/flow-next:pilot — single-tick autonomous build-loop conductor

A tick is one invocation of /flow-next:pilot: select one ready spec, classify its current stage (plan, plan-review, work, the opt-in qa, make-pr), dispatch exactly one existing stage skill, verify state advanced, and end with one terminal PILOT_VERDICT line. It is intentionally not a runner; /loop in Claude Code or /goal in Claude Code / Codex owns repeated invocation.

Pilot and Ralph are alternative autonomous drivers. Ralph is an external shell loop with receipt plumbing; pilot is an in-session conductor for host loop primitives. Never nest them, and never reuse Ralph harness state inside pilot.

Human judgment lives before pilot: the spec content, depends_on_epics, and the fn-58 ready gate are the consent boundary. Pilot executes the mechanical pipeline one stage at a time, with ambiguity reported as NEEDS_HUMAN.

Chart is outside the build loop (fn-135)

Chart is optional pre-capture discovery - never a pilot pipeline stage. Pilot never advances a chart tick. Optional unattended chart driving (host /loop on /flow-next:chart) stops terminally at attended decisions (CHART_VERDICT=NEEDS_HUMAN) - pilot does not absorb or continue that work. Capture, interview, and chart stay human-gated upstream of the ready consent boundary.

Preamble

CRITICAL: flowctl is BUNDLED — NOT installed globally. which flowctl will fail (expected). Define once; subsequent blocks (here and in workflow.md) use $FLOWCTL. Subagents that run in fresh context fall back to the repo-local copy:

FLOWCTL="${DROID_PLUGIN_ROOT:-${CLAUDE_PLUGIN_ROOT}}/scripts/flowctl"
[ -x "$FLOWCTL" ] || FLOWCTL="<plugin-root>/scripts/flowctl"   # <plugin-root> = the directory two levels above this skill's SKILL.md file (the harness gave you that file's absolute path when the skill loaded); substitute it literally
[ -x "$FLOWCTL" ] || FLOWCTL=".flow/bin/flowctl"

Cold session / tick start: $FLOWCTL brief first for session-scope orientation (one budgeted call).

Hard guards (before anything else)

Run these guards before selection, ledger writes, branch changes, or skill dispatch.

if [[ -n "${FLOW_RALPH:-}" || -n "${REVIEW_RECEIPT_PATH:-}" ]]; then
  echo "Ralph and pilot are alternative drivers — never nest them" >&2
  echo 'PILOT_VERDICT=NEEDS_HUMAN spec=- stage=- reason="nested under Ralph harness (FLOW_RALPH/REVIEW_RECEIPT_PATH set) — refuse to run"'
  exit 1
fi

if git status --porcelain | grep -v '^.. \.flow/' >/dev/null; then
  echo 'PILOT_VERDICT=NEEDS_HUMAN spec=- stage=- reason="dirty working tree at tick start"'
  exit 0
fi

Dirty tree means dirty outside .flow/; pilot leaves state untouched. No cleanup, no claim reset, no strike.

Mode Detection

Parse $ARGUMENTS for the scope lock, dry-run switch, and passthroughs. Unknown flags warn to stderr and are ignored. Defaults are research=grep, depth=short, and review resolved later via $FLOWCTL review-backend.

The loop handles both --flag=value and space-separated --flag value forms directly via a PREV token holder. It deliberately avoids bash positional parameters (shift-based parsing) — the host's argument interpolation rewrites positional tokens inside skill code blocks, which corrupts a case-on-positionals parse (observed live in the 1.13.0 dogfood).

