[bug-yhg8dqypwmar] fix(check-naming): reject hidden provenance #4

Merged
architect merged 12 commits from architect/bug-yhg8dqypwmar/reject-hidden-provenance into main 2026-08-27 17:53:56 +00:00
5 changed files with 280 additions and 18 deletions
+14 -5
View File
@@ -37,6 +37,8 @@ jobs:
pr-title: ${{ github.event.pull_request.title }}
pr-author: ${{ github.event.pull_request.user.login }}
pr-body: ${{ github.event.pull_request.body }}
server-url: ${{ github.server_url }}
token: ${{ github.token }}
base-sha: ${{ github.event.pull_request.base.sha }}
head-sha: ${{ github.event.pull_request.head.sha }}
```
@@ -52,12 +54,14 @@ job — the step still fails, but the job cannot block the PR.
| `pr-title` | yes | PR title — `github.event.pull_request.title` |
| `pr-author` | no | PR author login — `github.event.pull_request.user.login`; `dfritz` is exempt |
| `pr-body` | yes | PR description — `github.event.pull_request.body` |
| `server-url` | yes | Gitea server URL — `github.server_url` |
| `token` | yes | Gitea Actions token — `github.token` |
| `base-sha` | yes | Base commit — `github.event.pull_request.base.sha` |
| `head-sha` | yes | Head commit — `github.event.pull_request.head.sha` |
## Behavior
The check validates four things for a Bug-backed Agent PR:
The check validates four things for every non-break-glass Agent PR:
1. **Branch form** — must be `<role>/bug-<id>/<kebab>` or `chore/<kebab>`.
Unknown roles, missing `bug-` segment, uppercase bug-ids, and empty
@@ -67,12 +71,17 @@ The check validates four things for a Bug-backed Agent PR:
`[bug-<id>] `. For a `chore` branch the title must have no `[bug-id]`
prefix. If both carry a bug-id they must match.
3. **Tracking and attribution**`## Tracking` contains both the literal
3. **Tracking and attribution** on Bug-backed work, `## Tracking` contains both the literal
`Fixes bug-<id>` automation token and the matching navigable
`https://agenthub.fritzlab.net/bug-<id>` URL. A separate `## Attribution`
section contains the canonical `Authored-By` product/model watermark.
`https://agenthub.fritzlab.net/bug-<id>` URL. Every PR has a separate
`## Attribution` section containing the canonical `Authored-By`
product/model watermark. The action asks Gitea to render the body with a
bounded 5-second connection and 15-second total wait, then checks visible
`<h2>` sections outside collapsed `<details>` content. Fenced, commented,
scripted, or collapsed copies do not satisfy the visible provenance contract.
4. **Commit attribution** — every commit in `base-sha..head-sha` ends with
4. **Commit attribution** — every commit in `base-sha..head-sha`, including
commits on `chore/` branches, ends with
the canonical `Authored-By` trailer, separated from the message body by a
blank line. The naming job must check out full history before this action.
+8
View File
@@ -29,6 +29,12 @@ inputs:
pr-body:
description: PR description — github.event.pull_request.body.
required: true
server-url:
description: Gitea server URL — github.server_url.
required: true
token:
description: Gitea Actions token — github.token.
required: true
base-sha:
description: Base commit SHA — github.event.pull_request.base.sha.
required: true
@@ -46,6 +52,8 @@ runs:
PR_TITLE: ${{ inputs.pr-title }}
PR_AUTHOR: ${{ inputs.pr-author }}
PR_BODY: ${{ inputs.pr-body }}
GITEA_SERVER_URL: ${{ inputs.server-url }}
GITEA_TOKEN: ${{ inputs.token }}
BASE_SHA: ${{ inputs.base-sha }}
HEAD_SHA: ${{ inputs.head-sha }}
run: bash "${{ github.action_path }}/check.sh"
+74 -11
View File
@@ -10,6 +10,8 @@ AUTHOR="${PR_AUTHOR:-}"
BODY="${PR_BODY:-}"
BASE="${BASE_SHA:-}"
HEAD="${HEAD_SHA:-}"
SERVER_URL="${GITEA_SERVER_URL:-}"
TOKEN="${GITEA_TOKEN:-}"
# Break-glass: dfritz is exempt from all naming checks.
if [ "${AUTHOR}" = "dfritz" ]; then
@@ -21,6 +23,64 @@ FAILED=0
BRANCH_KIND="invalid"
BRANCH_BUG=""
