question: the record is replaced in place, EVERY
+# record after it is dropped, and the edited question becomes the LAST
+# record. The auto-save then PUTs that shortened list. This pins the
+# claim "no schema change is needed": a shortened ``messages`` array
+# with the edited last user record is ALREADY legal on the existing
+# ``SavedChatUpdate`` path (no new field, no migration — A10 stays
+# stateless; the ≤4000 / ≤32 000 caps already cover the edited text).
+# ---------------------------------------------------------------------------
+
+#: The driver case's question (the phase-114 "Question too long" turn)
+#: — long, near the 4 000-char ``ChatRequest.message`` cap, so the
+#: edit trims it down to a short re-askable question.
+LONG_QUESTION = "How do I prune deleted docs " + "and rotate the certificates " * 90
+TRIMMED_QUESTION = "How do I prune deleted docs?"
+
+
+def test_put_edited_truncated_tail_round_trips_byte_identical(
+ admin_client: TestClient, db: Session
+) -> None:
+ """The phase-159 client shape round-trips byte-identically through
+ the EXISTING PUT path: the conversation was
+ [user Q1, brain A1, user Q2-long, brain A2]; the owner trims Q2
+ → Q2', and the auto-save PUTs [user Q1, brain A1, user Q2'] —
+ the tail (A2) is dropped, the last record is the EDITED user
+ record, and the array is SHORTER. The PUT is a plain re-Save
+ (no new field): 200 + ``message_count`` drops to 3, the stored
+ JSONB + the admin GET + the 200 body all round-trip the edited
+ record + the truncated list byte-identically (``_expect``'s full
+ bor.chat.v1 shape), and the title keeps the FIRST question
+ (title-keep on re-Save — the edited second question never
+ re-titles the row)."""
+ q1 = "What is my Traefik port?"
+ a1 = {"who": "brain", "text": "8080."}
+ created = admin_client.post(
+ "/api/chats",
+ json={
+ "messages": [
+ _user(q1),
+ a1,
+ _user(LONG_QUESTION),
+ {"who": "brain", "text": "A long answer."},
+ ]
+ },
+ ).json()
+ assert created["message_count"] == 4
+
+ edited = [_user(q1), a1, _user(TRIMMED_QUESTION)]
+ r = admin_client.put(f"/api/chats/{created['id']}", json={"messages": edited})
+ assert r.status_code == 200, r.text # a shortened array is already legal
+ body = r.json()
+ assert body["message_count"] == 3, "the tail (A2) is dropped — 2 + the edit"
+ assert body["title"] == q1 # title-keep: the edit re-titles nothing
+ assert body["messages"] == _expect(edited)
+
+ # The RAW stored JSONB (the DB is the durable boundary — the
+ # phase-123/124 precedent): the edited last user record + the
+ # truncated list, byte-for-byte, explicit nulls included.
+ raw = db.execute(
+ text("SELECT messages FROM saved_chats WHERE id = :id"),
+ {"id": created["id"]},
+ ).scalar_one()
+ assert raw == _expect(edited)
+
+ # The admin GET round-trips the same shape (the restore path reads
+ # from this surface — a refresh shows the edited question and no
+ # stale tail).
+ got = admin_client.get(f"/api/chats/{created['id']}")
+ assert got.status_code == 200
+ assert got.json()["messages"] == _expect(edited)
+
+
+def test_put_edited_record_keeps_the_user_image_key(
+ admin_client: TestClient,
+) -> None:
+ """The image survives the edit (the phase-49/123 A7 rule's record
+ side): the record KEEPS its ``image`` key when the question is
+ replaced in place + the tail dropped — the re-ask sends text
+ only, but the saved shape (and the bubble's attachment) carry the
+ attachment through the round-trip. The key is present-and-carrying
+ (the phase-123 shape — ``_expect`` covers the base keys, the
+ optional ``image`` key is asserted on top, the phase-123
+ precedent)."""