RAW_ARGS="$ARGUMENTS"
PILOT_SPEC=""
PILOT_DRY_RUN=0
PILOT_REVIEW=""
PILOT_RESEARCH="grep"
PILOT_DEPTH="short"
PILOT_BACKLOG_OVERRIDE=""   # "" = use config; "1" = force backlog (--backlog/--auto)

PREV=""
for ARG in $RAW_ARGS; do
  case "$PREV" in
    --spec)     PILOT_SPEC="$ARG"; PREV=""; continue ;;
    --review)   PILOT_REVIEW="$ARG"; PREV=""; continue ;;
    --research) PILOT_RESEARCH="$ARG"; PREV=""; continue ;;
    --depth)    PILOT_DEPTH="$ARG"; PREV=""; continue ;;
  esac
  case "$ARG" in
    --spec|--review|--research|--depth) PREV="$ARG" ;;
    --spec=*)     PILOT_SPEC="${ARG#--spec=}" ;;
    --dry-run)    PILOT_DRY_RUN=1 ;;
    --backlog|--auto) PILOT_BACKLOG_OVERRIDE=1 ;;
    --review=*)   PILOT_REVIEW="${ARG#--review=}" ;;
    --research=*) PILOT_RESEARCH="${ARG#--research=}" ;;
    --depth=*)    PILOT_DEPTH="${ARG#--depth=}" ;;
    -*) echo "Unknown flag: $ARG (ignored by /flow-next:pilot)" >&2 ;;
    *)  echo "Unknown argument: $ARG (ignored by /flow-next:pilot)" >&2 ;;
  esac
done
[[ -n "$PREV" ]] && echo "Flag $PREV given without a value (ignored by /flow-next:pilot)" >&2
export PILOT_SPEC PILOT_DRY_RUN PILOT_REVIEW PILOT_RESEARCH PILOT_DEPTH PILOT_BACKLOG_OVERRIDE

No branch flag exists in v1. Branch resolution is pilot-owned from the selected spec's branch_name.

Autonomy mode resolution (R1) — gate the wide backlog behavior

Resolve PILOT_AUTONOMY once, here, so every downstream block keys off a single value. This block also captures the tick's ROOT CONFIG SNAPSHOT (fn-110) — the ONLY config get invocation across all pilot files (SKILL.md, workflow.md, references/backlog-mode.md): workflow.md's pipeline.qa probe and the pilot.gateClasses reads derive from the snapshot file via jq, never a second config call. The gate is a strict scalar string-enum — backlog mode activates only on the literal backlog (config pilot.autonomy), or when the per-run --backlog / --auto flag forced the override. Any other config value (ready, null, a coerced bool true, a typo) leaves pilot in ready mode — byte-for-byte unchanged behavior (the references/backlog-mode.md file is never even read):

# Root config snapshot: {"key":null,"value":{<merged config>}}. Persisted to a file
# because bash vars do not survive across tool calls; later fences RECOMPUTE this
# same deterministic repo-hash-keyed path and jq it. The path lives under
# ${TMPDIR} — NEVER under repo-controlled .flow/tmp (autonomous symlink safety:
# a committed symlink must not redirect this write out of tree) — so a dry-run
# tick mutates nothing inside the repo; dry-run terminals also `rm -f` this
# snapshot (workflow.md), leaving no persistent scratch state. On capture
# FAILURE remove the file —
# downstream jq reads then error, which keeps the pipeline.qa probe's fail-open
# contract (probe error ⇒ ACTIVE) intact.
PILOT_CFG_SNAPSHOT="${TMPDIR:-/tmp}/flow-pilot-config-$(git rev-parse --show-toplevel 2>/dev/null | cksum | cut -d' ' -f1).json"
rm -f "$PILOT_CFG_SNAPSHOT" 2>/dev/null   # drop any stale/planted file (incl. a symlinked leaf) before the fresh write
$FLOWCTL config get --json > "$PILOT_CFG_SNAPSHOT" 2>/dev/null \
  || rm -f "$PILOT_CFG_SNAPSHOT"
PILOT_AUTONOMY="$(jq -r '.value.pilot.autonomy' "$PILOT_CFG_SNAPSHOT" 2>/dev/null)"
if [ "$PILOT_BACKLOG_OVERRIDE" = "1" ]; then
  PILOT_AUTONOMY="backlog"                       # --backlog / --auto forces backlog this run
elif [ "$PILOT_AUTONOMY" != "backlog" ]; then
  PILOT_AUTONOMY="ready"                         # ONLY the literal `backlog` enables — never bool true / typos / null
fi
export PILOT_AUTONOMY

