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Two operator-driven changes off v0.4.1: 1. **Main pane is content-only.** Pre-v0.5.0 the transcript mixed assistant text with telemetry (Thinking closed runs, WorkerPhase, TextBoundary) — only tool events were factored out per #13. The transcript now receives ONLY: user-prompt echo, assistant Text deltas, [done]/[error]/[cancelled] terminal labels, and the post-Done Markdown render. All telemetry routes to a new Debug tab in the right column. 2. **Chrome no longer blue.** Textual's default Header / Footer / active-tab styling tints with `$primary` (Aurora blue under Australis), which read as garish on dark terminals. Header, Footer, and the TabbedContent tab strip get explicit `background: $surface` (Sea bright-black #373b46) so the chrome sits cool and unobtrusive against the Ice black background. ## Layout reshape ``` LEFT COLUMN (content only): RIGHT COLUMN (telemetry): transcript (RichLog, 1fr) thinking-current (Static, dock top) prompt (Input, dock bottom) TabbedContent: Tools (tool_start, tool_result) Debug (thinking, worker_phase, text_boundary) ``` The thinking-current live-preview Static moves from left → right column so the left column is genuinely content-only. Live thinking visibility now persists across tab switches (it docks above the TabbedContent, not inside any tab). ## Presenter routing (TuiPresenterState.render) Signature widens with `debug_log: RichLog`. Routing matrix: Text → log (transcript) Done / Error / Cancelled → log (transcript) [terminal labels] ToolStart / ToolResult → tools_log (Tools tab) Thinking (closed run) → debug_log (Debug tab) WorkerPhase → debug_log (Debug tab) TextBoundary → debug_log (Debug tab) Thinking (per-delta) → thinking_widget (live preview) INV-009 render-exception fallback preserves routing per event class (new INV-020) — ToolStart/Result falls back to tools_log; Thinking/WorkerPhase/TextBoundary to debug_log; everything else to log. ## Keybindings - Ctrl+1 → Tools tab (existing, unchanged) - Ctrl+2 → Debug tab (NEW) `pane-name` footer widget updates dynamically as the operator switches tabs ("Tools" ↔ "Debug"). This was previously deferred to "the multi-tab issue" per the Volva contract-review amendment; multi-tab now exists, so the dynamic update lands here. ## Contract amendments docs/contracts/issues/13.contract.md amended in-place: - INV-015 amended: transcript is content-only; telemetry routes to debug_log. Old routing (telemetry in transcript) retired under the no-backwards-compat rule. - INV-017 amended: thinking-current docks to right column (was left). - INV-019 new: two TabPanes (Tools + Debug), Ctrl+1/Ctrl+2 bindings, dynamic pane-name update. - INV-020 new: render-exception fallback preserves per-event-class routing. - Layout-spec snapshot ASCII diagram updated. Drift-check clean. ## Tests 239/239 GREEN (+3 new: debug_tab_exists, ctrl_2_activates_debug_tab, pane_name_updates_on_tab_switch). 6 existing tests adjusted for the new routing (test_thinking_closes_one_debuglog_entry, test_multiple_thinking_runs_each_get_debuglog_entry, test_render_exception_fallback, test_cancelled_mid_thinking_closes, test_worker_phase_demoted_to_debug_log, test_left_column_content_only). ruff clean. Live smoke against personal Worldtree: mimir KB-search turn populated tools_log with 11 lines of tool events (search_library + read_note); debug_log with 20 lines of worker_phase + thinking content; transcript stayed content-only with `❯ user-prompt` (Aurora bright-cyan) + assistant text deltas. Routing matrix holds end-to-end. (Diagnostic note: RichLog.lines is the rendered- output buffer; inactive TabPane content shows lines=0 until the tab activates and renders. Internal write store is correct — this is a Textual rendering quirk, not a routing bug.) Minor bump (v0.4.1 → v0.5.0) per SemVer etiquette: visible routing surface change for operators; transcript and Debug tab contents look different from yesterday's v0.4.1.
Ratatoskr
A Worldtree Conversation API debug TUI. Runs up and down Worldtree's API surface — sessions, turns, persona, tools, admin events, Bifrost state — carrying messages between layers. Like the squirrel.
The product is the observability surface; chat is the input mechanism. Devs run Ratatoskr against a local Worldtree to watch a turn flow through every layer of the system, side-by-side, in one terminal.
Status
v0 scaffold. Design locked; implementation hasn't started. The dev team owns the implementation pass.
Read in this order
docs/design-brief.md— the locked design. Read this first. Every architectural decision is recorded with its rationale, the alternatives considered, and (where relevant) the operator's lock-in moment.docs/SPEC-PIN.md— what Worldtree spec version Ratatoskr is built against, where the vendored snapshot lives, and how to bump the pin.docs/conversation-api-spec.md— the vendored Worldtree spec snapshot. Read this to understand the API surface Ratatoskr consumes. Do not import anything from a Worldtree checkout — the boundary is the spec, not the code. Seedocs/design-brief.md§2.CLAUDE.md— Claude Code conventions for this repo (mostly inherited from the Corviduo template).persistent-memory.md— durable intent across context resets. Update as decisions and state evolve.
Quickstart
# 1. Environment
uv venv && source .venv/bin/activate
uv pip install -e ".[dev]"
# 2. Verify the spec pin
cat docs/SPEC-PIN.md # documented Worldtree SHA + bump procedure
# 3. Tests (none yet; scaffold only)
uv run pytest
# 4. Run against a local Worldtree (once implementation lands)
# Worldtree must be running: python -m core.conversation_api
ratatoskr --agent mimir
What this repo is NOT
- NOT a polished consumer for Worldtree's end-users — that's the web app.
- NOT a Worldtree admin tool — admin CLI is separate (
sessions_cli.pylives in Worldtree). - NOT a featuretracking shadow of the web app — when the Conversation API surface grows, Ratatoskr does not necessarily grow with it.
- NOT a remote-Worldtree debug client — file-tail surfaces (persona log, server log) assume local-dev posture.
The full negative-clause list lives in docs/design-brief.md §6.
Boundary rule
Ratatoskr depends on three things only:
httpx+httpx-sse(network layer)textual(TUI framework)- Worldtree's published Conversation API spec at the pinned SHA
Hard rule: no imports from a Worldtree checkout. No core.* imports,
no from worldtree.*, no shared models, no submodule of Worldtree. The
spec is the entire surface. Boundary smoke test at tests/test_no_worldtree_imports.py
enforces this in CI.
Version-skew strategy
The dev team is decoupled from Worldtree's dev team. To detect drift when Worldtree changes the API:
- Spec-version pin in
pyproject.toml(worldtree-spec-rev). Bump explicitly; bumps are a tracked action. - Recorded-SSE snapshot tests at
tests/snapshots/. Captured against a live Worldtree; replayed in CI. Re-record after every pin bump. - Conformance smoke test — boots Worldtree via Docker compose in CI, runs a one-turn happy path. Catches integration-level drift.
See docs/SPEC-PIN.md for the bump procedure.
Consumer-side discoveries
If you find a spec gap, ambiguity, or missing-but-needed endpoint while working on Ratatoskr: route the discovery back to worldtree-dev via althing rather than via PR on Worldtree directly. The separate-team boundary is intentional and helps catch spec gaps that an in-tree consumer would paper over.
Related repos
- Worldtree — the API Ratatoskr consumes
- brokkr-smithy — authored this design brief
- Skaldsong — another Worldtree API consumer (Python; render-and-aggregate pattern)
- mead-hall — another Worldtree API consumer (TypeScript; server-side broker)