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stack/packages/mosaic/framework/tools/wake/store.sh
T
Jason WoltjeandClaude Fable 5 e11bc66223
ci/woodpecker/pr/ci Pipeline was successful
fix(wake): #946 digest ack watermark clamped at quarantined seqs — disclose AND clamp
The embedded ack suggestion covered dead-lettered entries: quarantine is a
render-time filter (0.6.14), so `ack.sh consumed --upto <observed_seq>`
stepped the cursor past quarantined seqs and _record_last_consumed wrote
consumed-hash witness rows for deliveries that never happened (live: mos-dt
seq 68 buried under five successive digests; Finding A: a false
9d0f639f…@63 witness row).

Fix, per the ruled disposition on #946:

- digest.sh: rendered digest gains a QUARANTINED section (seq + class +
  HELD only — ids and locator values stay withheld, preserving the
  exclusion property); embedded ack clamped to
  min(observed_seq, min quarantined seq - 1) with a loud
  "# ACK CLAMPED (#946)" note; render --from-store syncs the store-owned
  quarantined.set via `store.sh quarantine-sync` (full replace — a gate
  fix self-heals stale quarantine); --from-file/--stdin never touch the
  set.

- store.sh: consume REFUSES to cross an unconsumed quarantined seq;
  `--force-past-quarantine` is the ONLY way past, loud per-seq on stderr,
  and even the forced path never writes a consumed-hash witness for a
  quarantined seq; crossed seqs are pruned from the set after the cursor
  moves. New `quarantine-sync` (stdin seqs, full replace, invalid input is
  a loud no-op) and `quarantine-audit [--repair]` (sweeps consumed-hashes
  for rows provably contradicted by the dead-letter ledger; report exits
  1; --repair removes only provably-false rows; the ledger is history and
  never modified; rows whose dead-letter evidence was pruned are
  unprovable and untouched).

- ack.sh: plumbs --force-past-quarantine through to store consume; forced-
  path loudness is re-emitted on stderr while `CONSUMED <n>` stays clean.

Tests: test-wake-store-ack.sh T13-T16 (34 assertions RED at base),
test-wake-digest-quarantine.sh Q12-Q16 (10 RED at base; Q13/Q16
green-by-design controls). All nine wake suites green. version=0.6.15.

Closes #946

Written-by: pepper (sb-it-1-dt)
Co-Authored-By: Claude Fable 5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01NsKce8iZuSuRnu3gVMCBKB
2026-07-30 10:10:21 -05:00

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#!/usr/bin/env bash
# store.sh — A2 of the wake canon (EPIC #892, W2): the THREE-CURSOR durable
# queue (store + drain lib).
#
# CONTRACT ANCHORS (docs/scratchpads/heartbeat-planning/CONVERGED-DESIGN.md):
# §1.2 three-cursor data-flow: observe -> durable store -> coalesce -> drain.
# §2.3 classes & durability: ALL classes durable; coalescing is optional.
# §2.4 cursor semantics: observed_seq is authoritative; SHAs are descriptors.
#
# Three cursors:
# observed_seq (store-owned SINGLE ALLOCATOR, #908) — monotonic int assigned by
# THIS lib at enqueue: next = observed_seq + 1, under an exclusive
# lock, committed IFF the durable write succeeds. Authoritative.
# There is exactly ONE allocator (this store); the detector and
# reconciler no longer allocate independently. Source SHAs are
# descriptors, NOT the cursor (§2.4).
# pending-inbox (durable) — append store; retains until CONSUMED; survives
# pane death / park / restart.
# consumed_seq (consumer-owned) — advances ONLY on a CONSUMED ack, over a
# CONTIGUOUS gapless prefix <=N. NEVER on sender exit-0 / paste.
#
# Coalesce (§1.2/§2.3): class=digest REPLACES the pending cumulative-state entry
# (newest subsumes prior). Non-coalescible classes (actionable, human, ...)
# APPEND. ALL classes are stored durably — durability is NEVER bypassed.
# Absent class => treated as `actionable` (fail-safe).
#
# HMAC: entries carry an `hmac` field left as an UNSIGNED PLACEHOLDER ("").
# Signing is W3/A5, explicitly NOT W2.
#
# Every state mutation is atomic write-tmp+rename (see _wake-common.sh).
#
# Operator-agnostic: state via XDG/env only; no operator paths/names/secrets.
set -uo pipefail
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
# shellcheck source=./_wake-common.sh disable=SC1091
. "$SCRIPT_DIR/_wake-common.sh"
STATE_DIR="$(wake_state_dir)"
_need_jq() {
command -v jq >/dev/null 2>&1 || {
echo "store.sh: jq is required" >&2
exit 3
}
}
usage() {
cat >&2 <<'EOF'
Usage: store.sh <command> [options]
Commands:
init Create/repair the XDG state layout.
