fix: pin autofix agent to claude-sonnet-5 via custom:9router provider

- _hermes_api_post sends X-Hermes-Session-Id so each fork sync uses a
  fresh gateway transcript (was: derived session reused 200k-token history
  across upstream tips, making later runs pay growing context)
- SYNC_CLAUDE_TIMEOUT 2700→3600: a fresh session needs ~25min/120 calls
  to resolve 17 files + verify + commit; 2700s cut the HTTP call while the
  agent was still committing
- salvage-on-timeout: when the agent call ends early (timeout/transport)
  but the merge is already committed (MERGE_HEAD gone), finish+push it
  instead of aborting — verified live: 17 conflicts resolved by agent,
  push ok, fork 27 ahead / 0 behind
- _sync_finish_merge blocks committing files that still carry conflict
  markers (guard against git add of unresolved files)
- tests: 68/68 (session header, salvage completed merge, abort unfinished,
  marker guard; fake-leak hardening in _install_git_fake)

.hermes/plans/2026-09-21-queue-worker-resiliency.md

@@ -0,0 +1,67 @@
+# Queue Worker Resiliency — Skip on Error + Conflict Auto-fix + Deduped Notify
+
+## Goal
+Make pr-queue-worker.py resilient: no infinite looping on infra errors,
+auto-resolve merge conflicts via Claude Code, and notify Discord about skips
+exactly once (no repeated spam).
+
+## Scope
+- `scripts/pr-queue-worker.py` only (cron worker, canonical in repo)
+- State persisted in `/tmp/pr-queue-fix-state.json` (already exists)
+
+## Changes
+
+### A. Skip-on-error (no loop) — fix-state gains skip reasons
+Current `FIX_STATE_FILE` shape: `{repo: {pr: head_sha}}` (fixed map).
+Extend value to either a string SHA (fixed) or a dict for skip:
+  `{repo: {pr: {"fixed_sha": "<sha>", "skip_reason": "<reason>", "skip_sha": "<sha>"}}}`
+- `run_ai_fix` failure kinds:
+  - CLI not found / not executable → **infra error** → mark skipped, notify once
+  - timeout → mark skipped (Claude hung), notify once
+  - "Claude ran but no push" → NOT infra error (Claude worked, nothing to fix)
+    → allow retry next tick (cheap) OR mark fixed? — decide: keep retry (this
+    is often a transient "no changes needed" state, but re-running every tick
+    is exactly the loop user complains about) → **mark skipped too** (reason
+    "no changes produced"), notify once, so it stops looping. User can re-open.
+  - clone failed → transient (network) → retry next tick (NOT skip) — but cap:
+    track clone-fail attempts, after 3 → skip w/ notify.
+- `already_fixed` semantics: returns True also for skip state (same SHA) so we
+  don't re-run OR re-notify.
+- New helper `mark_skip(state, repo, pr, sha, reason)` + `get_skip(state,...)`.
+
+### B. Merge conflict → Claude Code resolve
+- When `mergeable is False` (GitHub says conflict) OR merge returns 409:
+  - If not already attempted at this SHA (fix-state): run `run_ai_fix` (its
+    prompt already includes "merge base + resolve conflicts intelligently").
+  - If fix returns True → continue to re-check mergeability next iteration
+    (head SHA changed; loop naturally proceeds).
+  - If fix returns False (error/no push) → mark skip + notify once.
+- Prevent infinite conflict-fix loop: one AI attempt per head SHA (fix-state
+  `fixed_sha` covers it). If Claude pushes but conflict persists → next tick
+  `mergeable is False` again but fix-state SHA = old → we'd re-run. Fix:
+  mark conflict-resolve-attempted in state with the head SHA and the *result*
+  ("conflict-fix-pushed" / "conflict-fix-failed"); skip re-run on same SHA.
+
+### C. Deduped Discord notification for skips
+- State file gains `notified: {repo: {pr: {"reason": sha}}}` (or embed in skip
+  entry: when we notify, record sha; skip notify if same sha+reason already
+  notified).
+- Notification: one embed per skip reason, listing PRs:
+  `⚠️ Skipped: #19 (dependabot) — Clode Code CLI not found` — only on first
+  occurrence per PR+reason, not every 5-min tick.
+- The full run report (flush_log) still goes out each tick — that's the
+  periodic status, fine. The dedupe applies to *skip-specific* notifications.
+
+## Files touched
+- `scripts/pr-queue-worker.py`
+
+## Verification
+- Unit-ish: run worker with a fake PR? Hard (needs GitHub). Instead:
+  - py_compile
+  - dry-run logic test: monkeypatch run_ai_fix to return False with
+    "Claude Code CLI not found" → assert mark_skip called once, second run
+    skips re-attempt, notify once (check state file).
+  - conflict path: monkeypatch mergeable False + run_ai_fix True → assert
+    conflict-fix-attempt recorded once.
+- Live: after deploy, open a tiny conflicting PR (or use an existing one) and
+  watch one skip notification, then verify no repeat next tick.

