Implement debate round orchestration (WYL-45)

New module: src/coordinator/orchestrator.py
- DEBATER_NAMES, JUDGE_NAME, DEBATER_PROMPTS, JUDGE_PROMPT_TEMPLATE hardcoded for v1
- Per-debater prompts tell each debater exactly which tool output to ground evidence in
- orchestrate_pending() is the main entry point called from watch_loop
- _start_round(): pending→running, posts debater mention comment, phase→awaiting_debaters
- _advance_awaiting_debaters(): polls for replies, handles timeout with partial evidence,
  posts judge comment, phase→awaiting_judge
- _advance_awaiting_judge(): polls for verdict; RACE FIX — update_issue_status() called
  BEFORE queue.update_status("done") so poll_once can never double-enqueue
- Detection: primary=author_id match, fallback=[{name} response]: content marker (enables tests)
- Restart-safe: phase field persisted on every mutation; in-flight rounds resume correctly

Extended src/coordinator/queue.py:
- Round gains phase, phase_entered_at, coordinator_comment_id, judge_comment_id fields
- DebateQueue.update_phase() and running() added
- All new fields default-empty so existing queue.json files load cleanly

Extended src/coordinator/multica_client.py:
- update_issue_status() convenience wrapper
- create_issue() for integration / smoke tests

Updated src/coordinator/__main__.py:
- _orchestrate_pending stub replaced with real import from orchestrator

Tests:
- tests/test_orchestrator.py: 32 new unit tests covering phase transitions, timeouts,
  race fix ordering, restart resume, full lifecycle
- tests/test_integration.py: @pytest.mark.integration test against real API
- smoke_test.py: standalone end-to-end script; ran against real API, verdict OK

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

pyproject.toml

@@ -19,3 +19,8 @@ build-backend = "setuptools.build_meta"
 
 [tool.setuptools.packages.find]
 where = ["src"]
+
+[tool.pytest.ini_options]
+markers = [
+    "integration: mark test as integration test (requires real API credentials)",
+]

smoke_test.py

@@ -0,0 +1,205 @@
+#!/usr/bin/env python3
+"""Standalone smoke test for debate round orchestration (WYL-45).
+
+Runs one full round end-to-end against the real multica API, cleans up,
+and prints verdict OK or FAIL.
+
+Usage:
+    python smoke_test.py
+
+Requires env vars (or ~/.coordinator/env):
+    COORDINATOR_SERVER_URL
+    COORDINATOR_WORKSPACE_ID
+    COORDINATOR_TOKEN
+"""
+from __future__ import annotations
+
+import logging
+import os
+import sys
+import tempfile
+from pathlib import Path
+
+
+def main() -> int:
+    logging.basicConfig(
+        level=logging.INFO,
+        format="%(asctime)s %(levelname)s %(message)s",
+        stream=sys.stderr,
+    )
+    log = logging.getLogger("smoke_test")
+
+    # ---- load coordinator package ------------------------------------------
+    src = Path(__file__).parent / "src"
+    if src.is_dir():
+        sys.path.insert(0, str(src))
+
+    try:
+        from coordinator.config import Config, load_env_file
+        from coordinator.multica_client import MulticaClient
+        from coordinator.queue import DebateQueue
+        from coordinator.state import SeenState
+        from coordinator.__main__ import poll_once
+        from coordinator.orchestrator import (
+            DEBATER_NAMES,
+            _advance_awaiting_debaters,
+            _advance_awaiting_judge,
+            _start_round,
+        )
+    except ImportError as exc:
+        print(f"FAIL: cannot import coordinator package: {exc}", file=sys.stderr)
+        print("      Run 'pip install -e .' in the coordinator directory first.")
+        return 1
+
+    load_env_file()
+    required = ["COORDINATOR_SERVER_URL", "COORDINATOR_WORKSPACE_ID", "COORDINATOR_TOKEN"]
+    missing = [k for k in required if not os.environ.get(k)]
+    if missing:
+        print(f"FAIL: missing env vars: {', '.join(missing)}", file=sys.stderr)
+        return 1
+
+    try:
+        cfg = Config.from_env()
+    except SystemExit as exc:
+        print(f"FAIL: {exc}", file=sys.stderr)
+        return 1
+
+    client = MulticaClient(cfg.server_url, cfg.workspace_id, cfg.token)
+    issue_id: str | None = None
+    failures: list[str] = []
+
+    def check(cond: bool, msg: str) -> None:
+        if not cond:
+            failures.append(msg)
+            log.error("ASSERTION FAILED: %s", msg)
+
+    with tempfile.TemporaryDirectory() as td:
+        tmp = Path(td)
+        state = SeenState.load(tmp / "seen.json")
+        queue = DebateQueue.load(tmp / "queue.json")
+
+        try:
+            # 1. Create scratch issue
+            log.info("creating scratch issue...")
+            issue = client.create_issue(
+                title="[DEBATE-SMOKE-TEST] WYL-45 smoke — auto-delete",
+                description=(
+                    "Smoke test issue for WYL-45. Auto-deleted after test.\n\n"
+                    "Commit: https://git.wylab.me/multica/coordinator/commit/smoke000"
+                ),
+            )
+            issue_id = issue["id"]
+            log.info("created issue %s", issue_id)
+
+            # 2. Set in_review and enqueue via poll_once
+            client.update_issue_status(issue_id, "in_review")
+            poll_once(client, state, queue, log)
+
+            check(bool(queue.pending()), "round not enqueued after poll_once")
+            if not queue.pending():
+                return 1
+            round_ = queue.pending()[0]
+            check(round_.issue_id == issue_id, "wrong issue_id in round")
+
+            # 3. Start the round
+            log.info("starting round...")
+            _start_round(round_, client, queue, cfg, log)
+
+            check(round_.status == "running", f"status={round_.status!r} (want 'running')")
+            check(round_.phase == "awaiting_debaters",
+                  f"phase={round_.phase!r} (want 'awaiting_debaters')")
+            check(bool(round_.coordinator_comment_id), "coordinator_comment_id not set")
+
+            # Verify comment on real issue
+            real_comments = client.list_comments(issue_id)
+            coord_comment = next(
+                (c for c in real_comments if c.get("id") == round_.coordinator_comment_id),
+                None,
+            )
+            check(coord_comment is not None, "coordinator comment not found in issue")
+            if coord_comment:
+                for name in DEBATER_NAMES:
+                    check(name in coord_comment["content"],
+                          f"debater '{name}' not mentioned in coordinator comment")
+
+            # 4. Simulate debater responses (content-marker fallback)
+            log.info("posting fake debater responses...")
+            for name in DEBATER_NAMES:
+                client.post_comment(
+                    issue_id,
+                    f"[{name} response]: Smoke-test evidence. "
+                    f"This simulates {name}'s analysis.",
+                )
+
+            # 5. Advance to awaiting_judge
+            log.info("advancing past debaters...")
+            _advance_awaiting_debaters(round_, client, queue, cfg, log)
+
+            check(round_.phase == "awaiting_judge",
+                  f"phase={round_.phase!r} (want 'awaiting_judge')")
+            check(bool(round_.judge_comment_id), "judge_comment_id not set")
+
+            real_comments = client.list_comments(issue_id)
+            judge_comment = next(
+                (c for c in real_comments if c.get("id") == round_.judge_comment_id),
+                None,
+            )
+            check(judge_comment is not None, "judge comment not found in issue")
+            if judge_comment:
+                check("Verdict requested" in judge_comment["content"],
+                      "judge comment missing 'Verdict requested'")
+
+            # 6. Simulate judge verdict
+            log.info("posting fake judge verdict...")
+            client.post_comment(
+                issue_id,
+                "VERDICT: ACCEPT\n\nSmoke test passed. Implementation is complete.",
+            )
+
+            # 7. Advance past judge
+            log.info("processing verdict...")
+            _advance_awaiting_judge(round_, client, queue, cfg, log)
+
+            check(round_.status == "done", f"status={round_.status!r} (want 'done')")
+            check(round_.phase == "accepted", f"phase={round_.phase!r} (want 'accepted')")
+
+            refreshed = client.get_issue(issue_id)
+            check(refreshed.get("status") == "done",
+                  f"issue status={refreshed.get('status')!r} (want 'done')")
+
+            # 8. Race-fix check: poll_once must not double-enqueue OUR issue.
+            # (Other in_review issues may also be enqueued — that's expected.)
+            rounds_before = len(queue.rounds)
+            poll_once(client, state, queue, log)
+            our_rounds_after = [
+                r for r in queue.rounds if r.issue_id == issue_id
+            ]
+            check(
+                len(our_rounds_after) == 1,
+                f"double-enqueue: issue {issue_id} appears {len(our_rounds_after)} time(s) "
+                f"in queue (want 1)",
+            )
+
+        except Exception as exc:
+            log.exception("unexpected error: %s", exc)
+            failures.append(f"unexpected exception: {exc}")
+        finally:
+            if issue_id:
+                try:
+                    client.update_issue_status(issue_id, "done")
+                    log.info("cleanup: issue %s → done", issue_id)
+                except Exception as exc:
+                    log.warning("cleanup failed: %s", exc)
+
+    if failures:
+        print(f"\nFAIL ({len(failures)} assertion(s)):")
+        for f in failures:
+            print(f"  - {f}")
+        return 1
+
+    print("\nverdict OK")
+    return 0
+
+
+if __name__ == "__main__":
+    sys.exit(main())

src/coordinator/__main__.py

@@ -3,8 +3,10 @@
 Watcher loop (WYL-44): polls in_review issues every 30 s, detects transitions,
 enqueues debate rounds into ~/.coordinator/queue.json.
 
