Improve coordinator delegation — reduce 'takeover' behavior

[bradygaster]

Summary

Users report that the Copilot coordinator sometimes 'takes over' and does work directly instead of delegating to squad agents. Improve delegation behavior so the coordinator consistently routes to agents.

Origin: Discussion #161 by @jamescarter-le

Symptoms

• Coordinator generates code directly instead of spawning agents
• Agent responses get overwritten by coordinator
• Users need workarounds like 'team fan out' to force delegation

Proposed Improvements

• Stronger routing heuristics in squad.agent.md
• Better prompt cues that reinforce delegation
• CLI mode improvements that give users more direct control over agent routing
• Consider a 'strict delegation' mode that prevents coordinator from generating domain artifacts

Related

• CLI-First architecture (RFC: CLI-First Architecture — Migrate Squad Automation from GitHub Actions to CLI Commands #252) — dedicated CLI reduces coordinator interference
• Skill-based orchestration (Skill-based orchestration — decompose squad.agent.md into pluggable skills #255) — clearer capability boundaries

[github-actions]

📋 Assigned to Keaton (Lead)

Issue: #257 — Improve coordinator delegation — reduce 'takeover' behavior

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Keaton, work on issue #257