diff --git a/PROJECT_CONTEXT.md b/PROJECT_CONTEXT.md
index c44d9a0..199072b 100644
--- a/PROJECT_CONTEXT.md
+++ b/PROJECT_CONTEXT.md
@@ -304,6 +304,9 @@ Do not reorganize them physically without compatibility wrappers.
 | `derive_easycom_interaction_events.py` | Deterministic transcript/timing proxies |
 | `adjudicate_easycom_interaction_events.py` | Optional ambiguous-event adjudication |
 | `audit_easycom_floor_events.py` | Count EOT/takeover/backchannel candidates |
+| `prepare_easycom_eot_int_review.py` | Build manuscript-aligned EOT-response/INT-yield positive and hard-negative review regions |
+| `adjudicate_easycom_eot_int_candidates.py` | Add optional DeepSeek transcript/timing suggestions; never human ground truth |
+| `review_floor_events.py` | Serve the local video/transcript workspace and persist human event reviews |
 | `prepare_easycom_oracle_features.py` | Build explicit past-only oracle person-activity sidecars and analysis-only addressee controls |
 
 ### Local features
diff --git a/adjudicate_easycom_eot_int_candidates.py b/adjudicate_easycom_eot_int_candidates.py
new file mode 100644
index 0000000..a2f0460
--- /dev/null
+++ b/adjudicate_easycom_eot_int_candidates.py
@@ -0,0 +1,339 @@
+#!/usr/bin/env python3
+"""Add conservative DeepSeek suggestions to EOT/INT review candidates.
+
+Only transcript excerpts and timing metadata are sent.  Suggestions are never
+treated as gold labels: the output remains input to ``review_floor_events.py``
+and requires an identified human reviewer.  The API key is read only from the
+``DEEPSEEK_API_KEY`` environment variable and is never persisted.
+"""
+
+from __future__ import annotations
+
+import argparse
+from collections import Counter
+import hashlib
+import json
+import os
+from pathlib import Path
+import random
+import time
+from typing import Any, Sequence
+import urllib.error
+import urllib.request
+
+
+PROMPT_VERSION = "easycom-manuscript-eot-int-adjudicator-v1"
+DEFAULT_MODEL = "deepseek-v4-flash"
+DEFAULT_BASE_URL = "https://api.deepseek.com"
+DISPOSITIONS = {"positive", "hard_negative", "exclude", "uncertain"}
+HARD_NEGATIVE_TYPES = {
+    "eot_midturn_pause",
+    "eot_other_to_other",
+    "eot_no_response",
+    "int_backchannel",
+    "int_non_takeover_overlap",
+    "int_retain_floor",
+    "other",
+    "not_applicable",
+    "uncertain",
+}
+CONFIDENCES = {"high", "medium", "low"}
+
+SYSTEM_PROMPT = """You audit candidate regions for a scientific study of wearer-relative floor control.
+Use only the supplied participant-resolved transcript and timing evidence. Do not infer prosody, gaze, intention, or acoustic interruption cues that are not supplied.
+
+Tasks:
+- eot_response positive: a non-wearer releases the floor and the wearer makes a genuine floor-taking response.
+- int_yield positive: a non-wearer takes over during wearer speech and the wearer genuinely yields the floor.
+
+Hard negatives:
+- eot_midturn_pause: the same non-wearer resumes after a within-turn pause.
+- eot_other_to_other: a different non-wearer takes the floor while the wearer remains silent.
+- eot_no_response: the wearer correctly remains silent for the labeled region.
+- int_backchannel: brief feedback during wearer speech that does not take the floor.
+- int_non_takeover_overlap: overlapping other speech without takeover.
+- int_retain_floor: the wearer correctly retains the floor for the labeled region.
+
+Use exclude for annotation corruption or an unusable boundary. Use uncertain whenever transcript/timing evidence cannot establish the semantic function. Timing alone does not prove EOT, interruption, backchannel, or takeover.
+
+Return exactly one JSON object with this shape and no markdown:
+{"items":[{"uid":"...","protocol_disposition":"uncertain","hard_negative_type":"uncertain","confidence":"low","rationale":"brief evidence-based sentence"}]}
+Return every supplied uid exactly once."""
+
+
+def read_candidates(path: Path) -> list[dict[str, Any]]:
+    rows: list[dict[str, Any]] = []
+    with path.open("r", encoding="utf-8") as handle:
+        for line_number, line in enumerate(handle, 1):
+            if not line.strip():
+                continue
+            row = json.loads(line)
+            if not isinstance(row, dict) or not isinstance(row.get("uid"), str):
+                raise ValueError(f"Expected candidate object with uid at {path}:{line_number}")
+            if row.get("task") not in {"eot_response", "int_yield"}:
+                raise ValueError(f"Unsupported task at {path}:{line_number}: {row.get('task')!r}")
+            rows.append(row)
+    if not rows:
+        raise ValueError(f"No candidates in {path}")
+    return rows
+
+
+def candidate_for_prompt(row: dict[str, Any]) -> dict[str, Any]:
+    fields = (
+        "uid",
+        "task",
+        "automatic_protocol_label",
+        "automatic_hard_negative_type",
+        "anchor_type",
+        "anchor_dense_seconds",
+        "behavior_anchor_type",
+        "behavior_seconds",
+        "region_start_seconds",
+        "region_end_seconds",
+        "region_end_reason",
+        "previous_other_participant_ids",
+        "incoming_other_participant_ids",
+        "automatic_reason",
+        "context",
+    )
+    return {field: row.get(field) for field in fields}
+
+
+def build_user_prompt(rows: Sequence[dict[str, Any]], pass_index: int) -> str:
+    instruction = (
+        "Primary pass: classify conservatively."
+        if pass_index == 0
+        else "Independent skeptical pass: seek alternative explanations and choose uncertain when semantics are unsupported."
+    )
+    return (
+        instruction
+        + "\nCandidate JSON:\n"
+        + json.dumps([candidate_for_prompt(row) for row in rows], ensure_ascii=False, separators=(",", ":"))
+    )
+
+
+def validate_decisions(payload: Any, expected_uids: Sequence[str]) -> list[dict[str, str]]:
+    if not isinstance(payload, dict) or not isinstance(payload.get("items"), list):
+        raise ValueError("Response must be an object with an items list")
+    expected = set(expected_uids)
+    decisions: dict[str, dict[str, str]] = {}
+    for item in payload["items"]:
+        if not isinstance(item, dict):
+            raise ValueError("Every decision must be an object")
+        uid = item.get("uid")
+        disposition = item.get("protocol_disposition")
+        negative_type = item.get("hard_negative_type")
+        confidence = item.get("confidence")
+        rationale = item.get("rationale")
+        if uid not in expected or uid in decisions:
+            raise ValueError(f"Unexpected or duplicate uid: {uid!r}")
+        if disposition not in DISPOSITIONS:
+            raise ValueError(f"Invalid protocol_disposition for {uid}: {disposition!r}")
+        if negative_type not in HARD_NEGATIVE_TYPES:
+            raise ValueError(f"Invalid hard_negative_type for {uid}: {negative_type!r}")
+        if confidence not in CONFIDENCES:
+            raise ValueError(f"Invalid confidence for {uid}: {confidence!r}")
+        if not isinstance(rationale, str) or not rationale.strip():
+            raise ValueError(f"Missing rationale for {uid}")
+        decisions[str(uid)] = {
+            "uid": str(uid),
+            "protocol_disposition": str(disposition),
+            "hard_negative_type": str(negative_type),
+            "confidence": str(confidence),
+            "rationale": rationale.strip(),
+        }
+    if set(decisions) != expected:
+        raise ValueError(f"Response uid mismatch; missing={sorted(expected - set(decisions))}")
+    return [decisions[uid] for uid in expected_uids]
+
+
+def _post(
+    *,
+    rows: Sequence[dict[str, Any]],
+    pass_index: int,
+    api_key: str,
+    model: str,
+    base_url: str,
+    timeout_seconds: float,
+    max_retries: int,
+) -> tuple[list[dict[str, str]], dict[str, Any]]:
+    body = {
+        "model": model,
+        "messages": [
+            {"role": "system", "content": SYSTEM_PROMPT},
+            {"role": "user", "content": build_user_prompt(rows, pass_index)},
+        ],
+        "response_format": {"type": "json_object"},
+        "thinking": {"type": "disabled"},
+        "temperature": 0,
+        "max_tokens": 2048,
+        "stream": False,
+    }
+    request = urllib.request.Request(
+        base_url.rstrip("/") + "/chat/completions",
+        data=json.dumps(body, ensure_ascii=False).encode("utf-8"),
+        headers={"Authorization": f"Bearer {api_key}", "Content-Type": "application/json"},
+        method="POST",
+    )
+    last_error: Exception | None = None
+    for attempt in range(max_retries + 1):
+        try:
+            with urllib.request.urlopen(request, timeout=timeout_seconds) as response:
+                envelope = json.loads(response.read().decode("utf-8"))
+            content = envelope["choices"][0]["message"]["content"]
+            parsed = json.loads(content)
+            return validate_decisions(parsed, [row["uid"] for row in rows]), envelope.get("usage", {})
+        except (
+            urllib.error.HTTPError,
+            urllib.error.URLError,
+            TimeoutError,
+            KeyError,
+            TypeError,
+            json.JSONDecodeError,
+            ValueError,
+        ) as error:
+            last_error = error
+            if attempt >= max_retries:
+                break
+            time.sleep(min(30.0, 2.0**attempt))
+    raise RuntimeError(f"DeepSeek request failed after {max_retries + 1} attempts: {last_error}")
+
+
+def add_suggestions(
+    rows: Sequence[dict[str, Any]],
+    *,
+    api_key: str,
+    model: str,
+    base_url: str,
+    passes: int,
+    timeout_seconds: float,
+    max_retries: int,
+) -> tuple[list[dict[str, Any]], Counter[str]]:
+    by_uid: dict[str, list[dict[str, str]]] = {row["uid"]: [] for row in rows}
+    usage: Counter[str] = Counter()
+    for pass_index in range(passes):
+        decisions, pass_usage = _post(
+            rows=rows,
+            pass_index=pass_index,
+            api_key=api_key,
+            model=model,
+            base_url=base_url,
+            timeout_seconds=timeout_seconds,
+            max_retries=max_retries,
+        )
+        for decision in decisions:
+            by_uid[decision["uid"]].append(decision)
+        for key, value in pass_usage.items():
+            if isinstance(value, int):
+                usage[key] += value
+
+    output: list[dict[str, Any]] = []
+    for source in rows:
+        decisions = by_uid[source["uid"]]
+        labels = {
+            (decision["protocol_disposition"], decision["hard_negative_type"])
+            for decision in decisions
+        }
+        unanimous = len(labels) == 1
+        if unanimous:
+            disposition, negative_type = next(iter(labels))
+            confidence = (
+                "high" if all(item["confidence"] == "high" for item in decisions) else "medium"
+            )
+            rationale = " | ".join(item["rationale"] for item in decisions)
+        else:
+            disposition = "uncertain"
+            negative_type = "uncertain"
+            confidence = "low"
+            rationale = "The independent DeepSeek passes disagreed."
+        prompt_payload = {
+            "prompt_version": PROMPT_VERSION,
+            "model": model,
+            "passes": passes,
+            "candidate": candidate_for_prompt(source),
+        }
+        enriched = dict(source)
+        enriched["llm_suggestion"] = {
+            "protocol_disposition": disposition,
+            "hard_negative_type": negative_type,
+            "confidence": confidence,
+            "rationale": rationale,
+            "unanimous": unanimous,
+        }
+        enriched["llm_adjudication"] = {
+            "model": model,
+            "prompt_version": PROMPT_VERSION,
+            "passes": passes,
+            "prompt_sha256": hashlib.sha256(
+                json.dumps(prompt_payload, sort_keys=True, ensure_ascii=False).encode("utf-8")
+            ).hexdigest(),
+            "decisions": decisions,
+            "human_review_required": True,
+        }
+        output.append(enriched)
+    return output, usage
+
+
+def parse_args() -> argparse.Namespace:
+    parser = argparse.ArgumentParser(description=__doc__)
+    parser.add_argument("--input", type=Path, required=True)
+    parser.add_argument("--output", type=Path, required=True)
+    parser.add_argument("--model", default=os.environ.get("DEEPSEEK_MODEL", DEFAULT_MODEL))
+    parser.add_argument("--base-url", default=os.environ.get("DEEPSEEK_BASE_URL", DEFAULT_BASE_URL))
+    parser.add_argument("--passes", type=int, default=2)
+    parser.add_argument("--max-events", type=int)
+    parser.add_argument("--selection-seed", type=int, default=2027)
+    parser.add_argument("--timeout-seconds", type=float, default=120.0)
+    parser.add_argument("--max-retries", type=int, default=3)
+    parser.add_argument("--dry-run", action="store_true")
+    parser.add_argument("--allow-external-transcript-upload", action="store_true")
+    parser.add_argument("--overwrite", action="store_true")
+    return parser.parse_args()
+
+
+def main() -> None:
+    args = parse_args()
+    if args.passes <= 0 or args.max_retries < 0:
+        raise ValueError("passes must be positive and max-retries non-negative")
+    rows = read_candidates(args.input.expanduser().resolve())
+    if args.max_events is not None:
+        if args.max_events < 0:
+            raise ValueError("--max-events must be non-negative")
+        rng = random.Random(args.selection_seed)
+        rows = rng.sample(rows, min(args.max_events, len(rows)))
+        rows.sort(key=lambda row: row["uid"])
+    print(f"Candidates={len(rows)} model={args.model} passes={args.passes}")
+    if args.dry_run:
+        print("DRY RUN: no API request will be made.\n")
+        print(build_user_prompt(rows, 0))
+        return
+    if not args.allow_external_transcript_upload:
+        raise PermissionError(
+            "Refusing to upload transcript excerpts; inspect --dry-run, then pass "
+            "--allow-external-transcript-upload when authorized."
+        )
+    api_key = os.environ.get("DEEPSEEK_API_KEY")
+    if not api_key:
+        raise RuntimeError("Set DEEPSEEK_API_KEY in the environment")
+    output = args.output.expanduser().resolve()
+    if output.exists() and not args.overwrite:
+        raise FileExistsError(f"Refusing to overwrite {output}; pass --overwrite")
+    enriched, usage = add_suggestions(
+        rows,
+        api_key=api_key,
+        model=args.model,
+        base_url=args.base_url,
+        passes=args.passes,
+        timeout_seconds=args.timeout_seconds,
+        max_retries=args.max_retries,
+    )
+    output.parent.mkdir(parents=True, exist_ok=True)
+    with output.open("w", encoding="utf-8") as handle:
+        for row in enriched:
+            handle.write(json.dumps(row, ensure_ascii=False) + "\n")
+    print(f"Saved {len(enriched)} suggested candidates to {output}")
+    print("Usage:", dict(usage))
+
+
+if __name__ == "__main__":
+    main()
diff --git a/docs/README.md b/docs/README.md
index d4934e3..eae0f5a 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -33,6 +33,7 @@ tests.
 | [`easycom_oracle_information.md`](easycom_oracle_information.md) | Causal oracle per-person speaking-history upper bound and Session-12 screening commands |
 | [`easycom_competing_risk_floor_evaluation.md`](easycom_competing_risk_floor_evaluation.md) | Running and auditing the competing-risk entry/yield evaluator with training-side threshold calibration |
 | [`easycom_floor_event_diagnostics.md`](easycom_floor_event_diagnostics.md) | Separating boundary observability, event-objective mismatch and addressee information with remote commands |
+| [`easycom_event_review_tool.md`](easycom_event_review_tool.md) | Reviewing automatically mined EasyCom floor-event candidates against local video and transcripts |
 
 ## Design history and implementation options
 
diff --git a/docs/easycom_event_review_tool.md b/docs/easycom_event_review_tool.md
new file mode 100644
index 0000000..d56cbe8
--- /dev/null
+++ b/docs/easycom_event_review_tool.md
@@ -0,0 +1,97 @@
+# EasyCom EOT/INT review workspace
+
+`review_floor_events.py` is a local annotation workspace for reviewing the
+manuscript-aligned regions produced by `prepare_easycom_eot_int_review.py`.
