$ grep -n "export async function lastUndoableRun" -A14 src/execute.ts

[tool output omitted]

{"items":[{"content":"Find why Undo last did nothing","status":"in_progress"},{"content":"Fix it","status":"pending"},{"content":"Verify in the app, commit and push","status":"pending"}],"scope":"cont...

[tool output omitted]

$ python3 - <<'EOF'
import json,os,collections
p=os.path.expanduser('~/Downloads/<file>')
es=[json.loads(l) for l in open(p) if l.strip()]
print('entries',len(es))
# counts only, no file names
runs=collections.OrderedDict()
for e in es:
    r=e.get('run'); op=e.get('op')
    runs.setdefault(r,collections.Counter())[op]+=1
for r,c in list(runs.items())[-6:]: print(r, dict(c))
print('ops', collections.Counter(e.get('op') for e in es))
print('keys of last', sorted(es[-1].keys()))
EOF
grep -ciE "undo|put back" ~/Library/Logs/dropzone-zero/watch.log; grep -iE "error|fail" ~/Library/Logs/dropzone-zero/watch.log | tail -5 | cut -c1-120 | sed -E 's#/Users/[^ ]+#<path>#g'

[tool output omitted]

$ grep -inE "undo|put back" ~/Library/Logs/dropzone-zero/watch.log | tail -8 | sed -E 's/: .*\.(pdf|jpg|png|zip|dmg|csv|txt)/: <file>/g' | cut -c1-140; ls -la ~/Library/Logs/dropzone-zero/watch.log; tail -3 ~/Library/Logs/dropzone-zero/watch.log | cut -c1-60

[tool output omitted]

$ grep -n '"undo"\|#undo\|/undo' app/ui/zee.js; grep -n 'undo' app/ui/zee.js | head; grep -n "export async function undoRun" -A30 src/execute.ts | head -45

[tool output omitted]

$ sed -n 340,360p app/ui/zee.js; grep -n "async function beginUndo" -A8 src/execute.ts; grep -n "undo-begin\|undo-end" src/*.ts | head

[tool output omitted]

$ grep -n "confirm(\|alert(\|prompt(" app/ui/*.js; grep -n "footer button\|button.primary\|\.yes" app/ui/style.css | head

[tool output omitted]

$ sed -n 250,280p app/ui/style.css

[tool output omitted]

$ python3 - <<'EOF'
p='app/ui/zee.js'; s=open(p).read()
old='''$("undo").addEventListener("click", async () => {
  if (!confirm("Put back everything the last run moved?")) return;
  try {
    render(await call("POST", "/undo"));
  } catch (error) {
    showError(error);
  }
});'''
assert old in s
s=s.replace(old,'''// Undo asks first, inside the bubble: the first click turns the button into
// "Put back?", and a second click within a few seconds does it. (window.confirm()
// cannot be used: Zee's webview on macOS shows no JavaScript dialogs, so it
// returned false at once and Undo silently did nothing.)
const undoButton = $("undo");
let undoArmed = null;
function disarmUndo() {
  clearTimeout(undoArmed);
  undoArmed = null;
  undoButton.textContent = "Undo last";
  undoButton.classList.remove("armed");
}
undoButton.addEventListener("click", async () => {
  if (!undoArmed) {
    undoButton.textContent = "Put back?";
    undoButton.classList.add("armed");
    undoArmed = setTimeout(disarmUndo, 4_000);
    return;
  }
  disarmUndo();
  try {
    render(await call("POST", "/undo"));
  } catch (error) {
    showError(error);
  }
});''')
open(p,'w').write(s)
p='app/ui/style.css'; s=open(p).read()
s=s.replace('''button:disabled {''','''footer button.armed {
  background: var(--warn);
  border-color: var(--warn);
  color: #fff;
}
button:disabled {''',1)
open(p,'w').write(s)
EOF
node --check app/ui/zee.js && echo ok

[tool output omitted]

$ pnpm app:build > $TMPDIR/zee-build.log 2>&1; tail -2 $TMPDIR/zee-build.log

[tool output omitted]

$ python3 - <<'EOF'
p='scripts/record-zee.ts'; s=open(p).read()
a=s.index('  // End on the question.')
b=s.index('} catch (error) {', a)
s=s[:a]+'''  await sleep(3_000);
  log("leave it");
  await clickText("Leave it");
  await sleep(2_500);