-Debate orchestration (WYL-45) and verdict handling (WYL-46) are stubs here —
-they will be filled in by those tasks.
+Debate orchestration (WYL-45): orchestrate_pending() handles the full round
+lifecycle — debater mentions, evidence polling, judge verdict, issue status update.
+
+Verdict handling (WYL-46) will consume the accepted/rejected phase information.
 """
 from __future__ import annotations
 
@@ -14,6 +16,7 @@ import time
 
 from coordinator.config import Config
 from coordinator.multica_client import MulticaClient
+from coordinator.orchestrator import orchestrate_pending
 from coordinator.queue import DebateQueue
 from coordinator.state import SeenState
 
@@ -35,14 +38,12 @@ def _setup_logging(log_file) -> logging.Logger:
 
 
 # ---------------------------------------------------------------------------
-# Stub hooks for WYL-45 / WYL-46
+# Orchestration hook (WYL-45)
 # ---------------------------------------------------------------------------
 
 def _orchestrate_pending(queue: DebateQueue, cfg: Config, logger: logging.Logger) -> None:
-    """Process pending debate rounds.  Implemented in WYL-45."""
-    pending = queue.pending()
-    if pending:
-        logger.debug("orchestrator stub: %d pending round(s) (WYL-45 not yet implemented)", len(pending))
+    """Process pending and in-flight debate rounds."""
+    orchestrate_pending(queue, cfg, logger)
 
 
 # ---------------------------------------------------------------------------

src/coordinator/multica_client.py

@@ -51,6 +51,26 @@ class MulticaClient:
         r.raise_for_status()
         return r.json()
 
+    def update_issue_status(self, issue_id: str, status: str) -> dict[str, Any]:
+        """Convenience wrapper: update only the issue status."""
+        return self.update_issue(issue_id, status=status)
+
+    def create_issue(
+        self,
+        title: str,
+        description: str = "",
+        status: str = "todo",
+    ) -> dict[str, Any]:
+        """Create a new issue in the workspace (used by integration tests)."""
+        r = self._session.post(
+            f"{self.server_url}/api/issues",
+            params={"workspace_id": self.workspace_id},
+            json={"title": title, "description": description, "status": status},
+            timeout=self.timeout,
+        )
+        r.raise_for_status()
+        return r.json()
+
     # ---- comments ----------------------------------------------------------
 
     def list_comments(self, issue_id: str) -> list[dict[str, Any]]:

src/coordinator/orchestrator.py

@@ -0,0 +1,577 @@
+"""Debate round orchestration (WYL-45).
+
+Round lifecycle
+---------------
+  pending  → _start_round()           → running / phase=awaiting_debaters
+  awaiting_debaters → _advance_awaiting_debaters()
+                      all replied (or timeout) → phase=awaiting_judge
+  awaiting_judge    → _advance_awaiting_judge()
+                      verdict received → issue status updated FIRST,
+                                         then round marked done/phase=accepted|rejected
+                      timeout         → round marked error, issue left in_review
+
+Restart safety
+--------------
+  DebateQueue persists phase + comment IDs on every mutation.  On restart,
+  running rounds resume from the correct phase without re-posting comments.
+
+Race fix (WYL-44 note)
+----------------------
+  In _advance_awaiting_judge, client.update_issue_status() is called BEFORE
+  queue.update_status("done").  This guarantees poll_once cannot see
+  (is_issue_pending_or_running=False AND issue=in_review) at the same time.
+"""
+from __future__ import annotations
+
+import logging
+import re
+from datetime import datetime, timezone
+from typing import Any
+
+from coordinator.config import Config
+from coordinator.multica_client import MulticaClient
+from coordinator.queue import DebateQueue, Round
+
+# ---------------------------------------------------------------------------
+# Hardcoded v1 constants
+# ---------------------------------------------------------------------------
+
+DEBATER_NAMES: list[str] = [
+    "Senior Developer",
+    "Code Reviewer",
+    "AI Engineer",
+    "Project Manager Senior",
+]
+
+JUDGE_NAME: str = "Reality Checker"
+
+# Per-debater evidence prompts.
+# Placeholders: {issue_title}, {issue_description}, {commit_url}
+# Each prompt tells the debater exactly which tool output to ground its argument in.
+DEBATER_PROMPTS: dict[str, str] = {
+    "Senior Developer": (
+        "**Your task:** grep the committed code for LLM API calls "
+        "(`openai`, `anthropic`, `requests.post` to AI endpoints, etc.). Report:\n"
+        "1. Yes/no — does the code make LLM API calls?\n"
+        "2. The exact grep command you ran.\n"
+        "3. The full grep output (or 'no matches').\n\n"
+        "Max 300 words."
+    ),
+    "Code Reviewer": (
+        "**Your task:** diff the committed implementation method-by-method against "
+        "every requirement in the issue description. For each requirement: state it, "
+        "then label MET or MISSING with one line of evidence from the diff. "
+        "Overall confidence: high / medium / low.\n\n"
+        "Max 300 words."
+    ),
+    "AI Engineer": (
+        "**Your task:** ground-check every factual claim in the issue description "
+        "against the committed code. For each claim: state it, then verify or refute "
+        "with a direct code reference. Label each VERIFIED or UNVERIFIED.\n\n"
+        "Max 300 words."
+    ),
+    "Project Manager Senior": (
+        "**Your task:** check the committed work against the original acceptance "
+        "criteria. For each criterion: satisfied (with evidence) or not met. "
+        "State your recommendation: ACCEPT or REJECT.\n\n"
+        "Max 300 words."
+    ),
+}
+
+JUDGE_PROMPT_TEMPLATE: str = """\
+**Verdict requested — {issue_title}**
+
+**Original issue:**
+{issue_description}
+
+**Commit:** {commit_url}
+
+---
+## Debater evidence
+
+{transcript}
+---
+
+Deliver your verdict. Begin your reply with exactly one of:
+- `VERDICT: ACCEPT` — implementation satisfies all critical acceptance criteria
+- `VERDICT: REJECT` — it does not
+
+Follow with reasoning (max 400 words).\
+"""
+
+_COMMIT_URL_RE = re.compile(
+    r"https?://\S+/commit/[0-9a-f]+", re.IGNORECASE
+)
+_VERDICT_RE = re.compile(
+    r"^VERDICT:\s*(ACCEPT|REJECT)", re.MULTILINE | re.IGNORECASE
+)
+
+
+# ---------------------------------------------------------------------------
+# Internal helpers
+# ---------------------------------------------------------------------------
+
+def _utcnow() -> str:
+    return datetime.now(timezone.utc).strftime("%Y-%m-%dT%H:%M:%SZ")
+
+
+def _parse_dt(iso: str) -> datetime:
+    return datetime.fromisoformat(iso.replace("Z", "+00:00"))
+
+
+def _elapsed_s(since_iso: str) -> float:
+    """Seconds elapsed since an ISO8601 timestamp.  Returns 0 on parse error."""
+    if not since_iso:
+        return 0.0
+    try:
+        return (datetime.now(timezone.utc) - _parse_dt(since_iso)).total_seconds()
+    except Exception:
+        return 0.0
+
+
+def _find_commit_url(comments: list[dict[str, Any]]) -> str:
+    """Scan comments newest-first for a commit URL.  Returns '' if not found."""
+    for comment in reversed(comments):
+        m = _COMMIT_URL_RE.search(comment.get("content", ""))
+        if m:
+            return m.group(0)
+    return ""
+
+
+def _parse_verdict(content: str) -> str | None:
+    """Return 'ACCEPT', 'REJECT', or None."""
+    m = _VERDICT_RE.search(content)
+    return m.group(1).upper() if m else None
+
+
+def _cutoff_iso(comments: list[dict[str, Any]], after_comment_id: str) -> str:
+    """Return the created_at of the comment with the given ID, or '' if not found."""
+    for c in comments:
+        if c.get("id") == after_comment_id:
+            return c.get("created_at", "")
+    return ""
+
+
+def _collect_debater_replies(
+    comments: list[dict[str, Any]],
+    agent_map: dict[str, str],   # name → agent_id
+    after_comment_id: str,
+) -> dict[str, str]:
+    """Return {debater_name: reply_content} for debaters who replied.
+
+    Detection (in priority order):
+      1. comment.author_id matches a debater's agent_id
+      2. comment content starts with ``[{name} response]:`` (fallback for testing)
+
+    Only comments posted *after* after_comment_id are considered.
+    """
+    id_to_name: dict[str, str] = {v: k for k, v in agent_map.items()}
+    cutoff = _cutoff_iso(comments, after_comment_id)
+    replies: dict[str, str] = {}
+
+    for comment in comments:
+        # Skip the coordinator's own mention comment and anything before it.
+        if comment.get("id") == after_comment_id:
+            continue
+        created = comment.get("created_at", "")
+        if cutoff and created < cutoff:
+            continue
+
+        content = comment.get("content", "")
+        author_id = comment.get("author_id", "")
+
+        # Primary: agent ID match
+        if author_id in id_to_name:
+            name = id_to_name[author_id]
+            if name not in replies:
+                replies[name] = content
+            continue
+
+        # Fallback: content-based marker (enables integration / smoke tests)
+        for name in DEBATER_NAMES:
+            marker = f"[{name} response]:".lower()
+            if content.strip().lower().startswith(marker) and name not in replies:
+                replies[name] = content
+
+    return replies
+
+
+def _collect_judge_reply(
+    comments: list[dict[str, Any]],
+    judge_agent_id: str,
+    after_comment_id: str,
+) -> str | None:
+    """Return judge's comment content if found after after_comment_id, else None.
+
+    Fallback: any comment containing ``VERDICT: ACCEPT|REJECT`` is accepted
+    (enables smoke / integration tests where the judge is impersonated).
+    """
+    cutoff = _cutoff_iso(comments, after_comment_id)
+
+    for comment in comments:
+        if comment.get("id") == after_comment_id:
+            continue
+        created = comment.get("created_at", "")
+        if cutoff and created < cutoff:
+            continue
+
+        content = comment.get("content", "")
+        author_id = comment.get("author_id", "")
+
+        if judge_agent_id and author_id == judge_agent_id:
+            return content
+
+        # Fallback: content-based verdict detection
+        if _parse_verdict(content) is not None:
+            return content
+
+    return None
+
+
+def _build_debater_comment(
+    agent_map: dict[str, str],
+    issue_title: str,
+    issue_description: str,
+    commit_url: str,
+) -> str:
+    commit_ref = commit_url or "(no commit link found in comments)"
+    parts = [
+        f"**Debate round opened — {issue_title}**\n",
+        f"Commit under review: {commit_ref}\n",
+        "---",
+    ]
+    for name in DEBATER_NAMES:
+        agent_id = agent_map.get(name, "")
+        mention = (
+            f"[@{name}](mention://agent/{agent_id})" if agent_id else f"@{name}"
+        )
+        prompt = DEBATER_PROMPTS.get(name, "Please provide your evidence analysis.")
+        snippet = issue_description[:800].strip()
+        parts.append(
+            f"\n{mention}\n\n"
+            f"**Issue:** {issue_title}\n"
+            f"**Description (excerpt):** {snippet}\n"
+            f"**Commit:** {commit_ref}\n\n"
+            f"{prompt}"
+        )
+        parts.append("\n---")
+    return "\n".join(parts)
+
+
+def _build_judge_comment(
+    judge_agent_id: str,
+    issue_title: str,
+    issue_description: str,
+    commit_url: str,
+    transcript: str,
+) -> str:
+    mention = (
+        f"[@{JUDGE_NAME}](mention://agent/{judge_agent_id})"
+        if judge_agent_id
+        else f"@{JUDGE_NAME}"
+    )
+    body = JUDGE_PROMPT_TEMPLATE.format(
+        issue_title=issue_title,
+        issue_description=issue_description[:2000].strip(),
+        commit_url=commit_url or "N/A",
+        transcript=transcript,
+    )
+    return f"{mention}\n\n{body}"
+
+
+# ---------------------------------------------------------------------------
+# Phase handlers
+# ---------------------------------------------------------------------------
+
+def _start_round(
+    round_: Round,
+    client: MulticaClient,
+    queue: DebateQueue,
+    cfg: Config,
+    logger: logging.Logger,
+) -> None:
+    """pending → running, post debater comment, phase → awaiting_debaters."""
+    logger.info("starting round %s for %s", round_.round_id, round_.identifier)
+
+    # Mark running immediately so poll_once won't double-enqueue on a bump.