+It can also open the older timing/transcript proxy reports from
+`derive_easycom_interaction_events.py` and `audit_easycom_floor_events.py`, but
+those older reports do not have the directionality or hard-negative region
+contract required by the current manuscript. Raw EasyCom media stays read-only;
+human decisions are stored separately as JSONL and CSV.
+
+## Prepare manuscript-aligned candidates
+
+Develop the annotation guide on training-side Sessions 4--12:
+
+```bash
+python3 prepare_easycom_eot_int_review.py \
+  --dataset-root /path/to/easycom \
+  --sessions Session_4 Session_5 Session_6 Session_7 Session_8 Session_9 Session_10 Session_11 Session_12 \
+  --output-dir reports/easycom_floor_event_candidates
+```
+
+For a one-event pilot, add `--max-candidates 1`. The generator follows the
+manuscript direction exactly:
+
+- EOT-response begins at an aggregate-other offset while the wearer is silent.
+- INT-yield begins at an aggregate-other onset while the wearer is active.
+- An observed wearer transition before the competing other transition is a
+  timing-positive candidate.
+- A competing other transition, or a fully observed no-transition window, is a
+  timing hard-negative candidate.
+- A source boundary without a complete outcome/window is marked for exclusion.
+
+Automatic labels remain candidates until independent human semantic review.
+
+## Optional DeepSeek suggestion
+
+DeepSeek suggestions are triage metadata and never count as a human label. The
+script sends only the candidate transcript excerpt and timing fields. Inspect
+the exact request without network access first:
+
+```bash
+python3 adjudicate_easycom_eot_int_candidates.py \
+  --input reports/easycom_floor_event_candidates/easycom_eot_int_candidates.jsonl \
+  --output reports/easycom_floor_event_candidates/easycom_eot_int_deepseek.jsonl \
+  --model deepseek-v4-flash \
+  --max-events 1 \
+  --dry-run
+```
+
+After setting `DEEPSEEK_API_KEY`, make the authorized request:
+
+```bash
+python3 adjudicate_easycom_eot_int_candidates.py \
+  --input reports/easycom_floor_event_candidates/easycom_eot_int_candidates.jsonl \
+  --output reports/easycom_floor_event_candidates/easycom_eot_int_deepseek.jsonl \
+  --model deepseek-v4-flash \
+  --max-events 1 \
+  --allow-external-transcript-upload
+```
+
+Point the review server at the DeepSeek-enriched JSONL to show its suggestion
+beside the video. Keep suggestions hidden from an initial independent human
+pass if anchoring bias is a concern.
+
+## Start the local workspace
+
+```bash
+python3 review_floor_events.py \
+  --dataset-root /path/to/easycom \
+  --events reports/easycom_floor_event_candidates/easycom_eot_int_candidates.jsonl \
+  --output reports/easycom_event_reviews/reviewer_1.jsonl
+```
+
+Open `http://127.0.0.1:8765`. The page resolves the source MP4 and transcript,
+seeks to a six-second event context, and supports session/split/task/status
+filtering.
+
+Each save atomically rewrites both JSONL and CSV. The review explicitly records
+`positive`, `hard_negative`, `exclude`, or `uncertain`; the hard-negative
+subtype; boundary validity; onset function; conversational routing; offset
+outcome; three 200 ms anchor/region corrections; confidence; and reviewer ID.
+
+## Freeze discipline
+
+Develop the annotation guide and resolve category disagreements on training
+Sessions 4--12. Freeze the guide before reviewing official test Sessions 1--3.
+Do not use test reviews to change candidate windows, label categories, or the
+R=.8 threshold calibration rule.
+
+For paper-quality labels, use two independent reviewers with separate
+`--output` files and adjudicate disagreements in a third output. A non-empty
+reviewer ID is required on every saved row. DeepSeek is not one of the two
+reviewers.
+
+This workspace produces audited labels. It does not yet convert them into the
+final committed-event matching metrics; that integration follows only after
+the schema and real-data pilot are frozen.
diff --git a/floor_event_review_web/app.css b/floor_event_review_web/app.css
new file mode 100644
index 0000000..90487cb
--- /dev/null
+++ b/floor_event_review_web/app.css
@@ -0,0 +1,303 @@
+:root {
+  color-scheme: dark;
+  --bg: #07101d;
+  --panel: #0d1728;
+  --panel-2: #111d30;
+  --line: #24334b;
+  --line-strong: #344865;
+  --text: #edf5ff;
+  --muted: #98a8bd;
+  --accent: #5eead4;
+  --accent-strong: #2dd4bf;
+  --accent-dim: rgba(94, 234, 212, 0.12);
+  --amber: #fbbf24;
+  --danger: #fb7185;
+  --success: #34d399;
+  --radius: 12px;
+  --shadow: 0 18px 44px rgba(0, 0, 0, 0.24);
+  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
+    "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
+}
+
+* { box-sizing: border-box; }
+[hidden] { display: none !important; }
+
+html, body { min-height: 100%; }
+
+body {
+  margin: 0;
+  background:
+    radial-gradient(circle at 45% -20%, rgba(30, 64, 175, 0.18), transparent 42%),
+    var(--bg);
+  color: var(--text);
+  font-size: 16px;
+}
+
+button, input, select, textarea { font: inherit; }
+button, a, select, input, textarea { outline-offset: 3px; }
+:focus-visible { outline: 2px solid var(--accent); }
+
+.topbar {
+  min-height: 72px;
+  padding: 12px 20px;
+  border-bottom: 1px solid var(--line);
+  display: grid;
+  grid-template-columns: minmax(220px, 1fr) minmax(280px, 440px) minmax(220px, 1fr);
+  align-items: center;
+  gap: 24px;
+  background: rgba(7, 16, 29, 0.92);
+  backdrop-filter: blur(14px);
+  position: sticky;
+  top: 0;
+  z-index: 20;
+}
+
+.brand { display: flex; align-items: center; gap: 12px; }
+.brand-mark {
+  width: 32px;
+  height: 32px;
+  border: 2px solid var(--accent);
+  border-radius: 9px;
+  position: relative;
+  box-shadow: inset 0 0 0 5px var(--accent-dim);
+}
+.brand-mark::after {
+  content: "";
+  position: absolute;
+  left: 5px;
+  right: 5px;
+  top: 14px;
+  height: 2px;
+  background: var(--accent);
+  box-shadow: 5px -6px 0 -0.5px var(--accent), 11px 5px 0 -0.5px var(--accent);
+  transform: skewY(-35deg);
+}
+.brand h1 { font-size: 1rem; margin: 0; letter-spacing: 0.01em; }
+.brand p { color: var(--muted); font-size: 0.8rem; margin: 2px 0 0; }
+
+.progress-block { display: grid; gap: 7px; }
+.progress-copy { display: flex; justify-content: space-between; gap: 20px; font-size: 0.86rem; }
+.progress-copy span { color: var(--muted); }
+.progress-track { height: 5px; border-radius: 8px; background: #17243a; overflow: hidden; }
+.progress-track span { display: block; height: 100%; width: 0; background: var(--accent); transition: width 180ms ease; }
+
+.export-actions { display: flex; justify-content: flex-end; gap: 8px; }
+.export-actions a {
+  color: var(--text);
+  text-decoration: none;
+  border: 1px solid var(--line-strong);
+  border-radius: 8px;
+  padding: 8px 11px;
+  font-size: 0.84rem;
+  background: var(--panel);
+}
+.export-actions a:hover { border-color: var(--accent); color: var(--accent); }
+
+.filters {
+  padding: 12px 20px;
+  display: grid;
+  grid-template-columns: repeat(4, minmax(130px, 175px)) minmax(190px, 1fr) auto;
+  gap: 10px;
+  align-items: end;
+  border-bottom: 1px solid var(--line);
+  background: #091321;
+}
+
+.filters label, .inline-fields label, .text-field { display: grid; gap: 6px; }
+.filters label > span, .inline-fields label > span, .text-field > span {
+  color: var(--muted);
+  font-size: 0.75rem;
+  font-weight: 700;
+  letter-spacing: 0.05em;
+  text-transform: uppercase;
+}
+
+select, input[type="search"], input[type="text"], .text-field input, textarea {
+  width: 100%;
+  color: var(--text);
+  background: #0a1525;
+  border: 1px solid var(--line-strong);
+  border-radius: 8px;
+  padding: 9px 10px;
+  min-height: 39px;
+}
+textarea { resize: vertical; line-height: 1.45; }
+::placeholder { color: #65758d; }
+
+.button {
+  min-height: 39px;
+  border: 1px solid var(--line-strong);
+  border-radius: 8px;
+  padding: 9px 12px;
+  color: var(--text);
+  cursor: pointer;
+  background: var(--panel-2);
+}
+.button:hover { border-color: var(--accent); }
+.button.primary { background: var(--accent-strong); border-color: var(--accent-strong); color: #04221f; font-weight: 800; }
+.button.primary:hover { background: var(--accent); }
+.button:disabled { cursor: wait; opacity: 0.55; }
+
+.workspace {
+  min-height: calc(100vh - 142px);
+  padding: 14px;
+  display: grid;
+  grid-template-columns: minmax(230px, 0.66fr) minmax(460px, 1.65fr) minmax(365px, 1fr);
+  gap: 14px;
+  align-items: start;
+}
+
+.panel {
+  background: linear-gradient(180deg, rgba(17, 29, 48, 0.96), rgba(10, 20, 35, 0.96));
+  border: 1px solid var(--line);
+  border-radius: var(--radius);
+  box-shadow: var(--shadow);
+  overflow: hidden;
+}
+.queue-panel, .review-panel { position: sticky; top: 152px; max-height: calc(100vh - 166px); }
+.queue-panel { display: flex; flex-direction: column; }
+.review-panel { overflow-y: auto; }
+
+.panel-heading, .event-header, .section-heading {
+  display: flex;
+  justify-content: space-between;
+  gap: 16px;
+  align-items: center;
+}
+.panel-heading { padding: 15px 16px 12px; border-bottom: 1px solid var(--line); }
+.panel-heading h2, .section-heading h3 { margin: 2px 0 0; font-size: 1rem; }
+.eyebrow { color: var(--accent); font-size: 0.68rem; font-weight: 800; letter-spacing: 0.12em; }
+.count-pill, .badge {
+  display: inline-flex;
+  align-items: center;
+  min-height: 25px;
+  border-radius: 999px;
+  padding: 3px 9px;
+  border: 1px solid var(--line-strong);
+  color: var(--muted);
+  font-size: 0.75rem;
+  white-space: nowrap;
+}
+.badge.accent { color: var(--accent); border-color: rgba(94, 234, 212, 0.45); background: var(--accent-dim); }
+
+.queue-list { overflow-y: auto; padding: 7px; }
+.queue-item {
+  width: 100%;
+  border: 1px solid transparent;
+  border-radius: 9px;
+  padding: 10px;
+  background: transparent;
+  color: var(--text);
+  text-align: left;
+  cursor: pointer;
+  display: grid;
+  gap: 6px;
+}
+.queue-item:hover { background: rgba(255,255,255,0.035); }
+.queue-item.active { border-color: var(--accent); background: var(--accent-dim); }
+.queue-item.reviewed .queue-status { background: var(--success); }
+.queue-line { display: flex; align-items: center; gap: 7px; }
+.queue-line strong { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 0.83rem; }
+.queue-status { flex: 0 0 auto; width: 7px; height: 7px; border-radius: 50%; background: #516078; }
+.queue-meta { color: var(--muted); font-size: 0.74rem; display: flex; gap: 8px; }
+.queue-label { font-size: 0.73rem; color: #cbd7e7; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
+.queue-limit { margin: 0; padding: 10px 14px; color: var(--muted); font-size: 0.75rem; border-top: 1px solid var(--line); }
+
+.event-header { padding: 16px 18px; }
+.event-header h2 { margin: 8px 0 3px; font-size: 1.2rem; }
+.event-header p { margin: 0; color: var(--muted); font-size: 0.82rem; }
+.event-badges { display: flex; gap: 6px; flex-wrap: wrap; }
+.llm-suggestion {
+  margin: 0 18px 14px;
+  padding: 10px 12px;
+  border: 1px solid rgba(94, 234, 212, 0.3);
+  border-radius: 10px;
+  background: rgba(94, 234, 212, 0.07);
+  color: #c9f8ef;
+  font-size: 0.8rem;
+  line-height: 1.45;
+}
+.llm-suggestion strong { display: block; color: var(--accent); margin-bottom: 3px; }
+.event-position { color: var(--muted); font-size: 0.8rem; }
+
+.video-shell { background: #02050a; aspect-ratio: 16 / 9; position: relative; border-block: 1px solid var(--line); }
+.video-shell video { width: 100%; height: 100%; display: block; object-fit: contain; }
+.empty-state { position: absolute; inset: 0; display: grid; place-content: center; text-align: center; gap: 7px; color: var(--muted); }
+.empty-state strong { color: var(--text); }
+.time-marker { position: absolute; pointer-events: none; left: 50%; top: 10px; bottom: 44px; border-left: 1px dashed rgba(251,191,36,.7); opacity: 0; }
+.video-shell:hover .time-marker { opacity: .55; }
+
+.transport { padding: 10px 14px; display: flex; gap: 7px; align-items: center; border-bottom: 1px solid var(--line); }
+.transport button { color: var(--muted); border: 1px solid var(--line); background: #0a1525; border-radius: 7px; padding: 6px 9px; cursor: pointer; }
+.transport button:hover { color: var(--accent); border-color: var(--accent); }
+.transport .jump-event { color: var(--amber); }
+#timeReadout { margin-left: auto; color: var(--muted); font-variant-numeric: tabular-nums; font-size: 0.8rem; }
+
+.transcript-section { padding: 16px 18px 8px; }
+.section-heading { margin-bottom: 10px; }
+.section-heading > span { color: var(--muted); font-size: .78rem; }
+.transcript-list { display: grid; gap: 7px; max-height: 270px; overflow-y: auto; padding-right: 3px; }
+.transcript-row { display: grid; grid-template-columns: 72px minmax(0,1fr); gap: 10px; padding: 9px 10px; border: 1px solid var(--line); border-radius: 8px; background: rgba(2, 8, 18, 0.36); }
+.transcript-row.anchor { border-color: rgba(251,191,36,.65); background: rgba(251,191,36,.08); }
+.speaker { color: var(--accent); font-size: .75rem; font-weight: 800; }
+.speaker small { color: var(--muted); display: block; margin-top: 3px; font-weight: 500; }
+.utterance { line-height: 1.46; font-size: .9rem; }
+.utterance small { display: block; color: var(--muted); margin-top: 4px; font-size: .72rem; }
+.empty-copy { color: var(--muted); padding: 22px; text-align: center; border: 1px dashed var(--line-strong); border-radius: 8px; }
+
+.raw-details { margin: 10px 18px 18px; border-top: 1px solid var(--line); padding-top: 12px; }
+.raw-details summary { color: var(--muted); cursor: pointer; font-size: .82rem; }
+.raw-details pre { white-space: pre-wrap; overflow-wrap: anywhere; max-height: 260px; overflow-y: auto; color: #bfd0e7; font-size: .74rem; line-height: 1.5; }
+
+.review-heading { background: rgba(94,234,212,.035); }
+.save-state { color: var(--muted); font-size: .75rem; }
+.save-state.saved { color: var(--success); }
+#reviewForm { padding: 13px 15px 16px; display: grid; gap: 14px; }
+fieldset { margin: 0; padding: 0; border: 0; display: grid; gap: 8px; }
+legend { font-size: .84rem; font-weight: 750; margin-bottom: 8px; }
+.required { color: var(--muted); font-size: .66rem; font-weight: 500; }
+.choice-grid { display: grid; gap: 7px; }
+.choice-grid.three { grid-template-columns: repeat(3, 1fr); }
+.choice-grid.two { grid-template-columns: repeat(2, 1fr); }
+.choice-grid label { cursor: pointer; min-width: 0; }
+.choice-grid input { position: absolute; opacity: 0; pointer-events: none; }
+.choice-grid label span { min-height: 52px; border: 1px solid var(--line); border-radius: 8px; padding: 8px; display: grid; align-content: center; gap: 2px; background: rgba(2,8,18,.28); }
+.choice-grid.compact label span { min-height: 40px; }
+.choice-grid label:hover span { border-color: var(--line-strong); }
+.choice-grid input:checked + span { border-color: var(--accent); background: var(--accent-dim); box-shadow: inset 0 0 0 1px rgba(94,234,212,.18); }
+.choice-grid input:focus-visible + span { outline: 2px solid var(--accent); outline-offset: 2px; }
+.choice-grid b { font-size: .8rem; overflow: hidden; text-overflow: ellipsis; }
+.choice-grid small { color: var(--muted); font-size: .67rem; line-height: 1.25; }
+.inline-fields { display: grid; grid-template-columns: 1fr 1fr; gap: 9px; }
+.inline-fields select { font-size: .82rem; }
+.text-field input, .text-field textarea { font-size: .84rem; }
+.form-error { color: #fecdd3; background: rgba(251,113,133,.1); border: 1px solid rgba(251,113,133,.4); border-radius: 8px; padding: 9px; font-size: .8rem; }
+.review-actions { display: grid; grid-template-columns: .9fr 1.4fr; gap: 8px; }
+kbd { border: 1px solid rgba(3,24,22,.35); border-bottom-width: 2px; border-radius: 4px; padding: 1px 4px; font-size: .68rem; font-family: inherit; }
+.shortcuts { border-top: 1px solid var(--line); padding: 11px 15px 14px; display: flex; flex-wrap: wrap; gap: 8px 14px; color: var(--muted); font-size: .71rem; }
+.shortcuts kbd { color: #cbd7e7; border-color: var(--line-strong); margin-right: 2px; }
+
+.toast { position: fixed; left: 50%; bottom: 22px; transform: translate(-50%, 20px); background: #d9fff9; color: #05251f; border-radius: 9px; padding: 10px 15px; font-weight: 750; font-size: .84rem; box-shadow: var(--shadow); opacity: 0; pointer-events: none; transition: 160ms ease; z-index: 40; }
+.toast.visible { opacity: 1; transform: translate(-50%, 0); }
+
+@media (max-width: 1180px) {
+  .topbar { grid-template-columns: 1fr minmax(250px, 380px); }
+  .export-actions { display: none; }
+  .workspace { grid-template-columns: 220px minmax(430px, 1fr); }
+  .review-panel { position: static; max-height: none; grid-column: 1 / -1; }