enqueue [--class C] [opts] Record an observation into the durable
pending-inbox (coalesce or append) and
ALLOCATE its observed_seq. store.sh is the
SOLE allocator of observed_seq (#908):
under an exclusive enqueue lock it reads
the observed_seq cursor, sets
next = observed_seq + 1, writes the
pending record + observed.set + the cursor
as ONE transaction, and PRINTS next to
stdout. The cursor advances IFF the durable
write succeeds (no burn-before-enqueue).
--seq N LEGACY explicit observed_seq (optional). Normal callers
(detector, reconciler) OMIT this and let the store
allocate. Retained only for tests/tools that must place a
SPECIFIC seq (e.g. construct a gap). An explicit seq that
is <= consumed_seq is REFUSED loudly (anti-swallow): the
idempotent-ignore path can never silently drop a wake.
--class C digest|actionable|human|terminal-log|reaction.
Absent/empty => actionable (fail-safe).
--locators JSON JSON value for the entry's locators (default {}).
--emit-ts TS epoch seconds (default: now).
drain [--require-idle-cmd CMD] Emit the deliverable set (pending-inbox,
coalesced) as JSONL. WHAT to deliver;
the actual paste is out of scope.
If --require-idle-cmd is given and it
exits non-zero, emit nothing (not idle).
consume --upto N [--force-past-quarantine]
Advance consumed_seq over the contiguous
gapless prefix <=N; drop consumed
entries. Rejects a gap (cannot ack N
while N-1 is unconsumed). Cumulative &
idempotent. REFUSES to advance past a
QUARANTINED seq (#946): a quarantined
entry was dead-lettered at render and
never delivered in any digest, so an
ordinary ack may not record it consumed.
--force-past-quarantine is the ONLY way
past — loud per stepped-over seq, and
even then NO consumed-hash witness is
recorded for the quarantined entry.
quarantine-sync REPLACE the store-owned quarantined.set
with the observed_seqs read from stdin
(one per line; empty input CLEARS).
Called by digest.sh after each
authoritative store render — the set is
re-DERIVED per render, never accumulated,
so a fixed locator gate self-heals the
consume clamp (#944 recovery).
quarantine-audit [--repair] Report consumed-hashes rows that are
PROVABLY FALSE: the row matches a
dead-letter ledger entry on
(kind,id,observed_seq,observed_hash) at
or below consumed_seq — i.e. the recorded
consumption was of a quarantined,
never-delivered entry (#946 Finding A).
Report-only by default (exit 1 when any
found); --repair removes exactly those
rows (atomic, loud). The dead-letter
ledger itself is NEVER modified (it is
history). Rows whose dead-letter evidence
was pruned are NOT provable and are
never touched.
cursors Print observed_seq / consumed_seq / depth.
Environment:
WAKE_STATE_HOME override base (default ${XDG_STATE_HOME:-$HOME/.local/state}/mosaic/wake)
WAKE_AGENT per-agent queue namespace (default: default)