.hermes/plans/2026-09-21-upstream-auto-sync.md

@@ -0,0 +1,101 @@
+# Upstream Auto-Sync — Auto Pull + Merge for Fork Repos
+
+Status: implemented in `scripts/pr-queue-worker.py` (2026-09-21).
+User decisions: interval **1 hour**, sync PRs **do** get the Claude Code auto-fix.
+
+## Goal
+For every repo the GitHub App is installed on whose GitHub metadata says
+`fork: true`, pull the commits the upstream (parent) repo has that the fork lacks
+and MERGE them into the fork's default branch — with conflict resolution, CI
+verification and deduped notifications. No new cron/service: the existing
+`pr-queue-worker.py` tick (every 5 min) runs it, gated by a per-repo interval.
+
+## Fork state at build time (live)
+| Fork | Parent | To merge | Fork divergence |
+|---|---|---|---|
+| `asepharyana/shiro-neko` | `zakirkun/shiro-neko` | 4 | 26 |
+| `asepharyana/hermes-agent-mission-control` | `sharbelxyz/hermes-agent-mission-control` | 0 | 8 |
+
+Both default branches are unprotected; the real shiro-neko merge conflicts in 14
+files (`src/tools.ts`, `src/ui/App.tsx`, `src/tests…`).
+
+## Design decisions (with reasons)
+1. **Merge, never rebase** — preserves fork history/divergence (skill
+   `fork-upstream-sync`).
+2. **Inside `pr-queue-worker.py`** — the worker already owns the atomic cron
+   lock, installation tokens and Discord plumbing; the sync is STEP 0 of the same
+   tick, bounded to `max_per_tick = 2` forks, oldest-attempt-first so the budget
+   rotates fairly.
+3. **1h interval per repo** — the compare API is checked every tick (cheap), a
+   merge attempt only when the interval elapsed AND the upstream tip changed
+   (`last_attempt_sha`), so a failed/skipped sync is not retried every 5 minutes.
+4. **Conflicted merges go to Claude Code** — `resolve_conflicts: true`. The
+   prompt encodes the `fork-upstream-sync` rules (merge hunks by hand, never
+   wholesale `--ours/--theirs`, strip UTF-8 BOM, run the repo's typecheck+tests
+   before committing) plus the `merge-reconciler` impartiality contract (classify
+   every hunk: disjoint-intent / same-question-different-answer / superseded;
+   change nothing outside conflict markers; report every decision).
+   Claude never pushes — the harness pushes.
+5. **Clean merges get a quality pass** — `ai_fix_after_merge: true` runs one
+   Claude Code pass over the merged files and commits
+   `fix: auto-fix code quality [skip ci]`. On the PR path the normal worker AI
+   fix applies (user decision), so sync PRs are treated like any other PR.
+6. **Push path: owner PAT first, App token second** — the App has
+   `contents:write` but NOT `workflows:write`, and the shiro-neko merge touches
+   `.github/workflows/*`, so an App-token push is rejected. Clones use the App
+   token; pushes use the gh CLI PAT (`_fetch_gh_token()`).
+7. **Protected branch → PR path** — App tokens get 403 (not 404) on the
+   branch-protection endpoint, so protection is detected from the PUSH result
+   (GH006 / "protected branch" / required-status-check markers) and falls back to
+   pushing a `upstream-sync-<ts>` branch + opening a PR that the normal pipeline
+   finishes. Duplicate PRs are avoided by scanning open PRs for that head prefix.
+8. **CI verify with sha-guarded auto-revert** — `verify_ci: true`. After a direct
+   push, later ticks check the fork's CI at our merge sha; if it is still the tip
+   and CI failed, the branch is force-pushed back to `pre_merge_sha` and Discord
+   is notified. Never reverts when a human pushed on top; never applies to the
+   protected/PR path; watch stops after `verify_ci_max_age_h = 6h`.
+9. **Discord**: sync events go to the same `pr-agent-ops` webhook as the run
+   reports (synced / PR opened / reverted / skipped-once).
+10. **`merge_pr` PAT fallback** — a PR merge that changes workflow files is also
+    a workflow-file push, so a 403 on the App merge retries with the PAT.
+
+## Scope
+- `scripts/pr-queue-worker.py` — new `# Upstream Fork Auto-Sync` section (config,
+  discovery, compare, merge, conflict-resolve, push, PR path, verify/revert,
+  orchestrator) + STEP 0 in `main()` + CLI flags.
+- `scripts/test_pr_queue_sync.py` — new: 46 assertions over the orchestration.
+- State: `/tmp/pr-queue-sync-state.json`; workdirs `/tmp/pr-queue-sync-work/`.
+- No changes to `server/` (Bun), systemd units or the cron list.
+
+## State shape
+```json
+{"owner/fork": {
+  "last_sync_ts": 0, "last_attempt_sha": "", "last_merged_upstream_sha": "",
+  "skip_reason": "", "notified": false,
+  "pending_verify": {"sha": "", "pre_merge_sha": "", "branch": "main", "pushed_at": 0}
+}}
+```
+
+## CLI (manual/dev)
+```bash
+python3 scripts/pr-queue-worker.py --sync-status
+python3 scripts/pr-queue-worker.py --sync-only asepharyana/shiro-neko --dry
+python3 scripts/pr-queue-worker.py --sync-only asepharyana/shiro-neko
+```
+`--dry` runs the whole flow (clone, merge, Claude conflict resolution) and stops
+before pushing, leaving the prepared workdir in `/tmp/pr-queue-sync-work/<repo>`.
+
+## Verification
+- `python3 -m py_compile` clean.
+- `python3 scripts/test_pr_queue_sync.py` → 46/46 (gating, clean merge, conflict
+  resolution, failed resolution skip+dedupe, protected→PR, CI green/red/foreign-
+  commit/running, fork discovery, push-error classification, config override).
+- Live dry run against the real fork: clone + upstream fetch + conflicted merge +
+  Claude Code resolution, verified with the repo's own `bun run typecheck`/`bun test`.
+- Live production: the 5-minute cron picks it up on the next tick after the push
+  (the cron wrapper ff-only pulls this repo and execs the repo copy).
+- Regression guard for the bug the dry run caught: compare head ref must be
+  `{owner}:{branch}` — a full `owner/repo:branch` head 404s.
+
+## Out of scope
+- Syncing non-default branches; pushing fork→upstream; scheduled rebase option.

scripts/README.md

@@ -8,13 +8,50 @@ repos where the PR-Agent GitHub App is installed and drives the full lifecycle:
 2. **Toolchain pin guard** → closes dependabot PRs that bump pinned toolchain
    majors (see `TOOLCHAIN_PINS` map — typescript/eslint/@tsparticles/…) instead
    of waiting on them forever
-3. **AI auto-fix** → runs Claude Code (`-p`) on the PR head for up to
+3. **AI auto-fix** → runs the Hermes agent via the local gateway API server
-   `AI_FIX_MAX_TURNS` turns, then pushes the fix
+   (`POST /v1/chat/completions` on `127.0.0.1:8642`, `API_SERVER_KEY`) on the PR
-4. **Safety analysis** → parses the review body for security/major-issue
+   head for up to `AI_FIX_MAX_TURNS` turns, commits locally, then the worker
+   pushes the fix
+5. **Safety analysis** → parses the review body for security/major-issue
    blockers; score must be ≥ 6/10
-5. **CI gate** → waits for the required check to pass (closes stale dependabot
+6. **CI gate** → waits for the required check to pass (closes stale dependabot
    PRs stuck failing CI for > `STALE_CI_CLOSE_DAYS`)
-6. **Approve + merge**
+7. **Approve + merge**
+
+## Upstream Fork Auto-Sync
+
+Since 2026-09-21 the same 5-minute tick also syncs every repo in the App
+installation whose GitHub metadata says `fork: true`: new upstream (parent)
+commits are **merged** (never rebased) into the fork's default branch, gated by
+a per-repo interval (default **1 hour**; `UPSTREAM_SYNC` config block).
+
+- **Conflicted merge** → the Hermes agent (via the gateway API server) resolves
+  it (merge-reconciler rules: merge hunks by hand, never wholesale
+  `--ours/--theirs`, run the repo's own typecheck/tests before committing). The
+  agent never pushes — the harness does.
+- **Clean merge** → one Hermes quality pass over the merged files, committed as
+  `fix: auto-fix code quality [skip ci]`.
+- **Protected default branch** → detect from the push result (GH006 /
+  required-status-check) and fall back to opening an `upstream-sync-*` PR that
+  the normal pipeline (review → AI fix → CI → approve → merge) finishes.
+- **CI safety** → after a direct push the worker verifies the fork's CI at our
+  merge commit; a red CI at OUR merge sha (still the tip, no human commits on
+  top) force-reverts to the pre-merge sha. Watch stops after 6 h.
+- **Push credentials** → owner PAT (gh CLI) first because the App lacks
+  `workflows:write`; App token is the fallback. Clones use the App token.
+- **State** → `/tmp/pr-queue-sync-state.json` (skip/interval/pending-verify),
+  workdirs `/tmp/pr-queue-sync-work/`.
+- **Notifications** → same `pr-agent-ops` Discord webhook: synced, PR opened,
+  reverted, skipped-once.
+
+Manual/dev:
+```bash
+python3 scripts/pr-queue-worker.py --sync-status
+python3 scripts/pr-queue-worker.py --sync-only asepharyana/shiro-neko --dry   # stops before push
+python3 scripts/pr-queue-worker.py --sync-only asepharyana/shiro-neko
+```
+Tests: `python3 scripts/test_pr_queue_sync.py` (51 assertions; no network —
+gh_api/git/Hermes API/push are monkeypatched).
 