When PILOT_AUTONOMY=ready (the default), pilot behaves exactly as documented in workflow.md Phases 1–6 — no backlog-mode code path runs and references/backlog-mode.md is not loaded. When PILOT_AUTONOMY=backlog, read references/backlog-mode.md top to bottom, execute its backlog-only setup, then continue with workflow.md Phase 1. The reference owns the backlog-only verdict extension plus SELECT/TRIAGE/ASK context; workflow.md keeps the enforcing guards and action sites.

The verdict contract (read this before the workflow)

The /goal validator is transcript-blind: it reads conversation output only and never runs tools. Every tick therefore echoes its verification evidence into the output: flowctl status fields, task counts, task status transitions, and the gh-confirmed PR URL for make-pr.

Every tick ends with exactly one terminal line, the last line of the response, with nothing after it. The common ready-mode grammar is:

PILOT_VERDICT=<ADVANCED|NO_WORK|DEFERRED_TO_LAND|BLOCKED|NEEDS_HUMAN> spec=<id> stage=<stage> reason="<one line>"

Use spec=- and stage=- when no spec was selected. Stage values are exactly plan, plan-review, work, qa (opt-in — only when pipeline.qa==on), make-pr, land, or -.

Dry-run snapshot cleanup. Under --dry-run (PILOT_DRY_RUN=1), at EVERY terminal PILOT_VERDICT emission — the classification stop, the diagnostic TRIAGED exit, every NO_WORK / DEFERRED_TO_LAND / hard-guard exit — remove the root config snapshot BEFORE printing the verdict, so a dry-run leaves no persistent scratch state:

rm -f "${TMPDIR:-/tmp}/flow-pilot-config-$(git rev-parse --show-toplevel 2>/dev/null | cksum | cut -d' ' -f1).json"

Recompute the path exactly as above (vars die across tool calls). Live (non-dry-run) ticks keep the snapshot for the tick's remaining fences; it is overwritten fresh by the next tick's capture. Never blocks, fail-open (rm -f on a missing file is a no-op).

DEFERRED_TO_LAND is a distinct non-terminal-work verdict (stage land): every remaining all-done candidate has an open PR that land — not pilot — owns. It is deliberately separated from NO_WORK so a driver can route it to /flow-next:land instead of stopping; an all-done spec with an open PR is real outstanding work, never absence of work.

Driver condition examples:

/goal keep running /flow-next:pilot until it prints PILOT_VERDICT=NO_WORK, or stop after 20 turns
/goal keep running /flow-next:pilot --review=codex until PILOT_VERDICT=NO_WORK or PILOT_VERDICT=NEEDS_HUMAN

