vh
56dce00b2b
Triaged the heid-bug-hunt panel (Gróa+Hulda+Regin+Kimi, 11 distinct findings).
Fixed the real ones; the 3-arm "memory_context unverifiable" alarm was refuted
(tests + live SDK verify), and caller-supplied agent_id is accepted under the
LAN/no-auth debug-tool trust model (documented, not fixed).
Constructible crashes (were uncaught HTTP 500s from wire input):
- _tts_endpoint: coerce non-str / unhashable agent_id -> None before the voice-map
lookup (matches the submit path's guard); an unhashable {} / [] TypeError'd -> 500.
- PadState.from_obj: catch ArithmeticError — float() of a huge-int JSON literal
raises OverflowError, absent from the except tuple -> 500; now a neutral read.
- _submit_turn_endpoint: require a non-blank STR content — a truthy non-str crashed
pin_kb_context's question.strip() mid-stream instead of a deterministic 400.
pin_kb_context also isinstance-guards the question defensively.
Robustness:
- kb_bridge: delete the throwaway Mimir consult session (SDK sessions.delete) on
success/error/timeout via a caller-owned holder so cleanup survives a mid-stream
timeout — consults no longer accumulate server-side under the fixed partition.
- _stream_turn_endpoint: emit a ": keepalive" SSE comment BEFORE the (<=20s) KB
consult so a reverse proxy / EventSource doesn't drop the silent connection into
a false "WIRE LOST" before the turn starts.
- _tts_endpoint: cap text at 8000 chars (413) before the process-global lock;
gateway timeout 120s->60s — one huge/stalled body can't starve all TTS.
- tts_synthesize: validate the WAVE form tag (bytes 8:12), not just the RIFF magic.
- index.html: revoke the audio blob URL in cancelTts (removeAttribute+load fires
neither ended nor error, so the src's own revoke never ran -> per-turn blob leak).
TDD: +11 tests (543 green). Live-smoked on :8765: all five constructible adversarial
inputs now return 200/413/400, never 500.
Ratatoskr
A Worldtree Conversation API debug console. 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. The interactive surface is the
web console (ratatoskr-web); a headless --send CLI drives scripted smokes.
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 (Worldtree must be running)
# Interactive web console:
ratatoskr-web --host 0.0.0.0 --port 8765
# Headless CLI (scripted smoke):
ratatoskr --send "hello" --new --agent mimir --api-key "$WORLDTREE_API_KEY"
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 a small, fixed surface:
httpx+httpx-sse(network layer)starlette+uvicorn(the web console; thewebextra)- 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)