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# Conflicts: # .agents/notes/implemented/feature/2026-06-30-interception-seams.md # docs/config-catalog.md # docs/cookbook/adding-a-tool.i18n.yaml # docs/cookbook/adding-a-tool.md # docs/cookbook/adding-a-tool.zh.md # docs/cordis-catalog/events.md # docs/cordis-catalog/services.md # docs/core-data-structures/tools.md # docs/event-producer-consumer.md # docs/persistence-catalog.md # examples/acp-agent/tests/snapshots/cordis-inspect-jsdoc/session.jsonl # examples/acp-agent/tests/snapshots/cordis-inspect-jsdoc/stdout.expected.jsonl # packages/bash/tool-bash/src/index.ts # packages/core/agent-loop/src/tool-calls.ts # packages/core/agent-loop/tests/cancel.spec.ts # packages/core/agent-loop/tests/contract-regressions.spec.ts # packages/core/agent-loop/tests/tool-calls.spec.ts # packages/core/tools/README.md # packages/core/tools/src/index.ts # packages/core/tools/tests/code-mode.spec.ts # packages/core/tools/tests/tools.spec.ts # packages/fs/tool-fs-search/tests/integration.spec.ts # packages/fs/tool-fs-search/tests/tools.spec.ts # packages/fs/tool-fs/tests/integration.spec.ts # packages/mcp/mcp-client/src/tools.ts # packages/timeout/timeout-policy/tests/timeout-policy.spec.ts # packages/web/tool-web/tests/integration.spec.ts # packages/web/tool-web/tests/tool-web.spec.ts
workflow/ — dynamic-workflow capability family
The workflow seam: a model-written JavaScript orchestration script that fans out subagents at scale (phases, structured per-agent results, concurrency caps), modeled on Claude Code's dynamic workflows. A capability seam (see capability seams) in the bash shape: ONE engine implementation per context registers as ctx.workflows; the model-facing tool consumes it.
| Package | Role | ctx key |
|---|---|---|
workflow/ |
Abstract workflow seam: service base class + run vocabulary + workflow/* events |
ctx.workflows |
workflow-workerthread/ |
node:worker_threads engine: one worker per run; the script's vm context lives inside the worker, agent() bridges to ctx.subagents over the message port |
(provides ctx.workflows) |
tool-workflow/ |
Model-facing workflow tool over ctx.workflows |
(registers on ctx.tools) |
tool-ralph/ |
Fixed fresh-agent Ralph policy over ctx.workflows and a fresh structured-output subagent provider |
(registers on ctx.tools) |
The interface lives at workflow/workflow/. The engine's agent() hook rides the subagent seam (any registered provider; the shipped examples use spawn), and agent({ schema }) rides the structured-output support the in-process backends implement. The worker thread isolates the SCRIPT — the host never blocks on it, and a cancelled run's post-grace termination is real — but it is NOT a security boundary; an isolated-vm/separate-process engine (actual sandboxing) swaps in behind the same interface if that ever matters.
The general script engine's decisions and deferred work live in the dynamic-workflows Agent Note. The separate Ralph consumer fixes the script and fresh-provider policy rather than adding another engine or an agent-loop mode.