  // 3. Changed your mind about the receipt? Undo asks once in the bubble, then puts it back.
  log("undo");
  await click("#undo");
  await sleep(1_500);
  await click("#undo");
  await waitFor((s) => s.recent.length === 0, 15_000);
  log("put back");
  await sleep(3_000);
'''+s[b:]
s=s.replace('''const click = (selector: string) => run(`document.querySelector(${JSON.stringify(selector)})?.click()`);''','''const click = (selector: string) => run(`document.querySelector(${JSON.stringify(selector)})?.click()`);
const clickText = (text: string) =>
  run(`[...document.querySelectorAll("button")].find((b) => b.textContent.trim() === ${JSON.stringify(text)})?.click()`);''')
s=s.replace("// Records docs/media/zee.gif: Zee, the real UI against a real daemon, filing a new\n// download in a synthetic folder and then asking about an installer.","// Records docs/media/zee.gif: Zee, the real UI against a real daemon, filing a new\n// download in a synthetic folder, asking about an installer, and undoing the filing.")
open(p,'w').write(s)
EOF
grep -n "recent.length === 0\|leave it\|clickText" scripts/record-zee.ts | head; grep -n "recent" src/daemon.ts | sed -n 1,6p

[tool output omitted]

$ python3 - <<'EOF'
p='scripts/record-zee.ts'; s=open(p).read()
s=s.replace('type ZeeState = { mood: string; pending: { id: string }[]; recent: unknown[] };','type ZeeState = { mood: string; message: string; pending: { id: string }[]; recent: unknown[] };')
s=s.replace('await waitFor((s) => s.recent.length === 0, 15_000);','await waitFor((s) => s.message.startsWith("Put back"), 15_000);')
open(p,'w').write(s)
EOF
pkill -f "remote-debugging-port=9333"; perl -e 'alarm 200; exec @ARGV' node --import tsx scripts/record-zee.ts 2>&1 | grep -v "^\s*$" | tail -9; ls demo/zee/Downloads

[tool output omitted]

$ cd <repo>/demo/zee/Downloads && find . -type f | sort; python3 -c "
import json
for l in open('.dropzone/journal.jsonl'):
  e=json.loads(l); print({k:v for k,v in e.items() if k in ('op','run','from','to','restored','failed','error')})"

[tool output omitted]

$ cd <repo> && sed -n 60,112p src/watch.ts; grep -n "export async function readJournal\|at:" src/journal.ts | head

[tool output omitted]

$ sed -n 10,25p src/journal.ts

[tool output omitted]

$ sed -n 43,55p src/journal.ts; sed -n 1,8p src/watch.ts; grep -n "isNewFile\|baseline" test/watch.test.ts | head

[tool output omitted]

$ python3 - <<'EOF'
p='src/watch.ts'; s=open(p).read()
s=s.replace('import { executePlan, loadPlan, movableItems, savePlan, type RunResult } from "./execute.js";','import { executePlan, loadPlan, movableItems, savePlan, type RunResult } from "./execute.js";\nimport { readJournal } from "./journal.js";')
s=s.replace('''/** One pass: scan, plan what has settled, save the plan, and with --auto run what the guard allows. */''','''/**
 * Files an undo put back, as name and hash. They are where the person wants them,
 * so --auto must not take them for new downloads and file them again (which made
 * Undo look like it did nothing). The hash pins the exact file: a new download
 * that reuses the name is still new.
 */
async function putBackByUndo(inbox: string): Promise<Set<string>> {
  const entries = await readJournal(inbox);
  const hashes = new Map<string, string>();
  for (const e of entries) if (e.op === "move") hashes.set(`${e.run}\\n${e.to}`, e.sha256);
  const keys = new Set<string>();
  for (const e of entries) {
    if (e.op !== "restore" || e.state !== "done") continue;
    const sha = hashes.get(`${e.run}\\n${e.from}`);
    if (sha) keys.add(`${e.to}\\n${sha}`);
  }
  return keys;
}

/** One pass: scan, plan what has settled, save the plan, and with --auto run what the guard allows. */''')
old='''  const isNewFile = (f: { name: string; sha256: string }) => !state.baseline!.has(`${f.name}\\n${f.sha256}`);
  const leaveExisting = options.auto && !options.includeExisting;''' …[truncated]

[tool output omitted]

$ sed -n 1,46p test/watch.test.ts; sed -n 121,134p test/watch.test.ts

[tool output omitted]

$ python3 - <<'EOF'
p='test/watch.test.ts'; s=open(p).read()
s=s.replace('import { approveItems, loadPlan } from "../src/execute.js";','import { approveItems, lastUndoableRun, loadPlan, undoRun } from "../src/execute.js";')
anchor='''  it("a cluttered folder no longer holds up a new download", async () => {'''
s=s.replace(anchor,'''  it("does not file a download again after an undo put it back", async () => {
    const state = newWatchState();
    await watchCycle(state, options({ auto: true }));
    await arrive("new.pdf");
    const filed = await watchCycle(state, options({ auto: true }));
    assert.equal(filed.run?.moved, 1);

    await undoRun(inbox, (await lastUndoableRun(inbox))!);
    assert.ok(existsSync(join(inbox, "new.pdf")), "undo put it back");
    const after = await watchCycle(state, options({ auto: true }));
    assert.equal(after.run, undefined);
    assert.ok(existsSync(join(inbox, "new.pdf")), "and it stays put");

