fix(review-loop-run): CR-10 — scope exits only on headings shallower-or-equal to start depth (8c865eb4-7fd1-4a8d-b51d-04d020ba41c0)

specs/review-loop-run.spec.md

@@ -58,7 +58,7 @@ review-loop-run --help
 
 `counts` parses the review's own count-by-severity block first, never bare numbers scattered through the file (a finding heading like "## Finding 3 — HTTP 404 on ..." or "### MEDIUM: ..." must not be misread as a count):
 
-1. **Locate the scope.** Find the *last* line matching `/count.*severity|severity.*count|summary/i` and take from that heading up to the next `#`-heading (or EOF). If no such heading exists, the scope is the last 40 lines of the file.
+1. **Locate the scope.** Find the *last* line matching `/count.*severity|severity.*count|summary/i` and take from that heading up to the next `#`-heading of the same or shallower depth (or EOF). If no such heading exists, the scope is the last 40 lines of the file. CR-10 (bug 8c865eb4): a deeper sub-heading (e.g. `###` under a `##` section) is part of the section and must NOT terminate the scope — a count block written as `## Count by Severity` followed by `### CRITICAL: 0` sub-headings keeps all four severity counts in scope.
 2. **Extract per severity, within scope only.** For each of CRITICAL/HIGH/MEDIUM/LOW, take the *last* match in scope of any of the accepted forms below. A severity with no match in scope is 0 for this pass. Markdown emphasis markers around/inside the label are stripped before matching, so `**SEV:**` also matches. The accepted forms are (bug 5352fe72 — *Revokes prior text:* the earlier form list required a bare-integer table cell and allowed `SEV: n` to match mid-prose; both are superseded here):
    - **CR-7 Table row:** `| SEV | n |` or `| SEV | n (<annotation>) |` — the value cell may carry trailing text after the integer (e.g. `| HIGH | 1 (H-R3-1: ...) |`); the *leading* run of digits in the value cell is the count (thousands separators, decimals, and exponents are not interpreted — `1,000` reads as 1; counts are small integers in practice). A cell whose text does not begin with an integer does not match.
    - **CR-8 Declaration line:** `SEV: n` / `SEV = n` / `- SEV: n` / `**SEV**: n` / `SEV (n)` / `n SEV` — accepted only when the line is a *count declaration line*: after stripping `*` emphasis markers and any leading list-bullet (`-`, `*`, `+`) or heading (`#`) prefix, the entire line consists of one or more such severity-count tokens separated only by spaces, commas, or semicolons, with nothing else. Prose lines that merely mention a count (e.g. `MEDIUM=404 seen on 2026-09-13` inside a quoted verdict) MUST NOT match — the trailing prose disqualifies the line. Exception: a short label parenthetical matching `([A-Z][0-9]+)` (e.g. `- CRITICAL: 1 (C1)`) is stripped before the declaration-only check and does not disqualify the line. Deliberately out of scope: `_`/`__` emphasis stripping, blockquote (`>`) and numbered-list prefixes, and any other parenthetical annotation on declaration lines (finding IDs like `(H-R3-1)` read as prose and are rejected; table cells are the first-class summary field).
@@ -66,9 +66,9 @@ review-loop-run --help
 4. **CR-9 Suspect derived zero (bug 5352fe72).** Applies only when step 3 actually ran (found_any == 0; an explicit count block yielding C=0 H=0 is trusted and never suspect). If the derived fallback yields CRITICAL=0 and HIGH=0 but the file contains a heading line matching `^#{1,6}\s*(\*\*)?(CRITICAL|HIGH)\b` (case-insensitive) anywhere in the file — not restricted to the count-block scope — (a severity section header the derived regex cannot count, e.g. bare `## CRITICAL`), the result is untrustworthy: append ` (suspect)` instead of ` (derived)` to the output and exit 4 (fail closed) regardless of the printed counts. Fenced code blocks are NOT excluded from this scan: a false suspect on a file quoting `## CRITICAL` in a fence is fail-closed (a human reads the file), which is the preferred failure direction. Suspect detection is restricted to CRITICAL/HIGH because only they gate the merge. Suspect and genuine C+H>0 share exit 4 deliberately — the consumer action (another round / human read) is identical; distinguish via the `(suspect)` marker.
 5. Missing severity → 0. An empty result file prints `CRITICAL=0 HIGH=0 MEDIUM=0 LOW=0` and exits 0. Output stays `CRITICAL=n HIGH=n MEDIUM=n LOW=n` (plus the optional trailing `(derived)` or `(suspect)` marker); exit 4 iff CRITICAL+HIGH>0 or the result is suspect, else 0.
 