# Gitea's renderer is the visibility contract. Validate its output instead of
# maintaining a second Markdown parser in this action.
RENDERED_BODY=""
if [ -z "${SERVER_URL}" ] || [ -z "${TOKEN}" ]; then
echo "FAIL[check-naming]: server-url and token are required to render the PR body"
FAILED=1
elif ! RENDERED_BODY=$(printf '%s' "${BODY}" |
jq -Rs '{Text: ., Mode: "gfm"}' |
curl --fail --silent --show-error \
Review

Blocker: curl has neither a connection nor total timeout. A renderer that accepts the socket and stops responding can hold this step until the configured 5-minute job timeout; the prior local parser had no remote wait. Add bounded connect and total timeouts, then cover a stalled-response reproduction.

Blocker: `curl` has neither a connection nor total timeout. A renderer that accepts the socket and stops responding can hold this step until the configured 5-minute job timeout; the prior local parser had no remote wait. Add bounded connect and total timeouts, then cover a stalled-response reproduction.
--connect-timeout 5 \
--max-time 15 \
--header "Authorization: token ${TOKEN}" \
--header "Content-Type: application/json" \
--data-binary @- "${SERVER_URL%/}/api/v1/markdown"); then
echo "FAIL[check-naming]: Gitea could not render the PR body"
FAILED=1
fi
# A collapsed disclosure is valid supporting content, but provenance inside one
# is not visible by default. Remove only collapsed details subtrees; an open
# disclosure remains visible unless one of its ancestors is collapsed.
VISIBLE_BODY=$(printf '%s\n' "${RENDERED_BODY}" |
awk '
{
line=$0 "\n"
for (i=1; i<=length(line); i++) {
char=substr(line, i, 1)
if (in_tag) {
tag=tag char
if (char == ">") {
lower=tolower(tag)
Review

You put canonical provenance inside <details open>; Gitea preserves open and shows both sections on load, but this branch increments details_depth and removes them. The check exits 1 claiming the visible sections are missing. Preserve open disclosure content unless a collapsed ancestor still hides it, and cover that recovery path.

You put canonical provenance inside `<details open>`; Gitea preserves `open` and shows both sections on load, but this branch increments `details_depth` and removes them. The check exits 1 claiming the visible sections are missing. Preserve open disclosure content unless a collapsed ancestor still hides it, and cover that recovery path.
if (lower ~ /^<details([[:space:]>])/) {
attributes=lower
gsub(/"[^"]*"/, "", attributes)
parent_hidden=(details_depth > 0 && hidden[details_depth])
Review

Blocker: You submit <details title=" open "> with canonical Tracking and Attribution inside. Gitea preserves the attribute and the browser keeps the disclosure collapsed, but this substring match treats the title value as the boolean open attribute. Exact head returns check-naming: ok.

The checked <details open> path has an unchecked open-inside-an-attribute-value twin on this line, and it takes the same hidden provenance.

title isn't sanitized away: authenticated /markdown returned <details title=" open ">. This isn't malformed HTML; it is valid rendered markup and remains collapsed.

Parse attributes as tokens, then add this exact reproduction.

Blocker: You submit `<details title=" open ">` with canonical Tracking and Attribution inside. Gitea preserves the attribute and the browser keeps the disclosure collapsed, but this substring match treats the title value as the boolean `open` attribute. Exact head returns `check-naming: ok`. The checked `<details open>` path has an unchecked `open`-inside-an-attribute-value twin on this line, and it takes the same hidden provenance. `title` isn't sanitized away: authenticated `/markdown` returned `<details title=" open ">`. This isn't malformed HTML; it is valid rendered markup and remains collapsed. Parse attributes as tokens, then add this exact reproduction.
Review

Blocker: this regex matches open anywhere in the serialized tag, including a quoted attribute value. <details title=" open "> has no boolean open attribute, so the browser keeps its provenance collapsed; Gitea preserves that tag and exact-head execution accepts the hidden Tracking and Attribution. Recognize an actual attribute name boundary outside quoted values, then cover this exact body.