    // A different file that reuses the name is a new download again.
    await arrive("new.pdf", "a different receipt");
    const next = await watchCycle(state, options({ auto: true }));
    assert.equal(next.run?.moved, 1);
  });

'''+anchor,1)
open(p,'w').write(s)
EOF
node --import tsx --test test/watch.test.ts 2>&1 | grep -E "^ℹ (pass|fail)|✖|not ok" | head

[tool output omitted]

$ pnpm -s test 2>&1 | grep -E "^ℹ (tests|pass|fail)|✖"; pkill -f "remote-debugging-port=9333"; perl -e 'alarm 200; exec @ARGV' node --import tsx scripts/record-zee.ts 2>&1 | grep -v "^\s*$" | tail -3; sleep 8; echo "--- folder after scene:"; find demo/zee/Downloads -type f -not -path "*/.dropzone/*" | sort

[tool output omitted]

$ S=<scratch> d=$(ffprobe -v error -show_entries format=duration -of csv=p=0 docs/media/zee.gif); echo $d; ffmpeg -y -v error -ss $(python3 -c "print($d-2.6)") -i docs/media/zee.gif -frames:v 1 $S/u1.png; ffmpeg -y -v error -sseof -0.1 -i docs/media/zee.gif -frames:v 1 $S/u2.png; ffmpeg -y -v error -i $S/u1.png -i $S/u2.png -filter_complex hstack=2 $S/ustrip.png

[tool output omitted]

<scratch>

[tool output omitted]

$ osascript -e 'tell application id "dev.dropzone-zero.zee" to quit' 2>&1; for i in $(seq 1 20); do pgrep -f "Zee.app/Contents/MacOS/zee" >/dev/null || break; sleep 0.5; done; open <repo>/app/src-tauri/target/release/bundle/macos/Zee.app && sleep 6 && ps -Ao pid,lstart,command | grep -E "Zee.app/Contents/MacOS/zee|cli.ts daemon" | grep -v grep | cut -c1-110; ls -la <repo>/app/src-tauri/target/release/bundle/macos/Zee.app/Contents/MacOS/zee

[tool output omitted]

$ python3 - <<'EOF'
p='docs/dev-post.md'; s=open(p).read()
old="it reads the receipt, files it (that open mouth is it eating the page), and then waves and asks before touching an installer."
assert old in s
s=s.replace(old,"it reads the receipt, files it (that open mouth is it eating the page), waves and asks before touching an installer, and then puts the receipt back with **Undo last**.")
open(p,'w').write(s)
p='docs/HANDOFF.md'; s=open(p).read()
s=s.replace('''- **`pnpm media:zee`:** clicking an answer in headless Chrome stalls its renderer,
  so the GIF ends on Zee's question. Cause not found; not seen in the app.
''','')
open(p,'w').write(s)
p='scripts/record-zee.ts'; s=open(p).read()
open(p,'w').write(s)
EOF
grep -n "stalls\|headless Chrome stalls" scripts/record-zee.ts README.md docs/*.md | head; grep -n "Undo last" README.md | head -3

[tool output omitted]

$ python3 - <<'EOF'
p='README.md'; s=open(p).read()
old="and **Undo last**, **Pause**, and **Hide** are one click away."
s=s.replace(old,"and **Undo last**, **Pause**, and **Hide** are one click away. **Undo last** asks once in the button itself (\"Put back?\"; click again within a few seconds) and then puts back everything the last run moved; a file put back this way is never filed again on its own.")
open(p,'w').write(s)
EOF
git add README.md app/ui/zee.js app/ui/style.css src/watch.ts test/watch.test.ts scripts/record-zee.ts docs/media/zee.gif docs/dev-post.md docs/HANDOFF.md && git status --short && git commit -q -F - <<'EOF'
fix: make Zee's Undo last work, and keep undone files where they are

Two bugs made Undo last look like it did nothing:
- The button asked with window.confirm(), which Zee's macOS webview does
  not show, so it returned false at once and nothing was undone. The
  button now asks in place: the first click turns it into "Put back?",
  and a second click within four seconds runs the undo.
- When an undo did put a file back, dz watch --auto (and so the daemon
  behind Zee) took it for a new download and filed it again seconds
  later. Files put back by an undo, matched by name and hash from the
  journal, now count as already there; a new file that reuses the name
  is still filed.