EOF
}
cmd_init() {
_wake_init_dir "$STATE_DIR" || {
echo "store.sh: failed to init $STATE_DIR" >&2
exit 1
}
# Maintenance/daemon-start stale-tmp reap (#927). Cleanup is OFF the per-enqueue
# hot path; `init` is a natural once-per-start maintenance point. It is
# age-scoped, so even if an operator runs `init` while an enqueue is in flight
# it can only reap demonstrably-orphaned (crash-left) tmps, never a live write.
_wake_clean_stale_tmp "$STATE_DIR"
echo "$STATE_DIR"
}
cmd_enqueue() {
_need_jq
local seq='' class='' locators='{}' emit_ts=''
while [ $# -gt 0 ]; do
case "$1" in
--seq)
seq="${2:-}"
shift 2
;;
--class)
class="${2:-}"
shift 2
;;
--locators)
locators="${2:-}"
shift 2
;;
--emit-ts)
emit_ts="${2:-}"
shift 2
;;
*)
echo "store.sh enqueue: unknown option '$1'" >&2
exit 2
;;
esac
done
# --seq is OPTIONAL (#908): normal callers omit it and the store allocates.
# If supplied (legacy/explicit), it must be a non-negative integer.
local explicit=0
if [ -n "$seq" ]; then
explicit=1
case "$seq" in
*[!0-9]*)
echo "store.sh enqueue: --seq must be a non-negative integer" >&2
exit 2
;;
esac
fi
# Absent class => actionable (fail-safe, §2.3).
[ -n "$class" ] || class="actionable"
case "$class" in
digest | actionable | human | terminal-log | reaction) : ;;
*)
echo "store.sh enqueue: unknown class '$class'" >&2
exit 2
;;
esac
[ -n "$emit_ts" ] || emit_ts="$(date +%s)"
case "$emit_ts" in
*[!0-9]*)
echo "store.sh enqueue: --emit-ts must be epoch seconds" >&2
exit 2
;;
esac
# Validate locators is well-formed JSON.
if ! printf '%s' "$locators" | jq -e . >/dev/null 2>&1; then
echo "store.sh enqueue: --locators must be valid JSON" >&2
exit 2
fi
# Ensure the layout exists. NB (#927): _wake_init_dir NO LONGER reaps stale
# tmps — that would race a concurrent enqueue's live in-flight write (deleting
# its tmp mid-rename -> spurious "durable pending write FAILED"). Stale-tmp
# reaping is a maintenance action (store.sh init / detector tick), never on this
# hot path.
_wake_init_dir "$STATE_DIR"
# --- serialize the whole allocate+write transaction (#908) ----------------
# A single store-side allocator means the read of observed_seq, the durable
# write, and the cursor bump MUST be one critical section: two concurrent
# enqueues that both read observed_seq=N would otherwise both allocate N+1 and
# collide. The lock (flock where present) makes concurrent enqueues get
# DISTINCT seqs.
_wake_lock_acquire "$STATE_DIR/.enqueue.lock" || {
echo "store.sh enqueue: could not acquire the enqueue lock ($STATE_DIR/.enqueue.lock)" >&2
exit 1
}
local consumed observed
consumed="$(_wake_read_int "$STATE_DIR/consumed_seq" 0)"
observed="$(_wake_read_int "$STATE_DIR/observed_seq" 0)"
if [ "$explicit" -eq 0 ]; then
# ALLOCATE: the store is the sole allocator. next = observed_seq + 1.
seq=$((observed + 1))
fi
# --- anti-swallow FAIL-LOUD (#908, arrow #3) ------------------------------
# observed_seq >= consumed_seq always (consumed advances only over the gapless
# observed prefix), so an ALLOCATED next = observed+1 is ALWAYS > consumed. The
# old "seq <= consumed => idempotent no-op" path is therefore UNREACHABLE for an
# allocation; if it is ever reached the store is inconsistent (corruption) — we
# FAIL LOUD, never a silent no-op. For a LEGACY explicit --seq, a seq inside the
# consumed prefix is likewise refused loudly so it can never silently swallow a
# fresh obligation (the migration-restart killer must be structurally impossible).
if [ "$seq" -le "$consumed" ]; then
_wake_lock_release
if [ "$explicit" -eq 1 ]; then
echo "store.sh enqueue: REFUSED explicit --seq $seq <= consumed_seq $consumed — anti-swallow (#908): a seq inside the consumed prefix is never a fresh obligation and must NEVER be silently ignored." >&2
else
echo "store.sh enqueue: FAIL LOUD (#908 allocation invariant) — computed observed_seq $seq <= consumed_seq $consumed (observed_seq cursor=$observed). The store is inconsistent; refusing to allocate rather than silently no-op." >&2
fi
exit 1
fi
# Build the durable entry. `hmac` is an UNSIGNED PLACEHOLDER (W3/A5 signs it).
local entry
entry="$(jq -cn \
--argjson seq "$seq" \
--arg class "$class" \
--argjson locators "$locators" \
--argjson emit_ts "$emit_ts" \
'{observed_seq:$seq, locators:$locators, class:$class, emit_ts:$emit_ts, hmac:""}')" || {
