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Cross-cutting rule covering subagent hygiene:
- Decision table: parallel-safe (read-only investigation, independent
test failures, multi-domain research) vs sequential-with-review
(plan execution, coupled edits) vs never-parallel (concurrent writes)
vs don't-subagent-at-all (target known, work fits in ~10 tool calls).
- Prompt contract: scope / pasted context / explicit 'do NOT' list /
required output format. Missing any field yields shallow work.
- Context-pollution rule: subagents absorb noise the main thread
shouldn't carry. When one fails, dispatch a fix-agent with the
failure report — do not retry in the orchestrator.
- Review-gate cadence: after each sequential task, or every ~3 in
parallel batches.
- Anti-patterns including parallel implementation on overlapping
files, broad 'fix all the tests' prompts, timeout-tuning to mask
flakes, and letting the agent decide scope.
Added one-line cross-references to subagents.md from debug/,
review-code/, and finish-branch/ SKILL.md — the skills that most
rely on delegation.
Clean-room synthesis from NeoLabHQ/context-engineering-kit's
subagent-driven-development pattern (MIT).
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