Build Log

Alloy First Steerable Arc

July 20, 2026

A real Alloy Arc now supports durable follow-up, cancellation, interruption, and explicit recovery without leaving Forge.

AlloyMilestone 2Execution ControlClaude Code

Milestone tickets completed

browser acceptance turns

automated tests passing

terminal outcomes proven

Timeline

Contract

Turn-boundary steering chosen

Each direction became a separate Execution under one Arc-scoped provider session.

Control

Durable authority added

Arc fences, lineage, idempotency, runner leases, attempts, and terminal arbitration moved control into Neon.

Forge

Operator conduct became real

Forge exposed state-derived follow-up, cancellation, history, interruption, and recovery controls.

Hostile proof

Browser-to-provider acceptance passed

Refresh, stale tabs, double submission, cancellation, runner loss, and recovery were exercised against one live Arc.

Crucible passed Milestone 2

The final review found no blocking contradiction and authorized milestone closure.

What shipped

products/alloy/runner/providers/claude-cli.ts now supports explicit opaque-session resume and verified process-tree cancellation.

products/alloy/lib/db/schema.ts and products/alloy/lib/db/queries.ts provide durable Arc conduct fences, provider bindings, commands, attempts, leases, lineage, and terminal arbitration.

products/alloy/runner/index.ts claims target-scoped commands under generation/token fencing and streams attempt-owned evidence while retaining cancellation control.

products/alloy/components/LiveArcPanel.tsx and products/alloy/app/forge/page.tsx expose truthful state-derived conduct, execution history, stale-tab errors, and explicit recovery.

products/alloy/scripts/prove-runner-control.ts, products/alloy/scripts/prove-runner-lease-arbitration.ts, products/alloy/scripts/prove-real-runner-conduct.ts, and products/alloy/scripts/prove-forge-conduct.ts preserve hostile-path proofs.

products/alloy/docs/milestone-2-browser-acceptance.md records the authenticated five-turn acceptance Arc and final Crucible PASS.

“Alloy lost trustworthy control. This does not prove Claude stopped or made no later changes.”
— Forge interruption state, authenticated Ticket 5 acceptance