feat(scrape): per-target JSON summaries in multi-target loops

Validation --per-target and multi-target proof now pass --summary-file
per scrape so each target gets its own operator-*-<target>-UTC summary.

docs/plans/2026-06-04-076-feat-per-target-json-summary-plan.md

@@ -0,0 +1,63 @@
+---
+title: "feat: Per-target JSON summaries in multi-target loops"
+type: feat
+status: complete
+date: 2026-06-04
+origin: /lfg — plan 075 deferred per-target separate summary files in validation/proof loops
+---
+
+# feat: Per-target JSON summaries in multi-target loops
+
+## Summary
+
+When operator validation runs `--per-target` (all enabled targets) or operator proof scrapes multiple targets, pass `--summary-file` per target so each scrape writes `logs/<prefix>-<target>-<UTC>.summary.json` instead of overwriting a single combined path.
+
+## Problem Frame
+
+Plans 070–075 auto-export JSON summaries for single-target and documents-scrape runs. Multi-target loops still set one global `DCE_RUN_SUMMARY_FILE` tied to the teed log basename — only the last target's scrape wins on disk, and recovery from the combined log cannot disambiguate targets.
+
+## Requirements
+
+| ID | Requirement |
+|----|-------------|
+| R1 | `scripts/lib/scrape-summary-json.sh` exposes `per_target_summary_file LOG_DIR PREFIX TARGET` with sanitized target slug |
+| R2 | `run-operator-validation.sh --per-target` (no `--target`) skips global `DCE_RUN_SUMMARY_FILE`; each live scrape passes `--summary-file` |
+| R3 | Validation logs `Per-target JSON summary: <path>` before each live scrape |
+| R4 | `run-operator-proof.sh` with 2+ targets uses per-target `--summary-file`; single-target keeps log-basename summary |
+| R5 | Proof logs per-target summary path in the target loop when exporting JSON |
+| R6 | End-of-run log recovery skipped when per-target mode (files written directly by scrape) |
+| R7 | `scrape-summary-json-smoke.sh` asserts helper output shape |
+| R8 | `run-operator-validation-smoke.sh` multi-target dry-run still passes; optional fake-docker live per-target asserts two distinct `--summary-file` paths in subprocess output |
+| R9 | `DCE_MIN_FREE_MB=0 ./scripts/run-all-smokes.sh` → 23/23 |
+
+## Implementation Units
+
+### U1. Shared helper
+
+**Files:** `scripts/lib/scrape-summary-json.sh`, `scripts/tests/scrape-summary-json-smoke.sh`
+
+### U2. Operator validation
+
+**Files:** `scripts/run-operator-validation.sh`
+
+### U3. Operator proof
+
+**Files:** `scripts/run-operator-proof.sh`
+
+### U4. Docs
+
+**Files:** `docs/recurring-scrape-merge-readiness.md`, `docs/recurring-scrape-operator-checklist.md`
+
+## Verification
+
+```bash
+DCE_MIN_FREE_MB=0 ./scripts/run-all-smokes.sh
+```
+
+## Scope Boundaries
+
+### Deferred
+
+- Live KotOR catch-up on host
+- Tee full documents-scrape stdout to persistent log
+- Refresh PR #1538 body with plans 070–076 stamps

docs/recurring-scrape-merge-readiness.md

@@ -180,6 +180,8 @@ DCE_MIN_FREE_MB=0 ./scripts/run-operator-validation.sh \
 
 **Plan 075 (2026-06-04):** `run-documents-scrape.sh` auto-writes `logs/documents-scrape-<UTC>.summary.json` on live scrapes.
 
+**Plan 076 (2026-06-04):** Multi-target validation (`--per-target`) and proof loops write separate `logs/operator-*-<target>-<UTC>.summary.json` per scrape.
+
 **Disk:** ~65 GiB free on `/home` (2026-05-30); large channel merges still need headroom.
 