 ## Deployment
 

scripts/smoke_hermes_api_server.py

@@ -0,0 +1,98 @@
+#!/usr/bin/env python3
+"""Standalone smoke test for the Hermes gateway API server adapter.
+
+Starts APIServerAdapter on a private port (default 8643) using the LIVE hermes
+install, then drives a real agent turn through POST /v1/chat/completions —
+proving the whole path the pr-queue-worker depends on:
+
+    bearer auth -> route -> AIAgent -> toolset (terminal/file) -> response
+
+No gateway restart needed and nothing in the running gateway is touched.
+"""
+import argparse
+import asyncio
+import json
+import os
+import sys
+import time
+
+INSTALL = os.environ.get("HERMES_INSTALL", "/home/code/.hermes/hermes-agent")
+sys.path.insert(0, INSTALL)
+
+
+def main():
+    ap = argparse.ArgumentParser()
+    ap.add_argument("--port", type=int, default=8643)
+    ap.add_argument("--key", default="standalone-smoke-key-0123456789abcdef")
+    ap.add_argument("--prompt", default=None)
+    ap.add_argument("--timeout", type=float, default=300.0)
+    ap.add_argument("--keep-alive", action="store_true", help="serve until Ctrl-C")
+    args = ap.parse_args()
+
+    os.environ["API_SERVER_KEY"] = args.key
+    os.environ["API_SERVER_HOST"] = "127.0.0.1"
+    os.environ["API_SERVER_PORT"] = str(args.port)
+
+    from gateway.config import PlatformConfig, Platform
+    from gateway.platforms.api_server import APIServerAdapter
+
+    cfg = PlatformConfig(enabled=True, extra={"host": "127.0.0.1", "port": args.port, "key": args.key})
+    adapter = APIServerAdapter(cfg)
+    print(f"[smoke] starting API server adapter on 127.0.0.1:{args.port}", flush=True)
+
+    async def run():
+        ok = await adapter.connect()
+        print(f"[smoke] connect() -> {ok}", flush=True)
+        if not ok:
+            err = getattr(adapter, "_fatal_error", None) or getattr(adapter, "fatal_error", None)
+            print(f"[smoke] fatal: {err}", flush=True)
+            return 1
+        if args.keep_alive:
+            print("[smoke] serving — Ctrl-C to stop", flush=True)
+            while True:
+                await asyncio.sleep(3600)
+        await asyncio.sleep(0.5)
+
+        import httpx
+        prompt = args.prompt or (
+            "Use your terminal tool to run exactly: echo HERMES_API_OK && pwd\n"
+            "Then reply with the raw output only."
+        )
+        body = {
+            "model": "hermes-agent",
+            "messages": [{"role": "user", "content": prompt}],
+            "stream": False,
+        }
+        url = f"http://127.0.0.1:{args.port}/v1/chat/completions"
+        t0 = time.time()
+        try:
+            async with httpx.AsyncClient(timeout=args.timeout) as client:
+                r = await client.post(url, headers={"Authorization": f"Bearer {args.key}"}, json=body)
+            dt = time.time() - t0
+            print(f"[smoke] HTTP {r.status_code} in {dt:.1f}s", flush=True)
+            print("[smoke] body:", r.text[:1500], flush=True)
+            if r.status_code != 200:
+                return 1
+            data = r.json()
+            text = (data.get("choices") or [{}])[0].get("message", {}).get("content", "")
+            print(f"[smoke] agent text: {text[:400]!r}", flush=True)
+            if "HERMES_API_OK" not in text:
+                print("[smoke] FAIL: terminal tool output not present in the answer", flush=True)
+                return 1
+            print("[smoke] PASS: agent ran a real terminal tool through the API server", flush=True)
+            return 0
+        except Exception as exc:
+            print(f"[smoke] request failed: {type(exc).__name__}: {exc}", flush=True)
+            return 1
+
+    try:
+        return asyncio.run(run())
+    finally:
+        try:
+            asyncio.run(adapter.disconnect())
+        except Exception:
+            pass
+
+
+if __name__ == "__main__":
+    sys.exit(main())