_wake_lock_release
echo "store.sh enqueue: failed to build entry" >&2
exit 1
}
# --- durable store write (coalesce vs append) -----------------------------
# digest: REPLACE the single pending cumulative-state entry (drop any existing
# digest lines, then append the newest). Newest subsumes prior.
# others: APPEND (never replaced).
# In BOTH cases the entry lands in the durable store.
#
# ORDERING (#908, arrow #1 — no burn-before-enqueue): the durable pending write
# comes FIRST and its failure ABORTS before the observed.set / observed_seq
# cursor writes. The cursor advances IFF the durable pending write succeeds, so
# a failed enqueue can never burn a seq that never reached the store.
local new_pending
if [ "$class" = "digest" ]; then
new_pending="$(jq -c 'select(.class != "digest")' "$STATE_DIR/pending.jsonl" 2>/dev/null || true)"
new_pending="$(printf '%s\n%s\n' "$new_pending" "$entry" | grep -v '^[[:space:]]*$' || true)"
else
new_pending="$(cat "$STATE_DIR/pending.jsonl" 2>/dev/null; printf '%s\n' "$entry")"
new_pending="$(printf '%s' "$new_pending" | grep -v '^[[:space:]]*$' || true)"
fi
if ! printf '%s\n' "$new_pending" | grep -v '^[[:space:]]*$' | _atomic_write "$STATE_DIR/pending.jsonl"; then
_wake_lock_release
echo "store.sh enqueue: durable pending write FAILED for seq $seq — observed_seq cursor NOT advanced (no burned seq, no interior gap)." >&2
exit 1
fi
# --- observed.set: record the seq in the live window (gap-detector SoT) ----
# Snapshot observed.set's prior content FIRST: if the final cursor write below
# fails AFTER this write advances observed.set, we roll observed.set back to this
# snapshot so observed.set can never be left cross-file inconsistent with the
# cursor (#917 — observed.set ahead of a cursor that never committed).
local prev_observed_set
prev_observed_set="$(cat "$STATE_DIR/observed.set" 2>/dev/null || true)"
if ! {
printf '%s' "$prev_observed_set"
printf '\n%s\n' "$seq"
} | grep -v '^[[:space:]]*$' | sort -n | uniq | _atomic_write "$STATE_DIR/observed.set"; then
_wake_lock_release
echo "store.sh enqueue: observed.set write FAILED for seq $seq — observed_seq cursor NOT advanced." >&2
exit 1
fi
# --- observed_seq cursor: max monotonic int (COMMIT of the allocation) -----
# Written LAST: only now, after the durable pending + observed.set writes
# succeeded, does the cursor advance. This is the atomic commit point of the
# allocation.
#
# #917 (defense-in-depth): this final write is GATED like the pending/observed.set
# writes (#908) — its failure is FAIL-LOUD, never silently swallowed (which would
# return success while the allocation stayed uncommitted). And because observed.set
# was already advanced just above, a cursor-write failure would leave observed.set
# ahead of the cursor (cross-file inconsistent); so on failure we ROLL observed.set
# BACK to its pre-write snapshot before failing loud. Net: observed.set and the
# cursor either BOTH advance or NEITHER does — never a stranded observed.set entry
# above the cursor. (The pending write may remain ahead, exactly as #908 already
# tolerates on the observed.set-failure path: the cursor is the sole COMMIT point,
# so an uncommitted pending entry is re-derived/reconciled, never consumed — the
# allocation is simply not committed.) On-disk format is UNCHANGED (read-compatible).
if [ "$seq" -gt "$observed" ]; then
if ! printf '%s' "$seq" | _atomic_write "$STATE_DIR/observed_seq"; then
printf '%s' "$prev_observed_set" | grep -v '^[[:space:]]*$' | _atomic_write "$STATE_DIR/observed.set" || true
_wake_lock_release
echo "store.sh enqueue: observed_seq cursor write FAILED for seq $seq — allocation NOT committed; rolled observed.set back so it stays consistent with the cursor (#917)." >&2