+    queue.update_status(round_.round_id, "running")
+
+    try:
+        issue = client.get_issue(round_.issue_id)
+    except Exception as exc:
+        logger.error("round %s: cannot fetch issue %s: %s", round_.round_id, round_.issue_id, exc)
+        queue.update_status(round_.round_id, "error")
+        return
+
+    issue_title = issue.get("title", round_.title)
+    issue_description = issue.get("description", "") or ""
+
+    try:
+        all_comments = client.list_comments(round_.issue_id)
+    except Exception as exc:
+        logger.warning("round %s: cannot list comments: %s", round_.round_id, exc)
+        all_comments = []
+
+    commit_url = _find_commit_url(all_comments)
+
+    try:
+        agent_map = client.find_agents_by_name(DEBATER_NAMES)
+    except Exception as exc:
+        logger.warning("round %s: cannot look up debater agents: %s", round_.round_id, exc)
+        agent_map = {}
+
+    body = _build_debater_comment(agent_map, issue_title, issue_description, commit_url)
+    try:
+        posted = client.post_comment(round_.issue_id, body)
+        coord_cid = posted.get("id", "")
+    except Exception as exc:
+        logger.error("round %s: cannot post debater mention comment: %s", round_.round_id, exc)
+        queue.update_status(round_.round_id, "error")
+        return
+
+    queue.update_phase(
+        round_.round_id,
+        "awaiting_debaters",
+        phase_entered_at=_utcnow(),
+        coordinator_comment_id=coord_cid,
+    )
+    logger.info(
+        "round %s: debater comment posted (id=%s), awaiting debaters",
+        round_.round_id, coord_cid,
+    )
+
+
+def _advance_awaiting_debaters(
+    round_: Round,
+    client: MulticaClient,
+    queue: DebateQueue,
+    cfg: Config,
+    logger: logging.Logger,
+) -> None:
+    """Poll debater replies → on all-replied or timeout, post judge comment."""
+    elapsed = _elapsed_s(round_.phase_entered_at)
+    timed_out = elapsed >= cfg.round_timeout_s
+
+    try:
+        comments = client.list_comments(round_.issue_id)
+    except Exception as exc:
+        logger.error("round %s: cannot list comments: %s", round_.round_id, exc)
+        return
+
+    try:
+        issue = client.get_issue(round_.issue_id)
+    except Exception as exc:
+        logger.warning("round %s: cannot fetch issue: %s", round_.round_id, exc)
+        issue = {}
+
+    issue_title = issue.get("title", round_.title)
+    issue_description = issue.get("description", "") or ""
+    commit_url = _find_commit_url(comments)
+
+    try:
+        agent_map = client.find_agents_by_name(DEBATER_NAMES)
+    except Exception as exc:
+        logger.warning("round %s: cannot look up debater agents: %s", round_.round_id, exc)
+        agent_map = {}
+
+    replies = _collect_debater_replies(
+        comments, agent_map, round_.coordinator_comment_id
+    )
+    missing = [n for n in DEBATER_NAMES if n not in replies]
+
+    if missing and not timed_out:
+        logger.debug(
+            "round %s: still waiting for debaters %s (%.0fs / %ds)",
+            round_.round_id, missing, elapsed, cfg.round_timeout_s,
+        )
+        return
+
+    if missing:
+        logger.warning(
+            "round %s: debater timeout after %.0fs — proceeding with partial evidence "
+            "(missing: %s)",
+            round_.round_id, elapsed, missing,
+        )
+    else:
+        logger.info(
+            "round %s: all %d debaters replied, assembling transcript",
+            round_.round_id, len(DEBATER_NAMES),
+        )
+
+    # Assemble transcript
+    parts = []
+    for name in DEBATER_NAMES:
+        if name in replies:
+            parts.append(f"### {name}\n\n{replies[name]}")
+        else:
+            parts.append(f"### {name}\n\n*(no response — timed out)*")
+    transcript = "\n\n".join(parts)
+
+    try:
+        judge_map = client.find_agents_by_name([JUDGE_NAME])
+        judge_agent_id = judge_map.get(JUDGE_NAME, "")
+    except Exception as exc:
+        logger.warning("round %s: cannot look up judge agent: %s", round_.round_id, exc)
+        judge_agent_id = ""
+
+    judge_body = _build_judge_comment(
+        judge_agent_id, issue_title, issue_description, commit_url, transcript
+    )
+    try:
+        posted = client.post_comment(round_.issue_id, judge_body)
+        judge_cid = posted.get("id", "")
+    except Exception as exc:
+        logger.error("round %s: cannot post judge comment: %s", round_.round_id, exc)
+        return
+
+    queue.update_phase(
+        round_.round_id,
+        "awaiting_judge",
+        phase_entered_at=_utcnow(),
+        judge_comment_id=judge_cid,
+    )
+    logger.info(
+        "round %s: judge comment posted (id=%s), awaiting verdict",
+        round_.round_id, judge_cid,
+    )
+
+
+def _advance_awaiting_judge(
+    round_: Round,
+    client: MulticaClient,
+    queue: DebateQueue,
+    cfg: Config,
+    logger: logging.Logger,
+) -> None:
+    """Poll for judge verdict.
+
+    On verdict: update issue status FIRST (race fix), then mark round done.
+    On timeout: mark round error, leave issue in_review for human escalation.
+    """
+    elapsed = _elapsed_s(round_.phase_entered_at)
+    if elapsed >= cfg.round_timeout_s:
+        logger.error(
+            "round %s: judge timeout after %.0fs — leaving issue in_review for human escalation",
+            round_.round_id, elapsed,
+        )
+        queue.update_phase(round_.round_id, "error")
+        queue.update_status(round_.round_id, "error")
+        return
+
+    try:
+        comments = client.list_comments(round_.issue_id)
+    except Exception as exc:
+        logger.error("round %s: cannot list comments: %s", round_.round_id, exc)
+        return
+
+    try:
+        judge_map = client.find_agents_by_name([JUDGE_NAME])
+        judge_agent_id = judge_map.get(JUDGE_NAME, "")
+    except Exception as exc:
+        logger.warning("round %s: cannot look up judge agent: %s", round_.round_id, exc)
+        judge_agent_id = ""
+
+    judge_reply = _collect_judge_reply(
+        comments, judge_agent_id, round_.judge_comment_id
+    )
+
+    if judge_reply is None:
+        logger.debug(
+            "round %s: waiting for judge verdict (%.0fs / %ds)",
+            round_.round_id, elapsed, cfg.round_timeout_s,
+        )
+        return
+
+    verdict = _parse_verdict(judge_reply)
+    if verdict is None:
+        logger.warning(
+            "round %s: judge replied but no VERDICT: ACCEPT/REJECT found — treating as REJECT",
+            round_.round_id,
+        )
+        verdict = "REJECT"
+
+    new_issue_status = "done" if verdict == "ACCEPT" else "in_progress"
+    logger.info(
+        "round %s: verdict=%s → issue status=%s",
+        round_.round_id, verdict, new_issue_status,
+    )
+
+    # RACE FIX: issue status MUST be updated before marking round done.
+    # If poll_once runs after this line, the issue is no longer in_review,
+    # so no double-enqueue is possible regardless of round status.
+    try:
+        client.update_issue_status(round_.issue_id, new_issue_status)
+    except Exception as exc:
+        logger.error(
+            "round %s: cannot update issue status — will retry next cycle: %s",
+            round_.round_id, exc,
+        )
+        return  # do NOT mark done; retry next cycle
+
+    phase = "accepted" if verdict == "ACCEPT" else "rejected"
+    queue.update_phase(round_.round_id, phase)
+    queue.update_status(round_.round_id, "done")
+    logger.info("round %s: complete (phase=%s)", round_.round_id, phase)
+
+
+def _advance_round(
+    round_: Round,
+    client: MulticaClient,
+    queue: DebateQueue,
+    cfg: Config,
+    logger: logging.Logger,
+) -> None:
+    """Dispatch to the correct phase handler for a running round."""
+    if round_.phase == "convened":
+        # Should be caught by _start_round, but handle gracefully on restart.
+        _start_round(round_, client, queue, cfg, logger)
+    elif round_.phase == "awaiting_debaters":
+        _advance_awaiting_debaters(round_, client, queue, cfg, logger)
+    elif round_.phase == "awaiting_judge":
+        _advance_awaiting_judge(round_, client, queue, cfg, logger)
+    elif round_.phase in ("accepted", "rejected", "error"):
+        # Terminal phase but status still running — fix it.
+        logger.warning(
+            "round %s is in terminal phase %r but status=%r — correcting",
+            round_.round_id, round_.phase, round_.status,
+        )
+        final = "done" if round_.phase in ("accepted", "rejected") else "error"
+        queue.update_status(round_.round_id, final)
+    else:
+        logger.error("round %s: unknown phase %r", round_.round_id, round_.phase)
+
+
+# ---------------------------------------------------------------------------
+# Public entry point
+# ---------------------------------------------------------------------------
+
+def orchestrate_pending(
+    queue: DebateQueue,
+    cfg: Config,
+    logger: logging.Logger,
+    client: MulticaClient | None = None,
+) -> None:
+    """Process pending and in-flight debate rounds.
+
+    Called from watch_loop after each poll_once.  Idempotent and restart-safe:
+    running rounds resume from their persisted phase.
+
+    ``client`` may be injected for testing; if omitted a real client is created
+    from cfg.
+    """
+    if client is None:
+        client = MulticaClient(cfg.server_url, cfg.workspace_id, cfg.token)
+
+    # Start any pending rounds (pending → running/awaiting_debaters).
+    for round_ in list(queue.pending()):
+        try:
+            _start_round(round_, client, queue, cfg, logger)
+        except Exception as exc:
+            logger.error("error starting round %s: %s", round_.round_id, exc)
+
+    # Advance all running rounds (covers newly-started and in-flight).
+    for round_ in list(queue.running()):
+        try:
+            _advance_round(round_, client, queue, cfg, logger)
+        except Exception as exc:
+            logger.error("error advancing round %s: %s", round_.round_id, exc)