Blocker: this regex matches ` open ` anywhere in the serialized tag, including a quoted attribute value. `<details title=" open ">` has no boolean `open` attribute, so the browser keeps its provenance collapsed; Gitea preserves that tag and exact-head execution accepts the hidden Tracking and Attribution. Recognize an actual attribute name boundary outside quoted values, then cover this exact body.
Review

Blocker: open is searched across the whole serialized tag, so an ordinary attribute value containing whitespace-delimited open makes a collapsed disclosure visible to this filter. Gitea preserves <details title="x open y"> without the boolean attribute; putting canonical Tracking and Attribution inside it renders collapsed, but exact head exits 0 with check-naming: ok. Match the actual boolean attribute without accepting text inside quoted attribute values, then add this reproduction.

Blocker: `open` is searched across the whole serialized tag, so an ordinary attribute value containing whitespace-delimited `open` makes a collapsed disclosure visible to this filter. Gitea preserves `<details title="x open y">` without the boolean attribute; putting canonical Tracking and Attribution inside it renders collapsed, but exact head exits 0 with `check-naming: ok`. Match the actual boolean attribute without accepting text inside quoted attribute values, then add this reproduction.
details_depth++
hidden[details_depth]=(parent_hidden || attributes !~ /[[:space:]]open([[:space:]=>]|$)/)
}
else if (lower ~ /^<\/details([[:space:]>])/) {
if (details_depth > 0) {
delete hidden[details_depth]
details_depth--
}
}
else if (!hidden[details_depth]) printf "%s", tag
in_tag=0
tag=""
}
}
else if (char == "<") {
in_tag=1
tag=char
}
else if (!hidden[details_depth]) printf "%s", char
}
}
')
# ---- branch form ----
# <role>/bug-<id>/<kebab>
if echo "${BRANCH}" | grep -qE "^(dev|ux|ops|security|perf|architect|support)/bug-[a-z0-9]+/[a-z0-9][a-z0-9-]*$"; then
@@ -53,16 +113,16 @@ if [ "${BRANCH_KIND}" = "role-bug" ]; then
FAILED=1
fi
tracking=$(printf '%s\n' "${BODY}" | awk '
/^## Tracking[[:space:]]*$/ { in_section=1; next }
/^## / && in_section { exit }
tracking=$(printf '%s\n' "${VISIBLE_BODY}" | awk '
/<h2[^>]*>Tracking<\/h2>/ { in_section=1; next }
/<h2[^>]*>/ && in_section { exit }
in_section { print }
')
if [ -z "${tracking}" ]; then
echo "FAIL[check-naming]: PR body must contain a non-empty ## Tracking section"
FAILED=1
else
if ! printf '%s\n' "${tracking}" | grep -qE "(^|[[:space:]])Fixes[[:space:]]+${BRANCH_BUG}([^a-z0-9]|$)"; then
if ! printf '%s\n' "${tracking}" | grep -qE "(^|[[:space:]>])Fixes[[:space:]]+${BRANCH_BUG}([^a-z0-9]|$)"; then
echo "FAIL[check-naming]: ## Tracking must contain the literal token 'Fixes ${BRANCH_BUG}'"
FAILED=1
fi
@@ -72,12 +132,18 @@ if [ "${BRANCH_KIND}" = "role-bug" ]; then
fi
fi
attribution=$(printf '%s\n' "${BODY}" | awk '
/^## Attribution[[:space:]]*$/ { in_section=1; next }
/^## / && in_section { exit }
elif [ "${BRANCH_KIND}" = "chore" ] && [ -n "${TITLE_BUG}" ]; then
echo "FAIL[check-naming]: chore branch should not carry a [bug-id] title prefix"
FAILED=1
fi
if [ "${BRANCH_KIND}" != "invalid" ]; then
attribution=$(printf '%s\n' "${VISIBLE_BODY}" | awk '
/<h2[^>]*>Attribution<\/h2>/ { in_section=1; next }
/<h2[^>]*>/ && in_section { exit }
in_section { print }
')
watermark_re='^[-*]?[[:space:]]*Authored-By: .+ \(.+\) <noreply@[[:alnum:].-]+>$'
watermark_re='Authored-By: .+ \(.+\) <a href="mailto:noreply@[[:alnum:].-]+"[^>]*>noreply@[[:alnum:].-]+</a>'
if ! printf '%s\n' "${attribution}" | grep -qE "${watermark_re}"; then
echo "FAIL[check-naming]: ## Attribution must contain an Authored-By product/model watermark"
FAILED=1
@@ -118,9 +184,6 @@ if [ "${BRANCH_KIND}" = "role-bug" ]; then
echo "FAIL[check-naming]: base-sha and head-sha must be lowercase hexadecimal commit SHAs"
FAILED=1
fi
elif [ "${BRANCH_KIND}" = "chore" ] && [ -n "${TITLE_BUG}" ]; then
echo "FAIL[check-naming]: chore branch should not carry a [bug-id] title prefix"