exit 1
fi
fi
_wake_lock_release
# Print the allocated observed_seq to stdout (sole-allocator contract): the
# detector/reconciler capture it for logging/locators/emit.
printf '%s\n' "$seq"
}
cmd_drain() {
local idle_cmd=''
while [ $# -gt 0 ]; do
case "$1" in
--require-idle-cmd)
idle_cmd="${2:-}"
shift 2
;;
*)
echo "store.sh drain: unknown option '$1'" >&2
exit 2
;;
esac
done
# Drain returns the deliverable set ONLY when the pane is idle-at-prompt. The
# actual idle detection + paste is out of W2 scope (send-message.sh); the
# caller supplies an idle predicate. No predicate => emit unconditionally.
if [ -n "$idle_cmd" ]; then
if ! sh -c "$idle_cmd" >/dev/null 2>&1; then
return 0 # not idle-at-prompt: deliver nothing this cycle.
fi
fi
[ -f "$STATE_DIR/pending.jsonl" ] || return 0
grep -v '^[[:space:]]*$' "$STATE_DIR/pending.jsonl" 2>/dev/null || true
}
# _record_last_consumed UPTO — #932: at consume-truncation, record the
# last-consumed observed_hash per (kind,id) into a STORE-OWNED durable record
# (consumed-hashes.jsonl). This is the record the reconciler consults as its
# THIRD accounting source: after consume truncates the pending prefix, a consumed
# state matches NEITHER the inbox (truncated) NOR the reconciler's seen-ledger
# (which only covers the reconciler's OWN enumerations), so the reconciler used
# to treat it as UNACCOUNTED and re-enumerate it — one duplicate orientation wake
# + one spurious rc=1 CRITICAL per detector-active window per cycle (safe but
# noisy; G2a alarm-hygiene at fleet scale).
#
# Called BEFORE the pending prefix is dropped (it reads the entries being
# consumed). For each entry with observed_seq <= UPTO that carries full source
# locators (kind,id,observed_hash), keep the HIGHEST-seq hash per (kind,id) as
# that source's last-consumed state; merge with any prior record (monotonic —
# consume only advances, so a newer consume's seq always wins its key).
#
# TRUST BOUNDARY (load-bearing): this record is written ONLY here, at CONSUME of a
# durably-enqueued entry, so its existence implies the state WAS durably
# enqueued+consumed. It therefore structurally cannot exhibit the §5 swallow-hole
# signature (hash-advance-WITHOUT-enqueue). It is a STORE record — the detector's
# own hash-file stays DISTRUSTED and is never consulted for accounting.
#
# ADDITIVE: a new file consumed-hashes.jsonl; the existing on-disk format is
# unchanged and read-compatible (older code ignores this file). Atomic write.
# Best-effort: a failure here degrades to the pre-#932 safe-but-noisy behaviour
# (the reconciler re-enumerates the consumed state once — no lost obligation),
# never a failed consume.
_record_last_consumed() {
local upto="$1" existing new_records merged qjson
[ -f "$STATE_DIR/pending.jsonl" ] || return 0
# #946: seqs in quarantined.set are EXCLUDED from the record — the trust
# boundary above says "existence implies durably enqueued+CONSUMED", but a
# quarantined entry was dead-lettered at render and NEVER delivered, so a row
# for it would witness a delivery that never happened. This holds even on the
# FORCED step-over path: the reconciler re-enumerating the state once is
# safe-but-noisy; a false witness silences it forever.
qjson="$(jq -nR -c '[inputs | select(length > 0) | tonumber? // empty]' "$STATE_DIR/quarantined.set" 2>/dev/null || true)"
[ -n "$qjson" ] || qjson='[]'
new_records="$(jq -c --argjson upto "$upto" --argjson quarantined "$qjson" '
(.observed_seq // -1) as $seq
| select($seq <= $upto)
| select(($quarantined | index($seq)) == null)
| select((.locators.kind // "") != "" and (.locators.id // "") != "" and (.locators.observed_hash // "") != "")