+ edited = [
+ _user_with_image("What is in this image?"), # edited text, image kept
+ # (the tail — a brain answer — is dropped by the edit)
+ ]
+ created = admin_client.post(
+ "/api/chats",
+ json={
+ "messages": [
+ _user_with_image("What is in this picture?"),
+ {"who": "brain", "text": "A cat, by the look of it."},
+ ]
+ },
+ ).json()
+
+ r = admin_client.put(f"/api/chats/{created['id']}", json={"messages": edited})
+ assert r.status_code == 200, r.text
+ msgs = r.json()["messages"]
+ assert len(msgs) == 1, "the tail is dropped — one record (the edit)"
+ expected = _expect(edited)[0]
+ expected["image"] = IMAGE_PATH
+ assert msgs[0] == expected, (
+ "the attachment key survives the in-place edit (text-only "
+ "re-ask, attachment kept)"
+ )
+
+
+def test_shared_serve_carries_the_edited_truncated_shape(
+ admin_client: TestClient,
+) -> None:
+ """The phase-159 claim pinned on the PUBLIC surface: the
+ edited/truncated conversation needs NO schema change on the shared
+ serve either. The conversation is [user Q1, brain A1, user Q2,
+ brain A2], shared BEFORE the edit (the token predates the shape
+ change), then the owner trims Q2 → Q2' and the auto-save PUTs the
+ post-edit shape [user Q1, brain A1, user Q2'] (the tail dropped,
+ the array shorter, the last record the edited user record). The
+ anonymous ``GET /api/shared/`` still serves exactly the
+ public shape (``title`` + ``messages`` — no id, no timestamps, no
+ token) with the CURRENT row content: the edited record + the
+ truncated list, byte-identical (the read is a point-in-time read
+ of the live row, so the pre-share token rides the post-edit shape
+ — the shared page renders the edited question, no stale tail, no
+ new field)."""
+ q1 = "What is my Traefik port?"
+ a1 = {"who": "brain", "text": "8080."}
+ created = admin_client.post(
+ "/api/chats",
+ json={
+ "messages": [
+ _user(q1),
+ a1,
+ _user(LONG_QUESTION),
+ {"who": "brain", "text": "A long answer."},
+ ]
+ },
+ ).json()
+ share_url = _share(admin_client, created["id"])["share_url"]
+
+ # The edit + the auto-save's PUT (the post-edit shape — the same
+ # shape as the admin-surface pin above, now served publicly).
+ edited = [_user(q1), a1, _user(TRIMMED_QUESTION)]
+ r = admin_client.put(f"/api/chats/{created['id']}", json={"messages": edited})
+ assert r.status_code == 200, r.text
+
+ # The public read: the token (issued BEFORE the shape change) serves
+ # the CURRENT row — the edited user record as the LAST message,
+ # the tail gone, the array shorter, the byte-identical shape.
+ anon = TestClient(fastapi_app) # fresh jar: truly anonymous
+ got = anon.get(f"/api{share_url}")
+ assert got.status_code == 200, got.text
+ body = got.json()
+ assert set(body) == SHARED_OUT_KEYS # no new shared-shape field
+ assert body["title"] == q1 # title-keep: the edit re-titles nothing
+ assert len(body["messages"]) == 3, "the tail (A2) is dropped — 2 + the edit"
+ assert body["messages"] == _expect(edited), (
+ "the public surface serves the edited/truncated shape "
+ "byte-identically — no schema change, no stale tail"
+ )
+
+
def test_public_read_wrong_and_revoked_tokens_404_with_one_detail(
admin_client: TestClient,
) -> None:
diff --git a/tests/unit/test_big_read_progress.py b/tests/unit/test_big_read_progress.py
index bd17bc6..59f4658 100644
--- a/tests/unit/test_big_read_progress.py
+++ b/tests/unit/test_big_read_progress.py
@@ -66,10 +66,19 @@ def test_typing_elapsed_hint_is_built_with_createelement_and_textcontent() -> No
)
# No innerHTML on the typing bubble — the skeleton template
# (wrap.innerHTML in addTyping) is the only bubble-adjacent HTML
- # write, and it must not gain a second one.
- assert js.count("bubble.innerHTML") == 0, (
- "the clock must never assign innerHTML to the typing bubble"
- )
+ # write of the typing indicator, and the clock must not gain a
+ # second one (the typing-clock context: addTyping / startThinking
+ # Clock / stopThinkingClock / removeTyping — the phase-159
+ # openEditor re-render of a USER bubble's .bubble is a different
+ # context and does not count).
