Web-UI iteration-3 — three queued items landed together.
(A) Design iteration-3 into static/index.html:
- sparkline grid background (<pattern id=sparkGrid> + bg rect behind each
relation-row spark polyline);
- PAD strips → per-turn Δ bars: replace the vertical polyline strip
(stripPoints/proj3 removed) with padDeltas→deltaStrip, a 12-cell HTML
column of diverging bars (newest at bottom, magnitude→width, age→opacity);
- mood orbit → dimetric open box (viewBox 124×140, az35/el25,
D-right/A-left-back/P-up): ghost A×P wall + D×A floor +
orbitProj/orbitShadowY/orbitWallPt/orbitAxisPt, JS-driven animated replay
(orbitFrame per rAF via a singleton startOrbitAnim reading live ORBIT_HIST;
reduced-motion → static final-state).
(B) Memory viewer — a non-bifrost debug read on OUR own store, mirroring the
#18-D2 affect read:
- provider: RatatoskrMemoryStore.list_chunks + count_chunks + shared
add_memory_read_route (GET /memory/chunks?agent_id=&end_user_id=), wired
into build_memory_provider_app + the combined :8392 provider. end_user
strict, agent_id lenient (an {end_user}-only chunk stays visible);
{chunks,count,total}, empty match = 200 (not 404);
- web: _memory_chunks_endpoint (GET /api/memory/chunks) supplies end_user_id
server-side, forwards the browser agent_id, proxies to memory_read_url;
create_app gains memory_read_url, entrypoint reads RATATOSKR_MEMORY_READ_URL;
- pane: loadMemory/renderMemory/setMemHead — a live-polling MEMORY console
pane (content·scope·origin·revision per chunk; count/total distinguish
empty-store from scope-mismatch), polled on open + post-turn.
(C) Markdown pass-2 in markdownSafe: GFM pipe tables (mdTable, alignment
colons), indentation-nested lists (child list inside the open <li>),
ordered-list start=N numbering, streaming robustness (partial fence →
code block; header-without-delimiter → paragraph until it streams in).
esc-first → INV-004 held.
Contract web_debug_surface.contract.md amended in-commit (create_app
memory_read_url; dimetric-orbit + Δ-bar renderConsole POST-002; memory-viewer
+ markdown-pass-2 function contracts). 631 tests green; Playwright-verified
all render paths (dark+light).
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)