Next Round — Archive + Draft the Next task.md

You help the user move from one /auto round to the next in a multi-round research program. The user decides what to do; you only assist. You do exactly three things:

1. Archive this round's outputs into rounds/round_<N>/.
2. Draft the next round's task.md (a starting point the user edits), with recommended BEHAVIOR_SOURCE / MECHANISM params.
3. Report what you did and what the user should run next.

You read the Global Exploration Memory (research_memory.json) for context and recommendations, but you never write it — that file is owned solely by /auto (see skills/auto/SKILL.md → "Global Exploration Memory"). You archive the just-finished round into rounds/round_<N>/ where <N> is the round number resolved in Step 1.

The two re-run intents

The user's next round is one of (read $ARGUMENTS; if absent, recommend then confirm via AskUserQuestion):

The actual "don't redo concluded work" enforcement happens inside /auto (the claim agent reads research_memory.json by default). Your drafted task.md only needs to carry the direction, the recommended behavior-source / mechanism, and a human-readable summary of what's been explored.

Workflow

Step 0 — Preconditions

# This round's outputs must be present at the project root (not yet archived).
ls -d idea-stage refine-logs verify review-stage 2>/dev/null
[ -s CLAIMS_LEDGER.md ] && echo "ledger present" || echo "no ledger"
[ -s research_memory.json ] && echo "memory present" || echo "no memory"
[ -s task.md ] && echo "task.md present" || echo "no task.md"

• If no round outputs are present (refine-logs/ etc. all absent), there is nothing to transition from — tell the user to run /auto first and stop.
• If research_memory.json is absent but round outputs exist, /auto did not reach its final memory hook (crashed, or the reproduction combo given+given). You can still archive and draft, but warn that memory-based recommendations and avoid-repeat will be unavailable this transition.

Step 1 — Determine the round number and read memory

# Round number = highest existing archive slot + 1. Parse the numeric SUFFIX of
# rounds/round_<k>, not a count — a count recycles a slot when a middle archive was deleted
# (round_1, round_3 present, round_2 gone → count=2 → 3 collides with round_3). The
# multi-round guard guarantees prior rounds are archived before a fresh /auto, so max-suffix+1
# is the round whose outputs now sit at root — collision-free and INDEPENDENT of whether
# memory was written (not-established given-validation/discovery rounds record no mechanisms[] entry;
# reproduction-combo (given+given) rounds skip the memory write entirely).
MAXARCH=$(ls -d rounds/round_* 2>/dev/null | sed 's#.*/round_##' | grep -E '^[0-9]+$' | sort -n | tail -1)
[ -z "$MAXARCH" ] && MAXARCH=0
N=$(( MAXARCH + 1 ))
# Defensive cross-check: if memory records a higher round, trust it (a gap is safer than a clobber).
if [ -s research_memory.json ]; then
  MEM=$(jq '[ (.behaviors[].mechanisms[].round // empty), (.behaviors[].decided_in_round // empty) ] | max // 0' research_memory.json 2>/dev/null)
  [ -n "$MEM" ] && [ "$MEM" -gt "$N" ] 2>/dev/null && N=$MEM
fi
echo "round to archive: $N"

Read research_memory.json (when present) for: the overarching direction, the list of explored behaviors[] (statement + status + prose behavior_conclusion + impact.assessment / recommendation), and per behavior the tried mechanisms (each entry's direction + family + headline + per-claim statement / method / conclusion), plus untried_mechanism_directions per behavior and the root untried_behavior_directions. Judge whether a mechanism attempt is stably positive, stably negative, or still open (deferred / integrity-broken / mixed / under-power) from that entry's headline + every claims[].conclusion — the schema records prose findings, and that is where settlement lives.

Only rounds that produced a scientific outcome are recorded here — /auto writes nothing for ended-needs-decision exits. If the just-finished round happens to be one of those, memory reflects only the state up to the previous recorded round; the operational stop is documented in the archived round's CLAIMS_LEDGER.md.round_end for the user to inspect, but this skill does not consult it. Users who ran into a fixable stop are expected to apply the named remedy (in task.md or in the plan files) before invoking /next-round.