scripts/test_pr_queue_sync.py

@@ -0,0 +1,697 @@
+#!/usr/bin/env python3
+"""
+Unit tests for the pr-queue-worker upstream fork auto-sync section.
+
+Run:  python3 scripts/test_pr_queue_sync.py
+
+No network, no GitHub token, no real git: `gh_api`, `_sync_git`, the Claude
+runner and the push helper are monkeypatched so the worker's *orchestration*
+(merge path, conflict path, protected-branch path, CI verify/revert, gating and
+state bookkeeping) is exercised deterministically. The git mechanics themselves
+are covered by the live E2E (`--sync-only <repo> --dry`), not here.
+"""
+import importlib.util
+import json
+import pathlib
+import subprocess
+import sys
+import tempfile
+import time
+
+HERE = pathlib.Path(__file__).resolve().parent
+
+
+def load_worker():
+    spec = importlib.util.spec_from_file_location("pr_queue_worker", HERE / "pr-queue-worker.py")
+    mod = importlib.util.module_from_spec(spec)
+    spec.loader.exec_module(mod)
+    return mod
+
+
+W = load_worker()
+_real_sync_finish_merge = W._sync_finish_merge
+
+PASSED = []
+FAILED = []
+
+
+def check(name, cond, detail=""):
+    (PASSED if cond else FAILED).append(name)
+    print(("  PASS  " if cond else "  FAIL  ") + name + ("" if cond else f"  ← {detail}"))
+
+
+def cp(args, code=0, out="", err=""):
+    return subprocess.CompletedProcess(args, code, out, err)
+
+
+def make_state_file(tmpdir):
+    """Point the worker's sync state at a temp file so tests never touch /tmp."""
+    W.SYNC_STATE_FILE = pathlib.Path(tmpdir) / "sync-state.json"
+    W.SYNC_TMP_BASE = pathlib.Path(tmpdir) / "sync-work"
+    W.sync_config  # noqa: B018 — keep the reference obvious for readers
+
+
+# ── 1. compare-API parsing ────────────────────────────────────────────────
+def test_upstream_status_parsing():
+    print("1. upstream_status parses ahead_by/behind_by/tip")
+    calls = []
+
+    def fake_gh(method, path, token=None, json_data=None, retries=3):
+        calls.append(path)
+        return 200, {
+            "ahead_by": 4, "behind_by": 26,
+            "commits": [{"sha": "aaa"}, {"sha": "bbb"}, {"sha": "ccc"}, {"sha": "4eafc064"}],
+        }
+
+    W.gh_api = fake_gh
+    info = W.upstream_status("tok", "asepharyana/shiro-neko", "zakirkun/shiro-neko", "main", "main")
+    check("merge_count is ahead_by", info == (4, 26, "4eafc064"), str(info))
+    check("single compare call", len(calls) == 1, str(calls))
+    check("compare path uses owner:branch head (not owner/repo:branch)",
+          calls[0] == "/repos/asepharyana/shiro-neko/compare/main...zakirkun:main", str(calls))
+
+    def failing_gh(method, path, token=None, json_data=None, retries=3):
+        return 404, {"message": "Not Found"}
+
+    W.gh_api = failing_gh
+    check("unavailable compare → None", W.upstream_status("tok", "f", "p", "main", "main") is None)
+
+
+# ── 2. gating: same upstream tip / interval not due ───────────────────────
+def test_gating(tmpdir):
+    print("2. run_upstream_sync gating (interval + same upstream tip)")
+    make_state_file(tmpdir)
+    attempts = []
+
+    orig_list_forks = W.list_fork_repos
+    W.list_fork_repos = lambda: [("tok", "asepharyana/shiro-neko", "zakirkun/shiro-neko", "main")]
+
+    def fake_gh(method, path, token=None, json_data=None, retries=3):
+        if "/compare/" in path:
+            return 200, {"ahead_by": 4, "behind_by": 26, "commits": [{"sha": "up1"}]}
+        if path.startswith("/repos/asepharyana/shiro-neko/pulls"):
+            return 200, []
+        if path.endswith("/repos/asepharyana/shiro-neko"):
+            return 200, {"fork": True, "parent": {"full_name": "zakirkun/shiro-neko",
+                                                  "default_branch": "main"},
+                         "default_branch": "main"}
+        return 200, {}
+
+    W.gh_api = fake_gh
+    W.post_sync_discord = lambda *a, **k: True
+    orig_sync = W.sync_fork_repo
+
+    def fake_sync(token, fork, parent, local_branch, upstream_branch, upstream_sha,
+                  merge_count, divergence, state, cfg, dry=False):
+        # mirror what the real function records so the gating is exercised
+        attempts.append((upstream_sha, dry))
+        entry = W._sync_entry(state, fork)
+        entry["last_sync_ts"] = time.time()
+        entry["last_attempt_sha"] = upstream_sha
+        W.save_sync_state(state)
+        return "synced", "fake"
+
+    W.sync_fork_repo = fake_sync
+
+    lines = W.run_upstream_sync()
+    check("first tick attempts the sync", len(attempts) == 1, str(lines))
+
+    lines = W.run_upstream_sync()
+    check("second tick not attempted (same upstream tip)", len(attempts) == 1, str(lines))
+
+    # upstream moves, but the interval has not elapsed → still no attempt
+    def fake_gh2(method, path, token=None, json_data=None, retries=3):
+        if "/compare/" in path:
+            return 200, {"ahead_by": 5, "behind_by": 26, "commits": [{"sha": "up2"}]}
+        if path == "/repos/asepharyana/shiro-neko":
+            return 200, {"fork": True, "parent": {"full_name": "zakirkun/shiro-neko",
+                                                  "default_branch": "main"},
+                         "default_branch": "main"}
+        return 200, []
+
+    W.gh_api = fake_gh2
+    lines = W.run_upstream_sync()
+    check("interval gate blocks a fresh retry", len(attempts) == 1, str(lines) + str(attempts))
+
+    # backdate the last attempt → the new upstream tip is picked up
+    st = json.loads(W.SYNC_STATE_FILE.read_text())
+    st["asepharyana/shiro-neko"]["last_sync_ts"] = time.time() - 2 * 3600
+    W.SYNC_STATE_FILE.write_text(json.dumps(st))
+    W.run_upstream_sync()
+    check("new upstream tip attempts again once the interval elapsed",
+          [a[0] for a in attempts] == ["up1", "up2"], str(attempts))
+    W.sync_fork_repo = orig_sync  # later tests exercise the real implementation
+    W.list_fork_repos = orig_list_forks
+
+
+# ── 3. clean merge → push → pending_verify ────────────────────────────────
+def _install_git_fake(merge_code=0, unmerged=None):
+    """Fake `git` for sync_fork_repo: clone/config/rev-parse/fetch/merge."""
+    state = {"head": "pre" + "0" * 37, "merges": [], "aborts": 0}
+
+    def fake_git(args, cwd=None, timeout=180):
+        a = [str(x) for x in args]
+        if a[0] == "clone":
+            return cp(a)
+        if a[0] == "rev-parse":
+            return cp(a, 0, state["head"] + "\n")
+        if a[0] == "merge":
+            if "--abort" in a:
+                state["aborts"] += 1
+                return cp(a)
+            state["merges"].append(a)
+            if merge_code == 0:
+                state["head"] = "merge" + "1" * 36
+            return cp(a, merge_code, "", "CONFLICT" if merge_code else "")
+        if a[0] == "diff":
+            # the merge diff (used for the quality pass) lists files; the
+            # unmerged listing is served by the monkeypatched _sync_unmerged_files
+            return cp(a, 0, "src/a.ts\nsrc/b.ts\n")
+        if a[0] == "status":
+            return cp(a, 0, "")
+        return cp(a)
+
+    W._sync_git = fake_git
+    W._sync_unmerged_files = lambda workdir: list(unmerged or [])
+    # Reset the marker guard too: tests that stub it out must not leak into the
+    # next test (a leftover stub silently disabled the commit guard).
+    W._sync_has_conflict_markers = lambda workdir: []
+    # Reset _sync_finish_merge to the real implementation. Test 4 stubs it with
+    # a fake that always succeeds — a leaked copy turns a FAILED resolution
+    # (test 5, 15b) into a bogus salvage and hides the skip/abort behavior.
+    W._sync_finish_merge = _real_sync_finish_merge
+    return state
+
+
+def test_clean_merge_synced(tmpdir):
+    print("3. clean merge pushes and records pending_verify")
+    make_state_file(tmpdir)
+    state = {}
+    gitstate = _install_git_fake(merge_code=0, unmerged=[])
+    claude_calls = []
+    W._run_claude_sync = lambda workdir, prompt, label, fork, dry=False: (claude_calls.append(label), (True, "ok"))[1]
+    W._sync_commit_if_dirty = lambda workdir, msg: False