 ## CI note (fork PRs)

docs/recurring-scrape-operator-checklist.md

@@ -56,7 +56,8 @@ Salvage then incremental scrape:
 ./scripts/run-documents-scrape.sh --salvage-before-scrape --target NAME [--channel ID]
 ./scripts/run-operator-validation.sh --salvage-before-scrape --target NAME [--channel ID] --log-file logs/scrape.log
 ./scripts/run-operator-proof.sh --salvage-before-scrape --sync-gui --target NAME
-# When scraping, also writes logs/operator-proof-<UTC>.summary.json beside the proof log
+# When scraping one target, also writes logs/operator-proof-<UTC>.summary.json beside the proof log
+# All enabled targets: each gets logs/operator-proof-<target>-<UTC>.summary.json
 ```
 
 **KotOR yes_general** (`221726893064454144`): first catch-up after a 2021 archive cursor can take hours and may OOM; salvage preserved partials before retrying. Stop duplicate validation processes (MyBook vs Downloads checkouts share the same lock). `KotOR_discord_msgs` sets `container_memory: "8g"` in `scrape-targets.json` for single-target runs; override globally with `DCE_CONTAINER_MEMORY` in `scrape.env` if needed. Channel-scoped proof:

scripts/lib/scrape-summary-json.sh

@@ -33,3 +33,19 @@ recover_json_summary_if_missing() {
   [[ -s "$dest_file" ]] && return 1
   extract_json_summary_from_log "$run_log" "$dest_file"
 }
+
+sanitize_target_slug() {
+  local raw=$1
+  printf '%s' "$raw" | sed 's/[^A-Za-z0-9._-]/_/g'
+}
+
+per_target_summary_file() {
+  local log_dir=$1
+  local prefix=$2
+  local target=$3
+  local slug
+
+  [[ -n "$log_dir" && -n "$prefix" && -n "$target" ]] || return 1
+  slug=$(sanitize_target_slug "$target")
+  printf '%s/%s-%s-%s.summary.json' "$log_dir" "$prefix" "$slug" "$(date -u +%Y%m%dT%H%M%SZ)"
+}

scripts/run-operator-proof.sh

@@ -9,9 +9,11 @@ HANDOFF="$REPO_ROOT/scripts/operator-handoff.sh"
 DOCUMENTS="$REPO_ROOT/scripts/run-documents-scrape.sh"
 PROVE="$REPO_ROOT/scripts/prove-incremental-append.sh"
 SYNC_GUI="$REPO_ROOT/scripts/sync-token-from-gui.sh"
-LOG_DIR="$REPO_ROOT/logs"
+LOG_DIR="${DCE_LOG_DIR:-$REPO_ROOT/logs}"
 # shellcheck source=lib/scrape-run-plan.sh
 source "$SCRIPT_DIR/lib/scrape-run-plan.sh"
+# shellcheck source=lib/scrape-summary-json.sh
+source "$SCRIPT_DIR/lib/scrape-summary-json.sh"
 
 TARGET=""
 SYNC_GUI_FLAG=0
@@ -36,8 +38,9 @@ When --target is omitted, all enabled targets in the config are processed.
   --salvage-before-scrape  Merge stale .dce-temp exports before incremental scrape
   --log-file PATH          Append output to this file (default: logs/operator-proof-UTC.log)
 
-Logs append to logs/operator-proof-<timestamp>.log (or --log-file). When scraping, also writes
+Logs append to logs/operator-proof-<timestamp>.log (or --log-file). When scraping one target, also writes
-<log-basename>.summary.json unless DCE_RUN_SUMMARY_FILE is already set.
+<log-basename>.summary.json unless DCE_RUN_SUMMARY_FILE is already set. Multiple targets each get
+logs/operator-proof-<target>-<UTC>.summary.json.
 EOF
 }
 
@@ -121,13 +124,19 @@ main() {
   fi
 
   local export_json_summary=0
+  local per_target_summaries=0
+  if ((${#targets[@]} > 1)); then
+    per_target_summaries=1
+  fi
   if (( DRY_RUN == 0 && SALVAGE_ONLY == 0 )); then
     export_json_summary=1
     export DCE_RUN_SUMMARY_JSON=1
+    if (( per_target_summaries == 0 )); then
       if [[ -z "${DCE_RUN_SUMMARY_FILE:-}" ]]; then
         export DCE_RUN_SUMMARY_FILE="${log_file%.log}.summary.json"
       fi
     fi
+  fi
 
   local failed=0 succeeded=0 name
 
@@ -140,8 +149,12 @@ main() {
     printf 'config: %s\n' "$CONFIG_PATH"
     print_scrape_config_plan "$CONFIG_PATH" "Operator proof" "${targets[@]}"
     if (( export_json_summary )); then
+      if (( per_target_summaries )); then
+        printf 'JSON summaries: per-target under %s\n' "$(dirname "$log_file")"
+      else
         printf 'JSON summary file: %s\n' "${DCE_RUN_SUMMARY_FILE:-}"
       fi
+    fi
     printf 'started: %s\n\n' "$(date -u +%Y-%m-%dT%H:%M:%SZ)"
 
     if (( SYNC_GUI_FLAG == 1 )); then
@@ -168,6 +181,12 @@ main() {
       printf '\n--- Target: %s ---\n' "$name"
       local -a scrape_args=(--config "$CONFIG_PATH" --target "$name")