FAILED=1
fi
if [ "${FAILED}" -eq 0 ]; then
Executable
+87
View File
@@ -0,0 +1,87 @@
#!/usr/bin/env bash
# Deterministic Gitea Markdown renderer stub for check.sh contract tests.
set -euo pipefail
connect_timeout=0
total_timeout=0
while [ "$#" -gt 0 ]; do
case "$1" in
--connect-timeout)
[ "${2:-}" = "5" ] || exit 2
connect_timeout=1
shift 2
;;
--max-time)
[ "${2:-}" = "15" ] || exit 2
total_timeout=1
shift 2
;;
*) shift ;;
esac
done
[ "${connect_timeout}" -eq 1 ] && [ "${total_timeout}" -eq 1 ] || exit 2
if printf '%s\n' "${PR_BODY}" | grep -Fq '[[stall-renderer]]'; then
exit 28
fi
if printf '%s\n' "${PR_BODY}" | grep -Fq '<!--'; then
exit 0
fi
printf '%s\n' "${PR_BODY}" | awk '
{
line=$0
lower=tolower(line)
pos=1
while (pos <= 4 && substr(line, pos, 1) == " ") pos++
char=substr(line, pos, 1)
run=0
if (char == "`" || char == "~") while (substr(line, pos + run, 1) == char) run++
rest=substr(line, pos + run)
if (in_fence) {
if (pos <= 4 && char == fence_char && run >= fence_run && rest ~ /^[[:blank:]]*$/) in_fence=0
next
}
if (in_script) {
if (lower ~ /<\/script[[:blank:]]*>/) in_script=0
next
}
if (pos <= 4 && run >= 3 && (char == "~" || index(rest, "`") == 0)) {
in_fence=1
fence_char=char
fence_run=run
next
}
if (lower ~ /^[ ]{0,3}<script([[:blank:]>])/) {
in_script=1
next
}
if (lower ~ /^[ ]{0,3}<\/details([[:blank:]>])/) {
print "</details>"
next
}
if (lower ~ /^[ ]{0,3}<details([[:blank:]>])/) {
attributes=lower
gsub(/"[^"]*"/, "", attributes)
if (attributes ~ /[[:blank:]]open([[:blank:]=>]|$)/) sub(/<details open>/, "<details open=\"\">", line)
print line
next
}
if (line ~ /^## Tracking[[:space:]]*$/) print "<h2>Tracking</h2>"
else if (line ~ /^## Attribution[[:space:]]*$/) print "<h2>Attribution</h2>"
else if (line ~ /^- Fixes[[:space:]]/) print "<li>" substr(line, 3) "</li>"
else if (line ~ /Authored-By:.*<noreply@[[:alnum:].-]+>/) {
email=line
sub(/^.*</, "", email)
sub(/>.*/, "", email)
sub(/ <noreply@[[:alnum:].-]+>.*/, "", line)
print line " <a href=\"mailto:" email "\">" email "</a>"
}
else {
gsub(/</, "\\&lt;", line)
gsub(/>/, "\\&gt;", line)
print line
}
}
'
+97 -2
View File
@@ -3,6 +3,7 @@
set -euo pipefail
SCRIPT="$(cd "$(dirname "$0")/.." && pwd)/check.sh"
TEST_BIN="$(cd "$(dirname "$0")" && pwd)/bin"
PASS=0
FAIL=0
FIXTURES=$(mktemp -d)
@@ -28,7 +29,8 @@ check() {
body=$(canonical_body "${bug:-bug-test}")
local out rc=0
out=$(cd "${FIXTURES}" && HEAD_BRANCH="$branch" PR_TITLE="$title" PR_AUTHOR="$author" \
PR_BODY="$body" BASE_SHA="$BASE" HEAD_SHA="$GOOD_HEAD" bash "$SCRIPT" 2>&1) || rc=$?