+  .queue-panel { top: 152px; }
+  .filters { grid-template-columns: repeat(3, 1fr); }
+  .search-field { grid-column: span 2; }
+}
+
+@media (max-width: 760px) {
+  .topbar { position: static; grid-template-columns: 1fr; gap: 12px; }
+  .filters { grid-template-columns: 1fr 1fr; padding: 10px; }
+  .search-field { grid-column: 1 / -1; }
+  .workspace { grid-template-columns: 1fr; padding: 10px; }
+  .queue-panel, .review-panel { position: static; max-height: none; }
+  .queue-panel { max-height: 340px; }
+  .transport { flex-wrap: wrap; }
+  #timeReadout { width: 100%; margin: 2px 0 0; }
+  .choice-grid.three { grid-template-columns: 1fr; }
+}
diff --git a/floor_event_review_web/app.js b/floor_event_review_web/app.js
new file mode 100644
index 0000000..d199902
--- /dev/null
+++ b/floor_event_review_web/app.js
@@ -0,0 +1,433 @@
+"use strict";
+
+const state = {
+  candidates: [],
+  filtered: [],
+  reviews: {},
+  currentId: null,
+  currentDetail: null,
+  saving: false,
+};
+
+const elements = Object.fromEntries(
+  [
+    "progressText", "progressMeta", "progressBar", "sessionFilter", "splitFilter",
+    "familyFilter", "statusFilter", "searchFilter", "clearFilters", "queueTitle",
+    "queueCount", "queueList", "queueLimit", "familyBadge", "splitBadge",
+    "autoConfidenceBadge", "eventTitle", "eventSubtitle", "eventPosition",
+    "llmSuggestion", "llmSuggestionText",
+    "eventVideo", "mediaEmpty", "jumpEvent", "timeReadout", "clipLabel",
+    "transcriptList", "rawCandidate", "reviewForm", "reviewerInput", "formError",
+    "saveButton", "uncertainButton", "saveState", "toast",
+  ].map((id) => [id, document.getElementById(id)])
+);
+
+const familyNames = {
+  eot: "EOT-RESPONSE",
+  int: "INT-YIELD",
+  onset: "WEARER ONSET",
+  offset: "LEGACY EOT PROXY",
+  interaction: "LEGACY INTERACTION",
+};
+
+function escapeText(value) {
+  return String(value ?? "");
+}
+
+function formatTime(value) {
+  if (value === null || value === undefined || Number.isNaN(Number(value))) return "—";
+  const seconds = Number(value);
+  const minutes = Math.floor(seconds / 60);
+  return `${String(minutes).padStart(2, "0")}:${(seconds % 60).toFixed(1).padStart(4, "0")}`;
+}
+
+function toast(message) {
+  elements.toast.textContent = message;
+  elements.toast.classList.add("visible");
+  window.clearTimeout(toast.timeout);
+  toast.timeout = window.setTimeout(() => elements.toast.classList.remove("visible"), 1800);
+}
+
+async function request(url, options) {
+  const response = await fetch(url, options);
+  const payload = await response.json().catch(() => ({}));
+  if (!response.ok) throw new Error(payload.error || `请求失败 (${response.status})`);
+  return payload;
+}
+
+function updateProgress() {
+  const total = state.candidates.length;
+  const reviewed = Object.keys(state.reviews).length;
+  const percent = total ? (reviewed / total) * 100 : 0;
+  elements.progressText.textContent = `${reviewed} / ${total} 已审核`;
+  elements.progressMeta.textContent = `${percent.toFixed(1)}%`;
+  elements.progressBar.style.width = `${percent}%`;
+}
+
+function populateSessions() {
+  const sessions = [...new Set(state.candidates.map((item) => item.session))].sort((a, b) =>
+    a.localeCompare(b, undefined, { numeric: true })
+  );
+  for (const session of sessions) {
+    const option = document.createElement("option");
+    option.value = session;
+    option.textContent = session;
+    elements.sessionFilter.append(option);
+  }
+}
+
+function applyFilters({ keepCurrent = true } = {}) {
+  const search = elements.searchFilter.value.trim().toLowerCase();
+  state.filtered = state.candidates.filter((item) => {
+    const reviewed = Boolean(state.reviews[item.candidate_id]);
+    const status = elements.statusFilter.value;
+    return (
+      (elements.sessionFilter.value === "all" || item.session === elements.sessionFilter.value) &&
+      (elements.splitFilter.value === "all" || item.split === elements.splitFilter.value) &&
+      (elements.familyFilter.value === "all" || item.family === elements.familyFilter.value) &&
+      (status === "all" || (status === "reviewed" ? reviewed : !reviewed)) &&
+      (!search || `${item.uid} ${item.automatic_label} ${item.automatic_protocol_label || ""} ${item.automatic_hard_negative_type || ""} ${item.session}`.toLowerCase().includes(search))
+    );
+  });
+  renderQueue();
+  if (!keepCurrent || !state.filtered.some((item) => item.candidate_id === state.currentId)) {
+    selectCandidate(state.filtered[0]?.candidate_id || null);
+  } else {
+    updatePosition();
+  }
+}
+
+function renderQueue() {
+  elements.queueList.replaceChildren();
+  elements.queueCount.textContent = String(state.filtered.length);
+  elements.queueTitle.textContent = elements.statusFilter.value === "unreviewed" ? "待审核候选" : "候选事件";
+  const limit = 250;
+  for (const item of state.filtered.slice(0, limit)) {
+    const button = document.createElement("button");
+    button.type = "button";
+    button.className = `queue-item${item.candidate_id === state.currentId ? " active" : ""}${state.reviews[item.candidate_id] ? " reviewed" : ""}`;
+    button.dataset.id = item.candidate_id;
+
+    const line = document.createElement("div");
+    line.className = "queue-line";
+    const dot = document.createElement("span");
+    dot.className = "queue-status";
+    const title = document.createElement("strong");
+    title.textContent = item.uid;
+    line.append(dot, title);
+
+    const meta = document.createElement("div");
+    meta.className = "queue-meta";
+    meta.textContent = `${item.session} · ${familyNames[item.family] || item.family} · ${formatTime(item.event_time_seconds)}`;
+    const label = document.createElement("div");
+    label.className = "queue-label";
+    label.textContent = item.automatic_protocol_label
+      ? `${item.automatic_protocol_label} · ${item.automatic_hard_negative_type || item.automatic_label}`
+      : item.automatic_label;
+    button.append(line, meta, label);
+    button.addEventListener("click", () => selectCandidate(item.candidate_id));
+    elements.queueList.append(button);
+  }
+  elements.queueLimit.hidden = state.filtered.length <= limit;
+  elements.queueLimit.textContent = state.filtered.length > limit ? `列表显示前 ${limit} 条；可用筛选缩小范围。` : "";
+}
+
+function updatePosition() {
+  const index = state.filtered.findIndex((item) => item.candidate_id === state.currentId);
+  elements.eventPosition.textContent = index < 0 ? `— / ${state.filtered.length}` : `${index + 1} / ${state.filtered.length}`;
+}
+
+async function selectCandidate(candidateId) {
+  state.currentId = candidateId;
+  renderQueue();
+  updatePosition();
+  if (!candidateId) {
+    elements.eventTitle.textContent = "当前筛选下没有候选";
+    elements.eventSubtitle.textContent = "调整筛选条件后继续。";
+    elements.eventVideo.removeAttribute("src");
+    elements.eventVideo.load();
+    elements.mediaEmpty.hidden = false;
+    elements.llmSuggestion.hidden = true;
+    elements.reviewForm.reset();
+    return;
+  }
+  elements.eventTitle.textContent = "载入事件…";
+  elements.saveButton.disabled = true;
+  try {
+    const detail = await request(`/api/event?id=${encodeURIComponent(candidateId)}`);
+    if (state.currentId !== candidateId) return;
+    state.currentDetail = detail;
+    renderDetail(detail);
+    restoreForm(detail.review);
+  } catch (error) {
+    elements.eventTitle.textContent = "事件载入失败";
+    elements.eventSubtitle.textContent = error.message;
+  } finally {
+    elements.saveButton.disabled = false;
+  }
+}
+
+function renderDetail(detail) {
+  elements.familyBadge.textContent = familyNames[detail.family] || detail.family;
+  elements.splitBadge.textContent = `${detail.split} · ${detail.session}`;
+  elements.autoConfidenceBadge.textContent = detail.automatic_confidence ? `auto ${detail.automatic_confidence}` : "auto confidence —";
+  elements.eventTitle.textContent = detail.automatic_label;
+  elements.eventSubtitle.textContent = `${detail.uid} · ${detail.source_file}:${detail.source_row}`;
+  elements.clipLabel.textContent = detail.clip_stem ? `${detail.session} / ${detail.clip_stem}` : detail.session;
+  elements.rawCandidate.textContent = JSON.stringify(detail.candidate, null, 2);
+  elements.saveState.textContent = detail.review ? "已保存" : "未保存";
+  elements.saveState.classList.toggle("saved", Boolean(detail.review));
+
+  const suggestion = detail.llm_suggestion;
+  elements.llmSuggestion.hidden = !suggestion;
+  if (suggestion) {
+    const disposition = suggestion.protocol_disposition || suggestion.final_protocol_disposition || "uncertain";
+    const subtype = suggestion.hard_negative_type || suggestion.final_hard_negative_type || "uncertain";
+    const confidence = suggestion.confidence || suggestion.final_confidence || "—";
+    const rationale = suggestion.rationale || suggestion.final_rationale || "";
+    elements.llmSuggestionText.textContent = `${disposition} · ${subtype} · ${confidence}${rationale ? ` — ${rationale}` : ""}`;
+  }
+
+  elements.mediaEmpty.hidden = detail.media_available;
+  if (detail.media_available) {
+    elements.eventVideo.src = `/media?id=${encodeURIComponent(detail.candidate_id)}`;
+    elements.eventVideo.load();
+  } else {
+    elements.eventVideo.removeAttribute("src");
+    elements.eventVideo.load();
+  }
+
+  elements.transcriptList.replaceChildren();
+  if (!detail.transcript.length) {
+    const empty = document.createElement("div");
+    empty.className = "empty-copy";
+    empty.textContent = "当前上下文未找到 transcript。";
+    elements.transcriptList.append(empty);
+  } else {
+    for (const row of detail.transcript) {
+      const item = document.createElement("div");
+      item.className = `transcript-row${row.is_anchor ? " anchor" : ""}`;
+      const speaker = document.createElement("div");
+      speaker.className = "speaker";
+      speaker.textContent = `P${row.participant_id ?? "?"}`;
+      const time = document.createElement("small");
+      time.textContent = `${formatTime(row.start_seconds)}–${formatTime(row.end_seconds)}`;
+      speaker.append(time);
+      const utterance = document.createElement("div");
+      utterance.className = "utterance";
+      utterance.textContent = escapeText(row.transcription);
+      const target = document.createElement("small");
+      target.textContent = `Target: ${typeof row.target_of_speech === "string" ? row.target_of_speech : JSON.stringify(row.target_of_speech ?? "unknown")}`;
+      utterance.append(target);
+      item.append(speaker, utterance);
+      elements.transcriptList.append(item);
+    }
+  }
+  updateTimeReadout();
+}
+
+function restoreForm(review) {
+  elements.reviewForm.reset();
+  elements.formError.hidden = true;
+  const reviewer = review?.reviewer || localStorage.getItem("floor-reviewer") || "";
+  elements.reviewerInput.value = reviewer;
+  if (!review) {
+    elements.reviewForm.elements.anchor_adjustment_bins.value = "0";
+    elements.reviewForm.elements.behavior_adjustment_bins.value = "0";
+    elements.reviewForm.elements.region_end_adjustment_bins.value = "0";
+    elements.reviewForm.elements.confidence.value = "medium";
+    return;
+  }
+  for (const [name, value] of Object.entries(review)) {
+    const control = elements.reviewForm.elements[name];
+    if (!control) continue;
+    if (control instanceof RadioNodeList) control.value = String(value);
+    else control.value = value === null ? "" : String(value);
+  }
+}
+
+function formPayload() {
+  const data = new FormData(elements.reviewForm);
+  const adjustment = (name) => {
+    const value = data.get(name);
+    return value === "" ? null : Number(value);
+  };
+  return {
+    protocol_disposition: data.get("protocol_disposition"),
+    hard_negative_type: data.get("hard_negative_type"),
+    validity: data.get("validity"),
+    onset_function: data.get("onset_function"),
+    context: data.get("context"),
+    offset_outcome: data.get("offset_outcome"),
+    anchor_adjustment_bins: adjustment("anchor_adjustment_bins"),
+    behavior_adjustment_bins: adjustment("behavior_adjustment_bins"),
+    region_end_adjustment_bins: adjustment("region_end_adjustment_bins"),
+    confidence: data.get("confidence"),
+    reviewer: String(data.get("reviewer") || "").trim(),
+    notes: String(data.get("notes") || "").trim(),
+  };
+}
+
+function validateReview(review) {
+  const missing = [];
+  if (!review.protocol_disposition) missing.push("协议结论");
+  if (!review.hard_negative_type) missing.push("hard-negative 类型");
+  if (!review.validity) missing.push("活动边界");
+  if (!review.onset_function) missing.push("onset 功能");
+  if (!review.context) missing.push("对话场景");
+  if (!review.offset_outcome) missing.push("offset 结果");
+  if (!review.reviewer) missing.push("审核者");
+  return missing;
+}
+
+async function saveCurrent({ advance = true } = {}) {
+  if (!state.currentId || state.saving) return;
+  const review = formPayload();
+  const missing = validateReview(review);
+  if (missing.length) {
+    elements.formError.textContent = `请完成：${missing.join("、")}`;
+    elements.formError.hidden = false;
+    return;
+  }
+  elements.formError.hidden = true;
+  state.saving = true;
+  elements.saveButton.disabled = true;
+  elements.saveState.textContent = "保存中…";
+  try {
+    await request("/api/review", {
+      method: "POST",
+      headers: { "Content-Type": "application/json" },
+      body: JSON.stringify({ candidate_id: state.currentId, review }),
+    });
+    state.reviews[state.currentId] = review;
+    localStorage.setItem("floor-reviewer", review.reviewer);
+    elements.saveState.textContent = "已保存";
+    elements.saveState.classList.add("saved");
+    updateProgress();
+    toast("审核结果已保存");
+    if (advance) {
+      const previousCandidates = [...state.filtered];
+      const index = previousCandidates.findIndex((item) => item.candidate_id === state.currentId);
+      applyFilters();
+      const next = state.filtered[index] || state.filtered[index - 1] || state.filtered[0];
+      if (elements.statusFilter.value === "all") {
+        const sequential = previousCandidates[index + 1] || previousCandidates[index];
+        selectCandidate(sequential?.candidate_id || null);
+      } else {
+        selectCandidate(next?.candidate_id || null);
+      }
+    } else {
+      renderQueue();
+    }
+  } catch (error) {
+    elements.formError.textContent = error.message;
+    elements.formError.hidden = false;
+    elements.saveState.textContent = "保存失败";
+  } finally {
+    state.saving = false;
+    elements.saveButton.disabled = false;
+  }
+}
+
+function moveCandidate(delta) {
+  if (!state.filtered.length) return;
+  const index = state.filtered.findIndex((item) => item.candidate_id === state.currentId);
+  const nextIndex = Math.max(0, Math.min(state.filtered.length - 1, (index < 0 ? 0 : index) + delta));
+  selectCandidate(state.filtered[nextIndex].candidate_id);
+}
+
+function seek(delta) {
+  const video = elements.eventVideo;
+  if (!Number.isFinite(video.duration)) return;
+  video.currentTime = Math.max(0, Math.min(video.duration, video.currentTime + delta));
+}
+
+function jumpToEvent() {
+  const value = state.currentDetail?.event_local_seconds;
+  if (value !== null && value !== undefined) elements.eventVideo.currentTime = Number(value);
+}
+
+function updateTimeReadout() {
+  const eventTime = state.currentDetail?.event_local_seconds;
+  const current = Number.isFinite(elements.eventVideo.currentTime) ? elements.eventVideo.currentTime : 0;
+  const delta = eventTime === null || eventTime === undefined ? null : current - Number(eventTime);
+  elements.timeReadout.textContent = delta === null ? formatTime(current) : `${formatTime(current)} · event ${delta >= 0 ? "+" : ""}${delta.toFixed(1)} s`;
+}
+
+function isTypingTarget(target) {
+  return target instanceof HTMLInputElement || target instanceof HTMLTextAreaElement || target instanceof HTMLSelectElement;
+}
+
+function bindEvents() {
+  for (const control of [elements.sessionFilter, elements.splitFilter, elements.familyFilter, elements.statusFilter]) {
+    control.addEventListener("change", () => applyFilters({ keepCurrent: false }));
+  }
+  elements.searchFilter.addEventListener("input", () => applyFilters({ keepCurrent: false }));
+  elements.clearFilters.addEventListener("click", () => {
+    elements.sessionFilter.value = "all";
+    elements.splitFilter.value = "all";
+    elements.familyFilter.value = "all";
+    elements.statusFilter.value = "unreviewed";
+    elements.searchFilter.value = "";
+    applyFilters({ keepCurrent: false });
+  });
+  elements.reviewForm.addEventListener("submit", (event) => {
+    event.preventDefault();
+    saveCurrent();