src/coordinator/queue.py

@@ -8,16 +8,23 @@ Schema  (~/.coordinator/queue.json):
         {
           "round_id":             "<uuid>",
           "issue_id":             "<uuid>",
-          "identifier":  "WYL-42",     # human-readable, for logs
+          "identifier":           "WYL-42",
           "title":                "...",
           "enqueued_at":          "<iso8601>",
-          "status":      "pending"     # pending | running | done | error
+          "status":               "pending",
+          "phase":                "convened",
+          "phase_entered_at":     "",
+          "coordinator_comment_id": "",
+          "judge_comment_id":     ""
         },
         ...
       ]
     }
 
-Only the watcher appends; only the orchestrator updates status.
+status: pending | running | done | error
+phase:  convened | awaiting_debaters | awaiting_judge | accepted | rejected | error
+
+Only the watcher appends; only the orchestrator updates status/phase.
 Completed/errored rounds stay in the file so it stays fully auditable.
 """
 from __future__ import annotations
@@ -42,6 +49,10 @@ class Round:
     title: str
     enqueued_at: str
     status: str = "pending"   # pending | running | done | error
+    phase: str = "convened"   # convened | awaiting_debaters | awaiting_judge | accepted | rejected | error
+    phase_entered_at: str = ""          # ISO8601 when current phase was entered (for timeout)
+    coordinator_comment_id: str = ""    # ID of debater-mention comment posted by coordinator
+    judge_comment_id: str = ""          # ID of judge-mention comment posted by coordinator
 
     def to_dict(self) -> dict[str, Any]:
         return asdict(self)
@@ -55,6 +66,10 @@ class Round:
             title=d.get("title", ""),
             enqueued_at=d["enqueued_at"],
             status=d.get("status", "pending"),
+            phase=d.get("phase", "convened"),
+            phase_entered_at=d.get("phase_entered_at", ""),
+            coordinator_comment_id=d.get("coordinator_comment_id", ""),
+            judge_comment_id=d.get("judge_comment_id", ""),
         )
 
 
@@ -113,12 +128,36 @@ class DebateQueue:
                 return
         raise KeyError(f"round {round_id!r} not found in queue")
 
+    def update_phase(self, round_id: str, phase: str, **kwargs: str) -> None:
+        """Update round phase (and optionally other string fields) in place and persist.
+
+        Extra keyword arguments are applied as field updates when the field exists on Round.
+        Typical usage::
+
+            queue.update_phase(rid, "awaiting_debaters",
+                               phase_entered_at="2026-01-01T00:00:00Z",
+                               coordinator_comment_id="abc123")
+        """
+        for r in self.rounds:
+            if r.round_id == round_id:
+                r.phase = phase
+                for k, v in kwargs.items():
+                    if hasattr(r, k):
+                        setattr(r, k, v)
+                self.save()
+                return
+        raise KeyError(f"round {round_id!r} not found in queue")
+
     # ---- read ops ----------------------------------------------------------
 
     def pending(self) -> list[Round]:
         """Return all rounds still waiting to be orchestrated."""
         return [r for r in self.rounds if r.status == "pending"]
 