-Why (CR-7/CR-8): review models routinely annotate summary-table cells with finding IDs, and verify verdicts quote historic counts in prose; both produced silent 0/0 mis-reports on 2026-09-16 that defeated the /review-loop merge gate. Why (CR-9): a derived 0/0 on a file that visibly has CRITICAL/HIGH section headers means the parser failed, not that the review is clean — the gate must fail closed.
+Why (CR-7/CR-8): review models routinely annotate summary-table cells with finding IDs, and verify verdicts quote historic counts in prose; both produced silent 0/0 mis-reports on 2026-09-16 that defeated the /review-loop merge gate. Why (CR-9): a derived 0/0 on a file that visibly has CRITICAL/HIGH section headers means the parser failed, not that the review is clean — the gate must fail closed. Why (CR-10): a count block written as an h2 with h3 severity subsections (a common pattern in `## Count by Severity` followed by `### CRITICAL: 0`) was being mis-scope-terminated at the first h3, leaving scope empty, firing the derived fallback, and counting the `### CRITICAL: 0` heading itself as a CRITICAL finding — defeating the merge gate on genuinely clean reviews (bug 8c865eb4).
 
-Fixtures: `tests/fixtures/review-loop-run/{bullet-list,table,inline-bold,heading-numbers,no-count-block,annotated-table-cell,prose-historic-quote,suspect-derived}.md` cover, respectively: a bullet-list count block, a markdown-table count block, an inline `**HIGH**: 2` style block, a file with "HTTP 404" and a bare number in headings alongside a correct trailing count-by-severity table (regression case for the 2026-09-13 MEDIUM=404/HIGH=11 mis-parse), and a file with no count block at all (derived fallback from finding headings) — plus the three new fixtures below.
+Fixtures: `tests/fixtures/review-loop-run/{bullet-list,table,inline-bold,heading-numbers,no-count-block,annotated-table-cell,prose-historic-quote,suspect-derived,h3-subsections,h2-terminates-scope}.md` cover, respectively: a bullet-list count block, a markdown-table count block, an inline `**HIGH**: 2` style block, a file with "HTTP 404" and a bare number in headings alongside a correct trailing count-by-severity table (regression case for the 2026-09-13 MEDIUM=404/HIGH=11 mis-parse), and a file with no count block at all (derived fallback from finding headings) — plus the CR-7/CR-8/CR-9 fixtures — plus the CR-10 fixtures (`h3-subsections.md`: count block at `##` with each severity value at `###`; `h2-terminates-scope.md`: count block at `##` with a real `##` after it that must terminate scope and exclude a stray `### HIGH: 99` underneath).
 
 Scenarios / test matrix (bug 5352fe72; test handles in `tests/test-review-loop-run.sh`):
 
@@ -81,6 +81,8 @@ Scenarios / test matrix (bug 5352fe72; test handles in `tests/test-review-loop-r
 | CR-9 | `counts suspect derived zero exits 4` | same fixture | — | 4 |
 | CR-9 | `counts suspect derived zero case insensitive` | `suspect-derived-lower.md`: same shape as `suspect-derived.md` but header is `## critical` (lowercase) | contains ` (suspect)` | 4 |
 | CR-8 | `counts declaration line annotation rejected` | `declaration-with-annotation.md`: `## Count by severity` then no table, only the bullet line `- HIGH: 1 (H-R3-1)` and no other severity lines | HIGH must not be 1 (the parenthetical disqualifies the declaration line; the file then has no count values, so derived/suspect rules apply to whatever remains) | — |
+| CR-10 | `counts h3 subsections parse as zero` | `h3-subsections.md`: `## Count by Severity` (h2) followed by `### CRITICAL: 0`, `### HIGH: 0`, `### MEDIUM: 0`, `### LOW: 0` (all h3) — no table, no body declarations | `CRITICAL=0 HIGH=0 MEDIUM=0 LOW=0` | 0 |
+| CR-10 | `counts h2 still terminates scope` | `h2-terminates-scope.md`: `## Count by Severity` (h2) with a trailing table `\| CRITICAL \| 0 \|` ... `\| LOW \| 0 \|`, then a `## Next Section` (h2, same depth) and under it `### HIGH: 99` | `CRITICAL=0 HIGH=1 MEDIUM=2 LOW=0` (the `### HIGH: 99` under the second `##` must be ignored — only the table counts) | 4 |
 
 ## Templates (per `--kind`)