| {kind:.locators.kind, id:.locators.id, observed_hash:.locators.observed_hash, observed_seq:.observed_seq}
' "$STATE_DIR/pending.jsonl" 2>/dev/null || true)"
[ -n "$new_records" ] || return 0
existing="$(cat "$STATE_DIR/consumed-hashes.jsonl" 2>/dev/null || true)"
merged="$(printf '%s\n%s\n' "$existing" "$new_records" | grep -v '^[[:space:]]*$' |
jq -s -c 'group_by([.kind, .id]) | .[] | max_by(.observed_seq)' 2>/dev/null || true)"
[ -n "$merged" ] || return 0
if ! printf '%s\n' "$merged" | grep -v '^[[:space:]]*$' | _atomic_write "$STATE_DIR/consumed-hashes.jsonl"; then
echo "store.sh consume: WARN — could not record last-consumed hashes (#932); the reconciler may re-enumerate the consumed state once (safe-but-noisy), no lost obligation." >&2
fi
}
cmd_consume() {
local upto='' force=0
while [ $# -gt 0 ]; do
case "$1" in
--upto)
upto="${2:-}"
shift 2
;;
--force-past-quarantine)
force=1
shift
;;
*)
echo "store.sh consume: unknown option '$1'" >&2
exit 2
;;
esac
done
case "$upto" in
'' | *[!0-9]*)
echo "store.sh consume: --upto must be a non-negative integer" >&2
exit 2
;;
esac
_need_jq
_wake_init_dir "$STATE_DIR"
local consumed observed
consumed="$(_wake_read_int "$STATE_DIR/consumed_seq" 0)"
observed="$(_wake_read_int "$STATE_DIR/observed_seq" 0)"
# Cumulative & idempotent: CONSUMED N implies all <=N. N already covered is a
# no-op success (the sender checks cursor-advanced-past-X, not per-wake).
if [ "$upto" -le "$consumed" ]; then
echo "$consumed"
return 0
fi
# Never consume beyond what was observed.
if [ "$upto" -gt "$observed" ]; then
echo "store.sh consume: cannot CONSUMED $upto beyond observed_seq $observed" >&2
exit 1
fi
# CONTIGUOUS gapless prefix: every seq in (consumed, upto] must have been
# observed. A missing interior seq is a GAP => reject (cannot ack N while N-1
# is unconsumed). observed.set is coalescing-immune, so a subsumed digest seq
# still counts as observed and does not read as a gap.
local k
k=$((consumed + 1))
while [ "$k" -le "$upto" ]; do
if ! grep -qxF "$k" "$STATE_DIR/observed.set" 2>/dev/null; then
echo "store.sh consume: gap at seq $k — cannot CONSUMED $upto while $k is unobserved/unconsumed" >&2
exit 1
fi
k=$((k + 1))
done
# --- #946 quarantine CLAMP -------------------------------------------------
# A quarantined seq was DEAD-LETTERED at render (no §2.1 hard locator): it was
# never delivered in any digest, so advancing consumed_seq past it would record
# consumption of an entry the consumer has never seen. The ordinary path
# REFUSES; --force-past-quarantine is the ONLY way past, and it is loud per
# stepped-over seq. digest.sh re-derives the set at each authoritative store
# render (quarantine-sync REPLACE), so a fixed locator gate self-heals this
# clamp without operator action.
local qfile="$STATE_DIR/quarantined.set" blocked='' q
if [ -s "$qfile" ]; then
while IFS= read -r q; do
case "$q" in '' | *[!0-9]*) continue ;; esac
if [ "$q" -gt "$consumed" ] && [ "$q" -le "$upto" ]; then
blocked="$blocked $q"
fi
done <"$qfile"
fi
if [ -n "$blocked" ]; then
if [ "$force" -eq 0 ]; then
echo "store.sh consume: REFUSED (#946 quarantine clamp) — quarantined seq(s):$blocked inside (consumed_seq=$consumed, upto=$upto] were dead-lettered at render and NEVER delivered in any digest. Advancing past them would record consumption of entries the consumer has never seen. Disposition them (see $STATE_DIR/dead-letter.jsonl) or step over EXPLICITLY with --force-past-quarantine." >&2
exit 1
fi
for q in $blocked; do
echo "store.sh consume: FORCED PAST QUARANTINE (#946) — stepping consumed_seq over quarantined seq $q (dead-lettered, NEVER delivered). No consumed-hash witness is recorded for it; the obligation stays visible ONLY in $STATE_DIR/dead-letter.jsonl." >&2
