feat: add help component and describe operation for component discovery#28
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feat: add help component and describe operation for component discovery#28
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Add orcs-acp crate implementing the ACP Agent trait from agent-client-protocol v0.9. Enables ORCS to run as an ACP-compatible agent over stdio, registerable in ACP-aware editors (Zed, JetBrains). P1 implementation: initialize, authenticate, new_session, prompt, cancel handlers with echo response. Engine integration planned for P2. CLI: `orcs --acp` starts the ACP server mode.
Replace echo-based engine_worker with real ORCS engine integration. The ACP server now sends user prompts through IOInputHandle and streams engine output back as ACP SessionUpdate notifications, using the same idle-timeout pattern as run_command().
Add @help builtin component that provides runtime introspection: - @help list: shows all @-routable components and dynamic agents - @help <name>: shows detail (description, operations, usage) for a component Each builtin component now implements a "describe" operation returning structured metadata. agent_mgr gains list_routes and resolve_route operations to support help's queries.
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Domain breakdown
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Summary
@helpbuiltin component for runtime component introspection (@help list,@help <name>)describeoperation to all builtin components (shell, tool, agent_mgr, foundation_manager, profile_manager) returning structured metadata (id, fqn, description, operations, usage)list_routesandresolve_routeoperations to agent_mgr to support help queriesdescriptionfield to agent_mgr route table entrieshelpin default builtins config (types.rs)Design
@helpworks entirely through the existing component request/response mechanism:@help list→ requestslist_routesfromagent_mgr→ formats and outputs all @-routable components and dynamic agents@help <name>→ requestsresolve_routefromagent_mgrto get target FQN → requestsdescribefrom the target component → formats and outputs detailNo new Rust code or runtime changes required — built purely on the Lua component layer.
Test plan
@helpshows usage message@help listlists all registered routes and agents with descriptions@help shellshows shell component detail (description, operations, usage)@help toolshows tool component detail@help foundationshows foundation_manager detail@help profileshows profile_manager detail@help helpshows self-describe metadata@help nonexistentreturns appropriate error message@shell,@tool,@profile,@foundationrouting unaffected