[rig-summarizer] Daily file summary — 2026-08-19

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Global Summary

Rig is a minimal TypeScript multi-agent harness providing declarative agent construction with typed schemas, prompt intents, sub-agent delegation, and multi-engine runtime support (Copilot, Anthropic, Codex, Gemini, Pi). The codebase is organized into a core runtime (skills/rig/rig.ts), pluggable engine adapters, a globals module for ambient workflow helpers, sample programs, and a comprehensive vitest test suite.

Individual File Summaries

File	Summary
.agents/skills/rig/engines/anthropic.ts	Anthropic engine adapter integrating the @anthropic-ai/sdk to drive rig agents via Claude models with tool-use support.
.agents/skills/rig/engines/codex.ts	Codex engine adapter integrating @openai/codex-sdk to run rig agents through OpenAI Codex threads.
.agents/skills/rig/engines/gemini.ts	Gemini engine adapter that spawns a child process and uses node:crypto UUIDs to interface with Google Gemini models.
.agents/skills/rig/engines/pi.ts	Pi engine adapter bridging @earendil-works/pi-agent-core and @earendil-works/pi-ai providers to the rig agent interface.
.agents/skills/rig/engines/utils.ts	Shared utility converting a rig Tool definition into an object-typed JSON Schema for use across engine adapters.
.agents/skills/rig/globals.ts	Ambient workflow context helpers exporting call, pipeline, and parallel as module-level functions that delegate to the active workflow context.
.agents/skills/rig/rig.ts	Mirror/snapshot of the core rig runtime under .agents/, identical in purpose to skills/rig/rig.ts.
scripts/haiku.integration.test.ts	Integration test that spawns rig as a child process to verify end-to-end behavior with the Anthropic Haiku model.
scripts/run-sample.test.ts	Vitest-based stub runner that imports rig sample programs and validates them against shape-conforming synthesized output from a mocked Copilot SDK.
skills/rig/engines/anthropic.ts	Anthropic engine adapter (source copy) integrating @anthropic-ai/sdk with beta tool-use for running rig agents on Claude.
skills/rig/engines/codex.ts	Codex engine adapter (source copy) connecting rig agents to OpenAI Codex threads via @openai/codex-sdk.
skills/rig/engines/gemini.ts	Gemini engine adapter (source copy) spawning a subprocess to communicate with Google Gemini models.
skills/rig/engines/pi.ts	Pi engine adapter (source copy) wrapping @earendil-works/pi-agent-core and @earendil-works/pi-ai for rig integration.
skills/rig/engines/utils.ts	Shared utility (source copy) that converts rig Tool types to JSON Schema objects for engine adapters.
skills/rig/globals.ts	Ambient workflow helpers (source copy) providing call, pipeline, and parallel as importable module-level functions.
skills/rig/rig.ts	Core rig runtime: typed agent construction, schema helpers (s.*), prompt intents (p.*), Copilot SDK engine, sub-agent delegation, repair, and CLI launcher.
src/engines/anthropic.test.ts	Vitest unit tests for the Anthropic engine adapter, mocking the SDK client and verifying tool-runner invocations.
src/engines/codex.test.ts	Vitest unit tests for the Codex engine adapter, mocking thread/run lifecycle and asserting correct agent behavior.
src/engines/copilot.test.ts	Vitest unit tests for the Copilot engine adapter, mocking the @github/copilot-sdk client and session interactions.
src/rig.test.ts	Core unit tests covering agent definition, schema validation, prompt intent resolution, and invocation via mocked Copilot SDK.

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• expires on Aug 26, 2026, 4:55 AM UTC

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