+ for name in ("function addTyping", "function startThinkingClock",
+ "function stopThinkingClock", "function removeTyping"):
+ f = js.find(name)
+ assert f != -1, f"{name} must exist"
+ b = js[f : js.find("\n}\n", f)]
+ assert "bubble.innerHTML" not in b, (
+ f"{name} must never assign innerHTML to the typing bubble"
+ )
def test_typing_elapsed_hint_lives_in_start_thinking_clock() -> None:
diff --git a/tests/unit/test_frontend_actions_cluster.py b/tests/unit/test_frontend_actions_cluster.py
index 4352c4f..7c29952 100644
--- a/tests/unit/test_frontend_actions_cluster.py
+++ b/tests/unit/test_frontend_actions_cluster.py
@@ -365,10 +365,13 @@ def test_stop_finalize_appends_actions_last() -> None:
def test_failed_funnel_note_and_retry_join_the_actions_row() -> None:
"""The phase-120 failure funnel (finalizeFailedTurn): the Failed
- note is appended and the funnel ENDS with markLastRetryable — the
- note + Retry in the failed bubble's actions row (the partial
+ note is appended and the funnel ENDS with markLastRetryable
+ immediately followed by markLastEditable (phase 159 task 01 —
+ the failed turn's question is editable too) — the note + Retry
+ + Edit in the failed bubble's actions row (the partial
keeps its streamed text; the zero-frame shape gets a plain
- FAILED_TURN_TEXT bubble). Both shapes end retryable."""
+ FAILED_TURN_TEXT bubble). Both shapes end retryable +
+ editable."""
js = _js()
header = (
"function finalizeFailedTurn(\n"
@@ -382,10 +385,13 @@ def test_failed_funnel_note_and_retry_join_the_actions_row() -> None:
)
lines = [line for line in body.splitlines() if line.strip()]
assert lines[-1].strip() == "}" and lines[-2].strip().startswith(
+ "markLastEditable();"
+ ) and lines[-3].strip().startswith(
"markLastRetryable();"
), (
- "the funnel still ends with the markLastRetryable() call — the "
- "Retry button lands on the failed bubble's actions row"
+ "the funnel ends with the markLastRetryable() + "
+ "markLastEditable() pair — the Retry + Edit buttons land on "
+ "the failed bubble's actions row"
)
diff --git a/tests/unit/test_frontend_edit_message.py b/tests/unit/test_frontend_edit_message.py
new file mode 100644
index 0000000..9bd1b4b
--- /dev/null
+++ b/tests/unit/test_frontend_edit_message.py
@@ -0,0 +1,1867 @@
+"""Unit: the edit-and-resend frontend contract (phase 159, tasks 01–04).
+
+Pins the phase-159 task-01 + task-02 client contract as source
+assertions (the house ``test_frontend_*`` style — no browser): the Edit
+button joins the bubble's ``.msg-actions`` row (getActionsRow — the
+phase-130 house pattern) as a listitem of the ``role=list`` row,
+``markLastEditable`` removes every rendered button FIRST and then
+targets exactly ONE bubble — the newest question (the phase-49
+single-target discipline, one ``who`` over — bailing on the in-flight
+guard, a missing user record, and a missing tracked wrap),
+``lastUserRecordIndex`` is a newest-first ``conversation`` scan,
+``lastUserWrap``'s lifecycle sites, ``openEditor`` renders the
+``openTuneForm`` family (a labeled ``textarea[maxlength]`` bound to
+``MAX_QUESTION_CHARS`` — the 4000 cap stays single-sourced — prefilled
+through ``.value``, never an HTML string; Save/Cancel; a ``role=alert``
+rejection line), the Cancel / ``Escape`` restore paths, the
+Ctrl/Cmd+Enter submit, the empty-guard rejection (the form stays
+open), the in-flight save no-op, and the task-02 SAVE = replace +
+truncate + re-ask flow: the guards (in-flight first, then the empty
+trim) run before the record edit; the trimmed text replaces the record
+in place; ``conversation.splice(editIdx + 1)`` drops the whole tail;
+the matching DOM bubbles are removed from ``lastUserWrap.nextSibling``
+onward; ``lastBrainWrap = null`` + the phase-73 ``leavePartialIndex``
+reset (when it pointed past ``editIdx``) precede the re-ask;
+``saveConversation()`` + ``persistConversation()`` persist the
+truncated shape before the re-ask; ``markLastRetryable()`` re-targets
+(clears — no brain record remains); the editor closes; the double
+in-flight check sits on one synchronous stretch (no ``await``); and
+the re-ask is exactly ``runTurn(text, { reask: true })`` — no image
+(the phase-49/123 A7 text-only rule). The composer stays untouched.