+    def running(self) -> list[Round]:
+        """Return all rounds currently being orchestrated."""
+        return [r for r in self.rounds if r.status == "running"]
+
     def is_issue_pending_or_running(self, issue_id: str) -> bool:
         """True if a round for this issue is already in the queue and active."""
         return any(

tests/test_integration.py

@@ -0,0 +1,211 @@
+"""Integration tests for the debate round orchestration.
+
+These tests hit the REAL multica API.  They require the coordinator env vars:
+
+    COORDINATOR_SERVER_URL   e.g. https://multica.example.com
+    COORDINATOR_WORKSPACE_ID
+    COORDINATOR_TOKEN
+
+Run with:
+    python -m pytest tests/test_integration.py -m integration -v
+
+The test creates a scratch issue, exercises the full orchestration lifecycle
+with simulated debater/judge responses (posted via the coordinator's own token
+using the content-based fallback detector), verifies the result, then cleans up.
+"""
+from __future__ import annotations
+
+import logging
+import os
+import time
+from pathlib import Path
+
+import pytest
+
+pytestmark = pytest.mark.integration
+
+
+# ---------------------------------------------------------------------------
+# Fixtures
+# ---------------------------------------------------------------------------
+
+@pytest.fixture(scope="module")
+def cfg():
+    """Load Config from env.  Skip module if vars missing."""
+    required = [
+        "COORDINATOR_SERVER_URL",
+        "COORDINATOR_WORKSPACE_ID",
+        "COORDINATOR_TOKEN",
+    ]
+    missing = [k for k in required if not os.environ.get(k)]
+    if missing:
+        pytest.skip(
+            f"Integration test requires env vars: {', '.join(missing)}\n"
+            "Put them in ~/.coordinator/env or export them."
+        )
+    # Load env file if present (same as Config.from_env)
+    from coordinator.config import load_env_file
+    load_env_file()
+    from coordinator.config import Config
+    return Config.from_env()
+
+
+@pytest.fixture(scope="module")
+def client(cfg):
+    from coordinator.multica_client import MulticaClient
+    return MulticaClient(cfg.server_url, cfg.workspace_id, cfg.token)
+
+
+# ---------------------------------------------------------------------------
+# Helpers
+# ---------------------------------------------------------------------------
+
+def _post_fake_debater_replies(client, issue_id: str):
+    """Post content-marker comments for each debater via the coordinator token.
+
+    The orchestrator's content-based fallback detector accepts these as valid
+    debater evidence replies.
+    """
+    from coordinator.orchestrator import DEBATER_NAMES
+    for name in DEBATER_NAMES:
+        client.post_comment(
+            issue_id,
+            f"[{name} response]: Integration-test evidence for {name}. "
+            "This comment simulates the agent's evidence analysis.",
+        )
+
+
+def _post_fake_judge_verdict(client, issue_id: str, verdict: str = "ACCEPT"):
+    client.post_comment(
+        issue_id,
+        f"VERDICT: {verdict}\n\n"
+        "Integration test verdict. The implementation satisfies the acceptance criteria.",
+    )
+
+
+# ---------------------------------------------------------------------------
+# Integration test: full round lifecycle
+# ---------------------------------------------------------------------------
+
+@pytest.mark.integration
+def test_full_debate_round_lifecycle(cfg, client, tmp_path):
+    """End-to-end debate round lifecycle against the real API.
+
+    Steps:
+      1. Create scratch issue, set to in_review
+      2. poll_once → verify round enqueued
+      3. _start_round → verify coordinator comment posted on real issue
+      4. Post simulated debater responses (content-marker fallback)
+      5. _advance_awaiting_debaters → verify judge comment posted
+      6. Post simulated judge verdict
+      7. _advance_awaiting_judge → verify issue status updated (RACE FIX verified)
+      8. Cleanup
+    """
+    from coordinator.__main__ import poll_once
+    from coordinator.orchestrator import (
+        DEBATER_NAMES,
+        _advance_awaiting_debaters,
+        _advance_awaiting_judge,
+        _start_round,
+    )
+    from coordinator.queue import DebateQueue
+    from coordinator.state import SeenState
+
+    logger = logging.getLogger("test.integration")
+    issue_id = None
+
+    try:
+        # --- 1. Create scratch issue ---
+        issue = client.create_issue(
+            title="[DEBATE-SMOKE-TEST] Integration test — auto-delete",
+            description=(
+                "This issue is created by the coordinator integration test. "
+                "It will be cleaned up automatically.\n\n"
+                "Commit: https://git.wylab.me/multica/coordinator/commit/test000"
+            ),
+        )
+        issue_id = issue["id"]
+        logger.info("created scratch issue %s", issue_id)
+
+        # Set to in_review so the watcher picks it up
+        client.update_issue_status(issue_id, "in_review")
+
+        # --- 2. poll_once → enqueue round ---
+        state = SeenState.load(tmp_path / "seen.json")
+        queue = DebateQueue.load(tmp_path / "queue.json")
+        poll_once(client, state, queue, logger)
+
+        assert queue.pending(), "Expected round enqueued after poll_once"
+        round_ = queue.pending()[0]
+        assert round_.issue_id == issue_id
+        assert round_.status == "pending"
+
+        # --- 3. _start_round → debater comment posted ---
+        _start_round(round_, client, queue, cfg, logger)
+
+        assert round_.status == "running", f"Expected running, got {round_.status}"
+        assert round_.phase == "awaiting_debaters", f"Expected awaiting_debaters, got {round_.phase}"
+        assert round_.coordinator_comment_id, "coordinator_comment_id must be set"
+
+        # Verify comment appeared on the real issue
+        real_comments = client.list_comments(issue_id)
+        coord_comment = next(
+            (c for c in real_comments if c.get("id") == round_.coordinator_comment_id),
+            None,
+        )
+        assert coord_comment is not None, "Coordinator comment not found in issue comments"
+        for name in DEBATER_NAMES:
+            assert name in coord_comment["content"], f"{name} not mentioned in coordinator comment"
+
+        # --- 4. Post simulated debater responses ---
+        _post_fake_debater_replies(client, issue_id)
+
+        # --- 5. _advance_awaiting_debaters → judge comment posted ---
+        _advance_awaiting_debaters(round_, client, queue, cfg, logger)
+
+        assert round_.phase == "awaiting_judge", f"Expected awaiting_judge, got {round_.phase}"
+        assert round_.judge_comment_id, "judge_comment_id must be set"
+
+        real_comments = client.list_comments(issue_id)
+        judge_comment = next(
+            (c for c in real_comments if c.get("id") == round_.judge_comment_id),
+            None,
+        )
+        assert judge_comment is not None, "Judge comment not found in issue comments"
+        assert "Verdict requested" in judge_comment["content"]
+
+        # --- 6. Post simulated judge verdict ---
+        _post_fake_judge_verdict(client, issue_id, verdict="ACCEPT")
+
+        # --- 7. _advance_awaiting_judge → issue status updated ---
+        _advance_awaiting_judge(round_, client, queue, cfg, logger)
+
+        assert round_.status == "done", f"Expected done, got {round_.status}"
+        assert round_.phase == "accepted", f"Expected accepted, got {round_.phase}"
+
+        # Verify issue status via real API (not just in-memory)
+        refreshed = client.get_issue(issue_id)
+        assert refreshed.get("status") == "done", (
+            f"Issue status should be 'done' after ACCEPT verdict, "
+            f"got {refreshed.get('status')!r}"
+        )
+
+        # RACE FIX: after _advance_awaiting_judge completes, issue is no longer in_review,
+        # so poll_once cannot double-enqueue this round.
+        # Note: other in_review issues in the workspace may also get enqueued — that's OK.
+        poll_once(client, state, queue, logger)
+        our_rounds = [r for r in queue.rounds if r.issue_id == issue_id]
+        assert len(our_rounds) == 1, (
+            f"poll_once created a second round for issue {issue_id} (double-enqueue)"
+        )
+
+        logger.info("VERDICT OK — full lifecycle passed")
+
+    finally:
+        # --- 8. Cleanup ---
+        if issue_id:
+            try:
+                client.update_issue_status(issue_id, "done")
+                logger.info("cleanup: issue %s set to done", issue_id)
+            except Exception as exc:
+                logger.warning("cleanup failed for issue %s: %s", issue_id, exc)