+  });
+  elements.uncertainButton.addEventListener("click", () => {
+    elements.reviewForm.elements.protocol_disposition.value = "uncertain";
+    elements.reviewForm.elements.hard_negative_type.value = "uncertain";
+    elements.reviewForm.elements.validity.value = "uncertain";
+    elements.reviewForm.elements.onset_function.value = "uncertain";
+    elements.reviewForm.elements.context.value = "unknown";
+    elements.reviewForm.elements.offset_outcome.value = "uncertain";
+    elements.reviewForm.elements.confidence.value = "low";
+  });
+  elements.jumpEvent.addEventListener("click", jumpToEvent);
+  document.querySelectorAll("[data-seek]").forEach((button) =>
+    button.addEventListener("click", () => seek(Number(button.dataset.seek)))
+  );
+  elements.eventVideo.addEventListener("loadedmetadata", () => {
+    const start = state.currentDetail?.context_start_seconds;
+    if (start !== null && start !== undefined) elements.eventVideo.currentTime = Number(start);
+  });
+  elements.eventVideo.addEventListener("timeupdate", updateTimeReadout);
+  elements.eventVideo.addEventListener("error", () => { elements.mediaEmpty.hidden = false; });
+
+  document.addEventListener("keydown", (event) => {
+    if ((event.metaKey || event.ctrlKey) && event.key === "Enter") {
+      event.preventDefault();
+      saveCurrent();
+      return;
+    }
+    if (isTypingTarget(event.target)) return;
+    if (event.key === "ArrowLeft") { event.preventDefault(); moveCandidate(-1); }
+    else if (event.key === "ArrowRight") { event.preventDefault(); moveCandidate(1); }
+    else if (event.key === "[") { event.preventDefault(); seek(-0.2); }
+    else if (event.key === "]") { event.preventDefault(); seek(0.2); }
+    else if (event.code === "Space") {
+      event.preventDefault();
+      elements.eventVideo.paused ? elements.eventVideo.play() : elements.eventVideo.pause();
+    }
+  });
+}
+
+async function initialize() {
+  bindEvents();
+  try {
+    const payload = await request("/api/bootstrap");
+    state.candidates = payload.candidates;
+    state.reviews = payload.reviews || {};
+    populateSessions();
+    updateProgress();
+    applyFilters({ keepCurrent: false });
+  } catch (error) {
+    elements.progressText.textContent = "载入失败";
+    elements.progressMeta.textContent = error.message;
+    elements.eventTitle.textContent = "无法载入候选事件";
+    elements.eventSubtitle.textContent = error.message;
+  }
+}
+
+initialize();
diff --git a/floor_event_review_web/index.html b/floor_event_review_web/index.html
new file mode 100644
index 0000000..f4f0b5c
--- /dev/null
+++ b/floor_event_review_web/index.html
@@ -0,0 +1,285 @@
+<!doctype html>
+<html lang="zh-CN">
+  <head>
+    <meta charset="utf-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1" />
+    <meta name="description" content="EasyCom wearer floor-event local review workspace" />
+    <title>Floor Event Review</title>
+    <link rel="icon" type="image/svg+xml" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 64 64'%3E%3Crect width='64' height='64' rx='14' fill='%230b1324'/%3E%3Cpath d='M14 39h8l5-17 9 29 6-22 4 10h5' fill='none' stroke='%235eead4' stroke-width='5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E" />
+    <link rel="stylesheet" href="/app.css" />
+  </head>
+  <body>
+    <header class="topbar">
+      <div class="brand">
+        <span class="brand-mark" aria-hidden="true"></span>
+        <div>
+          <h1>Floor Event Review</h1>
+          <p>EasyCom 事件审核</p>
+        </div>
+      </div>
+      <div class="progress-block" aria-live="polite">
+        <div class="progress-copy">
+          <strong id="progressText">载入中</strong>
+          <span id="progressMeta">—</span>
+        </div>
+        <div class="progress-track"><span id="progressBar"></span></div>
+      </div>
+      <nav class="export-actions" aria-label="导出审核结果">
+        <a href="/api/export.jsonl" download>导出 JSONL</a>
+        <a href="/api/export.csv" download>导出 CSV</a>
+      </nav>
+    </header>
+
+    <section class="filters" aria-label="候选筛选">
+      <label>
+        <span>Session</span>
+        <select id="sessionFilter"><option value="all">全部</option></select>
+      </label>
+      <label>
+        <span>Split</span>
+        <select id="splitFilter">
+          <option value="all">全部</option>
+          <option value="train">train</option>
+          <option value="test">test</option>
+        </select>
+      </label>
+      <label>
+        <span>事件族</span>
+        <select id="familyFilter">
+          <option value="all">全部</option>
+          <option value="eot">EOT-response</option>
+          <option value="int">INT-yield</option>
+          <option value="onset">wearer onset</option>
+          <option value="offset">旧 EOT proxy</option>
+          <option value="interaction">旧 interaction proxy</option>
+        </select>
+      </label>
+      <label>
+        <span>审核状态</span>
+        <select id="statusFilter">
+          <option value="unreviewed">未审核</option>
+          <option value="all">全部</option>
+          <option value="reviewed">已审核</option>
+        </select>
+      </label>
+      <label class="search-field">
+        <span>搜索</span>
+        <input id="searchFilter" type="search" placeholder="UID、类别、session" />
+      </label>
+      <button id="clearFilters" class="button ghost" type="button">清除筛选</button>
+    </section>
+
+    <main class="workspace">
+      <aside class="queue-panel panel" aria-label="事件候选列表">
+        <div class="panel-heading">
+          <div>
+            <span class="eyebrow">QUEUE</span>
+            <h2 id="queueTitle">候选</h2>
+          </div>
+          <span id="queueCount" class="count-pill">0</span>
+        </div>
+        <div id="queueList" class="queue-list"></div>
+        <p id="queueLimit" class="queue-limit" hidden></p>
+      </aside>
+
+      <section class="evidence-panel panel" aria-label="事件证据">
+        <div class="event-header">
+          <div>
+            <div class="event-badges">
+              <span id="familyBadge" class="badge accent">—</span>
+              <span id="splitBadge" class="badge">—</span>
+              <span id="autoConfidenceBadge" class="badge">—</span>
+            </div>
+            <h2 id="eventTitle">请选择一个候选事件</h2>
+            <p id="eventSubtitle">—</p>
+          </div>
+          <div class="event-position"><strong id="eventPosition">0 / 0</strong></div>
+        </div>
+
+        <div id="llmSuggestion" class="llm-suggestion" hidden>
+          <strong>DeepSeek 预标注（仅供复核）</strong>
+          <span id="llmSuggestionText">—</span>
+        </div>
+
+        <div class="video-shell">
+          <video id="eventVideo" controls preload="metadata"></video>
+          <div id="mediaEmpty" class="empty-state" hidden>
+            <strong>当前候选未找到视频</strong>
+            <span>检查 dataset root、session 和 clip stem。</span>
+          </div>
+          <div class="time-marker" aria-hidden="true"><span></span></div>
+        </div>
+
+        <div class="transport" aria-label="视频定位">
+          <button type="button" data-seek="-2">−2 s</button>
+          <button type="button" data-seek="-0.2">−0.2 s</button>
+          <button id="jumpEvent" class="jump-event" type="button">回到事件</button>
+          <button type="button" data-seek="0.2">+0.2 s</button>
+          <button type="button" data-seek="2">+2 s</button>
+          <span id="timeReadout">—</span>
+        </div>
+
+        <section class="transcript-section">
+          <div class="section-heading">
+            <div>
+              <span class="eyebrow">TRANSCRIPT</span>
+              <h3>事件上下文</h3>
+            </div>
+            <span id="clipLabel">—</span>
+          </div>
+          <div id="transcriptList" class="transcript-list">
+            <div class="empty-copy">选择事件后显示 transcript。</div>
+          </div>
+        </section>
+
+        <details class="raw-details">
+          <summary>查看自动规则与原始候选字段</summary>
+          <pre id="rawCandidate">{}</pre>
+        </details>
+      </section>
+
+      <aside class="review-panel panel" aria-label="人工审核表单">
+        <div class="panel-heading review-heading">
+          <div>
+            <span class="eyebrow">HUMAN REVIEW</span>
+            <h2>审核结论</h2>
+          </div>
+          <span id="saveState" class="save-state">未保存</span>
+        </div>
+
+        <form id="reviewForm">
+          <fieldset>
+            <legend>1. 稿件协议结论 <span class="required">必填</span></legend>
+            <div class="choice-grid two compact">
+              <label><input type="radio" name="protocol_disposition" value="positive" /><span><b>Positive</b><small>EOT-response / INT-yield 正例</small></span></label>
+              <label><input type="radio" name="protocol_disposition" value="hard_negative" /><span><b>Hard negative</b><small>错误 commit 的计分区间</small></span></label>
+              <label><input type="radio" name="protocol_disposition" value="exclude" /><span><b>Exclude</b><small>歧义或标注损坏</small></span></label>
+              <label><input type="radio" name="protocol_disposition" value="uncertain" /><span><b>不确定</b><small>需要裁决</small></span></label>
+            </div>
+          </fieldset>
+
+          <fieldset>
+            <legend>2. Hard-negative 类型 <span class="required">必填</span></legend>
+            <div class="choice-grid two compact">
+              <label><input type="radio" name="hard_negative_type" value="eot_midturn_pause" /><span><b>EOT 句中停顿</b></span></label>
+              <label><input type="radio" name="hard_negative_type" value="eot_other_to_other" /><span><b>EOT other→other</b></span></label>
+              <label><input type="radio" name="hard_negative_type" value="eot_no_response" /><span><b>EOT 保持沉默</b></span></label>
+              <label><input type="radio" name="hard_negative_type" value="int_backchannel" /><span><b>INT backchannel</b></span></label>
+              <label><input type="radio" name="hard_negative_type" value="int_non_takeover_overlap" /><span><b>INT 非接管重叠</b></span></label>
+              <label><input type="radio" name="hard_negative_type" value="int_retain_floor" /><span><b>INT 保持话轮</b></span></label>
+              <label><input type="radio" name="hard_negative_type" value="other" /><span><b>其他</b></span></label>
+              <label><input type="radio" name="hard_negative_type" value="not_applicable" /><span><b>不适用</b></span></label>
+              <label><input type="radio" name="hard_negative_type" value="uncertain" /><span><b>不确定</b></span></label>
+            </div>
+          </fieldset>
+
+          <fieldset>
+            <legend>3. 活动边界是否真实？ <span class="required">必填</span></legend>
+            <div class="choice-grid three">
+              <label><input type="radio" name="validity" value="valid" /><span><b>真实</b><small>有效活动边界</small></span></label>
+              <label><input type="radio" name="validity" value="artifact" /><span><b>伪边界</b><small>噪声、断点或错标</small></span></label>
+              <label><input type="radio" name="validity" value="uncertain" /><span><b>不确定</b><small>证据不足</small></span></label>
+            </div>
+          </fieldset>
+
+          <fieldset>
+            <legend>4. Onset 的 floor 功能 <span class="required">必填</span></legend>
+            <div class="choice-grid two compact">
+              <label><input type="radio" name="onset_function" value="floor_taking" /><span><b>取得话轮</b></span></label>
+              <label><input type="radio" name="onset_function" value="backchannel" /><span><b>Backchannel</b></span></label>
+              <label><input type="radio" name="onset_function" value="within_turn_resume" /><span><b>句内恢复</b></span></label>
+              <label><input type="radio" name="onset_function" value="nonverbal" /><span><b>非语言发声</b></span></label>
+              <label><input type="radio" name="onset_function" value="not_applicable" /><span><b>不适用</b></span></label>
+              <label><input type="radio" name="onset_function" value="uncertain" /><span><b>不确定</b></span></label>
+            </div>
+          </fieldset>
+
+          <fieldset>
+            <legend>5. 对话指向/场景 <span class="required">必填</span></legend>
+            <div class="choice-grid two compact">
+              <label><input type="radio" name="context" value="addressed_wearer" /><span><b>对 wearer</b></span></label>
+              <label><input type="radio" name="context" value="third_party" /><span><b>第三方交谈</b></span></label>
+              <label><input type="radio" name="context" value="group" /><span><b>群体</b></span></label>
+              <label><input type="radio" name="context" value="unknown" /><span><b>未知</b></span></label>
+            </div>
+          </fieldset>
+
+          <fieldset>
+            <legend>6. Offset 的结果 <span class="required">必填</span></legend>
+            <div class="choice-grid two compact">
+              <label><input type="radio" name="offset_outcome" value="yield_to_other" /><span><b>让给 other</b></span></label>
+              <label><input type="radio" name="offset_outcome" value="completion_to_silence" /><span><b>结束后静音</b></span></label>
+              <label><input type="radio" name="offset_outcome" value="temporary_pause" /><span><b>短暂停顿</b></span></label>
+              <label><input type="radio" name="offset_outcome" value="backchannel_end" /><span><b>Backchannel 结束</b></span></label>
+              <label><input type="radio" name="offset_outcome" value="cutoff" /><span><b>截断/边界</b></span></label>
+              <label><input type="radio" name="offset_outcome" value="not_applicable" /><span><b>不适用</b></span></label>
+              <label><input type="radio" name="offset_outcome" value="uncertain" /><span><b>不确定</b></span></label>
+            </div>
+          </fieldset>
+
+          <div class="inline-fields">
+            <label>
+              <span>other 锚点校正</span>
+              <select name="anchor_adjustment_bins">
+                <option value="">无法判断</option>
+                <option value="-1">−1 bin（−200 ms）</option>
+                <option value="0" selected>原 bin</option>
+                <option value="1">+1 bin（+200 ms）</option>
+              </select>
+            </label>
+            <label>
+              <span>wearer 行为锚点校正</span>
+              <select name="behavior_adjustment_bins">
+                <option value="">不适用/无法判断</option>
+                <option value="-1">−1 bin（−200 ms）</option>
+                <option value="0" selected>原 bin</option>
+                <option value="1">+1 bin（+200 ms）</option>
+              </select>
+            </label>
+            <label>
+              <span>负区间终点校正</span>
+              <select name="region_end_adjustment_bins">
+                <option value="">不适用/无法判断</option>
+                <option value="-1">−1 bin（−200 ms）</option>
+                <option value="0" selected>原 bin</option>
+                <option value="1">+1 bin（+200 ms）</option>
+              </select>
+            </label>
+            <label>
+              <span>置信度</span>
+              <select name="confidence" required>
+                <option value="high">高</option>
+                <option value="medium" selected>中</option>
+                <option value="low">低</option>
+              </select>
+            </label>
+          </div>
+
+          <label class="text-field">
+            <span>审核者</span>
+            <input id="reviewerInput" name="reviewer" maxlength="100" placeholder="姓名或代号" required />
+          </label>
+          <label class="text-field">
+            <span>备注</span>
+            <textarea name="notes" maxlength="4000" rows="3" placeholder="记录歧义、说话对象或边界问题"></textarea>
+          </label>
+
+          <div id="formError" class="form-error" role="alert" hidden></div>
+          <div class="review-actions">
+            <button id="uncertainButton" class="button ghost" type="button">全部标为不确定</button>
+            <button id="saveButton" class="button primary" type="submit">保存并看下一个 <kbd>⌘↵</kbd></button>
+          </div>
+        </form>
+
+        <div class="shortcuts">
+          <span><kbd>←</kbd><kbd>→</kbd> 前后事件</span>
+          <span><kbd>[</kbd><kbd>]</kbd> ±200 ms</span>
+          <span><kbd>Space</kbd> 播放/暂停</span>
+        </div>
+      </aside>
+    </main>
+
+    <div id="toast" class="toast" role="status" aria-live="polite"></div>
+    <script src="/app.js" defer></script>
+  </body>
+</html>
diff --git a/prepare_easycom_eot_int_review.py b/prepare_easycom_eot_int_review.py
new file mode 100644
index 0000000..4352b52
--- /dev/null
+++ b/prepare_easycom_eot_int_review.py
@@ -0,0 +1,571 @@
+#!/usr/bin/env python3
+"""Prepare manuscript-aligned EasyCom EOT/INT regions for human review.