Forbidden

• Asking the user anything in the tick path. Pilot is autonomous; ambiguity maps to NEEDS_HUMAN. In backlog mode, ambiguity that needs a person is surfaced async via the ask stage (ASKED) — never an interactive AskUserQuestion.
• Dispatching any skill outside the stage set {plan, plan-review, work, make-pr} - plus qa only when pipeline.qa==on (fn-72: an opt-in, gate-reversed stage at the all-done juncture before make-pr; with the gate off, qa is forbidden and the stage set is byte-for-byte unchanged). Backlog mode (PILOT_AUTONOMY=backlog) additionally invokes /flow-next:tracker-sync for the reconcile / list-open / list-comments / list-relations / question ops - these are read/surface-only tracker calls (list-comments reads parked question rounds; list-relations reads dependency relations for dep-ordering), not a pipeline stage, and run only on the backlog path. Capture, interview, chart, resolve-pr, merge, and release are never pilot stages - they stay forbidden for their distinct reasons (capture/interview/chart are human authoring and discovery upstream of the consent boundary; resolve-pr/merge/release are land's territory downstream of the PR). Opening qa under its gate, or tracker-sync under backlog mode, sets no precedent for any of those — a tick that dispatched one of them by analogy has broken this.
• Re-implementing sub-skill logic. Pilot owns selection, dispatch, verification, verdicts, and the strikes ledger only. The backlog-mode SELECT/TRIAGE/ASK workflow lives in references/backlog-mode.md (loaded only when PILOT_AUTONOMY=backlog); the question-anchor authoring + answer round-trip live in tracker-sync — backlog mode invokes them, never re-implements them.
• Never merging / never invoking land (R6) — in either mode, the terminus is make-pr (draft). Merge stays human-gated. Backlog mode never calls /flow-next:land, gh pr merge, or any merge path.
• Never authoring a spec (backlog mode) — capture/interview are human-gated upstream. A missing/too-thin spec is surfaced as a "needs capture/interview" gap and parked (ASKED), never auto-written. The only writing the ask stage may do is fill an obvious blank in an existing spec — never create a spec stub from a bare ticket.
• Touching gh anywhere except the all-done classification branch's PR probe and the make-pr verification probe.
• Printing anything after the PILOT_VERDICT line.
• Running under Ralph (FLOW_RALPH / REVIEW_RECEIPT_PATH).

Workflow

Execute workflow.md in order:

1. guards — refuse Ralph nesting, refuse dirty non-.flow/ start state, resolve the .git strikes ledger (read-only at this point). Done when: both guards have passed and LEDGER_JSON is loaded without a write.
2. select — two-pass ready-spec selection with dependency, claim, and re-bless checks. Done when: exactly one spec is selected, or the pool is empty and the terminal split has been chosen.
3. classify — derive one stage from flowctl state; probe gh only in the all-done branch. Done when: exactly one stage from the allowed set is named, with the consulted status fields echoed.
4. branch — resolve the spec branch matrix before work or make-pr. Done when: the worktree sits on the branch the matrix row names, or the tick has stopped NEEDS_HUMAN on a failed checkout.
5. dispatch — invoke exactly one stage skill with mode:autonomous plus review/research/depth passthroughs. Done when: one stage skill has been invoked and returned.
6. verify — re-read flowctl state, or gh for make-pr, and echo before/after evidence. Done when: the before/after evidence block plus the stage-outcome line are in the transcript and advanced is decided from observed state.
7. report — clear or record strikes, optionally unready on the second healthy no-advance tick, and print the terminal verdict. Done when: the ledger reflects this tick and the terminal PILOT_VERDICT line is the last line of the response.

Backlog mode (PILOT_AUTONOMY=backlog). When the autonomy gate resolved to backlog, the SELECT and TRIAGE/ASK behavior follows references/backlog-mode.md — the agentic floor scheduler (loaded only in this mode). It widens SELECT (pull-before-scan, union tracker-only items, dep-order, skip parked) and adds the triage/ask stages in front of CLASSIFY; a workable item flows into the existing classify → branch → dispatch → verify path unchanged. workflow.md Phase 0.5 resolves the mode and routes; workflow.md Phase 1.5/Phase 3.5 carry the backlog SELECT + TRIAGE/ASK hooks and the safety invariants. The single-tick contract is unchanged: one item, one stage or one durable park, one terminal verdict.

Unattended runs — rp caveat

The rp review backend runs headlessly through the CE-first CLI ladder — it needs RepoPrompt CE running on the same Mac (cold start: open -ga "RepoPrompt CE"; a stopped app fails fast). Classic is only the final compatibility fallback. On remote/CI machines, use --review=codex, --review=copilot, --review=cursor, --review=host (host-native subagent; needs a cross-family pin in AGENTS.md model-routing), or --review=none. Wall-clock limits and iteration caps belong to the driver (/goal --tokens, /goal stop clauses, or /loop cadence); a pilot tick has no timeout machinery.