[rig-summarizer] Daily file summary — 2026-08-16

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Global Summary

Rig is a minimal TypeScript multi-agent harness providing declarative agent construction with typed input/output schemas, prompt intents, and pluggable engine backends (Copilot, Anthropic, Codex, Gemini, Pi). The core runtime lives in skills/rig/rig.ts; engine adapters are in skills/rig/engines/; vitest-based unit and sample tests cover agent definition, invocation, validation, and launcher CLI behaviour.

Individual File Summaries

File	Summary
./scripts/haiku.integration.test.ts	Integration test that spawns a real Copilot Haiku session to verify end-to-end agent invocation and output parsing.
./scripts/run-sample.test.ts	Vitest test runner for all sample agents; stubs the Copilot SDK and synthesises shape-conforming output from each agent's <output_schema> block.
./skills/rig/engines/anthropic.ts	Anthropic engine adapter wrapping the @anthropic-ai/sdk client to expose an AgentFactory-compatible interface for rig agents.
./skills/rig/engines/codex.ts	Codex engine adapter wrapping @openai/codex-sdk threads to provide an AgentFactory for rig agents.
./skills/rig/engines/gemini.ts	Gemini engine adapter that spawns a child Copilot CLI process over stdio and bridges it into the rig AgentFactory interface.
./skills/rig/engines/pi.ts	Pi engine adapter wrapping @earendil-works/pi-agent-core to provide an alternative AgentFactory backend.
./skills/rig/engines/utils.ts	Shared utility helpers (tool schema conversion, debug logging) used by multiple engine adapters.
./skills/rig/globals.ts	Module-level ambient workflow context helpers (call, pipeline, parallel) imported from "rig/globals".
./skills/rig/rig.ts	Core runtime: exports agent, workflow, schema helpers (s.*), prompt intents (p.*), engine factories, and the launcher CLI entry point.
./src/engines/anthropic.test.ts	Unit tests for the Anthropic engine adapter, verifying session creation, prompt forwarding, and cleanup.
./src/engines/codex.test.ts	Unit tests for the Codex engine adapter covering thread lifecycle and response parsing.
./src/engines/copilot.test.ts	Unit tests for the Copilot engine factory, covering URI resolution, multi-provider config, and connection-token handling.
./src/engines/gemini.test.ts	Unit tests for the Gemini engine adapter verifying stdio transport and session teardown.
./src/engines/pi.test.ts	Unit tests for the Pi engine adapter checking tool registration and message routing.
./src/launcher-default-engine.test.ts	Tests for the launcher's default engine selection logic across different environment-variable combinations.
./src/launcher.fixture.ts	Shared test fixture that loads the launcher module and tracks how many times it has been imported.
./src/launcher.stdin-ambient.fixture.ts	Fixture demonstrating the ambient workflow context pattern with phase and log helpers consumed from stdin.
./src/launcher.stdin-default-prompt.fixture.ts	Fixture providing a default PromptBuilder export read from stdin to test the launcher's string-mode code path.
./src/launcher.stdin-default-string.fixture.ts	Fixture exporting a plain string default to exercise the launcher's string-passthrough output path.
./src/launcher.stdin-json.fixture.ts	Fixture exporting an agent with structured JSON input to test the launcher's JSON stdin coercion logic.

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• expires on Aug 23, 2026, 5:00 AM UTC