+And — the phase's explicit "NOT touched" contract — ``retryLastTurn``
+is byte-unchanged, ``runTurn`` is pinned at exactly the state the
+phase left it (its sanctioned additions — the task-01
+``lastUserWrap`` assignment + the idle-settle ``markLastEditable()``
+mark pass, and the task-03 aborted-settle mark pair — included;
+no task may restructure it), and — the task-04 regression pins —
+``handleSend`` and ``rememberBrainTurn`` are byte-unchanged (the
+plain send's pre-work and the brain-record funnel the re-ask's
+settle rides are touched by no phase-159 task). Task 03 (the
+driver case — a failed or
+rejected question stays editable) is pinned here too: the
+non-``done`` settle pairings (the ``finalizeFailedTurn`` funnel that
+every HTTP-422 / SSE-``error``-frame turn settles through, the
+zero-frame fallback, the stop finalize, and the 300s guard's
+``aborted`` catch branch — a timed-out turn must not strand the
+question), ``markLastEditable``'s guard naming ONLY
+``UI_STATE.thinking`` / ``UI_STATE.streaming`` (never the error
+state — a failed turn IS idle-or-error at rest), the save guard
+mirroring it byte-identically, the failed ``{ who: "brain",
+failed: true, error }`` record being DROPPED (not kept) by the
+edit-save truncation with ``lastBrainWrap = null`` ahead of the
+re-ask, the restore paths (``renderStoredMessage``'s ``lastUserWrap``
+tracking + the two restore mark pairs — the ``?chat=`` boot load
+confirmed as an editable working copy, no read-only gate), the
+truncation-ordering note (the new turn's ``rememberBrainTurn`` sees
+the post-splice array), and ``showErrorBanner`` byte-unchanged (the
+phase-120 shared pin — Edit is an in-bubble affordance beside
+Retry, never a banner control).
+"""
+from __future__ import annotations
+
+import re
+from pathlib import Path
+
+from tests.unit.test_frontend_failed_turn import (
+ PINNED_RETRY_LAST_TURN,
+ PINNED_SHOW_ERROR_BANNER,
+)
+
+FRONTEND = Path(__file__).resolve().parents[2] / "frontend"
+APP_JS = FRONTEND / "assets" / "app.js"
+STYLES_CSS = FRONTEND / "assets" / "styles.css"
+
+
+def _js() -> str:
+ return APP_JS.read_text(encoding="utf-8")
+
+
+def _css() -> str:
+ return STYLES_CSS.read_text(encoding="utf-8")
+
+
+def _find_body_brace(js: str, start: int) -> int:
+ """The index of the REAL opening brace of a function at *start* —
+ the first ``{`` OUTSIDE the parameter list (paren depth 0), so
+ empty object defaults (``opts = {}``) and destructured parameters
+ (``{ acc, thinking }``) are skipped (the house convention)."""
+ i = start
+ paren = 0
+ while i < len(js):
+ c = js[i]
+ if c == "(":
+ paren += 1
+ elif c == ")":
+ paren -= 1
+ elif c == "{" and paren == 0:
+ return i
+ i += 1
+ return -1
+
+
+def _fn_source(js: str, name: str) -> str:
+ """The full source of ``[async] function name(…){…}`` (signature +
+ body)."""
+ start = js.index(f"function {name}(")
+ brace = _find_body_brace(js, start)
+ depth = 0
+ i = brace
+ while True:
+ c = js[i]
+ if c == "{":
+ depth += 1
+ elif c == "}":
+ depth -= 1
+ if depth == 0:
+ break
+ i += 1
+ return js[start : i + 1]
+
+
+def _fn_body(js: str, name: str) -> str:
+ """Just the body of ``[async] function name(…){…}`` (between the
+ braces)."""
+ src = _fn_source(js, name)
+ start = js.index(f"function {name}(")
+ brace = _find_body_brace(js, start)
+ rel = brace - start
+ return src[rel + 1 : len(src) - 1]
+
+
+# ---------------------------------------------------------------------------
+# EDIT_ICON — the pencil glyph (the retry/tune icon family)
+# ---------------------------------------------------------------------------
+
+
+def test_edit_icon_is_an_aria_hidden_stroke_svg() -> None:
+ """``EDIT_ICON`` is an inline ``aria-hidden`` decoration in the
+ house stroke family (``fill="none"`` + ``stroke="currentColor"``
+ + ``stroke-width="1.7"`` + the 24×24 viewBox — the RETRY_ICON
+ parameters): no icon font, no CDN (A11); the CSS themes the
+ stroke (ink-soft → ink on hover)."""