Step 2 — Resolve the intent (+ recommend)

Parse $ARGUMENTS:

• new-behavior → intent = new-behavior.
• new-mechanism <behavior-id> → intent = new-mechanism for that behavior. If the id is omitted, default to the most recent behavior in memory.
• Empty → derive a recommendation from the just-finished round's outcome, then confirm with AskUserQuestion (skip the prompt only if the user clearly pre-stated intent elsewhere):

Present the recommendation as the first option; the user always decides. Once resolved, set INTENT to either new-behavior or new-mechanism (and remember the chosen <behavior-id> for new-mechanism) — Step 3 reads INTENT to decide whether data/ + cache/ are kept or archived, and Step 4 reads it to shape the draft. A "re-validate" recommendation (last round's behavior was inconclusive) resolves mechanically to INTENT=new-mechanism — it keeps the same behavior (and its data//cache/), but Step 4's draft focuses on strengthening the M0 phenomenon test rather than choosing a new mechanism direction.

Step 3 — Archive this round

Use a keep-list, not an allowlist: enumerate what must stay, and archive everything else at the project root into rounds/round_<N>/. An allowlist of "things to move" silently goes stale every time the pipeline gains a new output type (it has already missed experiments/, results/, logs/, cache/, .mechanist/); a keep-list is immune to that.

Keep-list (never archived):

• Config / tooling: .claude/, .mcp.json, .git/, .gitignore
• Cross-round memory (orchestrator-owned): research_memory.json
• The archive root itself: rounds/
• Notification archive (cross-round, append-only): notification/ — the /notify skill's briefing log stays at root across rounds, never moved into rounds/round_<N>/
• task.md — a copy goes into the archive, but the live file stays (Step 4 replaces it)

Always archived (per-round provenance):

• Paper-search cache: mechanic_db_cache/ — moved into rounds/round_<N>/ every round. Each round's literature search reflects that round's direction/behavior, so the cache is round-specific evidence to preserve, not a cross-round resource to reuse. (It falls into the "everything else" sweep below automatically now that it is off the keep-list; called out here so the policy is explicit.)

Intent-dependent keep (stimuli / activation caches):

• new-mechanism (same behavior next round) → also keep data/ and cache/ so the next round reuses the same stimuli/activations instead of regenerating them.
• new-behavior → archive data/ and cache/ (a new phenomenon needs new data).

Everything else at the project root is archived — including idea-stage/ refine-logs/ verify/ review-stage/ runs/ figures/ experiments/ results/ logs/ experiment_queue/ .mechanist/ mechanic_db_cache/ CLAIMS_LEDGER.md claims_ledger.json and any future output type.

# Refuse to clobber an already-archived round. With the slot-based round number this is a
# safety net that should never fire on the normal path; if it does, the project state is
# ambiguous — HARD STOP. Do NOT mkdir, do NOT archive, do NOT continue to Step 4.
if [ -n "$(ls -A "rounds/round_${N}" 2>/dev/null)" ]; then
  echo "[next-round] ERROR: rounds/round_${N}/ already populated — refusing to clobber."
  echo "[next-round] NOT archiving and NOT drafting task.md. Resolve manually:"
  echo "[next-round]   • if round ${N} is genuinely already archived, there is nothing to do;"
  echo "[next-round]   • otherwise inspect rounds/ for a gap or mismatch before re-running."
  exit 3
fi
mkdir -p "rounds/round_${N}"

# Keep-list (config / memory / archive-root). mechanic_db_cache is NOT kept — it is
# archived per round (round-specific literature evidence) via the everything-else sweep.
keep=( .claude .mcp.json .git .gitignore task.md research_memory.json rounds notification )
# new-mechanism reuses stimuli + activation cache; new-behavior archives them.
[ "$INTENT" = "new-mechanism" ] && keep+=( data cache )

# Build the archive plan (everything at root not in keep-list), PRINT it, then move.
echo "[next-round] will archive → rounds/round_${N}/:"; move=()
for p in * .[!.]*; do
  [ -e "$p" ] || continue
  skip=0; for k in "${keep[@]}"; do [ "$p" = "$k" ] && skip=1 && break; done
  [ "$skip" = 1 ] && continue
  move+=( "$p" ); echo "    $p"
done
echo "[next-round] keeping at root: ${keep[*]}"
for p in "${move[@]}"; do mv "$p" "rounds/round_${N}/"; done
# Snapshot the round's task.md alongside its outputs (the live task.md is replaced in Step 4).
[ -e task.md ] && cp task.md "rounds/round_${N}/task.md"
echo "archived round ${N} → rounds/round_${N}/"

If a path is large and mv fails (e.g. cross-device), retry with rsync -a --remove-source-files — do not ask permission. Print the plan before moving so the user can eyeball it; if the user pre-flagged a path to keep/move differently, honor that over the defaults.

