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Capability Mock ControlPlanePort

CapabilityMockControlPlaneAdapter is a deterministic, serializable, in-memory model of Paperclip's control-plane semantics — not its transport. It imports no server route, service, database, or provider binding, and it holds no credential.

Sources: src/mock-core/capability-mock-control-plane-adapter.ts, src/mock-core/capability-control-plane-types.ts. Shared contract: src/conformance/control-plane-port.ts.

Entity domains

The adapter models ten renderable entity domains, which are exactly the domains the scenario explorer diffs:

tasks, comments, documents, interactions, approvals, artifacts (artifacts and work products), blockers, workspace (workspace services), budget, and run.

The fixture state also carries supporting records — company, actors, wakes, audit, decisions, idempotency, faults, counters, and a fixture clock — that back behavior but are not diff domains.

Operations

Lifecycle: start() / stop() only change local object state.
Runs: openRun() / openFixtureRun() return a run context with atomic checkout; context(runId) reads it back.
Events: appendEvent() accepts both canonical PRP events and native run events with deduplication, replay-conflict detection, and contiguous-sequence tracking; replayEvents() replays from an exclusive cursor.
Commands: applyCommand(envelope) executes a semantic command with idempotency and an optimistic expectedRevision.
Sessions: loadSessionCheckpoint() / checkpointSession().
Terminal: completeRun() reconciles a terminal disposition — done, blocked, needs_review, or yielded — and fans out blocker wakes.
Introspection: snapshot(), decisionRecords(), serialize(), and static restore().

The eighteen semantic command kinds (report_progress, write_document, request_human_input, resolve_human_input, register_deliverable, set_dependencies, create_task, request_approval, decide_approval, comment_on_approval, control_workspace_service, record_budget_usage, finish_task, block_task, request_review, release_task, schedule_wake) are the mock side of the semantic tool catalog.

Determinism

Fixture clock. Every timestamp derives from clock.epochMs + tick*1000 and the tick increments on each read. The default epoch is 2026-08-09T00:00:00Z. There is no RNG anywhere.
Deterministic IDs. Every generated ID is fixture-<kind>-<nnnn> from a monotonic per-kind counter.
Immutability. Inputs and outputs are structuredCloned and every returned value is deep-frozen. Canonical JSON with sorted keys backs every dedupe and replay comparison.
Serializable. serialize() / restore() round-trip under the schema tag paperclip.capability.mock-state.v1.
Scripted faults. A fault rule injects a bounded number of retryable_error or lost_ack effects; a lost-ack command commits once and returns its stored result on retry.

Boundary

The adapter is a pure state machine: no network, no database, no provider SDK, no credentials. Secrets appearing in wake payloads are redacted against /authorization|credential|api.?key|secret|token/i; the adapter test seeds apiKey and Bearer values and asserts they never surface. See authorization and exposure.

Shared conformance

The adapter satisfies the same runControlPlanePortConformance contract used by earlier phases: it rejects open-binding violations, recovers from source gaps, treats duplicates idempotently, and rejects event-id, sequence, replay-binding, and result mutations (failing closed with native_event_replay_conflict).

Running the tests

pnpm --filter @paperclipai/paperclip-runner exec vitest run \
  src/conformance/control-plane-port.test.ts \
  src/mock-core/capability-mock-control-plane-adapter.test.ts

Nine tests, no npm alias of their own — they also run inside pnpm --filter @paperclipai/paperclip-runner test.

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