+
+The released EasyCom annotations provide participant-resolved speech intervals,
+not semantic EOT/INT ground truth.  This script therefore creates auditable
+candidate regions from the original 20 Hz timeline.  It keeps the two wearer-
+relative directions distinct:
+
+* EOT-response: an aggregate non-wearer offset while the wearer is silent;
+* INT-yield: an aggregate non-wearer onset while the wearer is speaking.
+
+Observed wearer transitions form timing-positive candidates.  Competing other
+transitions and fully observed no-transition windows form hard-negative
+candidates.  Source-boundary cases are retained as exclusions.  Every output
+row remains an automatic candidate until it is independently human reviewed.
+"""
+
+from __future__ import annotations
+
+import argparse
+from collections import Counter, defaultdict
+from dataclasses import asdict, dataclass
+import json
+from pathlib import Path
+import random
+from typing import Any, Iterable, Sequence
+
+from derive_easycom_interaction_events import (
+    CAMERA_WEARER_ID,
+    SOURCE_FPS,
+    Clip,
+    Rules,
+    Utterance,
+    build_clips,
+    is_lexical_feedback,
+    is_pure_nonverbal,
+    load_utterances,
+)
+from easycom_manifest import ALL_SESSIONS, TEST_SESSIONS
+
+
+SCHEMA_VERSION = 1
+PROTOCOL_VERSION = "easycom-manuscript-eot-int-v1"
+DEFAULT_WINDOW_SECONDS = 2.0
+
+
+@dataclass(frozen=True)
+class ProtocolCandidate:
+    schema_version: int
+    protocol_version: str
+    uid: str
+    session: str
+    split: str
+    task: str
+    event_type: str
+    automatic_protocol_label: str
+    automatic_hard_negative_type: str
+    automatic_confidence: str
+    anchor_type: str
+    anchor_dense_frame: int
+    anchor_dense_seconds: float
+    behavior_anchor_type: str | None
+    behavior_dense_frame: int | None
+    behavior_seconds: float | None
+    region_start_seconds: float
+    region_end_seconds: float
+    region_end_reason: str
+    previous_other_participant_ids: tuple[int, ...]
+    incoming_other_participant_ids: tuple[int, ...]
+    clip_stem: str
+    source_start_frame: int
+    context: tuple[dict[str, Any], ...]
+    automatic_reason: str
+
+
+def _fill_state(
+    rows: Sequence[Utterance],
+    *,
+    segment_start: int,
+    segment_end: int,
+    wearer_id: int,
+) -> tuple[bytearray, bytearray]:
+    length = segment_end - segment_start
+    wearer = bytearray(length)
+    others = bytearray(length)
+    for row in rows:
+        left = max(segment_start, row.dense_start_frame) - segment_start
+        right = min(segment_end, row.dense_end_frame_exclusive) - segment_start
+        if right <= left:
+            continue
+        target = wearer if row.participant_id == wearer_id else others
+        target[left:right] = b"\x01" * (right - left)
+    return wearer, others
+
+
+def _first_transition(
+    state: bytearray,
+    *,
+    start: int,
+    stop: int,
+    rising: bool,
+) -> int | None:
+    for index in range(max(1, start), min(stop, len(state))):
+        before = bool(state[index - 1])
+        after = bool(state[index])
+        if (not before and after) if rising else (before and not after):
+            return index
+    return None
+
+
+def _active_other_ids(
+    rows: Sequence[Utterance],
+    dense_frame: int,
+    *,
+    wearer_id: int,
+) -> tuple[int, ...]:
+    return tuple(sorted({
+        row.participant_id
+        for row in rows
+        if row.participant_id != wearer_id
+        and row.dense_start_frame <= dense_frame < row.dense_end_frame_exclusive
+    }))
+
+
+def _clip_for_frame(clips: Sequence[Clip], dense_frame: int) -> Clip | None:
+    return next(
+        (
+            clip
+            for clip in clips
+            if clip.dense_start_frame <= dense_frame < clip.dense_start_frame + clip.num_frames
+        ),
+        None,
+    )
+
+
+def _context_rows(
+    rows: Sequence[Utterance],
+    *,
+    anchor_frame: int,
+    context_frames: int,
+    wearer_id: int,
+) -> tuple[dict[str, Any], ...]:
+    left = anchor_frame - context_frames
+    right = anchor_frame + context_frames
+    selected = []
+    for row in rows:
+        if row.dense_end_frame_exclusive <= left or row.dense_start_frame >= right:
+            continue
+        selected.append(
+            {
+                "uid": row.uid,
+                "participant_id": row.participant_id,
+                "participant_role": "wearer" if row.participant_id == wearer_id else "other",
+                "start_seconds": row.dense_start_seconds,
+                "end_seconds": row.dense_end_seconds,
+                "transcription": row.transcription,
+                "target_of_speech": list(row.target_of_speech),
+            }
+        )
+    return tuple(selected)
+
+
+def _incoming_is_backchannel(
+    rows: Sequence[Utterance],
+    *,
+    dense_frame: int,
+    wearer_id: int,
+    max_seconds: float,
+) -> bool:
+    incoming = [
+        row
+        for row in rows
+        if row.participant_id != wearer_id
+        and row.dense_start_frame <= dense_frame < row.dense_end_frame_exclusive
+        and row.dense_start_frame >= dense_frame - 1
+    ]
+    return bool(incoming) and all(row.duration_seconds <= max_seconds for row in incoming) and any(
+        is_lexical_feedback(row.transcription) or is_pure_nonverbal(row.transcription)
+        for row in incoming
+    )
+
+
+def _candidate(
+    *,
+    session: str,
+    task: str,
+    automatic_protocol_label: str,
+    automatic_hard_negative_type: str,
+    anchor_frame: int,
+    behavior_frame: int | None,
+    region_end_frame: int,
+    region_end_reason: str,
+    previous_ids: tuple[int, ...],
+    incoming_ids: tuple[int, ...],
+    clips: Sequence[Clip],
+    rows: Sequence[Utterance],
+    wearer_id: int,
+    context_frames: int,
+    reason: str,
+) -> ProtocolCandidate:
+    clip = _clip_for_frame(clips, anchor_frame)
+    if clip is None:
+        raise ValueError(f"No source clip for {session} dense frame {anchor_frame}")
+    event_type = "eot_response_candidate" if task == "eot_response" else "int_yield_candidate"
+    anchor_type = "other_offset" if task == "eot_response" else "other_onset"
+    behavior_type = None
+    if behavior_frame is not None:
+        behavior_type = "wearer_onset" if task == "eot_response" else "wearer_offset"
+    return ProtocolCandidate(
+        schema_version=SCHEMA_VERSION,
+        protocol_version=PROTOCOL_VERSION,
+        uid=f"{session}/{task}/{anchor_frame:08d}",
+        session=session,
+        split="test" if session in TEST_SESSIONS else "train",
+        task=task,
+        event_type=event_type,
+        automatic_protocol_label=automatic_protocol_label,
+        automatic_hard_negative_type=automatic_hard_negative_type,
+        automatic_confidence="timing_candidate",
+        anchor_type=anchor_type,
+        anchor_dense_frame=anchor_frame,
+        anchor_dense_seconds=anchor_frame / SOURCE_FPS,
+        behavior_anchor_type=behavior_type,
+        behavior_dense_frame=behavior_frame,
+        behavior_seconds=None if behavior_frame is None else behavior_frame / SOURCE_FPS,
+        region_start_seconds=anchor_frame / SOURCE_FPS,
+        region_end_seconds=region_end_frame / SOURCE_FPS,
+        region_end_reason=region_end_reason,
+        previous_other_participant_ids=previous_ids,
+        incoming_other_participant_ids=incoming_ids,
+        clip_stem=clip.stem,
+        source_start_frame=anchor_frame - clip.dense_start_frame + 1,
+        context=_context_rows(
+            rows,
+            anchor_frame=anchor_frame,
+            context_frames=context_frames,
+            wearer_id=wearer_id,
+        ),
+        automatic_reason=reason,
+    )
+
+
+def derive_protocol_candidates(
+    utterances: Sequence[Utterance],
+    clips: Sequence[Clip],
+    *,
+    session: str,
+    wearer_id: int = CAMERA_WEARER_ID,
+    window_seconds: float = DEFAULT_WINDOW_SECONDS,
+    context_seconds: float = 3.0,
+) -> list[ProtocolCandidate]:
+    """Construct timing candidates with manuscript-aligned directionality."""
