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feat(engine): Epic B — workspace eviction recovery#77

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feat/eviction-recovery

Apr 19, 2026

Commits on Apr 18, 2026

docs: add Epic B workspace eviction recovery design spec

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docs: add Epic B workspace eviction recovery implementation plan

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feat(engine): add stranded/abandoned lifecycle columns to workspaces

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fix(engine): make 016 idempotent-safe (IF NOT EXISTS)
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feat(engine): ChangesetState::is_terminal
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feat(engine): persist changeset_id on session_workspaces (Epic B bridge)

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feat(engine): WorkspaceManager::should_pin guards non-terminal changesets

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feat(engine): strand() method + StrandReason enum

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feat(engine): inject ClaimTracker + EventPublisher into WorkspaceManager

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feat(engine): pin non-terminal workspaces during GC + cleanup_disconnected

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feat(engine): startup_reconcile strands orphaned non-terminal workspaces

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feat(engine): FileOverlay::drop_for_workspace
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feat(engine): abandon_stranded with tombstone + changeset rejection

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feat(engine): sweep_stranded auto-abandons past 4h TTL

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feat(engine): WorkspaceManager::resume (overlay rehydrate; lock re-acquire stubbed for Task 11)

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fix(engine): drop invalid superseded_by FK (stores session_id, not PK)
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feat(engine): reindex_from_overlay + graph-based lock re-acquire in resume

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feat(proto): add Abandon RPC + stranded/contended/abandoned error details

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feat(protocol): require_live_session middleware surfaces STRANDED/ABANDONED

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feat(protocol): hoist require_live_session into all RPC handlers

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feat(protocol): handle_abandon RPC (owner-authorized; admin branch in Task 19)

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feat(protocol): connect resumes stranded workspaces via WorkspaceManager::resume

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feat(mcp): dk_abandon tool + dk_connect resume_session_id

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feat(server): run startup_reconcile + spawn GC loop before accepting RPCs

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feat(cli): dk admin abandon + admin-JWT branch in handle_abandon

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feat(metrics): workspace pinned/stranded/resumed/abandoned counters + active gauge

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chore(engine): raise idle_ttl 30m→60m and align stranded_ttl to 4h (spec §Policy #6)
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test(engine): DKOD_PIN_NONTERMINAL=0 strands non-terminals on expiry
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feat(engine): reindex_from_overlay + graph-based lock re-acquire in resume

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fix: address round-2 CodeRabbit review findings (security + correctness)

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fix(engine): import ClaimTracker trait in eviction_recovery_test
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fix(engine): drop_for_workspace test inserts parent rows before overlay FK

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fix(engine): GC runtime-flavor guard + always report stranded sessions in evicted vec
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fix(engine): round-3 CodeRabbit — fail-closed pin, stranded gate, terminal SQL, resume redirects
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fix: round-4 CodeRabbit full-review findings

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Commits on Apr 18, 2026

Commits on Apr 19, 2026