done
fi
# #932: record the last-consumed observed_hash per (kind,id) BEFORE the pending
# prefix is dropped (this reads the entries about to be truncated), so the
# reconciler can recognise an already-consumed state as ACCOUNTED instead of
# re-enumerating it. Additive, store-owned, best-effort (never fails consume).
_record_last_consumed "$upto"
# Advance the consumer cursor and drop the now-consumed prefix from the
# durable store (retain-until-CONSUMED is satisfied).
jq -c "select(.observed_seq > $upto)" "$STATE_DIR/pending.jsonl" 2>/dev/null |
grep -v '^[[:space:]]*$' | _atomic_write "$STATE_DIR/pending.jsonl" || true
awk -v c="$upto" 'NF && $1+0 > c' "$STATE_DIR/observed.set" 2>/dev/null |
_atomic_write "$STATE_DIR/observed.set" || true
printf '%s' "$upto" | _atomic_write "$STATE_DIR/consumed_seq"
# #946: on a forced step-over, PRUNE the stepped-over seqs from quarantined.set
# (they are inside the consumed prefix now; a stale entry would re-refuse the
# next consume forever). Mirrors the observed.set prune idiom above.
if [ -n "$blocked" ]; then
awk -v c="$upto" 'NF && $1+0 > c' "$qfile" 2>/dev/null |
_atomic_write "$qfile" || true
fi
echo "$upto"
}
# cmd_quarantine_sync — #946: REPLACE the store-owned quarantined.set with the
# observed_seqs read from stdin (one per line). Called by digest.sh after each
# AUTHORITATIVE full-set render (src=store): the set is re-DERIVED per render,
# never accumulated, so a fixed locator gate self-heals the consume clamp (the
# #944 recovery case — a cumulative-forever set would keep refusing acks on
# entries that now render). Empty input CLEARS the set. Foreign-data renders
# (--from-file/--stdin) never call this. Atomic write; invalid input is refused
# loudly with the set left untouched.
cmd_quarantine_sync() {
[ $# -eq 0 ] || {
echo "store.sh quarantine-sync: takes no options (observed_seqs on stdin, one per line)" >&2
exit 2
}
local seq list=''
while IFS= read -r seq; do
[ -n "$seq" ] || continue
case "$seq" in
*[!0-9]*)
echo "store.sh quarantine-sync: invalid observed_seq '$seq' — one non-negative integer per line; set left untouched" >&2
exit 2
;;
esac
list="$list$seq"$'\n'
done
_wake_init_dir "$STATE_DIR"
if ! { printf '%s' "$list" | grep -v '^[[:space:]]*$' || true; } | sort -n | uniq | _atomic_write "$STATE_DIR/quarantined.set"; then
echo "store.sh quarantine-sync: quarantined.set write FAILED — the consume clamp may be stale for this lane" >&2