+
+    if window_seconds <= 0 or context_seconds < 0:
+        raise ValueError("window_seconds must be positive and context_seconds non-negative")
+    window_frames = max(1, round(window_seconds * SOURCE_FPS))
+    context_frames = max(0, round(context_seconds * SOURCE_FPS))
+    rows_by_segment: dict[int, list[Utterance]] = defaultdict(list)
+    clips_by_segment: dict[int, list[Clip]] = defaultdict(list)
+    for row in utterances:
+        rows_by_segment[row.segment_id].append(row)
+    for clip in clips:
+        clips_by_segment[clip.segment_id].append(clip)
+
+    candidates: list[ProtocolCandidate] = []
+    for segment_id, segment_clips in sorted(clips_by_segment.items()):
+        segment_clips.sort(key=lambda clip: clip.dense_start_frame)
+        segment_rows = sorted(
+            rows_by_segment.get(segment_id, []),
+            key=lambda row: (row.dense_start_frame, row.dense_end_frame_exclusive, row.uid),
+        )
+        segment_start = segment_clips[0].dense_start_frame
+        segment_end = segment_clips[-1].dense_start_frame + segment_clips[-1].num_frames
+        wearer, others = _fill_state(
+            segment_rows,
+            segment_start=segment_start,
+            segment_end=segment_end,
+            wearer_id=wearer_id,
+        )
+
+        for index in range(1, len(others)):
+            dense_frame = segment_start + index
+            if others[index - 1] and not others[index] and not wearer[index - 1]:
+                competing = _first_transition(
+                    others,
+                    start=index + 1,
+                    stop=min(len(others), index + window_frames + 1),
+                    rising=True,
+                )
+                nominal_end = index + window_frames
+                observable_end = min(nominal_end, len(others))
+                effective_end = min(observable_end, competing if competing is not None else observable_end)
+                outcome = _first_transition(
+                    wearer,
+                    start=index,
+                    stop=effective_end,
+                    rising=True,
+                )
+                previous_ids = _active_other_ids(
+                    segment_rows, dense_frame - 1, wearer_id=wearer_id
+                )
+                incoming_ids = (
+                    ()
+                    if competing is None
+                    else _active_other_ids(
+                        segment_rows, segment_start + competing, wearer_id=wearer_id
+                    )
+                )
+                if outcome is not None:
+                    label = "positive"
+                    subtype = "not_applicable"
+                    end_index = outcome
+                    end_reason = "wearer_onset"
+                    reason = "wearer onset observed after other offset and before competing other onset"
+                elif competing is not None:
+                    label = "hard_negative"
+                    subtype = (
+                        "eot_midturn_pause"
+                        if set(previous_ids) & set(incoming_ids)
+                        else "eot_other_to_other"
+                    )
+                    end_index = competing
+                    end_reason = "competing_other_onset"
+                    reason = "wearer remains silent until another non-wearer onset"
+                elif nominal_end <= len(others):
+                    label = "hard_negative"
+                    subtype = "eot_no_response"
+                    end_index = nominal_end
+                    end_reason = "full_window"
+                    reason = "wearer remains silent for the full observable response window"
+                else:
+                    label = "exclude"
+                    subtype = "other"
+                    end_index = len(others)
+                    end_reason = "right_censored"
+                    reason = "recording segment ends before a wearer outcome or full window"
+                candidates.append(_candidate(
+                    session=session,
+                    task="eot_response",
+                    automatic_protocol_label=label,
+                    automatic_hard_negative_type=subtype,
+                    anchor_frame=dense_frame,
+                    behavior_frame=None if outcome is None else segment_start + outcome,
+                    region_end_frame=segment_start + end_index,
+                    region_end_reason=end_reason,
+                    previous_ids=previous_ids,
+                    incoming_ids=incoming_ids,
+                    clips=segment_clips,
+                    rows=segment_rows,
+                    wearer_id=wearer_id,
+                    context_frames=context_frames,
+                    reason=reason,
+                ))
+
+            if not others[index - 1] and others[index] and wearer[index - 1]:
+                competing = _first_transition(
+                    others,
+                    start=index + 1,
+                    stop=min(len(others), index + window_frames + 1),
+                    rising=False,
+                )
+                nominal_end = index + window_frames
+                observable_end = min(nominal_end, len(others))
+                effective_end = min(observable_end, competing if competing is not None else observable_end)
+                outcome = _first_transition(
+                    wearer,
+                    start=index,
+                    stop=effective_end,
+                    rising=False,
+                )
+                previous_ids = _active_other_ids(
+                    segment_rows, dense_frame - 1, wearer_id=wearer_id
+                )
+                incoming_ids = _active_other_ids(
+                    segment_rows, dense_frame, wearer_id=wearer_id
+                )
+                if outcome is not None:
+                    label = "positive"
+                    subtype = "not_applicable"
+                    end_index = outcome
+                    end_reason = "wearer_offset"
+                    reason = "wearer offset observed after other onset and before competing other offset"
+                elif competing is not None:
+                    label = "hard_negative"
+                    subtype = (
+                        "int_backchannel"
+                        if _incoming_is_backchannel(
+                            segment_rows,
+                            dense_frame=dense_frame,
+                            wearer_id=wearer_id,
+                            max_seconds=1.0,
+                        )
+                        else "int_non_takeover_overlap"
+                    )
+                    end_index = competing
+                    end_reason = "competing_other_offset"
+                    reason = "wearer retains the floor until the incoming other activity ends"
+                elif nominal_end <= len(others):
+                    label = "hard_negative"
+                    subtype = "int_retain_floor"
+                    end_index = nominal_end
+                    end_reason = "full_window"
+                    reason = "wearer remains active through the full observable yield window"
+                else:
+                    label = "exclude"
+                    subtype = "other"
+                    end_index = len(others)
+                    end_reason = "right_censored"
+                    reason = "recording segment ends before a wearer outcome or full window"
+                candidates.append(_candidate(
+                    session=session,
+                    task="int_yield",
+                    automatic_protocol_label=label,
+                    automatic_hard_negative_type=subtype,
+                    anchor_frame=dense_frame,
+                    behavior_frame=None if outcome is None else segment_start + outcome,
+                    region_end_frame=segment_start + end_index,
+                    region_end_reason=end_reason,
+                    previous_ids=previous_ids,
+                    incoming_ids=incoming_ids,
+                    clips=segment_clips,
+                    rows=segment_rows,
+                    wearer_id=wearer_id,
+                    context_frames=context_frames,
+                    reason=reason,
+                ))
+
+    return sorted(candidates, key=lambda row: (row.anchor_dense_frame, row.task, row.uid))
+
+
+def stratified_limit(
+    rows: Sequence[ProtocolCandidate],
+    limit: int | None,
+    *,
+    seed: int,
+) -> list[ProtocolCandidate]:
+    if limit is None or limit >= len(rows):
+        return list(rows)
+    if limit < 0:
+        raise ValueError("--max-candidates must be non-negative")
+    rng = random.Random(seed)
+    buckets: dict[tuple[str, str, str], list[ProtocolCandidate]] = defaultdict(list)
+    for row in rows:
+        buckets[(row.task, row.automatic_protocol_label, row.automatic_hard_negative_type)].append(row)
+    keys = sorted(buckets)
+    for key in keys:
+        rng.shuffle(buckets[key])
+    rng.shuffle(keys)
+    selected: list[ProtocolCandidate] = []
+    while len(selected) < limit:
+        progressed = False
+        for key in keys:
+            if buckets[key]:
+                selected.append(buckets[key].pop())
+                progressed = True
+                if len(selected) == limit:
+                    break
+        if not progressed:
+            break
+    return sorted(selected, key=lambda row: (row.session, row.anchor_dense_frame, row.task))
+
+
+def _write_jsonl(path: Path, rows: Iterable[ProtocolCandidate]) -> None:
+    path.parent.mkdir(parents=True, exist_ok=True)
+    with path.open("w", encoding="utf-8") as handle:
+        for row in rows:
+            handle.write(json.dumps(asdict(row), ensure_ascii=False) + "\n")
+
+
+def parse_args() -> argparse.Namespace:
+    parser = argparse.ArgumentParser(description=__doc__)
+    parser.add_argument("--dataset-root", type=Path, required=True)
+    parser.add_argument("--output-dir", type=Path, required=True)
+    parser.add_argument("--sessions", nargs="+", default=list(ALL_SESSIONS))
+    parser.add_argument("--camera-wearer-id", type=int, default=CAMERA_WEARER_ID)
+    parser.add_argument("--window-seconds", type=float, default=DEFAULT_WINDOW_SECONDS)
+    parser.add_argument("--context-seconds", type=float, default=3.0)
+    parser.add_argument(
+        "--tasks",
+        nargs="+",
+        choices=("eot_response", "int_yield"),
+        default=("eot_response", "int_yield"),
+    )
+    parser.add_argument(
+        "--automatic-labels",
+        nargs="+",
+        choices=("positive", "hard_negative", "exclude"),
+        default=("positive", "hard_negative", "exclude"),
+    )
+    parser.add_argument("--max-candidates", type=int)
+    parser.add_argument("--selection-seed", type=int, default=2027)
+    return parser.parse_args()
+
+
+def main() -> None:
+    args = parse_args()
+    unknown = sorted(set(args.sessions) - set(ALL_SESSIONS))
+    if unknown:
+        raise ValueError(f"Unknown EasyCom sessions: {unknown}")
+    dataset_root = args.dataset_root.expanduser().resolve()
+    output_dir = args.output_dir.expanduser().resolve()
+    all_rows: list[ProtocolCandidate] = []
+    rules = Rules()
+    for session in args.sessions:
+        clips = build_clips(dataset_root, session, rules)
+        utterances = load_utterances(session, clips)
+        rows = derive_protocol_candidates(
+            utterances,
+            clips,
+            session=session,
+            wearer_id=args.camera_wearer_id,
+            window_seconds=args.window_seconds,
+            context_seconds=args.context_seconds,
+        )
+        all_rows.extend(rows)
+        counts = Counter((row.task, row.automatic_protocol_label) for row in rows)
+        print(f"{session}: candidates={len(rows)} counts={dict(sorted(counts.items()))}")
+
+    eligible = [
+        row
+        for row in all_rows
+        if row.task in set(args.tasks)
+        and row.automatic_protocol_label in set(args.automatic_labels)
+    ]
+    selected = stratified_limit(eligible, args.max_candidates, seed=args.selection_seed)
+    output_path = output_dir / "easycom_eot_int_candidates.jsonl"
+    _write_jsonl(output_path, selected)
+    counts = Counter(
+        (row.split, row.task, row.automatic_protocol_label, row.automatic_hard_negative_type)
+        for row in selected
+    )
+    summary = {
+        "schema_version": SCHEMA_VERSION,
+        "protocol_version": PROTOCOL_VERSION,
+        "dataset": "EasyCom",
+        "semantic_warning": (
+            "Automatic labels are timing candidates for independent human audit; "
+            "they are not semantic EOT/INT ground truth."
+        ),
+        "sessions": list(args.sessions),
+        "camera_wearer_id": args.camera_wearer_id,
+        "window_seconds": args.window_seconds,
+        "context_seconds": args.context_seconds,
+        "selection_seed": args.selection_seed,
+        "max_candidates": args.max_candidates,
+        "tasks": list(args.tasks),
+        "automatic_labels": list(args.automatic_labels),
+        "num_candidates_before_filter": len(all_rows),
+        "num_candidates_before_limit": len(eligible),
+        "num_candidates_written": len(selected),
+        "counts": [
+            {
+                "split": key[0],
+                "task": key[1],
+                "automatic_protocol_label": key[2],
+                "automatic_hard_negative_type": key[3],
+                "count": value,
+            }
+            for key, value in sorted(counts.items())
+        ],
+    }
+    output_dir.mkdir(parents=True, exist_ok=True)
+    (output_dir / "summary.json").write_text(
+        json.dumps(summary, indent=2, ensure_ascii=False) + "\n",
+        encoding="utf-8",
+    )
+    print(f"Saved {len(selected)} manuscript-aligned review candidates to {output_path}")
+
+
+if __name__ == "__main__":
+    main()
diff --git a/review_floor_events.py b/review_floor_events.py
new file mode 100644
index 0000000..573d4c6
--- /dev/null
+++ b/review_floor_events.py
@@ -0,0 +1,793 @@
+#!/usr/bin/env python3
+"""Serve a local, event-centered EasyCom annotation review workspace.
+
+The server reads JSONL candidates produced by
+``derive_easycom_interaction_events.py`` or ``audit_easycom_floor_events.py``.
+It serves only media inside the supplied EasyCom dataset root and stores human
+reviews outside the source dataset as an atomically rewritten JSONL file plus
+a CSV companion.
+"""
+
+from __future__ import annotations
+
+import argparse
+import csv
+from dataclasses import dataclass
+from datetime import datetime, timezone
+import hashlib
+from http import HTTPStatus
+from http.server import BaseHTTPRequestHandler, ThreadingHTTPServer
+import json
+import mimetypes
+import os
+from pathlib import Path
+import re
+import tempfile
+from threading import Lock
+from typing import Any, Iterable
+from urllib.parse import parse_qs, urlparse
+
+
+SOURCE_FPS = 20.0
+STATIC_ROOT = Path(__file__).resolve().parent / "floor_event_review_web"
+VIDEO_ROOT_PARTS = ("Main", "Video_Compressed")
+TRANSCRIPT_ROOT_PARTS = ("Main", "Speech_Transcriptions")
+REVIEW_SCHEMA_VERSION = 2
+MAX_REQUEST_BYTES = 128 * 1024
+
+PROTOCOL_DISPOSITION_VALUES = {"positive", "hard_negative", "exclude", "uncertain"}
+HARD_NEGATIVE_TYPE_VALUES = {
+    "eot_midturn_pause",
+    "eot_other_to_other",
+    "eot_no_response",
+    "int_backchannel",
+    "int_non_takeover_overlap",
+    "int_retain_floor",
+    "other",
+    "not_applicable",
+    "uncertain",
+}
+VALIDITY_VALUES = {"valid", "artifact", "uncertain"}
+ONSET_FUNCTION_VALUES = {
+    "floor_taking",
+    "backchannel",
+    "within_turn_resume",
+    "nonverbal",
+    "not_applicable",
+    "uncertain",
+}
+CONTEXT_VALUES = {"addressed_wearer", "third_party", "group", "unknown"}
+OFFSET_OUTCOME_VALUES = {
+    "yield_to_other",
+    "completion_to_silence",
+    "temporary_pause",
+    "backchannel_end",
+    "cutoff",
+    "not_applicable",
+    "uncertain",
+}
+CONFIDENCE_VALUES = {"high", "medium", "low"}
+
+
+@dataclass(frozen=True)
+class Candidate:
+    candidate_id: str
+    source_path: Path
+    source_row: int
+    payload: dict[str, Any]
+
+    @property
+    def uid(self) -> str:
+        return str(
+            self.payload.get("uid")
+            or self.payload.get("holder_uid")
+            or f"{self.source_path.name}:{self.source_row}"
+        )
+
+    @property
+    def session(self) -> str:
+        return str(self.payload.get("session", "unknown"))
+
+    @property
+    def split(self) -> str:
+        return str(self.payload.get("split", "unknown"))
+
+    @property
+    def automatic_label(self) -> str:
+        return str(
+            self.payload.get("event_type")
+            or self.payload.get("category")
+            or self.payload.get("proxy_group")
+            or "unclassified"
+        )
+
+    @property
+    def task(self) -> str | None:
+        value = self.payload.get("task")
+        return None if value is None else str(value)
+
+    @property
+    def family(self) -> str:
+        if self.task == "eot_response":
+            return "eot"
+        if self.task == "int_yield":
+            return "int"
+        if "holder_uid" in self.payload or self.automatic_label.startswith("eot_"):
+            return "offset"
+        if self.payload.get("participant_role") == "wearer":
+            return "onset"
+        return "interaction"
+
+
+def _json_default(value: Any) -> Any:
+    if isinstance(value, Path):
+        return str(value)
+    raise TypeError(f"Cannot serialize {type(value).__name__}")
+
+
+def _read_jsonl(path: Path) -> list[dict[str, Any]]:
+    rows: list[dict[str, Any]] = []
+    with path.open("r", encoding="utf-8") as handle:
+        for line_number, raw_line in enumerate(handle, 1):
+            line = raw_line.strip()
+            if not line:
+                continue
+            try:
+                row = json.loads(line)
+            except json.JSONDecodeError as error:
+                raise ValueError(f"Invalid JSON at {path}:{line_number}: {error}") from error
+            if not isinstance(row, dict):
+                raise ValueError(f"Expected a JSON object at {path}:{line_number}")
+            rows.append(row)
+    return rows
+
+
+def expand_candidate_paths(values: Iterable[Path], *, output_path: Path) -> list[Path]:
+    paths: list[Path] = []
+    output_resolved = output_path.expanduser().resolve()
+    for raw_path in values:
+        path = raw_path.expanduser().resolve()
+        if path.is_dir():
+            paths.extend(sorted(path.glob("Session_*.events.jsonl")))
+            paths.extend(sorted(path.glob("easycom_*_candidates.jsonl")))
+        elif path.is_file():
+            paths.append(path)
+        else:
+            raise FileNotFoundError(path)
+    unique: list[Path] = []
+    seen: set[Path] = set()
+    for path in paths:
+        resolved = path.resolve()
+        if resolved == output_resolved or resolved in seen:
+            continue
+        if resolved.suffix.lower() != ".jsonl":
+            raise ValueError(f"Candidate input must be JSONL: {resolved}")
+        seen.add(resolved)
+        unique.append(resolved)
+    if not unique:
+        raise FileNotFoundError("No candidate JSONL files found")
+    return unique
+
+
+def _candidate_digest(path: Path, source_row: int, payload: dict[str, Any]) -> str:
+    identity = {
+        "source_name": path.name,
+        "source_row": source_row,
+        "uid": payload.get("uid") or payload.get("holder_uid"),
+        "session": payload.get("session"),
+        "event_type": payload.get("event_type"),
+        "task": payload.get("task"),
+        "category": payload.get("category"),
+        "dense_start_seconds": payload.get("dense_start_seconds"),
+        "anchor_dense_seconds": payload.get("anchor_dense_seconds"),
+        "boundary_seconds": payload.get("boundary_seconds"),
+    }
+    encoded = json.dumps(identity, sort_keys=True, ensure_ascii=False).encode("utf-8")
+    return hashlib.sha256(encoded).hexdigest()[:20]
+
+
+def load_candidates(paths: Iterable[Path]) -> list[Candidate]:
+    candidates: list[Candidate] = []
+    ids: set[str] = set()
+    for path in paths:
+        for source_row, payload in enumerate(_read_jsonl(path), 1):
+            candidate_id = _candidate_digest(path, source_row, payload)
+            if candidate_id in ids:
+                raise ValueError(f"Duplicate candidate identity in {path}:{source_row}")
+            ids.add(candidate_id)
+            candidates.append(Candidate(candidate_id, path, source_row, payload))
+    if not candidates:
+        raise ValueError("Candidate files contain no rows")
+    return candidates
+
+
+def _uid_parts(value: Any) -> tuple[str, str, int] | None:
+    if not isinstance(value, str):
+        return None
+    parts = value.split("/")
+    if len(parts) < 3 or not parts[-1].isdigit():
+        return None
+    return parts[-3], parts[-2], int(parts[-1])
+
+
+def _within_root(path: Path, root: Path) -> bool:
+    try:
+        path.resolve().relative_to(root.resolve())
+        return True
+    except ValueError:
+        return False
+
+
+class CandidateRepository:
+    def __init__(
+        self,
+        candidates: list[Candidate],
+        dataset_root: Path,
+        *,
+        context_before_seconds: float,
+        context_after_seconds: float,
+    ) -> None:
+        self.candidates = candidates
+        self.by_id = {candidate.candidate_id: candidate for candidate in candidates}
+        self.dataset_root = dataset_root.expanduser().resolve()
+        self.context_before_seconds = context_before_seconds
+        self.context_after_seconds = context_after_seconds
+        self._transcript_cache: dict[tuple[str, str], list[dict[str, Any]]] = {}
+
+    def _transcript(self, session: str, clip_stem: str) -> list[dict[str, Any]]:
+        key = (session, clip_stem)
+        if key not in self._transcript_cache:
+            path = self.dataset_root.joinpath(
+                *TRANSCRIPT_ROOT_PARTS, session, f"{clip_stem}.json"
+            )
+            if not path.is_file() or not _within_root(path, self.dataset_root):
+                self._transcript_cache[key] = []
+            else:
+                payload = json.loads(path.read_text(encoding="utf-8"))
+                if not isinstance(payload, list):
+                    raise ValueError(f"Expected transcript list: {path}")
+                self._transcript_cache[key] = [
+                    row for row in payload if isinstance(row, dict)
+                ]
+        return self._transcript_cache[key]
+
+    def _location(self, candidate: Candidate) -> tuple[str | None, float | None, int | None]:
+        row = candidate.payload
+        clip_stem = row.get("clip_stem")
+        transcript_index: int | None = None
