Architecture invariants

• Fan-out, not serial. Triage, solution-pipeline (and its Plan lenses + per-wave task children), and shepherd-driver all run as parallel child threads via the runtime task affordance. A single-loop variant is an anti-pattern. Subagent capacity is UNLIMITED and is NEVER a deferral reason.
• Worktree isolation, with one-writer integration. Every solution- pipeline and shepherd-driver child runs in its OWN git worktree (one per issue/PR). Within Phase 4, a pipeline child further spawns ONE task child per task PER WAVE, each in its OWN worktree branched off the issue branch at the wave base; the pipeline child is the SOLE WRITER of the issue branch and integrates task branches via git merge --no-ff at the wave gate. Tasks in a wave are mutually independent and touch disjoint files by construction (planner- enforced), so integration is conflict-free -- a real conflict is a planning error and triggers a re-plan, never a hand-resolve. Do NOT fan out against one shared working tree. Triage and verifier/lens children are read-only and may share a read-only REPO_ROOT.
• One persisted state table. A single plan.md ground-truth table plus a machine-readable proceed_manifest is the canonical session state (B4 PLAN MEMENTO). Reload it at every phase boundary; never keep parallel state in memory. The orchestrator is the SOLE writer (one-writer rule); children return JSON, the parent writes rows.
• Escalate by default. The confidence gate (assets/confidence-gate-rubric.md)

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cli-logging-ux

优化 APM 代码库中的 CLI 输出、日志提示与诊断信息体验

apm-triage-panel

帮助团队为 microsoft/apm 新问题完成分诊并生成统一处理意见。