phase: 117_tool_call_compact

All verification complete — every gate green. Final report:

**Phase 117 final verification pass — all criteria verified** (tasks 01–04 were already in `complete/`; I re-verified the full gate myself, no code changes needed)
- **Verified:** `appendToolLine` wraps lines in `details.tool-calls-disclosure` (open live, `closeToolCalls` at delta/done/stop + restore-closed, count via textContent); `addToolLines` parity (closed); `.tool-call` deboxed / `code` dechipped; new disclosure/summary CSS; only the one pinned CSS assert updated
- `uv run pytest` → **2466 passed**
- `uv run pytest --cov=app --cov-report=term-missing` → **99%** on `app/` (>90% floor)
- E2E in isolation: `test_tool_call_compact.py` **4 passed** (fold/expand/deboxed-flow/restored-folded); `test_agent_document_tools.py` **4 passed**; `test_big_read_progress.py` **4 passed** (live disclosure open + `.tool-elapsed` visible); `test_thinking_display.py` **5 passed**; `test_smoke.py` **3 passed**
- `uv run ruff check . && uv run pyright` → clean (pyright 0 errors, 0 warnings)
- Completion criteria: pins 1–4 ✅ (E2E above); live "calling tool" state byte-identical ✅ (`test_frontend_tool_states.py` 10 passed incl. `test_calling_tool_label_strings`); scope ✅ — `git diff` limited to the 3 frontend assets + 2 unit tests + E2E story + phase files, **0 changes in `app/`**
- Notable: `TODO.md` carries a **pre-existing uncommitted owner edit** (new retrieval-context idea) already in the tree before this pass — left untouched, will ride along in the harness commit; pre-existing committed quirk: the brain-wave commit's styles.css comment mislabels itself "Phase 117" (cosmetic, out of this diff)
- No commit made (harness commits + moves the phase); **next pending phase: none** — `todo/` holds only phase 117

tests/unit/test_frontend_tool_states.py

@@ -248,20 +248,21 @@ def test_thinking_block_stays_on_top_of_tool_lines() -> None:
 
 
 def test_tool_call_style_is_accent_and_contrast_safe() -> None:
-    """styles.css: .tool-call is an inline row with the accent palette
-    (distinct from the brand-ink Thinking block) and mono `code` styling
-    for the path; the wrapper stacks lines without shifting the column."""
+    """styles.css (phase 117 debox): .tool-call is a deboxed
+    inline-flow row — the label + the mono `code` path are ONE
+    continuous wrapping run (no flex, no card), the accent rides the
+    TEXT color (distinct from the brand-ink Thinking block), and the
+    `code` is inline mono text with no chip; the wrapper stacks lines
+    without shifting the column."""
     css = _css()
     assert ".tool-calls" in css
     assert ".tool-call" in css
     m = re.search(r"\.tool-call \{([^}]*)\}", css)
     assert m, "the .tool-call rule must exist"
     row = m.group(1)
-    assert "display: flex" in row, "inline row: icon + text"
     assert "var(--accent-ink)" in row, (
         "accent color distinguishes it from the thinking block (≈10.4:1 on surface)"
     )
-    assert "var(--accent-line)" in row, "accent left border"
     code = re.search(r"\.tool-call code \{([^}]*)\}", css)
     assert code, "the path `code` must be styled"
     assert "var(--mono)" in code.group(1)