PR_BODY="$body" GITEA_SERVER_URL="https://code.test" GITEA_TOKEN="test-token" PATH="${TEST_BIN}:$PATH" \
BASE_SHA="$BASE" HEAD_SHA="$GOOD_HEAD" bash "$SCRIPT" 2>&1) || rc=$?
local got_lines=0
echo "$out" | grep -qE "^FAIL" && got_lines=1 || true
if [ "$rc" -eq "$want_fail" ] && [ "$got_lines" -eq "$want_fail" ]; then
@@ -46,7 +48,42 @@ check_contract() {
local out rc=0
out=$(cd "${FIXTURES}" && HEAD_BRANCH="architect/bug-x7k2m9/contract" \
PR_TITLE="[bug-x7k2m9] Enforce contract" PR_AUTHOR="architect" \
PR_BODY="$body" BASE_SHA="$base" HEAD_SHA="$head" bash "$SCRIPT" 2>&1) || rc=$?
PR_BODY="$body" GITEA_SERVER_URL="https://code.test" GITEA_TOKEN="test-token" PATH="${TEST_BIN}:$PATH" \
BASE_SHA="$base" HEAD_SHA="$head" bash "$SCRIPT" 2>&1) || rc=$?
if [ "$rc" -eq 1 ] && printf '%s\n' "$out" | grep -Fq "$diagnostic"; then
echo "PASS [$desc]"
PASS=$((PASS + 1))
else
echo "FAIL [$desc]: expected exit=1 and diagnostic '$diagnostic', got exit=$rc"
echo " output: $out"
FAIL=$((FAIL + 1))
fi
}
check_contract_pass() {
local desc="$1" body="$2" base="$3" head="$4"
local out rc=0
out=$(cd "${FIXTURES}" && HEAD_BRANCH="architect/bug-x7k2m9/contract" \
PR_TITLE="[bug-x7k2m9] Enforce contract" PR_AUTHOR="architect" \
PR_BODY="$body" GITEA_SERVER_URL="https://code.test" GITEA_TOKEN="test-token" PATH="${TEST_BIN}:$PATH" \
BASE_SHA="$base" HEAD_SHA="$head" bash "$SCRIPT" 2>&1) || rc=$?
if [ "$rc" -eq 0 ] && printf '%s\n' "$out" | grep -Fq "check-naming: ok"; then
echo "PASS [$desc]"
PASS=$((PASS + 1))
else
echo "FAIL [$desc]: expected exit=0 and check-naming: ok, got exit=$rc"
echo " output: $out"
FAIL=$((FAIL + 1))
fi
}
check_chore_contract() {
local desc="$1" body="$2" base="$3" head="$4" diagnostic="$5"
local out rc=0
out=$(cd "${FIXTURES}" && HEAD_BRANCH="chore/contract" \
PR_TITLE="Improve delivery contract" PR_AUTHOR="dev" \
PR_BODY="$body" GITEA_SERVER_URL="https://code.test" GITEA_TOKEN="test-token" PATH="${TEST_BIN}:$PATH" \
BASE_SHA="$base" HEAD_SHA="$head" bash "$SCRIPT" 2>&1) || rc=$?
