e13856eb37
## Thinking Path > - Paperclip Runner now has a complete guarded Codex vertical slice. > - The next provider series must not start by importing a provider implementation or dependency bundle. > - ACPX needs one bounded, versioned process boundary shared by TypeScript and Rust. > - A schema is the authority; checked-in generated inventories keep both languages in lockstep. > - Unknown versions, commands, event types, and properties must fail closed. > - This pull request therefore lands only the sidecar wire contract and its drift gate. > - No ACPX runtime, dependency, executable, package export, or production selection is added. ## Linked Issues or Issue Description This is the first package-local unit in the post-Codex provider series. **What happened?** The integration branch contains an ACPX provider, but its TypeScript sidecar and Rust client need a small shared authority before either implementation can be reviewed safely. Importing the final integration implementation directly would mix the protocol, runtime, third-party dependencies, and production wiring. **Expected behavior** The schema defines every ACPX sidecar request, response, event, command, event type, and protocol version. Generated TypeScript and Rust inventories must drift-check against that schema. No runtime can select or execute ACPX yet. **Steps to reproduce** 1. Change the protocol version, command inventory, or event inventory in the schema. 2. Run the runner protocol type check without regenerating the language inventories. 3. Observe the drift gate fail. **Paperclip version or commit** Stacked on `runner-server-semantic-codex` at `ebd7f9df7`. ## What Changed - Add the internal ACPX sidecar v2 JSON Schema outside the public PRP v1 schema catalog. - Generate one TypeScript inventory and one Rust inventory from that schema. - Add generate and check hooks to the existing runner protocol-type workflow. - Add fail-closed AJV tests for all three message families, version drift, unknown commands, and extra properties. - Keep the generated Rust module unregistered until the Rust ACPX transport exists. ## Compatibility Boundary - Codex remains the only production runner provider. - `paperclip_runner` selection and the default-off rollout flag are unchanged. - No ACPX package, patch, lockfile, binary entry point, root export, server file, UI file, workflow, or dependency is added. - The schema is shipped with the existing `protocol` directory but is not added to the public PRP manifest. - Existing direct adapters continue through their current paths. - Diff against the actual stacked base: 6 files. ## Verification - Runner TypeScript typecheck and both generated-contract drift gates — passed. - Runner TypeScript tests — 37 files and 355 Vitest tests passed; 11 Node contract tests passed. - Rust provider-bridge regression suite after restacking — 14/14 passed. - `pnpm -r typecheck` — passed for all applicable workspaces. - `pnpm build` — passed, including runner binary, server, UI, and workspace packages. - `pnpm test:run` — attempted; the local host reproduced unrelated workspace/Postgres and port-exposure failures in unchanged server suites. The changed runner contract suites pass, and the repository's serialized/sharded GitHub checks remain authoritative for those host-sensitive suites. - Prettier, rustfmt, generated-source drift checks, and `git diff --check` — passed. - `pnpm-lock.yaml` is unchanged. ## Risks The main risk is allowing schema and generated language inventories to diverge. Build and typecheck now fail on any drift. The sidecar implementation and third-party ACPX packages are deliberately absent, so this PR cannot alter runtime behavior or expand the production attack surface. ## Model Used OpenAI Codex with GPT-5 and repository tool use. ## Checklist - [x] I have included a thinking path that traces from project context to this change - [x] I have specified the model used (with version and capability details) - [x] I have checked ROADMAP.md and confirmed this PR does not duplicate planned core work - [x] I have searched GitHub for duplicate or related PRs - [x] I have described the issue and expected behavior in this PR - [x] I have not referenced internal or instance-local Paperclip issues or links - [x] My branch name describes the change and contains no internal task identifier - [x] I have run the affected tests locally and they pass - [x] I have added or updated tests where applicable - [x] I have documented the compatibility and security boundary - [ ] All applicable GitHub Actions are green - [ ] Greptile is 5/5 with every actionable comment resolved - [x] I will address all review findings before requesting merge |
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| schemas | ||
| README.md | ||
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README.md
PRP v1 Contract
The JSON Schema files in schemas/ are the language-neutral source of truth for
Paperclip Runner Protocol version 1. The fixtures in fixtures/ define accepted
and rejected compatibility cases.
Compatibility
protocolVersion,fixtureVersion, andevent.schemaVersionare required.- A consumer fails closed when a required version or schema discriminator is not supported.
- A v1 envelope can contain an unknown optional property when its schema marks that object as extensible.
- A consumer ignores an unknown optional property until a later contract gives it meaning.
- A required field, enum value, or typed structured-input field is not optional.
- Question and answer identifiers are stable across the provider boundary.
The unknown-optional-fields.json fixture must be accepted. The
unsupported-required-version.json fixture must be rejected.
Scope
The first provider descriptor and adapter fixture cover Codex only. The schemas for provider-neutral events and semantic receipts do not enable those actions. Discovery and authorization are separate contracts.
The conformance manifest records every source file and its SHA-256 digest. Run
pnpm generate:protocol-manifest from this package after a source change. CI
runs the same generator with --check to reject drift. This check also compiles
the JSON Schemas and validates every replay, question, and cross-language
conformance fixture against its declared schema.
The files in fixtures/replay/golden/ are deterministic reducer oracles. Each
accepted replay fixture has a complete session snapshot and a compact parity
summary. pnpm generate:replay-goldens updates them after an intentional
reducer change; package build and CI fail when they drift.
The files in fixtures/local-runner/scripts/ drive the package-local fake
harness. They cover successful, failed, interrupted, interactive, duplicate
terminal, process-cleanup, and oversized-frame behavior without starting a
production adapter.