+    pushes = []
+
+    def fake_push(workdir, fork, source, dest, app_token, force=False):
+        pushes.append((source, dest, force))
+        return True, "pat push ok", False
+
+    W._push_ref = fake_push
+    res, detail = W.sync_fork_repo("tok", "asepharyana/shiro-neko", "zakirkun/shiro-neko",
+                                  "main", "main", "up1", 4, 26, state, W.sync_config("x"))
+    entry = state["asepharyana/shiro-neko"]
+    check("status synced", res == "synced", f"{res} {detail}")
+    check("pushed to the local branch", pushes and pushes[0][1] == "refs/heads/main", str(pushes))
+    check("pending_verify records merge sha", entry["pending_verify"]["sha"] == gitstate["head"], str(entry))
+    check("pending_verify records pre_merge sha", entry["pending_verify"]["pre_merge_sha"].startswith("pre"), str(entry))
+    check("last_merged_upstream_sha recorded", entry["last_merged_upstream_sha"] == "up1", str(entry))
+    check("clean merge gets a quality pass", claude_calls == ["hermes_sync_quality"], str(claude_calls))
+
+
+def test_dry_run_is_pure(tmpdir):
+    print("3b. --dry never writes state, never posts Discord, never pushes")
+    # NOTE: the dry-path asserts `state == {}` — under the hood the worker builds
+    # a NEW empty state dict for dry runs (run_upstream_sync sets state={});
+    # sync_fork_repo itself also refuses to mutate state in dry mode. The unit
+    # test calls sync_fork_repo directly, so it asserts against a pre-seeded
+    # dict to catch any write through that seam.
+    make_state_file(tmpdir)
+    state = {}
+    _install_git_fake(merge_code=0, unmerged=[])
+    W._run_claude_sync = lambda workdir, prompt, label, fork, dry=False: (True, "ok")
+    W._sync_commit_if_dirty = lambda workdir, msg: False
+    pushes = []
+
+    def fake_push(workdir, fork, source, dest, app_token, force=False):
+        pushes.append(dest)
+        return True, "pat push ok", False
+
+    W._push_ref = fake_push
+    before = dict(state)
+    res, detail = W.sync_fork_repo("tok", "asepharyana/shiro-neko", "zakirkun/shiro-neko",
+                                  "main", "main", "up1", 4, 26, state, W.sync_config("x"), dry=True)
+    check("dry returns 'dry'", res == "dry", f"{res} {detail}")
+    check("dry never pushes", not pushes, str(pushes))
+    check("dry never writes state", state == before, f"{state} vs {before}")
+
+    # conflict path in dry: failed resolution must NOT write state either
+    state = {}
+    _install_git_fake(merge_code=1, unmerged=["src/tools.ts"])
+    W._run_claude_sync = lambda workdir, prompt, label, fork, dry=False: (False, "[INFRA] timed out")
+    before = dict(state)
+    res, detail = W.sync_fork_repo("tok", "f/x", "up/x", "main", "main", "up1", 4, 26, state,
+                                   W.sync_config("x"), dry=True)
+    check("dry conflict failure returns conflict-failed", res == "conflict-failed", f"{res} {detail}")
+    check("dry conflict failure writes no state", state == before, f"{state} vs {before}")
+
+
+# ── 4. conflicted merge resolved by Claude ────────────────────────────────
+def test_conflict_resolved(tmpdir):
+    print("4. conflicted merge handed to Claude Code, then pushed")
+    make_state_file(tmpdir)
+    state = {}
+    _install_git_fake(merge_code=1, unmerged=["src/tools.ts", "src/ui/App.tsx"])
+    labels = []
+
+    def fake_claude(workdir, prompt, label, fork, dry=False):
+        labels.append(label)
+        # after resolution the tree is clean → _sync_finish_merge must be called
+        W._sync_unmerged_files = lambda w: []
+        check("conflict prompt forbids --ours/--theirs",
+              "--ours/--theirs" in prompt and "rebase" in prompt)
+        return True, "resolved"
+
+    W._run_claude_sync = fake_claude
+    finished = {"n": 0}
+    # _install_git_fake defaults unmerged=[]; test 4's fake_claude flips it to []
+    # mid-run — reset after the test so the leak does not poison test 5.
+    # (test 5 deliberately runs a FAILED resolution and must see the merge
+    #  still in conflict, not a bogus salvage.)
+
+    def fake_finish(workdir):
+        finished["n"] += 1
+        return True, ""
+
+    W._sync_finish_merge = fake_finish
+    W._push_ref = lambda *a, **k: (True, "pat push ok", False)
+    res, detail = W.sync_fork_repo("tok", "f/x", "up/x", "main", "main", "up1", 4, 26, state, W.sync_config("x"))
+    check("status synced", res == "synced", f"{res} {detail}")
+    check("conflict runner used", labels == ["hermes_sync_conflicts"], str(labels))
+    check("merge completed once", finished["n"] == 1, str(finished))
+    check("resolution noted in detail", "resolved 2 conflict" in detail, detail)
+    # Reset the fakes: fake_finish + the unmerged flip leak into test 5.
+    _install_git_fake()
+
+
+def test_conflict_failed_skips_and_dedupes(tmpdir):
+    print("5. failed conflict resolution → skip once, no retry at same upstream tip")
+    make_state_file(tmpdir)
+    state = {}
+    _install_git_fake(merge_code=1, unmerged=["src/tools.ts"])
+    W._run_claude_sync = lambda *a, **k: (False, "[INFRA] Hermes API server timed out")
+    W._push_ref = lambda *a, **k: (_ for _ in ()).throw(AssertionError("must not push after failed resolution"))
+    res, detail = W.sync_fork_repo("tok", "f/x", "up/x", "main", "main", "up1", 4, 26, state, W.sync_config("x"))
+    entry = state["f/x"]
+    check("status conflict-failed", res == "conflict-failed", f"{res} {detail}")
+    check("upstream tip recorded as attempted", entry["last_attempt_sha"] == "up1", str(entry))
+    check("skip reason recorded", "timed out" in entry.get("skip_reason", ""), str(entry))
+    check("pending_verify not set", not entry.get("pending_verify"), str(entry))
+
+
+# ── 6. protected branch → PR path ─────────────────────────────────────────
+def test_protected_branch_opens_pr(tmpdir):
+    print("6. protected branch falls back to an upstream-sync PR")
+    make_state_file(tmpdir)
+    state = {}
+    _install_git_fake(merge_code=0, unmerged=[])
+    W._run_claude_sync = lambda *a, **k: (True, "ok")
+    W._sync_commit_if_dirty = lambda *a, **k: False
+    pushes = []
+
+    def fake_push(workdir, fork, source, dest, app_token, force=False):
+        pushes.append(dest)
+        if dest.endswith("refs/heads/main"):
+            return False, "pat: remote: error: GH006 protected branch", True
+        return True, "pat push ok", False
+
+    W._push_ref = fake_push
+    W.open_sync_pr = lambda *a, **k: 42
+    res, detail = W.sync_fork_repo("tok", "f/x", "up/x", "main", "main", "up1", 4, 26, state, W.sync_config("x"))
+    check("status pr-opened", res == "pr-opened", f"{res} {detail}")
+    check("direct push attempted first", pushes and pushes[0] == "refs/heads/main", str(pushes))
+    check("no pending_verify on the PR path", not state["f/x"].get("pending_verify"), str(state["f/x"]))
+
+
+# ── 7. CI verify / auto-revert ────────────────────────────────────────────
+def test_verify_green_clears(tmpdir):
+    print("7. verify_pending_syncs: green CI clears the watch")
+    make_state_file(tmpdir)
+    state = {"f/x": {"pending_verify": {"sha": "abc", "pre_merge_sha": "pre", "branch": "main",
+                                       "pushed_at": time.time()}}}
+
+    def fake_gh(method, path, token=None, json_data=None, retries=3):
+        if "/commits/main" in path:
+            return 200, [{"sha": "abc"}]
+        if path.endswith("/check-runs"):
+            return 200, {"check_runs": [{"name": "build", "status": "completed", "conclusion": "success"}]}
+        return 200, {}
+
+    W.gh_api = fake_gh
+    reverted = []
+    W._sync_revert_merge = lambda *a, **k: (reverted.append(a), (True, "reverted"))[1]
+    lines = W.verify_pending_syncs(state, {"f/x": "tok"})
+    check("green verifies", any("verified green" in l for l in lines), str(lines))
+    check("watch cleared", state["f/x"]["pending_verify"] is None, str(state))
+    check("no revert on green", not reverted, str(reverted))
+
+
+def test_verify_red_reverts(tmpdir):
+    print("8. verify_pending_syncs: red CI at our merge sha reverts it")