if [ "$rc" -eq 1 ] && printf '%s\n' "$out" | grep -Fq "$diagnostic"; then
echo "PASS [$desc]"
PASS=$((PASS + 1))
@@ -82,6 +119,8 @@ check "bug-id mismatch" 1 "dev/bug-x7k2m9/fix-resize" "[bug-
# fail: chore branch with [bug-id] title prefix
check "chore with bug-id title" 1 "chore/bump-deps" "[bug-abc123] Bump deps" "dev"
check "role/bug Conventional title" 0 "dev/bug-x7k2m9/fix-resize" "[bug-x7k2m9] fix(hub): fix resize" "dev"
check "chore Conventional title" 0 "chore/bump-deps" "chore(deps): bump deps" "dev"
# fail: invalid branch forms
check "invalid — no role prefix" 1 "feature/foo-bar" "Add feature" "dev"
@@ -104,10 +143,66 @@ check_contract "tracking rejects wrong Bug URL" \
check_contract "attribution must be in its own section" \
$'## Tracking\n- Fixes bug-x7k2m9 — https://agenthub.fritzlab.net/bug-x7k2m9\n- Authored-By: Codex (GPT-5) <noreply@openai.com>' \
"$BASE" "$GOOD_HEAD" "## Attribution must contain"
check_contract "hidden provenance does not satisfy the visible contract" \
$'<!--\n## Tracking\n- Fixes bug-x7k2m9 — https://agenthub.fritzlab.net/bug-x7k2m9\n\n## Attribution\n- Authored-By: Codex (GPT-5) <noreply@openai.com>\n-->' \
"$BASE" "$GOOD_HEAD" "PR body must contain a non-empty ## Tracking section"
check_contract "comment removal cannot synthesize section headings" \
$'<!-- hidden -->## Tracking\n- Fixes bug-x7k2m9 — https://agenthub.fritzlab.net/bug-x7k2m9\n\n<!-- hidden -->## Attribution\n- Authored-By: Codex (GPT-5) <noreply@openai.com>' \
"$BASE" "$GOOD_HEAD" "PR body must contain a non-empty ## Tracking section"
check_contract "four-space indented backticks do not expose comments" \
$' ````\n<!--\n## Tracking\n- Fixes bug-x7k2m9 — https://agenthub.fritzlab.net/bug-x7k2m9\n\n## Attribution\n- Authored-By: Codex (GPT-5) <noreply@openai.com>\n-->' \
"$BASE" "$GOOD_HEAD" "PR body must contain a non-empty ## Tracking section"
check_contract "unequal backtick runs do not expose comments" \
$'`<!--``\n## Tracking\n- Fixes bug-x7k2m9 — https://agenthub.fritzlab.net/bug-x7k2m9\n\n## Attribution\n- Authored-By: Codex (GPT-5) <noreply@openai.com>\n-->' \
"$BASE" "$GOOD_HEAD" "PR body must contain a non-empty ## Tracking section"
check_contract "invalid backtick fence info does not expose comments" \
$'```html`oops\n<!--\n## Tracking\n- Fixes bug-x7k2m9 — https://agenthub.fritzlab.net/bug-x7k2m9\n\n## Attribution\n- Authored-By: Codex (GPT-5) <noreply@openai.com>\n-->' \
"$BASE" "$GOOD_HEAD" "PR body must contain a non-empty ## Tracking section"
check_contract "invalid fence closer does not expose comments" \
$'```html\n```oops\n```\n<!--\n## Tracking\n- Fixes bug-x7k2m9 — https://agenthub.fritzlab.net/bug-x7k2m9\n\n## Attribution\n- Authored-By: Codex (GPT-5) <noreply@openai.com>\n-->' \
"$BASE" "$GOOD_HEAD" "PR body must contain a non-empty ## Tracking section"
check_contract "fences inside comments do not expose provenance" \
$'<!--\n```html\n## Tracking\n- Fixes bug-x7k2m9 — https://agenthub.fritzlab.net/bug-x7k2m9\n\n## Attribution\n- Authored-By: Codex (GPT-5) <noreply@openai.com>\n-->' \
"$BASE" "$GOOD_HEAD" "PR body must contain a non-empty ## Tracking section"
check_contract "escaped backticks do not hide a comment opener" \
$'\\`<!--\\`\n## Tracking\n- Fixes bug-x7k2m9 — https://agenthub.fritzlab.net/bug-x7k2m9\n\n## Attribution\n- Authored-By: Codex (GPT-5) <noreply@openai.com>\n-->' \
"$BASE" "$GOOD_HEAD" "PR body must contain a non-empty ## Tracking section"
check_contract "fenced provenance does not satisfy the visible contract" \
$'```\n```oops\n## Tracking\n- Fixes bug-x7k2m9 — https://agenthub.fritzlab.net/bug-x7k2m9\n\n## Attribution\n- Authored-By: Codex (GPT-5) <noreply@openai.com>' \