+        uid = _uid_parts(row.get("uid")) or _uid_parts(row.get("holder_uid"))
+        if uid is not None:
+            uid_session, uid_stem, transcript_index = uid
+            if uid_session == candidate.session:
+                clip_stem = clip_stem or uid_stem
+
+        local_seconds: float | None = None
+        if row.get("source_start_frame") is not None:
+            local_seconds = max(0.0, (float(row["source_start_frame"]) - 1.0) / SOURCE_FPS)
+        elif clip_stem and transcript_index is not None:
+            transcript = self._transcript(candidate.session, str(clip_stem))
+            if 0 <= transcript_index < len(transcript):
+                source_row = transcript[transcript_index]
+                frame_key = "End_Frame" if candidate.family == "offset" else "Start_Frame"
+                if source_row.get(frame_key) is not None:
+                    frame = float(source_row[frame_key])
+                    local_seconds = max(
+                        0.0,
+                        frame / SOURCE_FPS if frame_key == "End_Frame" else (frame - 1.0) / SOURCE_FPS,
+                    )
+        return (None if clip_stem is None else str(clip_stem), local_seconds, transcript_index)
+
+    def media_path(self, candidate: Candidate) -> Path | None:
+        clip_stem, _, _ = self._location(candidate)
+        if clip_stem is None:
+            return None
+        path = self.dataset_root.joinpath(
+            *VIDEO_ROOT_PARTS, candidate.session, f"{clip_stem}.mp4"
+        ).resolve()
+        if not _within_root(path, self.dataset_root) or not path.is_file():
+            return None
+        return path
+
+    def summary(self, candidate: Candidate, reviewed: bool) -> dict[str, Any]:
+        row = candidate.payload
+        event_time = row.get(
+            "anchor_dense_seconds",
+            row.get("dense_start_seconds", row.get("boundary_seconds")),
+        )
+        return {
+            "candidate_id": candidate.candidate_id,
+            "uid": candidate.uid,
+            "session": candidate.session,
+            "split": candidate.split,
+            "family": candidate.family,
+            "task": candidate.task,
+            "automatic_label": candidate.automatic_label,
+            "automatic_protocol_label": row.get("automatic_protocol_label"),
+            "automatic_hard_negative_type": row.get("automatic_hard_negative_type"),
+            "automatic_confidence": row.get("automatic_confidence", row.get("confidence")),
+            "llm_suggestion": row.get("llm_suggestion"),
+            "participant_role": row.get("participant_role") or row.get("holder_role"),
+            "event_time_seconds": event_time,
+            "reviewed": reviewed,
+        }
+
+    def detail(self, candidate: Candidate) -> dict[str, Any]:
+        clip_stem, local_seconds, transcript_index = self._location(candidate)
+        transcript_rows: list[dict[str, Any]] = []
+        if clip_stem is not None:
+            for index, row in enumerate(self._transcript(candidate.session, clip_stem)):
+                try:
+                    start = max(0.0, (float(row.get("Start_Frame", 1)) - 1.0) / SOURCE_FPS)
+                    end = max(start, float(row.get("End_Frame", 1)) / SOURCE_FPS)
+                except (TypeError, ValueError):
+                    continue
+                if local_seconds is not None and (
+                    end < local_seconds - self.context_before_seconds
+                    or start > local_seconds + self.context_after_seconds
+                ):
+                    continue
+                transcript_rows.append(
+                    {
+                        "index": index,
+                        "start_seconds": start,
+                        "end_seconds": end,
+                        "participant_id": row.get("Participant_ID"),
+                        "target_of_speech": row.get("Target_of_Speech"),
+                        "transcription": str(row.get("Transcription", "")),
+                        "is_anchor": (
+                            index == transcript_index
+                            or (
+                                transcript_index is None
+                                and local_seconds is not None
+                                and start <= local_seconds <= end
+                            )
+                        ),
+                    }
+                )
+
+        media_path = self.media_path(candidate)
+        return {
+            **self.summary(candidate, reviewed=False),
+            "source_file": candidate.source_path.name,
+            "source_row": candidate.source_row,
+            "clip_stem": clip_stem,
+            "event_local_seconds": local_seconds,
+            "context_start_seconds": (
+                None
+                if local_seconds is None
+                else max(0.0, local_seconds - self.context_before_seconds)
+            ),
+            "context_end_seconds": (
+                None
+                if local_seconds is None
+                else local_seconds + self.context_after_seconds
+            ),
+            "media_available": media_path is not None,
+            "transcript_available": bool(transcript_rows),
+            "transcript": transcript_rows,
+            "candidate": candidate.payload,
+        }
+
+
+class ReviewStore:
+    def __init__(self, output_path: Path, candidates: list[Candidate]) -> None:
+        self.output_path = output_path.expanduser().resolve()
+        self.csv_path = self.output_path.with_suffix(".csv")
+        self.candidates = {candidate.candidate_id: candidate for candidate in candidates}
+        self.order = {candidate.candidate_id: index for index, candidate in enumerate(candidates)}
+        self.lock = Lock()
+        self.reviews: dict[str, dict[str, Any]] = {}
+        if self.output_path.is_file():
+            for row in _read_jsonl(self.output_path):
+                candidate_id = row.get("candidate_id")
+                if isinstance(candidate_id, str) and candidate_id in self.candidates:
+                    self.reviews[candidate_id] = row
+
+    def _validated_review(self, candidate_id: str, payload: Any) -> dict[str, Any]:
+        if candidate_id not in self.candidates:
+            raise ValueError("Unknown candidate_id")
+        if not isinstance(payload, dict):
+            raise ValueError("review must be an object")
+
+        required_choices = {
+            "protocol_disposition": PROTOCOL_DISPOSITION_VALUES,
+            "hard_negative_type": HARD_NEGATIVE_TYPE_VALUES,
+            "validity": VALIDITY_VALUES,
+            "onset_function": ONSET_FUNCTION_VALUES,
+            "context": CONTEXT_VALUES,
+            "offset_outcome": OFFSET_OUTCOME_VALUES,
+            "confidence": CONFIDENCE_VALUES,
+        }
+        normalized: dict[str, Any] = {}
+        for key, allowed in required_choices.items():
+            value = payload.get(key)
+            if value not in allowed:
+                raise ValueError(f"Invalid {key}: {value!r}")
+            normalized[key] = value
+
+        for key in (
+            "anchor_adjustment_bins",
+            "behavior_adjustment_bins",
+            "region_end_adjustment_bins",
+        ):
+            adjustment = payload.get(key)
+            if adjustment not in {-1, 0, 1, None}:
+                raise ValueError(f"{key} must be -1, 0, 1, or null")
+            normalized[key] = adjustment
+
+        reviewer = str(payload.get("reviewer", "")).strip()
+        notes = str(payload.get("notes", "")).strip()
+        if len(reviewer) > 100:
+            raise ValueError("reviewer is too long")
+        if not reviewer:
+            raise ValueError("reviewer is required")
+        if len(notes) > 4000:
+            raise ValueError("notes are too long")
+        normalized["reviewer"] = reviewer
+        normalized["notes"] = notes
+        return normalized
+
+    def save(self, candidate_id: str, review: Any) -> dict[str, Any]:
+        normalized = self._validated_review(candidate_id, review)
+        candidate = self.candidates[candidate_id]
+        record = {
+            "schema_version": REVIEW_SCHEMA_VERSION,
+            "candidate_id": candidate_id,
+            "candidate_uid": candidate.uid,
+            "source_file": candidate.source_path.name,
+            "source_row": candidate.source_row,
+            "session": candidate.session,
+            "split": candidate.split,
+            "candidate_family": candidate.family,
+            "task": candidate.task,
+            "automatic_label": candidate.automatic_label,
+            "automatic_protocol_label": candidate.payload.get("automatic_protocol_label"),
+            "automatic_hard_negative_type": candidate.payload.get(
+                "automatic_hard_negative_type"
+            ),
+            "review": normalized,
+            "updated_at": datetime.now(timezone.utc).isoformat(),
+            "candidate": candidate.payload,
+        }
+        with self.lock:
+            self.reviews[candidate_id] = record
+            self._write_locked()
+        return record
+
+    def _ordered(self) -> list[dict[str, Any]]:
+        return sorted(
+            self.reviews.values(),
+            key=lambda row: self.order.get(str(row.get("candidate_id")), 10**12),
+        )
+
+    def _atomic_text(self, path: Path, write: Any) -> None:
+        path.parent.mkdir(parents=True, exist_ok=True)
+        temporary_name: str | None = None
+        try:
+            with tempfile.NamedTemporaryFile(
+                "w", encoding="utf-8", newline="", dir=path.parent, delete=False
+            ) as handle:
+                temporary_name = handle.name
+                write(handle)
+                handle.flush()
+                os.fsync(handle.fileno())
+            os.replace(temporary_name, path)
+        finally:
+            if temporary_name is not None and Path(temporary_name).exists():
+                Path(temporary_name).unlink()
+
+    def _write_locked(self) -> None:
+        rows = self._ordered()
+
+        def write_jsonl(handle: Any) -> None:
+            for row in rows:
+                handle.write(json.dumps(row, ensure_ascii=False, default=_json_default) + "\n")
+
+        self._atomic_text(self.output_path, write_jsonl)
+
+        fieldnames = [
+            "candidate_id",
+            "candidate_uid",
+            "source_file",
+            "source_row",
+            "session",
+            "split",
+            "candidate_family",
+            "task",
+            "automatic_label",
+            "automatic_protocol_label",
+            "automatic_hard_negative_type",
+            "protocol_disposition",
+            "hard_negative_type",
+            "validity",
+            "onset_function",
+            "context",
+            "offset_outcome",
+            "anchor_adjustment_bins",
+            "behavior_adjustment_bins",
+            "region_end_adjustment_bins",
+            "confidence",
+            "reviewer",
+            "notes",
+            "updated_at",
+        ]
+
+        def write_csv(handle: Any) -> None:
+            writer = csv.DictWriter(handle, fieldnames=fieldnames)
+            writer.writeheader()
+            for row in rows:
+                review = row["review"]
+                writer.writerow(
+                    {
+                        key: review.get(key) if key in review else row.get(key)
+                        for key in fieldnames
+                    }
+                )
+
+        self._atomic_text(self.csv_path, write_csv)
+
+
+def parse_byte_range(value: str | None, size: int) -> tuple[int, int] | None:
+    if not value:
+        return None
+    match = re.fullmatch(r"bytes=(\d*)-(\d*)", value.strip())
+    if match is None:
+        raise ValueError("Invalid Range header")
+    start_text, end_text = match.groups()
+    if not start_text and not end_text:
+        raise ValueError("Invalid empty Range header")
+    if not start_text:
+        suffix = int(end_text)
+        if suffix <= 0:
+            raise ValueError("Invalid suffix Range")
+        return max(0, size - suffix), size - 1
+    start = int(start_text)
+    end = size - 1 if not end_text else int(end_text)
+    if start >= size or start < 0 or end < start:
+        raise ValueError("Unsatisfiable Range")
+    return start, min(end, size - 1)
+
+
+class ReviewHTTPServer(ThreadingHTTPServer):
+    daemon_threads = True
+
+    def __init__(
+        self,
+        address: tuple[str, int],
+        repository: CandidateRepository,
+        store: ReviewStore,
+    ) -> None:
+        super().__init__(address, ReviewRequestHandler)
+        self.repository = repository
+        self.store = store
+
+
+class ReviewRequestHandler(BaseHTTPRequestHandler):
+    server: ReviewHTTPServer
+
+    def log_message(self, format: str, *args: Any) -> None:
+        print(f"[{self.log_date_time_string()}] {format % args}")
+
+    def _json(self, payload: Any, status: int = HTTPStatus.OK) -> None:
+        body = json.dumps(payload, ensure_ascii=False, default=_json_default).encode("utf-8")
+        self.send_response(status)
+        self.send_header("Content-Type", "application/json; charset=utf-8")
+        self.send_header("Content-Length", str(len(body)))
+        self.send_header("Cache-Control", "no-store")
+        self.end_headers()
+        if self.command != "HEAD":
+            self.wfile.write(body)
+
+    def _error(self, message: str, status: int = HTTPStatus.BAD_REQUEST) -> None:
+        self._json({"error": message}, status)
+
+    def _candidate_from_query(self, query: dict[str, list[str]]) -> Candidate | None:
+        candidate_id = query.get("id", [""])[0]
+        return self.server.repository.by_id.get(candidate_id)
+
+    def do_GET(self) -> None:
+        parsed = urlparse(self.path)
+        query = parse_qs(parsed.query)
+        if parsed.path == "/api/bootstrap":
+            store = self.server.store
+            repository = self.server.repository
+            self._json(
+                {
+                    "schema_version": REVIEW_SCHEMA_VERSION,
+                    "candidate_count": len(repository.candidates),
+                    "reviewed_count": len(store.reviews),
+                    "output_name": store.output_path.name,
+                    "candidates": [
+                        repository.summary(
+                            candidate, candidate.candidate_id in store.reviews
+                        )
+                        for candidate in repository.candidates
+                    ],
+                    "reviews": {
+                        candidate_id: row["review"]
+                        for candidate_id, row in store.reviews.items()
+                    },
+                }
+            )
+            return
+        if parsed.path == "/api/event":
+            candidate = self._candidate_from_query(query)
+            if candidate is None:
+                self._error("Unknown candidate", HTTPStatus.NOT_FOUND)
+                return
+            detail = self.server.repository.detail(candidate)
+            detail["review"] = self.server.store.reviews.get(candidate.candidate_id, {}).get(
+                "review"
+            )
+            self._json(detail)
+            return
+        if parsed.path == "/api/export.jsonl":
+            self._send_download(self.server.store.output_path, "application/x-ndjson")
+            return
+        if parsed.path == "/api/export.csv":
+            self._send_download(self.server.store.csv_path, "text/csv; charset=utf-8")
+            return
+        if parsed.path == "/media":
+            candidate = self._candidate_from_query(query)
+            if candidate is None:
+                self._error("Unknown candidate", HTTPStatus.NOT_FOUND)
+                return
+            media_path = self.server.repository.media_path(candidate)
+            if media_path is None:
+                self._error("Media unavailable", HTTPStatus.NOT_FOUND)
+                return
+            self._send_media(media_path)
+            return
+        self._send_static(parsed.path)
+
+    def do_HEAD(self) -> None:
+        self.do_GET()
+
+    def do_POST(self) -> None:
+        parsed = urlparse(self.path)
+        if parsed.path != "/api/review":
+            self._error("Unknown endpoint", HTTPStatus.NOT_FOUND)
+            return
+        try:
+            length = int(self.headers.get("Content-Length", "0"))
+        except ValueError:
+            self._error("Invalid Content-Length")
+            return
+        if length <= 0 or length > MAX_REQUEST_BYTES:
+            self._error("Invalid request size")
+            return
+        try:
+            payload = json.loads(self.rfile.read(length).decode("utf-8"))
+            if not isinstance(payload, dict):
+                raise ValueError("Payload must be an object")
+            candidate_id = str(payload.get("candidate_id", ""))
+            record = self.server.store.save(candidate_id, payload.get("review"))
+        except (UnicodeDecodeError, json.JSONDecodeError, ValueError) as error:
+            self._error(str(error))
+            return
+        self._json({"saved": True, "record": record})
+
+    def _send_static(self, request_path: str) -> None:
+        name = "index.html" if request_path in {"", "/"} else request_path.lstrip("/")
+        if name not in {"index.html", "app.css", "app.js"}:
+            self.send_error(HTTPStatus.NOT_FOUND)
+            return
+        path = (STATIC_ROOT / name).resolve()
+        if not _within_root(path, STATIC_ROOT) or not path.is_file():
+            self.send_error(HTTPStatus.NOT_FOUND)
+            return
+        content_type = mimetypes.guess_type(path.name)[0] or "application/octet-stream"
+        body = path.read_bytes()
+        self.send_response(HTTPStatus.OK)
+        self.send_header("Content-Type", f"{content_type}; charset=utf-8")
+        self.send_header("Content-Length", str(len(body)))
+        self.send_header("Cache-Control", "no-cache")
+        self.end_headers()
+        if self.command != "HEAD":
+            self.wfile.write(body)
+
+    def _send_download(self, path: Path, content_type: str) -> None:
+        if not path.is_file():
+            self._error("No reviews have been saved yet", HTTPStatus.NOT_FOUND)
+            return
+        body = path.read_bytes()
+        self.send_response(HTTPStatus.OK)
+        self.send_header("Content-Type", content_type)
+        self.send_header("Content-Disposition", f'attachment; filename="{path.name}"')
+        self.send_header("Content-Length", str(len(body)))
+        self.send_header("Cache-Control", "no-store")
+        self.end_headers()
+        if self.command != "HEAD":
+            self.wfile.write(body)
+
+    def _send_media(self, path: Path) -> None:
+        size = path.stat().st_size
+        try:
+            byte_range = parse_byte_range(self.headers.get("Range"), size)
+        except ValueError:
+            self.send_response(HTTPStatus.REQUESTED_RANGE_NOT_SATISFIABLE)
+            self.send_header("Content-Range", f"bytes */{size}")
+            self.end_headers()
+            return
+        start, end = byte_range or (0, size - 1)
+        status = HTTPStatus.PARTIAL_CONTENT if byte_range is not None else HTTPStatus.OK
+        self.send_response(status)
+        self.send_header("Content-Type", mimetypes.guess_type(path.name)[0] or "video/mp4")
+        self.send_header("Accept-Ranges", "bytes")
+        self.send_header("Content-Length", str(end - start + 1))
+        if byte_range is not None:
+            self.send_header("Content-Range", f"bytes {start}-{end}/{size}")
+        self.end_headers()
+        if self.command == "HEAD":
+            return
+        with path.open("rb") as handle:
+            handle.seek(start)
+            remaining = end - start + 1
+            while remaining:
+                chunk = handle.read(min(64 * 1024, remaining))
+                if not chunk:
+                    break
+                self.wfile.write(chunk)
+                remaining -= len(chunk)
+
+
+def parse_args() -> argparse.Namespace:
+    parser = argparse.ArgumentParser(description=__doc__)
+    parser.add_argument(
+        "--events",
+        type=Path,
+        nargs="+",
+        required=True,
+        help="Candidate JSONL files or directories containing generated candidates.",
+    )
+    parser.add_argument("--dataset-root", type=Path, required=True)
+    parser.add_argument(
+        "--output",
+        type=Path,
+        default=Path("reports/easycom_event_reviews/reviews.jsonl"),
+    )
+    parser.add_argument("--host", default="127.0.0.1")
+    parser.add_argument("--port", type=int, default=8765)
+    parser.add_argument("--context-before-seconds", type=float, default=3.0)
+    parser.add_argument("--context-after-seconds", type=float, default=3.0)
+    return parser.parse_args()
+
+
+def main() -> None:
+    args = parse_args()
+    if not STATIC_ROOT.is_dir():
+        raise FileNotFoundError(f"Review UI assets are missing: {STATIC_ROOT}")
+    dataset_root = args.dataset_root.expanduser().resolve()
+    if not dataset_root.is_dir():
+        raise FileNotFoundError(dataset_root)
+    if not 1 <= args.port <= 65535:
+        raise ValueError("--port must be in [1, 65535]")
+    if args.context_before_seconds < 0 or args.context_after_seconds < 0:
+        raise ValueError("Context durations must be non-negative")
+
+    output_path = args.output.expanduser().resolve()
+    candidate_paths = expand_candidate_paths(args.events, output_path=output_path)
+    candidates = load_candidates(candidate_paths)
+    repository = CandidateRepository(
+        candidates,
+        dataset_root,
+        context_before_seconds=args.context_before_seconds,
+        context_after_seconds=args.context_after_seconds,
+    )
+    store = ReviewStore(output_path, candidates)
+    server = ReviewHTTPServer((args.host, args.port), repository, store)
+    actual_host, actual_port = server.server_address[:2]
+    print(f"Loaded {len(candidates)} candidates from {len(candidate_paths)} JSONL file(s)")
+    print(f"Resuming {len(store.reviews)} saved reviews")
+    print(f"Review workspace: http://{actual_host}:{actual_port}")
+    print(f"Review output: {store.output_path}")
+    try:
+        server.serve_forever()
+    except KeyboardInterrupt:
+        print("\nStopping review workspace")
+    finally:
+        server.server_close()
+
+
+if __name__ == "__main__":
+    main()
diff --git a/test_adjudicate_easycom_eot_int_candidates.py b/test_adjudicate_easycom_eot_int_candidates.py
new file mode 100644
index 0000000..3109897
--- /dev/null
+++ b/test_adjudicate_easycom_eot_int_candidates.py
@@ -0,0 +1,38 @@
+"""Tests for EOT/INT DeepSeek suggestion validation without network calls."""