+ js = _js()
+ m = re.search(r"const EDIT_ICON\s*=\s*\n?\s*'([^']*)'", js)
+ assert m, "const EDIT_ICON must exist as a single-quoted SVG string"
+ icon = m.group(1)
+ assert 'aria-hidden="true"' in icon, "the glyph is decoration"
+ assert 'viewBox="0 0 24 24"' in icon, "the 24×24 viewBox (the family)"
+ assert 'fill="none"' in icon, "stroke family — never a filled glyph"
+ assert 'stroke="currentColor"' in icon, "currentColor — the CSS themes it"
+ assert 'stroke-width="1.7"' in icon, "stroke-width 1.7 (the RETRY_ICON family)"
+
+
+# ---------------------------------------------------------------------------
+# appendEditButton — the Edit button in the actions row
+# ---------------------------------------------------------------------------
+
+
+def test_append_edit_button_joins_the_actions_row() -> None:
+ """``appendEditButton(wrap)`` is shaped exactly like
+ ``appendRetryButton``: it routes through ``getActionsRow(wrap)``
+ (the phase-130 house pattern — the row's LAST row, right-aligned),
+ bails without a ``.msg-body``, keeps ONE button per bubble (the
+ duplicate guard), joins the ``role=list`` row as a ``listitem``
+ (ARIA valid), carries the visible "Edit" label (the accessible
+ name — no ellipsis clipping at this width), and the click opens
+ the editor with the toggle button (for the focus return)."""
+ js = _js()
+ body = _fn_body(js, "appendEditButton")
+ assert "getActionsRow(wrap)" in body, (
+ "the button joins the dedicated .msg-actions row (getActionsRow — "
+ "phase 130 task 02), never the first .msg-meta row"
+ )
+ assert "if (!meta) return;" in body
+ assert (
+ 'if (meta.querySelector(".edit-btn")) return;' in body
+ ), "one .edit-btn per bubble (the duplicate guard, the retry-btn way)"
+ assert 'btn.type = "button";' in body
+ assert 'btn.className = "edit-btn";' in body
+ assert (
+ 'if (meta.getAttribute("role") === "list") btn.setAttribute("role", "listitem");'
+ in body
+ ), "the role=list row joins the button as a listitem (ARIA valid)"
+ assert 'btn.innerHTML = EDIT_ICON + "Edit";' in body, (
+ "the visible 'Edit' label carries the accessible name"
+ )
+ assert 'btn.addEventListener("click", () => openEditor(wrap, btn));' in body, (
+ "the click opens the editor with the toggle (the focus return)"
+ )
+ assert "meta.appendChild(btn);" in body
+
+
+def test_edit_button_is_not_admin_gated() -> None:
+ """Unlike ``appendTuneButton``, ``appendEditButton`` has NO admin
+ gate (the phase-49 Retry precedent — chat is public, so every
+ visitor who can chat can edit the last question; B5's admin-only
+ views are the header views, not the chat actions)."""
+ js = _js()
+ body = _fn_body(js, "appendEditButton")
+ assert "isAdmin" not in body, (
+ "the Edit button is NOT admin-gated (the phase-49 Retry precedent)"
+ )
+
+
+# ---------------------------------------------------------------------------
+# markLastEditable — the single-target discipline (the phase-49 mirror)
+# ---------------------------------------------------------------------------
+
+
+def test_mark_last_editable_removes_first_bails_then_appends_the_single_target() -> None:
+ """``markLastEditable`` mirrors ``markLastRetryable``: it removes
+ EVERY rendered ``.edit-btn`` FIRST (an older bubble's button is
+ stale the moment a newer question lands), then bails on the
+ in-flight guard (thinking/streaming — the ``retryLastTurn`` guard),
+ then bails on a missing user record (``lastUserRecordIndex() ===
+ -1``), then bails on a missing ``lastUserWrap`` (a stale wrap can
+ never carry the button), and appends to ``lastUserWrap`` ONLY —
+ exactly one bubble, the newest question (owner-locked 2026-10-05;
+ earlier bubbles are never editable — no mid-conversation
+ branching)."""