"$BASE" "$GOOD_HEAD" "PR body must contain a non-empty ## Tracking section"
check_contract "indented fence closer does not expose provenance" \
$'```\n ```\n## Tracking\n- Fixes bug-x7k2m9 — https://agenthub.fritzlab.net/bug-x7k2m9\n\n## Attribution\n- Authored-By: Codex (GPT-5) <noreply@openai.com>\n```' \
"$BASE" "$GOOD_HEAD" "PR body must contain a non-empty ## Tracking section"
check_contract_pass "fenced code examples remain available" \
$'```html\n<script>example only</script>\n```\n\n## Tracking\n- Fixes bug-x7k2m9 — https://agenthub.fritzlab.net/bug-x7k2m9\n\n## Attribution\n- Authored-By: Codex (GPT-5) <noreply@openai.com>' \
"$BASE" "$GOOD_HEAD"
check_contract "details cannot collapse provenance" \
$'<details><summary>Release notes</summary>\n\n## Tracking\n- Fixes bug-x7k2m9 — https://agenthub.fritzlab.net/bug-x7k2m9\n\n## Attribution\n- Authored-By: Codex (GPT-5) <noreply@openai.com>\n</details>' \
"$BASE" "$GOOD_HEAD" "PR body must contain a non-empty ## Tracking section"
check_contract_pass "open details preserve visible provenance" \
$'<details open><summary>Release notes</summary>\n\n## Tracking\n- Fixes bug-x7k2m9 — https://agenthub.fritzlab.net/bug-x7k2m9\n\n## Attribution\n- Authored-By: Codex (GPT-5) <noreply@openai.com>\n</details>' \
"$BASE" "$GOOD_HEAD"
check_contract "open details inside collapsed details remain hidden" \
$'<details><summary>Release notes</summary>\n<details open><summary>Visible only after expansion</summary>\n\n## Tracking\n- Fixes bug-x7k2m9 — https://agenthub.fritzlab.net/bug-x7k2m9\n\n## Attribution\n- Authored-By: Codex (GPT-5) <noreply@openai.com>\n</details>\n</details>' \
"$BASE" "$GOOD_HEAD" "PR body must contain a non-empty ## Tracking section"
check_contract "open text in another details attribute remains collapsed" \
$'<details title="x open y"><summary>Release notes</summary>\n\n## Tracking\n- Fixes bug-x7k2m9 — https://agenthub.fritzlab.net/bug-x7k2m9\n\n## Attribution\n- Authored-By: Codex (GPT-5) <noreply@openai.com>\n</details>' \
"$BASE" "$GOOD_HEAD" "PR body must contain a non-empty ## Tracking section"
check_contract_pass "unrelated collapsed details remain available" \
$'<details><summary>Logs</summary>\n\nSupporting output\n</details>\n\n## Tracking\n- Fixes bug-x7k2m9 — https://agenthub.fritzlab.net/bug-x7k2m9\n\n## Attribution\n- Authored-By: Codex (GPT-5) <noreply@openai.com>' \
"$BASE" "$GOOD_HEAD"
check_contract "script cannot suppress provenance" \
$'<script>\n## Tracking\n- Fixes bug-x7k2m9 — https://agenthub.fritzlab.net/bug-x7k2m9\n\n## Attribution\n- Authored-By: Codex (GPT-5) <noreply@openai.com>\n</script>' \
"$BASE" "$GOOD_HEAD" "PR body must contain a non-empty ## Tracking section"
check_contract "stalled renderer fails closed at the curl timeout" \
"$(canonical_body bug-x7k2m9)"$'\n[[stall-renderer]]' \
"$BASE" "$GOOD_HEAD" "Gitea could not render the PR body"
git -C "${FIXTURES}" commit --allow-empty -q -m "unwatermarked change"
BAD_HEAD=$(git -C "${FIXTURES}" rev-parse HEAD)
check_contract "agenthub 779 commits reject missing watermark" "$BODY" "$GOOD_HEAD" "$BAD_HEAD" "must end with an Authored-By"
check_chore_contract "chore requires PR attribution" "" "$BASE" "$GOOD_HEAD" "## Attribution must contain"
check_chore_contract "chore commits require watermark" "$(canonical_body bug-unused)" "$GOOD_HEAD" "$BAD_HEAD" "must end with an Authored-By"
git -C "${FIXTURES}" commit --allow-empty -q -m $'misplaced trailer\nAuthored-By: Codex (GPT-5) <noreply@openai.com>'
MISPLACED_HEAD=$(git -C "${FIXTURES}" rev-parse HEAD)