WFGY/ProblemMap/examples/example_02_self_reflection.md

Example 02 — Self-Reflection Trace and Triage (No.1 Hallucination & No.2 Query Parsing)

Evaluation disclaimer (self reflection)
This example shows how a model can reflect on its own answers under a specific prompt and setup.
The reflections and scores are illustrative and do not prove that the model is generally self aware or reliable.

---

Goal
Turn raw traces into a decision report that tells you where the failure started: retrieval or generation.
No SDKs, no extra dependencies. Works with the trace produced in Example 01.

Problem Map link
Targets No.1 Hallucination & Chunk Drift and No.2 Query Parsing / Intent Split.
Second-order benefits for No.4 (Tail Noise) once you cut low-value evidence.

Outcome

• A per-question triage label: retrieval_drift, generation_drift, or ok
• A short why field pointing to the exact symptom
• A machine-readable JSONL report you can diff over time

---

1) Inputs

• runs/trace.jsonl from Example 01 (each line: {"q": "...", "chunks":[{"id":"..."},...], "answer":"...", "ok": true/false })
• data/chunks.json (chunk id → text)

If you skipped Example 01, create the same two files now. Keep chunk ids stable.

---

2) Reflection rubric (simple and reproducible)

We use deterministic checks, not another LLM, to avoid circular reasoning.

Signals

• Template compliance: either contains not in context or a citations: line
• Citation overlap: ids mentioned in the answer must be a subset of retrieved ids
• Evidence containment: ≥ 1 non-trivial phrase (≥ 5 chars, letters/digits) from the answer appears verbatim in evidence
• Question-evidence alignment: ≥ 1 query token appears in evidence; if not, likely retrieval drift

Labels

• generation_drift: template violated or citation overlap = 0 or evidence containment = 0 while evidence contains relevant terms
• retrieval_drift: evidence lacks query terms (poor alignment), even if the answer looks “reasonable”
• ok: citations present and evidence containment > 0 and some query terms found in evidence
• refusal_ok: answer is exactly not in context and evidence truly lacks query terms
• refusal_suspect: not in context but evidence actually contains query terms (over-refusal)

---

3) Path A — Python reflection (single file)

Create reflect.py.

# reflect.py -- classify traces as retrieval_drift / generation_drift / ok
import json, re, sys
from typing import Dict, List

PHRASE_RE = re.compile(r"[A-Za-z0-9][A-Za-z0-9\-\s]{4,}")  # >=5 chars

def load_chunks(path: str) -> Dict[str, str]:
    items = json.load(open(path, encoding="utf8"))
    return {c["id"]: c["text"] for c in items}

def extract_citation_ids(ans: str) -> List[str]:
    # naive parser for: citations: [p1#1, p2#3]
    m = re.search(r"citations\s*:\s*\[([^\]]*)\]", ans, re.IGNORECASE)
    if not m: return []
    raw = m.group(1)
    return [t.strip() for t in re.split(r"[,\s]+", raw) if t.strip()]

def phrases(s: str) -> List[str]:
    return [p.strip() for p in PHRASE_RE.findall(s)]

def any_phrase_in_evidence(ans: str, ev: str) -> bool:
    ev_low = ev.lower()
    for p in phrases(ans):
        if len(p) >= 5 and p.lower() in ev_low:
            return True
    return False

def any_query_token_in_evidence(q: str, ev: str) -> bool:
    qtok = {w for w in re.split(r"\W+", q.lower()) if len(w) >= 3}
    if not qtok: return False
    evtok = set(re.split(r"\W+", ev.lower()))
    return len(qtok & evtok) > 0

def reflect_one(rec: Dict, chunk_map: Dict[str, str]) -> Dict:
    q, ans = rec["q"], rec.get("answer","")
    ids = [c["id"] for c in rec.get("chunks", []) if "id" in c]
    ev = "\n\n".join(chunk_map.get(i, "") for i in ids)

    tmpl_ok = ("not in context" in ans.lower()) or ("citations:" in ans.lower())
    cit_ids = extract_citation_ids(ans)
    cit_overlap = all(cid in ids for cid in cit_ids) if cit_ids else False
    ev_contains_answer = any_phrase_in_evidence(ans, ev)
    q_align = any_query_token_in_evidence(q, ev)

    if "not in context" in ans.lower():
        if q_align:
            label, why = "refusal_suspect", "evidence contains query terms but model refused"
        else:
            label, why = "refusal_ok", "no query terms found in evidence; refusal acceptable"
    else:
        if not tmpl_ok or (cit_ids and not cit_overlap):
            label, why = "generation_drift", "template/citations violated"
        elif not ev_contains_answer and q_align:
            label, why = "generation_drift", "answer text not grounded in evidence"
        elif not q_align:
            label, why = "retrieval_drift", "evidence lacks query terms"
        else:
            label, why = "ok", "citations present and answer grounded"

    return {
        "q": q, "label": label, "why": why,
        "chunks": ids, "citations_in_answer": cit_ids
    }

if __name__ == "__main__":
    if len(sys.argv) < 3:
        print("usage: python reflect.py runs/trace.jsonl data/chunks.json")
        sys.exit(1)
    trace_path, chunk_path = sys.argv[1], sys.argv[2]
    chunks = load_chunks(chunk_path)
    out = []
    with open(trace_path, encoding="utf8") as f:
        for line in f:
            if not line.strip(): continue
            rec = json.loads(line)
            out.append(reflect_one(rec, chunks))
    for r in out:
        print(json.dumps(r, ensure_ascii=False))

Run:

python reflect.py runs/trace.jsonl data/chunks.json > runs/report.jsonl

Pass criteria

• For “What is X?” you should see label: ok
• For “What is Z?” you should see label: refusal_ok
• If you deliberately break the template or citations, you should get generation_drift
• If you swap chunks to unrelated text, you should get retrieval_drift

---

4) Path B — Node reflection (single file, no deps)

Create reflect.mjs.