tests/test_orchestrator.py

@@ -0,0 +1,736 @@
+"""Unit tests for coordinator.orchestrator (WYL-45)."""
+from __future__ import annotations
+
+import logging
+import uuid
+from dataclasses import dataclass, field
+from datetime import datetime, timezone, timedelta
+from pathlib import Path
+from typing import Any
+
+import pytest
+
+from coordinator.orchestrator import (
+    DEBATER_NAMES,
+    JUDGE_NAME,
+    _advance_awaiting_debaters,
+    _advance_awaiting_judge,
+    _collect_debater_replies,
+    _collect_judge_reply,
+    _find_commit_url,
+    _parse_verdict,
+    _start_round,
+    orchestrate_pending,
+)
+from coordinator.queue import DebateQueue, Round
+
+
+# ---------------------------------------------------------------------------
+# Helpers
+# ---------------------------------------------------------------------------
+
+def _utcnow() -> str:
+    return datetime.now(timezone.utc).strftime("%Y-%m-%dT%H:%M:%SZ")
+
+
+def _past(seconds: float) -> str:
+    t = datetime.now(timezone.utc) - timedelta(seconds=seconds)
+    return t.strftime("%Y-%m-%dT%H:%M:%SZ")
+
+
+@dataclass
+class FakeConfig:
+    server_url: str = "http://fake"
+    workspace_id: str = "ws-1"
+    token: str = "tok"
+    poll_interval_s: int = 30
+    round_timeout_s: int = 600
+    max_concurrent_rounds: int = 3
+    seen_file: Path = Path("/tmp/seen.json")
+    queue_file: Path = Path("/tmp/queue.json")
+    log_file: Path = Path("/tmp/coordinator.log")
+
+
+@dataclass
+class FakeClient:
+    """Controllable stand-in for MulticaClient."""
+
+    issue: dict[str, Any] = field(default_factory=lambda: {
+        "id": "issue-1",
+        "title": "Test issue",
+        "description": "Test description. Commit: https://git.example.com/commit/abc123",
+        "status": "in_review",
+    })
+    comments: list[dict[str, Any]] = field(default_factory=list)
+    agents: list[dict[str, Any]] = field(default_factory=list)
+    posted_comments: list[str] = field(default_factory=list)
+    status_updates: list[tuple[str, str]] = field(default_factory=list)
+    post_comment_returns_id: str = "comment-coord"
+
+    def get_issue(self, issue_id: str) -> dict[str, Any]:
+        return self.issue
+
+    def list_comments(self, issue_id: str) -> list[dict[str, Any]]:
+        return list(self.comments)
+
+    def post_comment(self, issue_id: str, content: str) -> dict[str, Any]:
+        self.posted_comments.append(content)
+        cid = self.post_comment_returns_id
+        # Advance the ID for subsequent calls
+        self.post_comment_returns_id = "comment-" + str(len(self.posted_comments))
+        ts = _utcnow()
+        new_comment = {"id": cid, "content": content, "created_at": ts,
+                       "author_id": "coord", "author_type": "member"}
+        self.comments.append(new_comment)
+        return new_comment
+
+    def list_agents(self) -> list[dict[str, Any]]:
+        return list(self.agents)
+
+    def find_agents_by_name(self, names) -> dict[str, str]:
+        wanted = set(names)
+        return {a["name"]: a["id"] for a in self.agents if a["name"] in wanted}
+
+    def update_issue_status(self, issue_id: str, status: str) -> dict[str, Any]:
+        self.status_updates.append((issue_id, status))
+        self.issue["status"] = status
+        return self.issue
+
+    def update_issue(self, issue_id: str, **fields: Any) -> dict[str, Any]:
+        self.issue.update(fields)
+        return self.issue
+
+
+def _make_round(
+    *,
+    status: str = "pending",
+    phase: str = "convened",
+    phase_entered_at: str = "",
+    coordinator_comment_id: str = "",
+    judge_comment_id: str = "",
+) -> Round:
+    return Round(
+        round_id=str(uuid.uuid4()),
+        issue_id="issue-1",
+        identifier="WYL-99",
+        title="Test issue",
+        enqueued_at=_utcnow(),
+        status=status,
+        phase=phase,
+        phase_entered_at=phase_entered_at or _utcnow(),
+        coordinator_comment_id=coordinator_comment_id,
+        judge_comment_id=judge_comment_id,
+    )
+
+
+def _make_queue(tmp_path: Path, *rounds: Round) -> DebateQueue:
+    q = DebateQueue.load(tmp_path / "queue.json")
+    for r in rounds:
+        q.rounds.append(r)
+    q.save()
+    return q
+
+
+_logger = logging.getLogger("test.orchestrator")
+
+
+# ---------------------------------------------------------------------------
+# _parse_verdict
+# ---------------------------------------------------------------------------
+
+def test_parse_verdict_accept():
+    assert _parse_verdict("VERDICT: ACCEPT\n\nGreat work.") == "ACCEPT"
+
+
+def test_parse_verdict_reject():
+    assert _parse_verdict("VERDICT: REJECT\n\nMissing tests.") == "REJECT"
+
+
+def test_parse_verdict_case_insensitive():
+    assert _parse_verdict("verdict: accept") == "ACCEPT"
+
+
+def test_parse_verdict_none_when_absent():
+    assert _parse_verdict("No verdict here.") is None
+
+
+# ---------------------------------------------------------------------------
+# _find_commit_url
+# ---------------------------------------------------------------------------
+
+def test_find_commit_url_found():
+    comments = [
+        {"content": "Watcher implemented. Commit: https://git.example.com/multica/foo/commit/abc123"},
+    ]
+    assert _find_commit_url(comments) == "https://git.example.com/multica/foo/commit/abc123"
+
+
+def test_find_commit_url_returns_last():
+    comments = [
+        {"content": "Commit: https://git.example.com/multica/foo/commit/aaa111"},
+        {"content": "Follow-up commit: https://git.example.com/multica/foo/commit/bbb222"},
+    ]
+    assert _find_commit_url(comments) == "https://git.example.com/multica/foo/commit/bbb222"
+
+
+def test_find_commit_url_empty_when_absent():
+    assert _find_commit_url([{"content": "No link here."}]) == ""
+
+
+# ---------------------------------------------------------------------------
+# _collect_debater_replies
+# ---------------------------------------------------------------------------
+
+def _make_comment(
+    cid: str,
+    content: str,
+    author_id: str = "anon",
+    ts: str = "",
+) -> dict[str, Any]:
+    return {
+        "id": cid,
+        "content": content,
+        "author_id": author_id,
+        "author_type": "agent",
+        "created_at": ts or _utcnow(),
+    }
+
+
+def test_collect_replies_by_agent_id():
+    cutoff_ts = _past(10)
+    agent_map = {"Senior Developer": "agent-sd"}
+    comments = [
+        {"id": "coord", "content": "Debate opened", "author_id": "coord",
+         "author_type": "member", "created_at": cutoff_ts},
+        _make_comment("c1", "Evidence here.", author_id="agent-sd",
+                      ts=_utcnow()),
+    ]
+    replies = _collect_debater_replies(comments, agent_map, "coord")
+    assert "Senior Developer" in replies
+
+
+def test_collect_replies_content_fallback():
+    """Content-based marker accepted when agent ID not in map."""
+    cutoff_ts = _past(10)
+    agent_map = {}
+    comments = [
+        {"id": "coord", "content": "Debate opened", "author_id": "coord",
+         "author_type": "member", "created_at": cutoff_ts},
+        _make_comment(
+            "c1",
+            "[Senior Developer response]: grep output here.",
+            author_id="someone-else",
+            ts=_utcnow(),
+        ),
+    ]
+    replies = _collect_debater_replies(comments, agent_map, "coord")
+    assert "Senior Developer" in replies
+
+
+def test_collect_replies_skips_before_cutoff():
+    """Comments before coordinator's mention are ignored."""
+    early = _past(20)
+    cutoff_ts = _past(10)
+    agent_map = {"Senior Developer": "agent-sd"}
+    comments = [
+        _make_comment("early", "Early reply", author_id="agent-sd", ts=early),
+        {"id": "coord", "content": "Debate opened", "author_id": "coord",
+         "author_type": "member", "created_at": cutoff_ts},
+    ]
+    replies = _collect_debater_replies(comments, agent_map, "coord")
+    assert "Senior Developer" not in replies
+
+
+def test_collect_replies_no_duplicate_per_debater():
+    cutoff_ts = _past(10)
+    agent_map = {"Senior Developer": "agent-sd"}
+    comments = [
+        {"id": "coord", "content": "x", "author_id": "coord",
+         "author_type": "member", "created_at": cutoff_ts},
+        _make_comment("c1", "First reply", author_id="agent-sd", ts=_utcnow()),
+        _make_comment("c2", "Second reply", author_id="agent-sd", ts=_utcnow()),
+    ]
+    replies = _collect_debater_replies(comments, agent_map, "coord")
+    assert replies["Senior Developer"] == "First reply"
+
+
+# ---------------------------------------------------------------------------
+# _collect_judge_reply
+# ---------------------------------------------------------------------------
+
+def test_collect_judge_reply_by_agent_id():
+    cutoff_ts = _past(10)
+    comments = [
+        {"id": "jc", "content": "Verdict requested", "author_id": "coord",
+         "created_at": cutoff_ts},
+        _make_comment("j1", "VERDICT: ACCEPT\n\nGreat.", author_id="agent-judge",
+                      ts=_utcnow()),
+    ]
+    result = _collect_judge_reply(comments, "agent-judge", "jc")
+    assert result is not None
+    assert "ACCEPT" in result
+
+
+def test_collect_judge_reply_content_fallback():
+    cutoff_ts = _past(10)
+    comments = [
+        {"id": "jc", "content": "x", "author_id": "coord", "created_at": cutoff_ts},
+        _make_comment("j1", "VERDICT: REJECT\n\nMissing tests.", author_id="anyone",
+                      ts=_utcnow()),
+    ]
+    result = _collect_judge_reply(comments, "", "jc")
+    assert result is not None
+    assert "REJECT" in result
+
+
+def test_collect_judge_reply_none_when_absent():
+    cutoff_ts = _past(10)
+    comments = [
+        {"id": "jc", "content": "x", "author_id": "coord", "created_at": cutoff_ts},
+    ]
+    assert _collect_judge_reply(comments, "agent-judge", "jc") is None
+
+
+# ---------------------------------------------------------------------------
+# _start_round
+# ---------------------------------------------------------------------------
+
+def test_start_round_marks_running_before_post(tmp_path):
+    """Status must be 'running' before any API call (early guard against double-enqueue)."""
+    call_order: list[str] = []
+
+    class TrackingQueue(DebateQueue):
+        def update_status(self, round_id, status):
+            call_order.append(f"update_status:{status}")
+            super().update_status(round_id, status)
+
+    class TrackingClient(FakeClient):
+        def post_comment(self, issue_id, content):
+            call_order.append("post_comment")
+            return super().post_comment(issue_id, content)
+
+    r = _make_round()
+    q = TrackingQueue.load(tmp_path / "queue.json")
+    q.rounds.append(r)
+    q.save()
+
+    _start_round(r, TrackingClient(), q, FakeConfig(), _logger)
+
+    # update_status("running") must precede post_comment
+    running_idx = next(i for i, v in enumerate(call_order) if v == "update_status:running")
+    post_idx = next(i for i, v in enumerate(call_order) if v == "post_comment")
+    assert running_idx < post_idx
+
+
+def test_start_round_posts_debater_comment(tmp_path):
+    r = _make_round()
+    q = _make_queue(tmp_path, r)
+    client = FakeClient()
+
+    _start_round(r, client, q, FakeConfig(), _logger)
+
+    assert len(client.posted_comments) == 1
+    comment = client.posted_comments[0]
+    assert "Debate round opened" in comment
+    for name in DEBATER_NAMES:
+        assert name in comment
+
+
+def test_start_round_sets_phase_awaiting_debaters(tmp_path):
+    r = _make_round()
+    q = _make_queue(tmp_path, r)
+
+    _start_round(r, FakeClient(), q, FakeConfig(), _logger)
+
+    assert r.phase == "awaiting_debaters"
+    assert r.status == "running"
+    assert r.coordinator_comment_id  # must be set
+
+
+def test_start_round_error_on_api_failure(tmp_path):
+    class BrokenClient(FakeClient):
+        def post_comment(self, issue_id, content):
+            raise RuntimeError("API down")
+
+    r = _make_round()
+    q = _make_queue(tmp_path, r)
+
+    _start_round(r, BrokenClient(), q, FakeConfig(), _logger)
+
+    assert r.status == "error"
+
+
+# ---------------------------------------------------------------------------
+# _advance_awaiting_debaters — debater replies
+# ---------------------------------------------------------------------------
+
+def _debater_round(tmp_path: Path) -> tuple[Round, DebateQueue, FakeClient]:
+    """Return a round already in awaiting_debaters phase."""
+    r = _make_round(
+        status="running",
+        phase="awaiting_debaters",
+        phase_entered_at=_utcnow(),
+        coordinator_comment_id="coord-comment",
+    )
+    q = _make_queue(tmp_path, r)
+
+    client = FakeClient()
+    # Seed coordinator comment in the comment list
+    client.comments.append({
+        "id": "coord-comment",
