Fan out, collect everything, funnel before consuming. Plumbing other skills dispatch through — it owns the parallel discipline, not domain logic.
\nThe caller supplies the work. Confirm it, or STOP and surface the gap — never invent units or pick an agent on a hunch:
\nbackend-author, frontend-author, scout, security-reviewer at ${CLAUDE_PLUGIN_ROOT}/agents/<name>.md). One kind per batch.Split the work into units that do not collide. A unit owns a distinct file or path set; two units in one batch MUST NOT mutate the same path.
\nusing-git-worktrees (${CLAUDE_PLUGIN_ROOT}/skills/using-git-worktrees/SKILL.md) to give each unit an isolated working tree, or serialize the colliding units into one sequential unit. A shared-path collision in a parallel batch is a corruption, not a merge.Tag each unit with its ID, scope, target paths, and the agent kind. Read-only batches (review, scout) skip the collision check — they mutate nothing.
\nGate: every unit has a disjoint path set, or its overlap is resolved by worktree isolation or serialization. An unresolved collision does not pass.
\nDispatch one agent per unit, bounded.
\ntdd BLOCK, a commit-gate failure, a security CRITICAL, or a [CONFIRM-NN] inside any unit halts that unit and surfaces immediately; it does not get silently swallowed by the batch.Gate: every unit is dispatched or explicitly deferred. No unit is dropped silently at dispatch.
\nWait for the full wave, then the next, until every unit has terminated. Record each unit's terminal state: DONE (returned a result), ERRORED (the agent failed), or DEFERRED (a hard-stop surfaced).
An ERRORED unit drops its own work — its partial output is discarded, never half-applied — and is logged against its unit ID. One errored unit MUST NOT corrupt or discard the batch. The remaining units' results stand. Record the error for the funnel; do not retry blindly inside this phase.
Gate: every unit has a terminal state and DONE results are captured intact. A still-running or unaccounted unit blocks Phase 4 — partial collection does not pass.
Parallel agents over adjacent units produce overlapping findings — the same issue reported by two units, the same fix proposed twice. Collapse them before anything downstream sees the batch.
\nGate: the result set is deduped, contradictions surfaced, and completion claims verified by fresh evidence. Raw, un-deduped agent output MUST NOT reach Phase 5.
\nThe batch is consumed only here, through the fixed funnel — never directly by the caller.
\nfinding-triage (${CLAUDE_PLUGIN_ROOT}/agents/finding-triage.md) over the deduped result set: it classifies severity, marks out-of-scope items with an inline [NEEDS-TRIAGE] marker, and discards noise.checkpoint-aggregator (${CLAUDE_PLUGIN_ROOT}/agents/checkpoint-aggregator.md): it aggregates into the single batch verdict the caller consumes — pass, or a blocking finding list.The errored and deferred units from Phase 3 ride through the funnel as findings — an ERRORED unit is a finding the caller must see, not a silent gap.
Gate: the caller receives only the aggregated verdict. Bypassing the funnel — consuming raw or merely-deduped agent output — is a gate violation. STOP and return the verdict.
\nusing-git-worktrees or serialize.ERRORED unit discard or corrupt the rest of the batch.finding-triage → checkpoint-aggregator funnel runs.