+
+from __future__ import annotations
+
+import unittest
+
+from adjudicate_easycom_eot_int_candidates import build_user_prompt, validate_decisions
+
+
+class EOTINTAdjudicationTests(unittest.TestCase):
+    def test_prompt_contains_task_and_context(self) -> None:
+        prompt = build_user_prompt(
+            [{"uid": "u1", "task": "eot_response", "context": [{"transcription": "Yes."}]}],
+            0,
+        )
+        self.assertIn("eot_response", prompt)
+        self.assertIn("Yes.", prompt)
+
+    def test_decisions_require_exact_uid_and_vocabulary(self) -> None:
+        payload = {
+            "items": [
+                {
+                    "uid": "u1",
+                    "protocol_disposition": "hard_negative",
+                    "hard_negative_type": "int_backchannel",
+                    "confidence": "high",
+                    "rationale": "Brief feedback while the wearer continues.",
+                }
+            ]
+        }
+        decisions = validate_decisions(payload, ["u1"])
+        self.assertEqual(decisions[0]["hard_negative_type"], "int_backchannel")
+        with self.assertRaisesRegex(ValueError, "mismatch"):
+            validate_decisions({"items": []}, ["u1"])
+
+
+if __name__ == "__main__":
+    unittest.main()
diff --git a/test_prepare_easycom_eot_int_review.py b/test_prepare_easycom_eot_int_review.py
new file mode 100644
index 0000000..192be66
--- /dev/null
+++ b/test_prepare_easycom_eot_int_review.py
@@ -0,0 +1,115 @@
+"""Tests for manuscript-aligned EasyCom EOT/INT review regions."""
+
+from __future__ import annotations
+
+import unittest
+
+from derive_easycom_interaction_events import Clip, Utterance
+from prepare_easycom_eot_int_review import derive_protocol_candidates
+
+
+def utterance(uid: str, participant: int, start: float, end: float, text: str) -> Utterance:
+    return Utterance(
+        uid=uid,
+        session="Session_4",
+        clip_stem="00-00-000",
+        clip_index=0,
+        segment_id=0,
+        participant_id=participant,
+        target_of_speech=("Group",),
+        transcription=text,
+        source_start_frame=round(start * 20) + 1,
+        source_end_frame=round(end * 20),
+        dense_start_frame=round(start * 20),
+        dense_end_frame_exclusive=round(end * 20),
+        dense_start_seconds=start,
+        dense_end_seconds=end,
+        duration_seconds=end - start,
+        starts_at_clip_boundary=start == 0,
+        ends_at_clip_boundary=False,
+        annotation_end_frame_clamped_by=0,
+        is_cross_clip_continuation=False,
+    )
+
+
+def clip(seconds: float = 5.0) -> Clip:
+    return Clip(
+        path="/dataset/Main/Video_Compressed/Session_4/00-00-000.mp4",
+        transcript_path="/dataset/Main/Speech_Transcriptions/Session_4/00-00-000.json",
+        stem="00-00-000",
+        source_start_seconds=0.0,
+        source_end_seconds=seconds,
+        dense_start_frame=0,
+        num_frames=round(seconds * 20),
+        segment_id=0,
+        discontinuity_before_seconds=None,
+    )
+
+
+class EOTINTReviewCandidateTests(unittest.TestCase):
+    def derive(self, rows: list[Utterance]):
+        return derive_protocol_candidates(rows, [clip()], session="Session_4")
+
+    def test_eot_response_is_anchored_by_wearer_onset(self) -> None:
+        rows = [
+            utterance("other", 4, 0.0, 1.0, "Your turn."),
+            utterance("wearer", 2, 1.2, 2.0, "My response."),
+        ]
+        event = next(row for row in self.derive(rows) if row.task == "eot_response")
+        self.assertEqual(event.automatic_protocol_label, "positive")
+        self.assertEqual(event.anchor_type, "other_offset")
+        self.assertEqual(event.behavior_anchor_type, "wearer_onset")
+        self.assertAlmostEqual(event.anchor_dense_seconds, 1.0)
+        self.assertAlmostEqual(event.behavior_seconds or -1, 1.2)
+
+    def test_same_other_resume_is_eot_midturn_hard_negative(self) -> None:
+        rows = [
+            utterance("first", 4, 0.0, 1.0, "First clause."),
+            utterance("resume", 4, 1.3, 2.5, "Same turn continues."),
+        ]
+        event = next(
+            row
+            for row in self.derive(rows)
+            if row.task == "eot_response" and row.anchor_dense_seconds == 1.0
+        )
+        self.assertEqual(event.automatic_protocol_label, "hard_negative")
+        self.assertEqual(event.automatic_hard_negative_type, "eot_midturn_pause")
+        self.assertEqual(event.region_end_reason, "competing_other_onset")
+
+    def test_other_to_other_transfer_is_eot_hard_negative(self) -> None:
+        rows = [
+            utterance("first", 4, 0.0, 1.0, "First speaker."),
+            utterance("next", 3, 1.2, 2.5, "Second speaker."),
+        ]
+        event = next(
+            row
+            for row in self.derive(rows)
+            if row.task == "eot_response" and row.anchor_dense_seconds == 1.0
+        )
+        self.assertEqual(event.automatic_protocol_label, "hard_negative")
+        self.assertEqual(event.automatic_hard_negative_type, "eot_other_to_other")
+
+    def test_int_yield_is_anchored_by_wearer_offset(self) -> None:
+        rows = [
+            utterance("wearer", 2, 0.0, 2.0, "Wearer is speaking."),
+            utterance("other", 4, 1.0, 3.0, "I will take over now."),
+        ]
+        event = next(row for row in self.derive(rows) if row.task == "int_yield")
+        self.assertEqual(event.automatic_protocol_label, "positive")
+        self.assertEqual(event.anchor_type, "other_onset")
+        self.assertEqual(event.behavior_anchor_type, "wearer_offset")
+        self.assertAlmostEqual(event.behavior_seconds or -1, 2.0)
+
+    def test_brief_feedback_is_int_backchannel_hard_negative(self) -> None:
+        rows = [
+            utterance("wearer", 2, 0.0, 3.0, "Wearer keeps the floor."),
+            utterance("other", 4, 1.0, 1.4, "Yeah."),
+        ]
+        event = next(row for row in self.derive(rows) if row.task == "int_yield")
+        self.assertEqual(event.automatic_protocol_label, "hard_negative")
+        self.assertEqual(event.automatic_hard_negative_type, "int_backchannel")
+        self.assertEqual(event.region_end_reason, "competing_other_offset")
+
+
+if __name__ == "__main__":
+    unittest.main()
diff --git a/test_review_floor_events.py b/test_review_floor_events.py
new file mode 100644
index 0000000..eff825a
--- /dev/null
+++ b/test_review_floor_events.py
@@ -0,0 +1,134 @@
+from __future__ import annotations
+
+import json
+from pathlib import Path
+import tempfile
+import unittest
+
+from review_floor_events import (
+    CandidateRepository,
+    ReviewStore,
+    expand_candidate_paths,
+    load_candidates,
+    parse_byte_range,
+)
+
+
+class FloorEventReviewTests(unittest.TestCase):
+    def _fixture(self, root: Path) -> tuple[Path, Path]:
+        dataset = root / "dataset"
+        video_dir = dataset / "Main" / "Video_Compressed" / "Session_4"
+        transcript_dir = dataset / "Main" / "Speech_Transcriptions" / "Session_4"
+        video_dir.mkdir(parents=True)
+        transcript_dir.mkdir(parents=True)
+        (video_dir / "00-00-000.mp4").write_bytes(b"mock-video")
+        (transcript_dir / "00-00-000.json").write_text(
+            json.dumps(
+                [
+                    {
+                        "Start_Frame": 1,
+                        "End_Frame": 20,
+                        "Participant_ID": 4,
+                        "Transcription": "Are you coming?",
+                        "Target_of_Speech": [2],
+                    },
+                    {
+                        "Start_Frame": 25,
+                        "End_Frame": 40,
+                        "Participant_ID": 2,
+                        "Transcription": "Yes.",
+                        "Target_of_Speech": [4],
+                    },
+                ]
+            ),
+            encoding="utf-8",
+        )
+        events = root / "candidates.jsonl"
+        events.write_text(
+            json.dumps(
+                {
+                    "uid": "Session_4/00-00-000/0001",
+                    "session": "Session_4",
+                    "split": "train",
+                    "event_type": "ordinary_switch",
+                    "confidence": "timing",
+                    "participant_role": "wearer",
+                    "clip_stem": "00-00-000",
+                    "source_start_frame": 25,
+                    "dense_start_seconds": 1.2,
+                }
+            )
+            + "\n",
+            encoding="utf-8",
+        )
+        return dataset, events
+
+    def test_candidate_detail_resolves_media_and_transcript(self) -> None:
+        with tempfile.TemporaryDirectory() as temporary:
+            root = Path(temporary)
+            dataset, events = self._fixture(root)
+            candidates = load_candidates([events])
+            repository = CandidateRepository(
+                candidates,
+                dataset,
+                context_before_seconds=3.0,
+                context_after_seconds=3.0,
+            )
+            detail = repository.detail(candidates[0])
+            self.assertTrue(detail["media_available"])
+            self.assertEqual(detail["event_local_seconds"], 1.2)
+            self.assertEqual(len(detail["transcript"]), 2)
+            self.assertTrue(detail["transcript"][1]["is_anchor"])
+
+    def test_review_store_writes_resumable_jsonl_and_csv(self) -> None:
+        with tempfile.TemporaryDirectory() as temporary:
+            root = Path(temporary)
+            _, events = self._fixture(root)
+            candidates = load_candidates([events])
+            output = root / "reviews" / "reviews.jsonl"
+            store = ReviewStore(output, candidates)
+            review = {
+                "protocol_disposition": "positive",
+                "hard_negative_type": "not_applicable",
+                "validity": "valid",
+                "onset_function": "backchannel",
+                "context": "addressed_wearer",
+                "offset_outcome": "not_applicable",
+                "anchor_adjustment_bins": 0,
+                "behavior_adjustment_bins": 0,
+                "region_end_adjustment_bins": None,
+                "confidence": "high",
+                "reviewer": "r1",
+                "notes": "clear acknowledgement",
+            }
+            store.save(candidates[0].candidate_id, review)
+            self.assertTrue(output.is_file())
+            self.assertTrue(output.with_suffix(".csv").is_file())
+            resumed = ReviewStore(output, candidates)
+            self.assertEqual(
+                resumed.reviews[candidates[0].candidate_id]["review"]["onset_function"],
+                "backchannel",
+            )
+
+    def test_directory_expansion_excludes_output(self) -> None:
+        with tempfile.TemporaryDirectory() as temporary:
+            root = Path(temporary)
+            candidate = root / "Session_4.events.jsonl"
+            output = root / "reviews.jsonl"
+            candidate.write_text("{}\n", encoding="utf-8")
+            output.write_text("{}\n", encoding="utf-8")
+            self.assertEqual(
+                expand_candidate_paths([root], output_path=output),
+                [candidate.resolve()],
+            )
+
+    def test_byte_ranges(self) -> None:
+        self.assertEqual(parse_byte_range("bytes=2-5", 10), (2, 5))
+        self.assertEqual(parse_byte_range("bytes=7-", 10), (7, 9))
+        self.assertEqual(parse_byte_range("bytes=-3", 10), (7, 9))
+        with self.assertRaises(ValueError):
+            parse_byte_range("bytes=20-30", 10)
+
+
+if __name__ == "__main__":
+    unittest.main()