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docs(delegation): subagent fan-out is capped at 20 since Claude Code 2.1.217 #1569

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docs(delegation): subagent fan-out is capped at 20 since Claude Code 2.1.217 #1569

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4 changes: 3 additions & 1 deletion LifeOS/install/LIFEOS/DOCUMENTATION/Delegation/DelegationSystem.md
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Expand Up @@ -64,7 +64,9 @@ Agent({ prompt: "System design / distributed systems. Design the distributed cac
Use the Agents skill to compose task-specific agents with unique traits, voices, and expertise:
- Use a SINGLE message with MULTIPLE Agent tool calls
- Each agent gets FULL CONTEXT and DETAILED INSTRUCTIONS via ComposeAgent prompt
- Launch as many as needed (no artificial limit)
- Launch as many as the work needs, but design around two runtime ceilings (Claude Code 2.1.217+):
- **Concurrency caps at 20 running subagents.** Excess spawns are denied, not queued — a fan-out wider than 20 silently loses the overflow unless `CLAUDE_CODE_MAX_CONCURRENT_SUBAGENTS` is raised in `settings.json`.
- **Subagents cannot spawn subagents by default.** Nested delegation is off; raise `CLAUDE_CODE_MAX_SUBAGENT_SPAWN_DEPTH` if a pattern genuinely needs a second tier.
- **ALWAYS launch a spotcheck agent after parallel work completes**

**Agent routing by task type:**
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