[BunsDev]

Routines Phase 0, step 2 of the routines spec: the shared decision service. "Move Auto routing and approval rules behind one module, with versioned question sets and a stored receipt for each judgment. Behaviour does not change."

What changes

• routing/decisions.ts now owns the Jev connection, moved unchanged from Router: key resolution, CLI or HTTPS transport, the session-wide switch-off after an auth or billing rejection, the Settings test, and the connection half of status.

• Versioned question sets. QUESTION_SETS = { routing: 1, follow_up: 1, approval: 1 }. The new APPROVAL_QUESTION_SET_VERSION (approvals/gate.ts) and FOLLOW_UP_QUESTION_SET_VERSION (routing/followup.ts) sit beside the routing set's existing QUESTION_SET_VERSION.

• One door to Jev. decisions.connect(set, { threadId | preview }) returns a transport for one set, or says why there is none (disabled / unavailable). Auto routing, follow-up suggestions, the approval gate and Try it all go through it; router.jev() is gone.

• Stored receipts. Every request through a connection appends one JSON line to ~/.modex/app/decisions.jsonl (mode 0600):

  • the set, version, model and transport;
  • the thread, or preview;
  • when it ran and how long it took;
  • Jev's typed answers (choice and confidence, score and confidence, or noul), or the error.

  The state sent to Jev is never stored. Past 4 MB the log starts over and keeps one previous file. A failed write is logged once and never touches a decision. The Settings ping is not a judgment and leaves no receipt.

Behaviour does not change

• Router keeps its public API (status, test, setKey, clearKey, reset, route, followUp) and delegates.
• Each caller keeps its own questions and failure handling. Routing falls back to the heuristic with byte-for-byte the same receipt reasons, follow-ups use the heuristic pick, and approvals fail closed.
• An auth or billing rejection still switches Jev off for the whole session, now explicitly across all three sets.
• The existing routing, follow-up, approval, settings-update and runner-routing tests pass unchanged.

Tests

test/decisions.test.ts:

• the version registry, and that routing status still reports the routing set's version;
• a routing receipt holds typed answers and never the request text;
• an auth rejection on the approval set switches off routing and follow-ups, with routing's exact message, until reset();
• an unconfigured judge asks nothing and stores nothing;
• Try it receipts are marked preview;
• receipt-log rotation, and that an unwritable log never throws.

Verification

• pnpm build && pnpm test: all packages pass (desktop 1,426 passed, 0 failed).
• playwright test e2e/approvals.spec.ts e2e/approval-policy.spec.ts: 6 passed.

Coven-Harness: Claude Code / claude-opus-5-5

[vercel]

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Project	Deployment	Actions	Updated
modex	Ready	Preview	Oct 16, 2026 8:36am UTC

[github-code-quality]

Code coverage overview

Languages: TypeScript

TypeScript / code-coverage-agent

main b8ac801	decision-service 81bb814	+/-
61%	61%	0%

View coverage of the 6 most impacted files.

File	main b8ac801	decision-service 81bb814	+/-
apps/desktop/sr...ngine/runner.ts	99%	99%	0%
apps/desktop/sr...provals/gate.ts	100%	100%	0%
apps/desktop/sr...ckends/codex.ts	95%	95%	0%
apps/desktop/sr...uting/router.ts	100%	100%	0%
apps/desktop/sr...ing/followup.ts	94%	95%	+1%
apps/desktop/sr...ng/decisions.ts	0%	100%	+100%

ℹ️ Calculations represent line coverage. Results may change as calculations are updated.

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_{Updated October 16, 2026 09:02 UTC}