+ js = _js()
+ body = _fn_body(js, "markLastEditable")
+ idx_remove = body.index(
+ 'messagesEl.querySelectorAll(".edit-btn").forEach((b) => b.remove());'
+ )
+ idx_inflight = body.index(
+ "if (uiState === UI_STATE.thinking || uiState === UI_STATE.streaming) return;"
+ )
+ idx_norecord = body.index("if (lastUserRecordIndex() === -1) return;")
+ idx_nowrap = body.index("if (!lastUserWrap) return;")
+ idx_append = body.index("appendEditButton(lastUserWrap);")
+ assert idx_remove < idx_inflight < idx_norecord < idx_nowrap < idx_append, (
+ "remove FIRST, then the in-flight guard, the no-record bail, the "
+ "no-wrap bail, and the single-target append"
+ )
+ assert body.count("appendEditButton(") == 1, (
+ "exactly ONE append — the single-target discipline"
+ )
+
+
+def test_last_user_record_index_is_a_newest_first_scan() -> None:
+ """``lastUserRecordIndex()`` scans ``conversation`` NEWEST-FIRST
+ (``i`` from ``length - 1`` down to 0) for ``who === "user"`` and
+ returns that index — or -1 when the conversation holds no user
+ record (the markLastRetryable last-brain-index rule, one ``who``
+ over; the ASSUMPTION: the index comes from the record scan, NOT a
+ DOM↔record index map — re-deriving keeps the editor correct after
+ the task-02 truncation)."""
+ js = _js()
+ body = _fn_body(js, "lastUserRecordIndex")
+ assert "for (let i = conversation.length - 1; i >= 0; i -= 1) {" in body, (
+ "the scan is newest-first (i from length-1 down)"
+ )
+ assert 'if (conversation[i].who === "user") return i;' in body
+ assert "return -1;" in body, "-1 when there is no user record"
+
+
+# ---------------------------------------------------------------------------
+# lastUserWrap — the lifecycle (the exact mirror of lastBrainWrap)
+# ---------------------------------------------------------------------------
+
+
+def test_last_user_wrap_lifecycle_sites() -> None:
+ """``lastUserWrap`` is a module-scope variable (exactly one
+ declaration) with the three sanctioned lifecycle sites: (a)
+ assigned in ``runTurn``'s fresh-send block — the ``addMessage``
+ wrap is captured and the wrap assigned BEFORE the persistence save
+ point (the question record push); (b) assigned in
+ ``renderStoredMessage``'s user branch — the LAST restored user
+ bubble wins (the mirror of the ``lastBrainWrap`` line below the
+ brain branch); (c) cleared by ``startNewChat`` (the editable wrap
+ resets with the conversation; the list reset removes the buttons
+ with the list, so startNewChat needs no markLastEditable call —
+ the phase-49 reasoning)."""
+ js = _js()
+ assert js.count("let lastUserWrap = null;") == 1, (
+ "exactly one module-scope declaration"
+ )
+ # (a) the runTurn fresh-send assignment (before the save point)
+ rt = _fn_source(js, "runTurn")
+ assert "const userWrap = addMessage(" in rt, (
+ "the fresh send captures the wrap (the addMessage return)"
+ )
+ assert "lastUserWrap = userWrap;" in rt
+ assert rt.index("lastUserWrap = userWrap;") < rt.index("conversation.push("), (
+ "the wrap is assigned before the persistence save point"
+ )
+ # (b) the restore user-branch assignment
+ rst = _fn_body(js, "renderStoredMessage")
+ assert "lastUserWrap = wrap;" in rst, (
+ "the restore user branch assigns the wrap (the mirror of the "
+ "lastBrainWrap line below the brain branch)"
+ )
+ # (c) the startNewChat clear
+ snc = _fn_body(js, "startNewChat")
+ assert "lastUserWrap = null;" in snc, (
+ "startNewChat clears the wrap (the buttons die with the list reset)"
+ )
+
+
+# ---------------------------------------------------------------------------
+# openEditor — the inline form (the openTuneForm family)
+# ---------------------------------------------------------------------------
+
+
+def test_open_editor_renders_a_labelled_capped_textarea_prefilled_from_the_record() -> None:
+ """``openEditor`` renders the ``openTuneForm`` family: one editor
+ at a time (every existing ``.edit-form`` removed first), a
+ ``form.edit-form`` with ``noValidate``, a ``