exit 1
fi
}
# cmd_quarantine_audit — #946 Finding A: the pre-#946 consume recorded
# consumed-hash rows for QUARANTINED (never-delivered) entries — false
# witnesses that silence the reconciler for keys whose only "consumption" was a
# dead-lettered entry (live: safe by population only where the key re-emitted
# and a later seq won the per-key max_by merge; keys that never recurred keep
# the false row forever).
#
# A row is PROVABLY FALSE iff the dead-letter ledger contains an entry matching
# it on (kind, id, observed_seq, observed_hash) AND row.observed_seq <=
# consumed_seq: the per-key max_by merge means the surviving row's provenance IS
# that quarantined entry (a healed row differs in seq/hash and never matches).
# PROVABILITY BOUND: a row whose dead-letter evidence was pruned/rotated away is
# NOT provable and is never touched — this audit only ever removes what the
# ledger can convict. The dead-letter ledger itself is history and is NEVER
# modified here.
cmd_quarantine_audit() {
local repair=0
while [ $# -gt 0 ]; do
case "$1" in
--repair)
repair=1
shift
;;
*)
echo "store.sh quarantine-audit: unknown option '$1'" >&2
exit 2
;;
esac
done
_need_jq
_wake_init_dir "$STATE_DIR"
local rec="$STATE_DIR/consumed-hashes.jsonl" dlf="$STATE_DIR/dead-letter.jsonl"
if [ ! -s "$rec" ]; then
echo "store.sh quarantine-audit: OK — no consumed-hashes record to audit"
return 0
fi
local dl
dl="$(jq -s -c '[.[] | {kind: (.locators.kind // ""), id: ((.locators.id // "") | tostring), observed_seq: (.observed_seq // -1), observed_hash: (.locators.observed_hash // "")}]' "$dlf" 2>/dev/null || true)"
[ -n "$dl" ] || dl='[]'
local consumed
consumed="$(_wake_read_int "$STATE_DIR/consumed_seq" 0)"
local false_rows
false_rows="$(jq -c --argjson dl "$dl" --argjson consumed "$consumed" '
. as $row
| select(($row.observed_seq // -1) <= $consumed)
| select(($dl | map(select(
.kind == ($row.kind // "")
and .id == (($row.id // "") | tostring)
and .observed_seq == ($row.observed_seq // -1)
and .observed_hash == ($row.observed_hash // "")
)) | length) > 0)
' "$rec" 2>/dev/null || true)"
if [ -z "$false_rows" ]; then
echo "store.sh quarantine-audit: OK — no provably-false consumed-hash rows (rows without surviving dead-letter evidence are not provable and were not judged)"
return 0
fi
local n row
n="$(printf '%s\n' "$false_rows" | grep -c . || true)"
while IFS= read -r row; do
[ -n "$row" ] || continue
if [ "$repair" -eq 1 ]; then
echo "store.sh quarantine-audit: REPAIR — removing FALSE WITNESS row $row (matches a dead-lettered, never-delivered entry at/below consumed_seq=$consumed)" >&2
else
echo "FALSE WITNESS — consumed-hashes row $row matches a dead-lettered, never-delivered entry at/below consumed_seq=$consumed (the recorded consumption never happened)"
fi
done <<<"$false_rows"
if [ "$repair" -eq 0 ]; then
echo "store.sh quarantine-audit: $n provably-false row(s) found — run with --repair to remove exactly these rows"
return 1
fi
local kept
kept="$(jq -c --argjson dl "$dl" --argjson consumed "$consumed" '
. as $row
| select(
(($row.observed_seq // -1) > $consumed)
or (($dl | map(select(
.kind == ($row.kind // "")
and .id == (($row.id // "") | tostring)
and .observed_seq == ($row.observed_seq // -1)
and .observed_hash == ($row.observed_hash // "")
)) | length) == 0)
)
' "$rec" 2>/dev/null || true)"
if ! { printf '%s\n' "$kept" | grep -v '^[[:space:]]*$' || true; } | _atomic_write "$rec"; then
echo "store.sh quarantine-audit: consumed-hashes rewrite FAILED — record left untouched" >&2
exit 1
fi
echo "store.sh quarantine-audit: repaired — removed $n provably-false row(s); dead-letter ledger untouched (history)"
}
cmd_cursors() {
_wake_init_dir "$STATE_DIR"
local observed consumed depth
observed="$(_wake_read_int "$STATE_DIR/observed_seq" 0)"
consumed="$(_wake_read_int "$STATE_DIR/consumed_seq" 0)"
depth="$(grep -cv '^[[:space:]]*$' "$STATE_DIR/pending.jsonl" 2>/dev/null || echo 0)"
printf 'observed_seq=%s\nconsumed_seq=%s\npending_depth=%s\n' "$observed" "$consumed" "$depth"
}
main() {
[ $# -ge 1 ] || {
usage
exit 2
}
local cmd="$1"
shift
case "$cmd" in
init) cmd_init "$@" ;;
enqueue) cmd_enqueue "$@" ;;
drain) cmd_drain "$@" ;;
consume) cmd_consume "$@" ;;
quarantine-sync) cmd_quarantine_sync "$@" ;;
quarantine-audit) cmd_quarantine_audit "$@" ;;
cursors) cmd_cursors "$@" ;;
-h | --help | help) usage ;;
*)
echo "store.sh: unknown command '$cmd'" >&2
usage
exit 2
;;
esac
}
main "$@"