+        "content": "Debate opened",
+        "author_id": "coord",
+        "author_type": "member",
+        "created_at": _past(5),
+    })
+    # Seed debater agents
+    client.agents = [{"name": name, "id": f"agent-{i}"} for i, name in enumerate(DEBATER_NAMES)]
+    client.agents.append({"name": JUDGE_NAME, "id": "agent-judge"})
+    return r, q, client
+
+
+def test_advance_debaters_waits_when_not_all_replied(tmp_path):
+    r, q, client = _debater_round(tmp_path)
+
+    _advance_awaiting_debaters(r, client, q, FakeConfig(), _logger)
+
+    # Not enough replies → no judge comment posted
+    assert r.phase == "awaiting_debaters"
+    assert all("Verdict requested" not in c for c in client.posted_comments)
+
+
+def test_advance_debaters_proceeds_when_all_replied(tmp_path):
+    r, q, client = _debater_round(tmp_path)
+
+    # Add a reply from each debater
+    for i, name in enumerate(DEBATER_NAMES):
+        client.comments.append({
+            "id": f"reply-{i}",
+            "content": f"[{name} response]: Evidence here.",
+            "author_id": f"agent-{i}",
+            "author_type": "agent",
+            "created_at": _utcnow(),
+        })
+
+    _advance_awaiting_debaters(r, client, q, FakeConfig(), _logger)
+
+    assert r.phase == "awaiting_judge"
+    assert r.judge_comment_id
+    judge_comment = client.posted_comments[-1]
+    assert "Verdict requested" in judge_comment
+    for name in DEBATER_NAMES:
+        assert name in judge_comment
+
+
+def test_advance_debaters_timeout_with_partial_evidence(tmp_path):
+    """After timeout, proceed with partial evidence (missing debaters noted in transcript)."""
+    r, q, client = _debater_round(tmp_path)
+    # Only one debater replies
+    client.comments.append({
+        "id": "r1",
+        "content": f"[{DEBATER_NAMES[0]} response]: My evidence.",
+        "author_id": "agent-0",
+        "author_type": "agent",
+        "created_at": _utcnow(),
+    })
+    # Simulate timeout by setting phase_entered_at far in the past
+    r.phase_entered_at = _past(700)
+    q.save()
+
+    cfg = FakeConfig()
+    _advance_awaiting_debaters(r, client, q, cfg, _logger)
+
+    assert r.phase == "awaiting_judge"
+    judge_comment = client.posted_comments[-1]
+    assert "timed out" in judge_comment or "no response" in judge_comment
+
+
+# ---------------------------------------------------------------------------
+# _advance_awaiting_judge — verdict handling
+# ---------------------------------------------------------------------------
+
+def _judge_round(tmp_path: Path, *, phase_entered_at: str = "") -> tuple[Round, DebateQueue, FakeClient]:
+    r = _make_round(
+        status="running",
+        phase="awaiting_judge",
+        phase_entered_at=phase_entered_at or _utcnow(),
+        coordinator_comment_id="coord-comment",
+        judge_comment_id="judge-comment",
+    )
+    q = _make_queue(tmp_path, r)
+
+    client = FakeClient()
+    client.agents = [{"name": JUDGE_NAME, "id": "agent-judge"}]
+    client.comments = [
+        {"id": "judge-comment", "content": "Verdict requested",
+         "author_id": "coord", "author_type": "member", "created_at": _past(5)},
+    ]
+    return r, q, client
+
+
+def test_advance_judge_waits_when_no_verdict(tmp_path):
+    r, q, client = _judge_round(tmp_path)
+
+    _advance_awaiting_judge(r, client, q, FakeConfig(), _logger)
+
+    assert r.phase == "awaiting_judge"
+    assert r.status == "running"
+    assert not client.status_updates
+
+
+def test_advance_judge_accept_updates_issue_status_to_done(tmp_path):
+    r, q, client = _judge_round(tmp_path)
+    client.comments.append({
+        "id": "verdict1",
+        "content": "VERDICT: ACCEPT\n\nLooks good.",
+        "author_id": "agent-judge",
+        "author_type": "agent",
+        "created_at": _utcnow(),
+    })
+
+    _advance_awaiting_judge(r, client, q, FakeConfig(), _logger)
+
+    assert r.status == "done"
+    assert r.phase == "accepted"
+    assert client.status_updates == [("issue-1", "done")]
+
+
+def test_advance_judge_reject_updates_issue_status_to_in_progress(tmp_path):
+    r, q, client = _judge_round(tmp_path)
+    client.comments.append({
+        "id": "verdict1",
+        "content": "VERDICT: REJECT\n\nMissing tests.",
+        "author_id": "agent-judge",
+        "author_type": "agent",
+        "created_at": _utcnow(),
+    })
+
+    _advance_awaiting_judge(r, client, q, FakeConfig(), _logger)
+
+    assert r.status == "done"
+    assert r.phase == "rejected"
+    assert client.status_updates == [("issue-1", "in_progress")]
+
+
+def test_advance_judge_timeout_marks_error(tmp_path):
+    """Judge timeout: round → error, issue left in_review for human escalation."""
+    r, q, client = _judge_round(tmp_path, phase_entered_at=_past(700))
+
+    _advance_awaiting_judge(r, client, q, FakeConfig(), _logger)
+
+    assert r.status == "error"
+    assert r.phase == "error"
+    # Issue status must NOT be changed — leave in_review for humans
+    assert not client.status_updates
+
+
+# ---------------------------------------------------------------------------
+# Race condition: issue status before round done  (CRITICAL)
+# ---------------------------------------------------------------------------
+
+def test_issue_status_updated_before_round_marked_done(tmp_path):
+    """RACE FIX: client.update_issue_status MUST precede queue.update_status('done')."""
+    call_order: list[str] = []
+
+    class TrackingClient(FakeClient):
+        def update_issue_status(self, issue_id, status):
+            call_order.append(f"issue:{status}")
+            return super().update_issue_status(issue_id, status)
+
+    class TrackingQueue(DebateQueue):
+        def update_status(self, round_id, status):
+            call_order.append(f"round:{status}")
+            super().update_status(round_id, status)
+
+    r = _make_round(
+        status="running",
+        phase="awaiting_judge",
+        phase_entered_at=_utcnow(),
+        coordinator_comment_id="coord-comment",
+        judge_comment_id="judge-comment",
+    )
+    q = TrackingQueue.load(tmp_path / "queue.json")
+    q.rounds.append(r)
+    q.save()
+
+    client = TrackingClient()
+    client.agents = [{"name": JUDGE_NAME, "id": "agent-judge"}]
+    client.comments = [
+        {"id": "judge-comment", "content": "x", "author_id": "coord",
+         "created_at": _past(5)},
+        {"id": "v1", "content": "VERDICT: ACCEPT\n\nAll good.",
+         "author_id": "agent-judge", "author_type": "agent", "created_at": _utcnow()},
+    ]
+
+    _advance_awaiting_judge(r, client, q, FakeConfig(), _logger)
+
+    # Both calls must have happened
+    assert "issue:done" in call_order
+    assert "round:done" in call_order
+    # Issue status MUST precede round-done
+    assert call_order.index("issue:done") < call_order.index("round:done"), (
+        f"Expected issue:done before round:done, got order: {call_order}"
+    )
+
+
+def test_round_not_marked_done_if_issue_update_fails(tmp_path):
+    """If issue status update fails, don't mark round done (retry next cycle)."""
+
+    class FailingClient(FakeClient):
+        def update_issue_status(self, issue_id, status):
+            raise RuntimeError("network error")
+
+    r = _make_round(
+        status="running",
+        phase="awaiting_judge",
+        phase_entered_at=_utcnow(),
+        coordinator_comment_id="coord-comment",
+        judge_comment_id="judge-comment",
+    )
+    q = _make_queue(tmp_path, r)
+
+    client = FailingClient()
+    client.agents = [{"name": JUDGE_NAME, "id": "agent-judge"}]
+    client.comments = [
+        {"id": "judge-comment", "content": "x", "author_id": "coord", "created_at": _past(5)},
+        {"id": "v1", "content": "VERDICT: ACCEPT", "author_id": "agent-judge",
+         "created_at": _utcnow()},
+    ]
+
+    _advance_awaiting_judge(r, client, q, FakeConfig(), _logger)
+
+    # Round must remain running for retry
+    assert r.status == "running"
+
+
+# ---------------------------------------------------------------------------
+# Phase transitions: full cycle
+# ---------------------------------------------------------------------------
+
+def test_full_phase_cycle(tmp_path):
+    """pending → running/awaiting_debaters → awaiting_judge → accepted/done."""
+    r = _make_round()
+    q = _make_queue(tmp_path, r)
+
+    # Step 1: start_round
+    client = FakeClient()
+    client.agents = [
+        *[{"name": n, "id": f"agent-{i}"} for i, n in enumerate(DEBATER_NAMES)],
+        {"name": JUDGE_NAME, "id": "agent-judge"},
+    ]
+    _start_round(r, client, q, FakeConfig(), _logger)
+    assert r.status == "running"
+    assert r.phase == "awaiting_debaters"
+    coord_cid = r.coordinator_comment_id
+
+    # Step 2: debaters reply
+    for i, name in enumerate(DEBATER_NAMES):
+        client.comments.append({
+            "id": f"reply-{i}", "content": f"[{name} response]: Evidence.",
+            "author_id": f"agent-{i}", "author_type": "agent", "created_at": _utcnow(),
+        })
+    _advance_awaiting_debaters(r, client, q, FakeConfig(), _logger)
+    assert r.phase == "awaiting_judge"
+    judge_cid = r.judge_comment_id
+
+    # Step 3: judge replies
+    client.comments.append({
+        "id": "verdict1", "content": "VERDICT: ACCEPT\n\nShipped.",
+        "author_id": "agent-judge", "author_type": "agent", "created_at": _utcnow(),
+    })
+    _advance_awaiting_judge(r, client, q, FakeConfig(), _logger)
+    assert r.phase == "accepted"
+    assert r.status == "done"
+    assert client.issue["status"] == "done"
+
+
+# ---------------------------------------------------------------------------
+# Restart resume: in-flight rounds resume from correct phase
+# ---------------------------------------------------------------------------
+
+def test_restart_resumes_awaiting_debaters(tmp_path):
+    """On restart, a running/awaiting_debaters round picks up without re-posting comment."""
+    r = _make_round(
+        status="running",
+        phase="awaiting_debaters",
+        phase_entered_at=_utcnow(),
+        coordinator_comment_id="existing-coord-comment",
+    )
+    q = _make_queue(tmp_path, r)
+
+    client = FakeClient()
+    client.comments = [
+        {"id": "existing-coord-comment", "content": "Debate opened",
+         "author_id": "coord", "created_at": _past(60)},
+    ]
+
+    orchestrate_pending(q, FakeConfig(), _logger, client=client)
+
+    # Must NOT post another debater comment
+    assert all("Debate round opened" not in c for c in client.posted_comments)
+    # Phase should still be awaiting_debaters (no replies)
+    assert r.phase == "awaiting_debaters"
+
+
+def test_restart_resumes_awaiting_judge(tmp_path):
+    """On restart, a running/awaiting_judge round resumes without re-posting judge comment."""
+    r = _make_round(
+        status="running",
+        phase="awaiting_judge",
+        phase_entered_at=_utcnow(),
+        coordinator_comment_id="coord-c",
+        judge_comment_id="judge-c",
+    )
+    q = _make_queue(tmp_path, r)
+
+    client = FakeClient()
+    client.comments = [
+        {"id": "judge-c", "content": "Verdict requested",
+         "author_id": "coord", "created_at": _past(30)},
+    ]
+
+    orchestrate_pending(q, FakeConfig(), _logger, client=client)
+
+    # Must NOT post another judge comment
+    assert all("Verdict requested" not in c for c in client.posted_comments)
+    assert r.phase == "awaiting_judge"
+
+
+# ---------------------------------------------------------------------------
+# orchestrate_pending: pending rounds are started, running rounds advanced
+# ---------------------------------------------------------------------------
+
+def test_orchestrate_pending_starts_pending(tmp_path):
+    r = _make_round()
+    q = _make_queue(tmp_path, r)
+    client = FakeClient()
+
+    orchestrate_pending(q, FakeConfig(), _logger, client=client)
+
+    assert r.status == "running"
+    assert any("Debate round opened" in c for c in client.posted_comments)
+
+
+def test_orchestrate_pending_advances_running(tmp_path):
+    """Running/awaiting_judge round with a verdict is completed."""
+    r = _make_round(
+        status="running",
+        phase="awaiting_judge",
+        phase_entered_at=_utcnow(),
+        coordinator_comment_id="coord-c",
+        judge_comment_id="judge-c",
+    )
+    q = _make_queue(tmp_path, r)
+
+    client = FakeClient()
+    client.agents = [{"name": JUDGE_NAME, "id": "agent-judge"}]
+    client.comments = [
+        {"id": "judge-c", "content": "x", "author_id": "coord", "created_at": _past(10)},
+        {"id": "v1", "content": "VERDICT: REJECT\n\nNeeds work.",
+         "author_id": "agent-judge", "created_at": _utcnow()},
+    ]
+
+    orchestrate_pending(q, FakeConfig(), _logger, client=client)
+
+    assert r.status == "done"
+    assert r.phase == "rejected"