[rig-summarizer] Daily file summary — 2026-08-29

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Global Summary

Rig is a minimal TypeScript multi-agent harness that provides typed input/output schemas, prompt intents, sub-agent delegation, and workflow orchestration. The repository contains the core runtime (skills/rig/rig.ts), engine adapters for Anthropic, Codex, Gemini, and Pi, ambient workflow globals, 50+ sample agents, and a full vitest test suite.

Individual File Summaries

File	Summary
.agents/skills/rig/engines/anthropic.ts	Implements the Anthropic engine adapter using @anthropic-ai/sdk, translating Rig agent options and tools into Anthropic API calls.
.agents/skills/rig/engines/codex.ts	Implements the Codex engine adapter using @openai/codex-sdk, providing an AgentFactory for running rig agents against the Codex model.
.agents/skills/rig/engines/gemini.ts	Implements the Gemini engine adapter by spawning a subprocess and communicating over stdio with cryptographic session IDs.
.agents/skills/rig/engines/pi.ts	Implements the Pi engine adapter using @earendil-works/pi-agent-core, bridging Pi tools and model configuration into the Rig AgentFactory interface.
.agents/skills/rig/engines/utils.ts	Provides a shared utility (objectToolSchema) for converting Rig Tool definitions into JSON Schema objects expected by engine adapters.
.agents/skills/rig/globals.ts	Exports ambient workflow-context helpers (call, pipeline, parallel) that delegate to the currently active workflow without requiring explicit context threading.
.agents/skills/rig/rig.ts	Mirror of the main core runtime used by the .agents overlay; contains the full Rig harness including schema helpers, prompt intents, agent/workflow definitions, and the Copilot engine.
scripts/haiku.integration.test.ts	Integration test that spawns a subprocess to run a sample rig program against the real Anthropic Haiku model and asserts on output shape.
scripts/run-sample.test.ts	Stub-mode sample runner that exercises each numbered sample using a synthetic Copilot SDK client, validating output schema conformance without real API calls.
skills/rig/engines/anthropic.ts	Canonical Anthropic engine adapter (same content as .agents mirror) used by the main skills/rig package.
skills/rig/engines/codex.ts	Canonical Codex engine adapter for the main skills/rig package.
skills/rig/engines/gemini.ts	Canonical Gemini engine adapter for the main skills/rig package.
skills/rig/engines/pi.ts	Canonical Pi engine adapter for the main skills/rig package.
skills/rig/engines/utils.ts	Canonical objectToolSchema utility shared across engine adapters.
skills/rig/globals.ts	Canonical ambient workflow globals export for consumer programs.
skills/rig/rig.ts	The primary Rig core runtime: defines agent, workflow, s.* schema helpers, p.* prompt intents, copilotEngine, repair/steering/timeout addons, and the CLI launcher.
src/engines/anthropic.test.ts	Vitest unit tests for the Anthropic engine adapter, using vi.mock to stub the SDK and asserting correct tool schema translation and message handling.
src/engines/codex.test.ts	Vitest unit tests for the Codex engine adapter, verifying AgentFactory construction and message-passing behaviour under the stub SDK.
src/engines/copilot.test.ts	Vitest unit tests for the Copilot engine, covering session creation, approveAll wiring, and turn-based response handling.
src/engines/gemini.test.ts	Vitest unit tests for the Gemini engine adapter, testing subprocess spawn, stdio communication, and error propagation.

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• expires on Sep 5, 2026, 4:45 AM UTC