If the clobber guard fired (exit 3): terminate the entire skill immediately — do not enter Step 4, do not overwrite task.md, do not report success. Relay the error verbatim to the user and stop. Aborting here leaves the root outputs un-archived as-is (the next /auto's multi-round guard will halt on them again, as intended), which avoids the deadlock of a draft-overwritten task.md sitting next to stranded prior-round outputs.

Step 4 — Draft the next task.md

Run this step only if Step 3 archived successfully (the clobber guard did not abort).

Overwrite task.md at the project root with a DRAFT the user will edit. Keep it short; the avoid-repeat enforcement is /auto's job, so this file just orients the user. Follow task.md's existing language.

Template (fill from memory + the archived task.md):

<!-- DRAFT for round <N+1> — generated by /next-round. EDIT before running /auto. -->
<!-- Recommended: /auto — behavior-source: <discovery | given | given-validation>, mechanism: discovery -->

# Research direction
<carry over the overarching direction from the previous task.md / memory `direction`>

<!-- new-mechanism only: state the behavior to keep, so behavior-source: given picks it up -->
## Behavior to investigate (this round)
<the chosen behavior's one-sentence statement — only for new-mechanism>

## Already explored (for reference — /auto will avoid re-doing these)
- Behavior B1 "<statement>" — status: <established|...>
  - Conclusion: <behavior_conclusion — what is now known about the phenomenon>
  - Impact: <impact.assessment — one-line case>; recommendation: <impact.recommendation>
  - Mechanisms tried: <direction> (<family>) — <headline (the actual finding + key number)>
    - Claims:
      - C1 — <statement> — <conclusion>
      - C2 — <statement> — <conclusion>
- Behavior B2 "<statement>" — status: ...; conclusion: ...
<!-- Pull behavior_conclusion / impact.assessment / mechanism headline / per-claim statement + conclusion from research_memory.json — show the substantive findings and paper-style conclusions (not PASS/FAIL labels, not raw ids), so the human (and the next /auto run) can build on them. Skip mechanisms whose (direction, family) has already been read as stably positive or stably negative — they add noise for the reader; keep the ones the user could realistically retry (deferred / integrity-broken / mixed / under-power). -->
<!-- new-mechanism: also list this behavior's untried_mechanism_directions as suggestions, and briefly note (from the tried mechanisms' conclusion prose) what has and hasn't been settled so the new direction is complementary. -->
<!-- new-behavior: this list is the set to avoid; consider untried_behavior_directions: <...> -->

## Notes
<one line: what this round should push on, per the recommendation>

• new-behavior: leave the "Behavior to investigate" section out; fill "Already explored" with all behaviors so the user (and /auto) avoid them; surface untried_behavior_directions as candidate starting points.
• new-mechanism: fill "Behavior to investigate" with the chosen behavior verbatim (this is what behavior-source: given reads), and list as suggestions its untried_mechanism_directions plus any direction left inconclusive (unresolved, so still a valid retry target).
• re-validate (behavior inconclusive): fill "Behavior to investigate" with the same behavior; in Notes, point to the M0 weakness from behavior_conclusion and what to strengthen (data / contrast / model) so the re-run can resolve it. Recommended param is behavior-source: given-validation (it re-opens the plan with the M0 gate). Note: this keeps the prior data//cache/ (it maps to INTENT=new-mechanism), so if strengthening M0 needs new/stronger data, tell the user to delete data/ (and cache/) before running /auto — otherwise the kept stimuli are reused.

Step 5 — Report

Print a concise summary:

[next-round] archived round <N> → rounds/round_<N>/
[next-round] intent: <new-behavior | new-mechanism <behavior-id>>
[next-round] drafted task.md for round <N+1> (recommended: /auto — behavior-source: <...>, mechanism: <...>)
Next: edit task.md, then run /auto.

Key Rules

• You read memory, never write it. research_memory.json is owned by /auto. Do not edit it, do not move it.
• The user decides. When intent is ambiguous, recommend (first option) and confirm with AskUserQuestion; never silently pick.
• Archive is non-destructive. Move outputs into rounds/round_<N>/; keep a copy of the round's task.md; never overwrite an existing rounds/round_<N>/. If the target already has contents, this is a hard failure (exit 3), not a silent skip: abort the entire skill and never go on to overwrite task.md while this round's outputs remain un-archived at root.
• The drafted task.md is a starting point, not the source of truth. Avoid-repeat is enforced by /auto reading memory; the draft just orients the human.