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# Conflicts: # docs/architecture.md # docs/capability-seams.md # docs/config-catalog.md # docs/cookbook/extension-cookbook.md # docs/cordis-catalog/events.md # docs/cordis-catalog/services.md # docs/event-producer-consumer.md # docs/module-graph.md # docs/rfc/implemented/feature/2026-06-30-interception-seams.md # docs/rfc/proposed/feature/2026-06-14-acp-agent-client-protocol.md # docs/tool-execution-pipeline.md # packages/cordis/tool-cordis/src/api-catalog.ts # packages/core/agent-core/README.md # packages/core/agent-loop/README.md # packages/core/tools/README.md # packages/core/tools/src/index.ts # packages/core/tools/tests/tools.spec.ts # packages/core/tools/tsconfig.json # packages/ui/acp/src/index.ts # scripts/doc-budgets.manifest.json # scripts/gen-cordis-catalog.ts # scripts/gen-doc-graphs.ts
20 lines
2.2 KiB
Markdown
20 lines
2.2 KiB
Markdown
# core/ — product API spine
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The session log, system-prompt assembly, tool registry, agent vocabulary, and concrete loop that form the harness's default control spine. These are **product** packages — the stable surface plugins and consumers build against.
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| Package | Role | ctx key |
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| `scope/` | Scoped-context registration primitive (scope tags, scope-filtered dispatch) | (library — no ctx key) |
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| `session/` | Event-sourced session log + in-memory store | `ctx.sessions` |
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| `system-prompt/` | Prompt-section + tool-schema assembly registry | `ctx.systemPrompt` |
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| `tools/` | Scoped tool registry + pre-policy, guards, around-dispatch, post-policy, and final-result observation | `ctx.tools` |
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| `agent/` | Agent interface, registry, `agent/*` event vocabulary | `ctx.agents` |
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| `agent-loop/` | The concrete loop plugin: `ReactLoopAgent` + the loop driver | `ctx.agentLoop` |
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| `agent-core/` | Bundle plugin: the default executor-less/UI-less spine as code | (loads the spine) |
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`scope/` is the one non-service package here: a dependency-free library (`createScope`/`scopeOf`/`scopeTarget`) the registries and the loop build per-agent scoping on — it sits below `session/` and `system-prompt/` in the module graph precisely so they can consume it without a cycle.
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`agent-loop` is the one concrete implementation of the `agent` seam and lives here because it is the harness's default product loop; everything else in `core/` is interface/vocabulary. Plugins depend on the `agent` vocabulary, never on `agent-loop` directly, so the loop stays swappable.
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`agent-core` is the composition counterpart: one bundle plugin that loads the control spine plus selected default capabilities (`timer` + `llm` + sessions + system-prompt + tools + agents + invariants + the local [skill family](../skill/README.md) + `tool-bash` + `agent-loop`) and forwards `agent-loop`'s `agents` list as its own config. App packages (`ui/stdio-agent`, `ui/acp-agent`) consume it and add only a front door; a leaf adds the swappable backends plus any optional product tools it wants to expose. It lives in `core/` because it composes the shared control spine while leaving executors, LLM adapters, alternate skill providers, and UI front doors outside the bundle.
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