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feat: activate coordinator mode in open build (#647)

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* feat: activate coordinator mode in open build

Enable the COORDINATOR_MODE feature flag and create the missing
src/coordinator/workerAgent.ts module that provides worker agent
definitions for the coordinator.

Coordinator mode is a multi-agent system where a coordinator agent
orchestrates independent workers via AgentTool, SendMessageTool,
and TaskStopTool. The implementation was already 99% complete
(19KB coordinatorMode.ts, 26 gate sites across 15 files) — only
the workerAgent module was missing from the source snapshot.

Workers get the standard built-in agents (general-purpose, explore,
plan). The coordinator system prompt (252 lines) handles all
orchestration logic.

Activate at runtime: CLAUDE_CODE_COORDINATOR_MODE=1
Optional scratchpad: set {"tengu_scratch": true} in
~/.claude/feature-flags.json (#639)

* fix: add worker agent type for coordinator mode

The coordinator system prompt instructs the model to spawn workers with
subagent_type: "worker", but no agent had agentType === 'worker'.
This caused AgentTool to throw "Agent type 'worker' not found" on
every coordinator spawn attempt.

Add a WORKER_AGENT definition that spreads GENERAL_PURPOSE_AGENT with
agentType: 'worker'. Also use the narrower BuiltInAgentDefinition type.

* feat: activate built-in explore and plan agents in open build

Enable BUILTIN_EXPLORE_PLAN_AGENTS so Explore (fast, haiku, read-only)
and Plan (architect, read-only) agents are available to all users in
both normal and coordinator modes.

This resolves the inconsistency flagged in code review: coordinator
workers had access to Explore/Plan agents while normal sessions did not.

The GrowthBook A/B test gate (tengu_amber_stoat) defaults to true via
the no-telemetry stub. Users can disable via feature-flags.json (#639).
This commit is contained in:
Nourrisse Florian
2026-04-13 15:19:57 +02:00
committed by GitHub
parent df2b9f2b7b
commit 99a17144ee
2 changed files with 20 additions and 1 deletions
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18
src/coordinator/workerAgent.ts Normal file
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import type { BuiltInAgentDefinition } from '../tools/AgentTool/loadAgentsDir.js'
import { EXPLORE_AGENT } from '../tools/AgentTool/built-in/exploreAgent.js'
import { GENERAL_PURPOSE_AGENT } from '../tools/AgentTool/built-in/generalPurposeAgent.js'
import { PLAN_AGENT } from '../tools/AgentTool/built-in/planAgent.js'
// The coordinator system prompt instructs the model to spawn workers with
// subagent_type: "worker". This agent definition matches that type so
// AgentTool.tsx can resolve it. It reuses GENERAL_PURPOSE_AGENT's capabilities.
const WORKER_AGENT: BuiltInAgentDefinition = {
...GENERAL_PURPOSE_AGENT,
agentType: 'worker',
whenToUse:
'Worker agent for coordinator mode. Executes tasks autonomously — research, implementation, or verification.',
}
export function getCoordinatorAgents(): BuiltInAgentDefinition[] {
return [WORKER_AGENT, GENERAL_PURPOSE_AGENT, EXPLORE_AGENT, PLAN_AGENT]
}