       scrape_args+=("${CHANNEL_ARGS[@]}")
+      if (( export_json_summary && per_target_summaries )); then
+        local summary_file
+        summary_file=$(per_target_summary_file "$(dirname "$log_file")" operator-proof "$name")
+        printf 'JSON summary file: %s\n' "$summary_file"
+        scrape_args+=(--summary-file "$summary_file")
+      fi
       if (( SALVAGE_BEFORE )); then
         if ! "$DOCUMENTS" "${scrape_args[@]}" --salvage-only; then
           failed=$((failed + 1))
@@ -189,7 +208,7 @@ main() {
     (( failed == 0 )) || exit 1
   } 2>&1 | tee "$log_file"
 
-  if (( export_json_summary )) && [[ -n "${DCE_RUN_SUMMARY_FILE:-}" ]]; then
+  if (( export_json_summary )) && (( per_target_summaries == 0 )) && [[ -n "${DCE_RUN_SUMMARY_FILE:-}" ]]; then
     # shellcheck source=lib/scrape-summary-json.sh
     source "$SCRIPT_DIR/lib/scrape-summary-json.sh"
     if recover_json_summary_if_missing "$log_file" "$DCE_RUN_SUMMARY_FILE"; then

scripts/run-operator-validation.sh

@@ -13,6 +13,8 @@ AUDIT_JSON="$REPO_ROOT/scripts/audit-archive-json.sh"
 LOCK_STATUS="$REPO_ROOT/scripts/scrape-lock-status.sh"
 # shellcheck source=lib/scrape-lock.sh
 source "$SCRIPT_DIR/lib/scrape-lock.sh"
+# shellcheck source=lib/scrape-summary-json.sh
+source "$SCRIPT_DIR/lib/scrape-summary-json.sh"
 
 DRY_RUN=0
 SKIP_SCRAPE=0
@@ -167,7 +169,10 @@ scrape_per_target() {
         continue
       fi
     fi
-    if ! run_step "run-documents-scrape ($name)" "$DOCUMENTS_SCRAPE" "${per_args[@]}"; then
+    local summary_file
+    summary_file=$(per_target_summary_file "$LOG_DIR" operator-validation "$name")
+    log_step "Per-target JSON summary: $summary_file"
+    if ! run_step "run-documents-scrape ($name)" "$DOCUMENTS_SCRAPE" "${per_args[@]}" --summary-file "$summary_file"; then
       log_step "Per-target failed: $name (scrape)"
       failures=$((failures + 1))
       if (( CONTINUE_ON_ERROR == 0 )); then
@@ -269,13 +274,19 @@ main() {
   fi
 
   local export_json_summary=0
+  local per_target_summaries=0
+  if (( PER_TARGET )) && [[ -z "$TARGET" ]]; then
+    per_target_summaries=1
+  fi
   if (( DRY_RUN == 0 && SKIP_SCRAPE == 0 && SALVAGE_ONLY == 0 )); then
     export_json_summary=1
     export DCE_RUN_SUMMARY_JSON=1
+    if (( per_target_summaries == 0 )); then
       if [[ -z "${DCE_RUN_SUMMARY_FILE:-}" ]]; then
         export DCE_RUN_SUMMARY_FILE="${LOG_FILE%.log}.summary.json"
       fi
     fi
+  fi
 
   local failures=0
 
@@ -291,8 +302,12 @@ main() {
       log_step "Enabled targets: $(enabled_targets | paste -sd, -)"
     fi
     if (( export_json_summary )); then
+      if (( per_target_summaries )); then
+        log_step "JSON summaries: per-target under $LOG_DIR"
+      else
         log_step "JSON summary file: ${DCE_RUN_SUMMARY_FILE:-}"
       fi
+    fi
     if (( SYNC_GUI_FLAG )); then
       run_step "sync-token-from-gui" "$SYNC_GUI" --force || failures=$((failures + 1))
     fi
@@ -326,7 +341,7 @@ main() {
   } 2>&1 | tee -a "$LOG_FILE"
   local pipeline_status=${PIPESTATUS[0]}
 
-  if (( export_json_summary )) && [[ -n "${DCE_RUN_SUMMARY_FILE:-}" ]]; then
+  if (( export_json_summary )) && (( per_target_summaries == 0 )) && [[ -n "${DCE_RUN_SUMMARY_FILE:-}" ]]; then
     # shellcheck source=lib/scrape-summary-json.sh
     source "$SCRIPT_DIR/lib/scrape-summary-json.sh"
     if recover_json_summary_if_missing "$LOG_FILE" "$DCE_RUN_SUMMARY_FILE"; then

scripts/tests/scrape-summary-json-smoke.sh

@@ -77,4 +77,16 @@ if extract_json_summary_from_log "$TMP_DIR/bad.log" "$OUT_FILE" 2>/dev/null; the
   exit 1
 fi
 
+path=$(per_target_summary_file "$TMP_DIR" operator-validation 'KotOR_discord_msgs')
+[[ "$path" == "$TMP_DIR/operator-validation-KotOR_discord_msgs-"*.summary.json ]] || {
+  printf 'ERROR: unexpected per_target_summary_file path: %s\n' "$path" >&2
+  exit 1
+}
+
+slug_path=$(per_target_summary_file "$TMP_DIR" operator-proof 'weird name!')
+[[ "$slug_path" == "$TMP_DIR/operator-proof-weird_name_-"*.summary.json ]] || {
+  printf 'ERROR: expected sanitized slug in path: %s\n' "$slug_path" >&2
+  exit 1
+}
+
 printf 'scrape-summary-json-smoke: ok\n'