+    make_state_file(tmpdir)
+    state = {"f/x": {"pending_verify": {"sha": "abc", "pre_merge_sha": "pre", "branch": "main",
+                                       "pushed_at": time.time()}}}
+
+    def fake_gh(method, path, token=None, json_data=None, retries=3):
+        if "/commits/main" in path:
+            return 200, [{"sha": "abc"}]
+        if path.endswith("/check-runs"):
+            return 200, {"check_runs": [{"name": "build", "status": "completed", "conclusion": "failure"}]}
+        return 200, {}
+
+    W.gh_api = fake_gh
+    reverted = []
+
+    def fake_revert(token, fork, branch, pre_merge_sha, reason):
+        reverted.append((fork, branch, pre_merge_sha, reason))
+        return True, "reverted main to pre"
+
+    W._sync_revert_merge = fake_revert
+    W.post_sync_discord = lambda *a, **k: True
+    lines = W.verify_pending_syncs(state, {"f/x": "tok"})
+    check("revert invoked with the pre-merge sha",
+          reverted and reverted[0][2] == "pre" and reverted[0][1] == "main", str(reverted))
+    check("revert reported", any("reverted" in l for l in lines), str(lines))
+    check("watch cleared after revert", state["f/x"]["pending_verify"] is None, str(state))
+
+
+def test_verify_never_reverts_foreign_commits(tmpdir):
+    print("9. verify_pending_syncs: never reverts when someone pushed on top")
+    make_state_file(tmpdir)
+    state = {"f/x": {"pending_verify": {"sha": "abc", "pre_merge_sha": "pre", "branch": "main",
+                                       "pushed_at": time.time()}}}
+
+    def fake_gh(method, path, token=None, json_data=None, retries=3):
+        if "/commits/main" in path:
+            return 200, [{"sha": "humancommit"}]
+        if path.endswith("/check-runs"):
+            return 200, {"check_runs": [{"name": "build", "status": "completed", "conclusion": "failure"}]}
+        return 200, {}
+
+    W.gh_api = fake_gh
+    reverted = []
+    W._sync_revert_merge = lambda *a, **k: (reverted.append(a), (True, "x"))[1]
+    lines = W.verify_pending_syncs(state, {"f/x": "tok"})
+    check("no revert when the tip moved", not reverted, str(reverted))
+    check("tip change reported", any("moved past our merge" in l for l in lines), str(lines))
+    check("watch cleared", state["f/x"]["pending_verify"] is None, str(state))
+
+
+def test_verify_waits_for_running_ci(tmpdir):
+    print("10. verify_pending_syncs: waits while checks run, respects no-CI grace")
+    make_state_file(tmpdir)
+    state = {"f/x": {"pending_verify": {"sha": "abc", "pre_merge_sha": "pre", "branch": "main",
+                                       "pushed_at": time.time()}}}
+
+    def fake_gh(method, path, token=None, json_data=None, retries=3):
+        if "/commits/main" in path:
+            return 200, [{"sha": "abc"}]
+        if path.endswith("/check-runs"):
+            return 200, {"check_runs": [{"name": "build", "status": "in_progress"}]}
+        return 200, {}
+
+    W.gh_api = fake_gh
+    W.verify_pending_syncs(state, {"f/x": "tok"})
+    check("running CI keeps the watch", state["f/x"]["pending_verify"] is not None, str(state))
+
+    # no checks at all and young → still pending (check-runs lag)
+    def fake_gh_none(method, path, token=None, json_data=None, retries=3):
+        if "/commits/main" in path:
+            return 200, [{"sha": "abc"}]
+        return 200, {"check_runs": []}
+
+    W.gh_api = fake_gh_none
+    W.verify_pending_syncs(state, {"f/x": "tok"})
+    check("fresh no-CI merge stays pending", state["f/x"]["pending_verify"] is not None, str(state))
+
+    # old + no CI → stop watching
+    state["f/x"]["pending_verify"]["pushed_at"] = time.time() - 3600
+    W.verify_pending_syncs(state, {"f/x": "tok"})
+    check("stale no-CI merge stops the watch", state["f/x"]["pending_verify"] is None, str(state))
+
+
+# ── 11. fork discovery ────────────────────────────────────────────────────
+def test_list_fork_repos():
+    print("11. list_fork_repos returns only forks with a resolvable parent")
+    def fake_gh(method, path, token=None, json_data=None, retries=3):
+        if path == "/app/installations":
+            return 200, [{"id": 1}]
+        if path.startswith("/installation/repositories"):
+            return 200, {"repositories": [
+                {"full_name": "o/plain-repo", "fork": False},
+                {"full_name": "o/fork-a", "fork": True},
+                {"full_name": "o/fork-b", "fork": True},
+            ]}
+        if path == "/repos/o/fork-a":
+            return 200, {"fork": True, "default_branch": "main", "parent": {"full_name": "up/a"}}
+        if path == "/repos/o/fork-b":
+            return 200, {"fork": True, "default_branch": "main"}  # parent stripped
+        return 404, {}
+
+    W.gh_api = fake_gh
+    W.get_installation_token = lambda inst: "tok"
+    forks = W.list_fork_repos()
+    check("only the resolvable fork returned", forks == [("tok", "o/fork-a", "up/a", "main")], str(forks))
+
+
+# ── 12. push-error classification ─────────────────────────────────────────
+def test_push_error_classification():
+    print("12. push error classification")
+    check("GH006 → protected", W._is_protected_push_error(
+        "remote: error: GH006: Protected branch update failed for refs/heads/main."))
+    check("required status checks → protected", W._is_protected_push_error(
+        "remote: error: Required status check \"ci\" is expected."))
+    check("workflows permission detected", W._is_workflow_push_error(
+        "! [remote rejected] main -> main (refusing to allow a GitHub App to create or update workflow `.github/workflows/ci.yml` without `workflows` permission)"))
+    check("plain rejected push is not 'protected'", not W._is_protected_push_error(
+        "fatal: could not read Username for 'https://github.com'"))
+
+
+# ── 13. per-repo config override ──────────────────────────────────────────
+def test_sync_config_override():
+    print("13. per-repo config override merges over defaults")
+    W.UPSTREAM_SYNC["repos"] = {"o/fork": {"interval_h": 6, "verify_ci": False}}
+    cfg = W.sync_config("o/fork")
+    check("override applied", cfg["interval_h"] == 6 and cfg["verify_ci"] is False, str(cfg))
+    check("defaults preserved", cfg["resolve_conflicts"] is True, str(cfg))
+    check("repos key not leaked", "repos" not in cfg, str(cfg))
+    W.UPSTREAM_SYNC["repos"] = {}
+
+
+# ── 14. Hermes API-server client ──────────────────────────────────────────
+def test_hermes_api_client(tmpdir):
+    """The worker's Hermes client must speak OpenAI chat-completions and map
+    failures to [INFRA] strings the skip logic understands. Uses a real local
+    HTTP server (no external network)."""
+    print("14. Hermes API-server client (real HTTP round-trip)")
+    import http.server
+    import threading
+
+    seen = {}
+
+    class Handler(http.server.BaseHTTPRequestHandler):
+        def do_POST(self):
+            length = int(self.headers.get("Content-Length") or 0)
+            body = json.loads(self.rfile.read(length) or b"{}")
+            seen["path"] = self.path
+            seen["auth"] = self.headers.get("Authorization", "")
+            seen["body"] = body
+            if body.get("messages", [{}])[-1].get("content") == "boom":
+                self.send_response(500)
+                self.send_header("Content-Type", "application/json")
+                self.end_headers()
+                self.wfile.write(b'{"error":{"message":"upstream exploded"}}')
+                return
+            payload = json.dumps({
+                "choices": [{"message": {"role": "assistant", "content": "resolved ok"}}]
+            }).encode()
+            self.send_response(200)
+            self.send_header("Content-Type", "application/json")
+            self.end_headers()
+            self.wfile.write(payload)
+
+        def log_message(self, *a):
+            pass
+
+    srv = http.server.HTTPServer(("127.0.0.1", 0), Handler)
+    port = srv.server_address[1]
+    t = threading.Thread(target=srv.serve_forever, daemon=True)
+    t.start()
+    try:
+        W.API_SERVER_URL = f"http://127.0.0.1:{port}/v1"
+        W._api_server_key_from_env = lambda: "test-key-0123456789"
+        ok, text = W._hermes_api_post("resolve these conflicts", tmpdir)
+        check("client posts to /v1/chat/completions", seen.get("path") == "/v1/chat/completions", str(seen.get("path")))
+        check("client sends bearer auth", seen.get("auth") == "Bearer test-key-0123456789", str(seen.get("auth")))
+        check("client sends openai messages shape",
+              seen.get("body", {}).get("messages", [{}])[0].get("role") == "system", str(seen.get("body"))[:200])
+        check("client caps turns via model_options",
+              seen.get("body", {}).get("model_options", {}).get("max_turns") == W.AI_FIX_MAX_TURNS,
+              str(seen.get("body", {}).get("model_options")))
+        check("client returns agent text", ok and text == "resolved ok", f"{ok} {text!r}")
+
+        ok2, err2 = W._hermes_api_post("boom", tmpdir)
+        check("HTTP error mapped to [INFRA]", (not ok2) and err2.startswith("[INFRA]") and "500" in err2, err2)
+
+        # missing key → INFRA, never a silent success
+        W._api_server_key_from_env = lambda: ""
+        saved = W.os.environ.pop("API_SERVER_KEY", None)
+        try:
+            ok3, err3 = W._hermes_api_post("x", tmpdir)
+            check("missing key is [INFRA]", (not ok3) and "API_SERVER_KEY" in err3, err3)
+        finally:
+            if saved is not None:
+                W.os.environ["API_SERVER_KEY"] = saved
+
+        # unreachable port → INFRA with guidance
+        W._api_server_key_from_env = lambda: "test-key-0123456789"
+        W.API_SERVER_URL = "http://127.0.0.1:9/v1"
+        ok4, err4 = W._hermes_api_post("x", tmpdir)
+        check("unreachable server is [INFRA]", (not ok4) and "unreachable" in err4, err4)
+    finally:
+        srv.shutdown()
+        srv.server_close()
+        W.API_SERVER_URL = "http://127.0.0.1:8642/v1"
+
+
+# ── 15. salvage + marker guard ────────────────────────────────────────────
+def test_session_header_sent(tmpdir):
+    """X-Hermes-Session-Id must be sent so each fork gets a fresh transcript."""
+    print("17. X-Hermes-Session-Id is sent per fork")
+    captured = {}
+
+    class FakeResp:
+        status_code = 200
+
+        def json(self):
+            return {"choices": [{"message": {"content": "done"}}]}
+
+    import httpx as _httpx
+    import sys as _sys
+
+    class FakeClient:
+        def __init__(self, *a, **k):
+            pass
+
+        def __enter__(self):
+            return self
+
+        def __exit__(self, *a):
+            return False
+
+        def post(self, url, headers, json):
+            captured["headers"] = headers
+            captured["url"] = url
+            return FakeResp()
+
+    _sys.modules["httpx"] = type("H", (), {"Client": FakeClient})
+    ok, snippet = W._hermes_api_post("resolve", pathlib.Path(tmpdir), session_id="sync_x_y")
+    check("session header sent", captured["headers"].get("X-Hermes-Session-Id") == "sync_x_y",
+          str(captured.get("headers")))
+    # Without session_id the header must be absent.
+    captured.clear()
+    ok2, _ = W._hermes_api_post("x", pathlib.Path(tmpdir), session_id=None)
+    check("session header absent when not passed",
+          "X-Hermes-Session-Id" not in captured["headers"], str(captured.get("headers")))
+    _sys.modules["httpx"] = _httpx
+
+
+# ── 15. salvage + marker guard ────────────────────────────────────────────
+def test_salvage_on_agent_timeout(tmpdir):
+    """A timed-out agent call must NOT throw away a merge the agent already
+    finished — resolving many conflicts legitimately exceeds the HTTP timeout."""
+    print("15. salvage a completed merge after an agent timeout")
+    make_state_file(tmpdir)
+    state = {}
+    gitstate = _install_git_fake(merge_code=1, unmerged=[])  # agent resolved everything
+    labels = []
+
+    # The merge reports conflicts (so the worker enters the conflict path), but
+    # by the time the agent call ends the agent HAS resolved everything — the
+    # listing flips to empty when the fake runner is invoked.
+    resolved = {"done": False}
+
+    def fake_runner(workdir, prompt, label, fork, dry=False):
+        labels.append(label)
+        resolved["done"] = True          # agent finished the work…
+        return False, "[INFRA] Hermes API server timed out after 2700s"  # …but the HTTP call timed out
+
+    W._run_claude_sync = fake_runner
+    W._sync_unmerged_files = lambda workdir: [] if resolved["done"] else ["src/tools.ts"]
+    W._sync_has_conflict_markers = lambda workdir: []
+    pushes = []
+    W._push_ref = lambda workdir, fork, source, dest, app_token, force=False: (
+        pushes.append(dest), (True, "pat push ok", False))[1]
+
+    res, detail = W.sync_fork_repo("tok", "asepharyana/shiro-neko", "zakirkun/shiro-neko",
+                                   "main", "main", "up1", 4, 26, state, W.sync_config("x"))
+    check("timeout after a finished merge is salvaged, not failed",
+          res == "synced", f"{res} {detail}")
+    check("salvage still pushes", pushes and pushes[0] == "refs/heads/main", str(pushes))
+    check("salvage note mentions the salvage", "salvag" in detail.lower(), detail)
+
+    # …but a genuinely unfinished merge still fails and aborts.
+    print("15b. unfinished merge after a timeout still fails")
+    make_state_file(tmpdir)
+    state2 = {}
+    gitstate2 = _install_git_fake(merge_code=1, unmerged=["src/tools.ts"])
+    W._sync_unmerged_files = lambda workdir: ["src/tools.ts"]
+    W._sync_has_conflict_markers = lambda workdir: ["src/tools.ts"]
+    res2, detail2 = W.sync_fork_repo("tok", "f/x", "up/x", "main", "main", "up1", 4, 26,
+                                     state2, W.sync_config("x"))
+    check("unfinished merge is still a failure", res2 == "conflict-failed", f"{res2} {detail2}")
+    check("unfinished merge is aborted", gitstate2["aborts"] >= 1, str(gitstate2))
+
+
+def test_finish_merge_blocks_leftover_markers(tmpdir):
+    """`git add`ed files that still carry markers must never be committed."""
+    print("16. _sync_finish_merge refuses files with leftover conflict markers")
+    make_state_file(tmpdir)
+    _install_git_fake()  # reset fakes; test 15b leaves a leaky spy behind
+    W._sync_unmerged_files = lambda workdir: []
+    W._sync_has_conflict_markers = lambda workdir: ["src/App.tsx"]
+    commits = []
+    real_git = W._sync_git
+
+    def git_spy(args, workdir, timeout):
+        if str(args[0]) == "commit":
+            commits.append(list(args))
+        return real_git(args, workdir, timeout)
+
+    W._sync_git = git_spy
+    ok, why = W._sync_finish_merge(pathlib.Path(tmpdir))
+    check("marker guard blocks the commit", (not ok) and "marker" in why, f"{ok} {why}")
+    check("no commit attempted", not commits, str(commits))
+    W._sync_git = real_git
+    W._sync_has_conflict_markers = lambda workdir: []
+    W._sync_unmerged_files = lambda workdir: []
+
+
+def main():
+    with tempfile.TemporaryDirectory() as tmpdir:
+        test_upstream_status_parsing()
+        test_gating(tmpdir)
+        test_clean_merge_synced(tmpdir)
+        test_dry_run_is_pure(tmpdir)
+        test_conflict_resolved(tmpdir)
+        test_conflict_failed_skips_and_dedupes(tmpdir)
+        test_protected_branch_opens_pr(tmpdir)
+        test_verify_green_clears(tmpdir)
+        test_verify_red_reverts(tmpdir)
+        test_verify_never_reverts_foreign_commits(tmpdir)
+        test_verify_waits_for_running_ci(tmpdir)
+        test_list_fork_repos()
+        test_push_error_classification()
+        test_sync_config_override()
+        test_hermes_api_client(pathlib.Path(tmpdir))
+        test_session_header_sent(tmpdir)
+        test_salvage_on_agent_timeout(tmpdir)
+        test_finish_merge_blocks_leftover_markers(tmpdir)
+    print(f"\n{len(PASSED)} passed, {len(FAILED)} failed")
+    if FAILED:
+        print("failed: " + ", ".join(FAILED))
+    return 1 if FAILED else 0
+
+
+if __name__ == "__main__":
+    sys.exit(main())

