vh 7106af5c09 style(tui): UI polish pass (v0.5.1)
Cosmetic refinements on top of v0.5.0's content-only main pane. No
behavior change; ships as a patch bump.

## Color signal — terminal labels tinted per outcome

The transcript's [done]/[error]/[cancelled] labels were plain
foreground (Australis #a9bcc3 white), which made them slow to scan
against the surrounding assistant text. Now tinted per outcome:

- [done]      → Aurora green   (#16B866 / $success)
- [error]     → Dawn red       (#ff491a / $error)
- [cancelled] → Dawn yellow    (#e1c631 / $warning)

The post-Done Rule() separator is also tinted to Australis dark-60
(#86929d) so the streamed-text → markdown-body boundary reads as
chrome, not a content artifact.

## Empty-state placeholders

Tools and Debug panes were stark-empty before any turn fired — easy
to misread as "the pane is broken." Now show placeholder lines on
mount in Sea dark-50 italic:

  Tools tab: (no tool events yet — start a turn that uses tools)
  Debug tab: (waiting for telemetry — start a turn)

The placeholders scroll off naturally as real events fill the panes.

## Live thinking widget self-explains

The thinking-current Static at the top of the right column used to
just display raw thinking content with no context — an operator
glancing at the screen mid-stream might not realize they were
looking at LLM chain-of-thought. Now prefixed with "thinking… " so
the widget self-identifies.

## Spacing + chrome

- Transcript / tools-log / debug-log: 1-cell horizontal padding so
  content doesn't hug the column border.
- thinking-current: italic text-style on top of the dark-60 color,
  so the live-preview band is visually distinct from solid-colored
  log content.
- Active tab in TabbedContent: Aurora bright-cyan label + bold
  text-style, so the eye lands on the currently selected pane.
- Input placeholder text: tinted to Sea dark-50 so it reads as
  placeholder, not content.

## Test impact

3 new tests added (test_done_label_styled_success,
test_empty_state_placeholders_present, plus the polish hits
test_thinking_widget_truncation / test_thinking_coalesce updated for
the "thinking… " prefix). 4 existing tests that checked
`isinstance(w, str) and w.startswith("[done]")` updated to use the
_text_of helper (terminal labels are now RichText, not str).
_spy_writes helper widened to accept positional args after Textual's
internal deferred-render path started passing them positionally
post-Resize.

241/241 GREEN; ruff clean. Live smoke against personal Worldtree
confirmed: Done line renders in Aurora green #16B866 verbatim;
both placeholder lines appear in dark-50; thinking widget shows
"thinking… <content>" during a turn.

Patch bump (v0.5.0 → v0.5.1) per SemVer etiquette: purely cosmetic;
no signature change; no caller-visible behavioral shift.
2026-05-24 15:06:10 -07:00
2026-05-24 15:06:10 -07:00
2026-05-24 15:06:10 -07:00

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

  1. 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.
  2. docs/SPEC-PIN.md — what Worldtree spec version Ratatoskr is built against, where the vendored snapshot lives, and how to bump the pin.
  3. 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. See docs/design-brief.md §2.
  4. CLAUDE.md — Claude Code conventions for this repo (mostly inherited from the Corviduo template).
  5. 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.py lives 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:

  1. Spec-version pin in pyproject.toml (worldtree-spec-rev). Bump explicitly; bumps are a tracked action.
  2. Recorded-SSE snapshot tests at tests/snapshots/. Captured against a live Worldtree; replayed in CI. Re-record after every pin bump.
  3. 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.

  • 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)
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