// reflect.mjs -- classify traces as retrieval_drift / generation_drift / ok
import fs from "node:fs";

function loadChunks(path) {
  const arr = JSON.parse(fs.readFileSync(path, "utf8"));
  const m = {};
  for (const c of arr) m[c.id] = c.text;
  return m;
}

function extractCitationIds(ans) {
  const m = ans.match(/citations\s*:\s*\[([^\]]*)\]/i);
  if (!m) return [];
  return m[1].split(/[, \t\r\n]+/).map(s => s.trim()).filter(Boolean);
}

function phrases(s) {
  return (s.match(/[A-Za-z0-9][A-Za-z0-9-\s]{4,}/g) || []).map(x => x.trim());
}

function anyPhraseInEvidence(ans, ev) {
  const evLow = ev.toLowerCase();
  return phrases(ans).some(p => p.length >= 5 && evLow.includes(p.toLowerCase()));
}

function anyQueryTokenInEvidence(q, ev) {
  const qtok = new Set(q.toLowerCase().split(/\W+/).filter(w => w.length >= 3));
  if (!qtok.size) return false;
  const evtok = new Set(ev.toLowerCase().split(/\W+/));
  for (const w of qtok) if (evtok.has(w)) return true;
  return false;
}

function reflectOne(rec, chunkMap) {
  const q = rec.q, ans = rec.answer || "";
  const ids = (rec.chunks || []).map(c => c.id).filter(Boolean);
  const ev = ids.map(i => chunkMap[i] || "").join("\n\n");

  const tmplOk = ans.toLowerCase().includes("not in context") || /citations\s*:/i.test(ans);
  const citIds = extractCitationIds(ans);
  const citOverlap = citIds.length ? citIds.every(id => ids.includes(id)) : false;
  const evContainsAnswer = anyPhraseInEvidence(ans, ev);
  const qAlign = anyQueryTokenInEvidence(q, ev);

  let label, why;
  if (ans.toLowerCase().includes("not in context")) {
    if (qAlign) { label = "refusal_suspect"; why = "evidence contains query terms but model refused"; }
    else        { label = "refusal_ok";      why = "no query terms found in evidence; refusal acceptable"; }
  } else {
    if (!tmplOk || (citIds.length && !citOverlap)) {
      label = "generation_drift"; why = "template/citations violated";
    } else if (!evContainsAnswer && qAlign) {
      label = "generation_drift"; why = "answer text not grounded in evidence";
    } else if (!qAlign) {
      label = "retrieval_drift";  why = "evidence lacks query terms";
    } else {
      label = "ok";               why = "citations present and answer grounded";
    }
  }
  return { q, label, why, chunks: ids, citations_in_answer: citIds };
}

if (process.argv.length < 4) {
  console.error("usage: node reflect.mjs runs/trace.jsonl data/chunks.json");
  process.exit(1);
}
const [tracePath, chunkPath] = process.argv.slice(2);
const chunkMap = loadChunks(chunkPath);

const lines = fs.readFileSync(tracePath, "utf8").split(/\r?\n/).filter(Boolean);
for (const line of lines) {
  const rec = JSON.parse(line);
  console.log(JSON.stringify(reflectOne(rec, chunkMap)));
}

Run:

node reflect.mjs runs/trace.jsonl data/chunks.json > runs/report.jsonl

Pass criteria are the same as Python.

---

5) Read the report as a triage table

Turn runs/report.jsonl into a quick view:

echo -e "| q | label | why |\n|---|---|---|" > runs/report.md
cat runs/report.jsonl | python - <<'PY'
import sys, json
for line in sys.stdin:
    r = json.loads(line)
    q = (r["q"][:60] + "…") if len(r["q"])>60 else r["q"]
    print(f"| {q} | **{r['label']}** | {r['why']} |")
PY >> runs/report.md

You’ll get a Markdown table you can paste into an issue or PR.

---

6) What to do for each label

• retrieval_drift Move to Example 03 (Intersection + Rerank); reduce chunk size so entity + constraints live together; drop tail after the score knee.

• generation_drift Keep the evidence-only template at the end of the system prompt; set temperature to 0 for evaluation; if needed, require exact citations: [id,...].

• refusal_ok This is good. It means the model did not fabricate beyond evidence.

• refusal_suspect Increase top-k before rerank. If query is truly absent from your corpus, consider a fallback answer or a different data source.

• ok Baseline reached. Move to Eval examples to measure precision/recall and stability.

---

7) Optional: LLM-assisted reflection (still deterministic output)

If you prefer a short natural-language summary per case, you can add a second pass that prompts an LLM to summarize the deterministic checks into 1–2 sentences. Keep the JSON decision from the scripts above as source-of-truth, and store the LLM summary as an auxiliary field.

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8) Common mistakes

• Mixing traces from different chunking pipelines → chunk ids do not resolve. Keep a single chunker per index build.
• Relying only on citation strings → models can fabricate ids. Always check overlap with retrieved ids.
• Treating refusal as a failure → under constrained evidence, refusal is the correct output.

---

9) Next steps

• Run Example 03 to harden retrieval
• Use Eval docs to compare before/after on precision, refusal, and citation overlap
• Wire this reflection into CI: fail a build if generation_drift exceeds your threshold

---

🔗 Quick-Start Downloads (60 sec)

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TXT OS (plain-text OS)	TXTOS.txt	1️⃣ Download · 2️⃣ Paste into any LLM chat · 3️⃣ Type “hello world” — OS boots instantly

---

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