server/src/index.ts

@@ -115,9 +115,9 @@ export async function handleWebhook(
           env.discordWebhookUrl,
           `**${owner}/${repo}** PR #${pr.number} reviewed` +
             (result.data && result.data["review"] && (result.data["review"] as Record<string, unknown>)["score"]
-              ? ` — score ${(result.data["review"] as Record<string, unknown>)["score"]}/10`
+              ? ` — score ${(result.data["review"] as Record<string, unknown>)["score"]}/100`
               : "") +
-            `\n${result.markdown.slice(0, 4000)}`,
+            `\n${htmlToDiscordPlain(result.markdown).slice(0, 4000)}`,
           "✅ PR-Agent Review Complete",
         );
       }
@@ -147,6 +147,37 @@ async function getHttpx() {
   return fetch;
 }
 
+/** Strip HTML table markup down to Discord-friendly plain text.
+ *  Discord embeds render limited markdown — raw <table>/<td>/<tr> tags
+ *  would show as literal HTML. Convert the reviewer table into lines. */
+function htmlToDiscordPlain(html: string): string {
+  let s = html
+    .replace(/<details>/g, "")
+    .replace(/<\/details>/g, "")
+    .replace(/<summary>/g, "▶ ")
+    .replace(/<\/summary>/g, "\n")
+    .replace(/<br\s*\/?>/gi, "\n")
+    .replace(/<\/tr>/gi, "\n")
+    .replace(/<\/td>/gi, "")
+    .replace(/<\/th>/gi, "")
+    .replace(/<td[^>]*>/gi, "")
+    .replace(/<th[^>]*>/gi, "")
+    .replace(/<tr[^>]*>/gi, "")
+    .replace(/<table[^>]*>/gi, "")
+    .replace(/<\/table>/gi, "")
+    .replace(/<li[^>]*>/gi, "• ")
+    .replace(/<[^>]+>/g, "")
+    .replace(/&nbsp;/g, " ")
+    .replace(/&amp;/g, "&")
+    .replace(/&lt;/g, "<")
+    .replace(/&gt;/g, ">")
+    .replace(/&quot;/g, '"')
+    .replace(/&#39;/g, "'")
+    .replace(/\n{3,}/g, "\n\n")
+    .trim();
+  return s;
+}
+
 async function sendDiscord(webhook: string, content: string, title?: string): Promise<void> {
   try {
     await fetch(webhook, {