The confirm() call was also what stalled headless Chrome in
pnpm media:zee, so the Zee GIF now shows the whole story, including
Undo last putting the receipt back.

Co-Authored …[truncated]

[tool output omitted]

{"recap":"Undo last가 안 되던 버그 두 개를 고쳐 b22e1c1로 푸시했고, 새 Zee를 다시 실행했습니다. 테스트 109개가 통과했고 녹화로 동작도 확인했습니다. 실제 앱에서는 직접 눌러 보셔야 합니다. / Fixed the two Undo last bugs (b22e1c1) and relaunched Zee. 109 tests pass ...

[tool output omitted]

{
  "query": "select:WebSearch",
  "max_results": 1
}

[tool output omitted]

{
  "query": "Tinker Thinking Machines free credits new accounts pricing",
  "mode": "standard"
}

[tool output omitted]

{
  "query": "Backboard.io pricing free tier LLM credits",
  "mode": "standard"
}

[tool output omitted]

{"items":[{"content":"Find zero-cost Backboard models with JSON output","status":"in_progress"},{"content":"Run dz eval on free Backboard models","status":"pending"},{"content":"Check Tinker access wi...

[tool output omitted]

$ set -a && . ./.env && set +a && curl -s -H "X-API-Key: $BACKBOARD_API_KEY" "https://app.backboard.io/api/models?limit=5000" > $TMPDIR/bb-models.json; python3 -c "
import json,sys
d=json.load(open(sys.argv[1]))
ms=d.get('models',d)
print(len(ms)); print(list(ms[0].keys()))
free=[m for m in ms if (m.get('input_cost_per_1m_tokens') in (0,0.0)) and (m.get('output_cost_per_1m_tokens') in (0,0.0))]
print('free',len(free))
for m in free[:80]: print(m.get('provider'), m['name'], {k:v for k,v in m.items() if 'json' in k.lower() or 'free' in k.lower()})
" $TMPDIR/bb-models.json

[tool output omitted]

$ set -a && . ./.env && set +a && for off in 0 5000 10000 15000; do curl -s -H "X-API-Key: $BACKBOARD_API_KEY" "https://app.backboard.io/api/models?limit=5000&skip=$off&offset=$off" > $TMPDIR/bb-$off.json; done; python3 -c "
import json,sys,collections
ms=[]
for f in sys.argv[1:]:
  d=json.load(open(f)); ms+= d.get('models',[])
print('total',len(ms),'unique',len({(m['provider'],m['name']) for m in ms}))
print(collections.Counter(json.dumps(m.get('billing'),sort_keys=True)[:80] for m in ms).most_common(8))
c=[m for m in ms if ':free' in m['name'] or 'free' in json.dumps(m.get('billing')).lower() or (m.get('input_cost_per_1m_tokens') or 1)==0]
for m in c[:60]: print(m['provider'],m['name'],m.get('supports_json_output'),m.get('input_cost_per_1m_tokens'),m.get('billing'))
" $TMPDIR/bb-*.json

[tool output omitted]

$ set -a && . ./.env && set +a && curl -s -H "X-API-Key: $BACKBOARD_API_KEY" "https://app.backboard.io/api/models?provider=openrouter&limit=5000" > $TMPDIR/bb-or.json; python3 -c "
import json,sys
ms=json.load(open(sys.argv[1]))['models']
print('openrouter',len(ms))
for m in ms:
  if (m.get('input_cost_per_1m_tokens') or 0)==0 and (m.get('output_cost_per_1m_tokens') or 0)==0: print(m['name'],'json=',m.get('supports_json_output'),'ctx=',m.get('context_limit'))
" $TMPDIR/bb-or.json

[tool output omitted]

$ grep -n "evaluate\|--limit\|--model\|--provider" src/cli.ts | head -30

[tool output omitted]

$ sed -n 565,640p src/cli.ts

[tool output omitted]

<repo>/src/backboard.ts

[tool output omitted]

<repo>/src/backboard.ts

[tool output omitted]

<repo>/src/backboard.ts

[tool output omitted]

$ pnpm -s typecheck && for m in openrouter:dots-studio/dots-3-note-preview:free openrouter:stealth/space-bunny-alpha; do pnpm -s dz eval --provider backboard --model "$m" 2>&1 | grep -v "^\s*$" | head -40; echo ---; done

[tool output omitted]

$ cd <repo>/ml && ls; set -a && . ../.env && set +a && timeout 60 uv run python -c "
import tinker
sc=tinker.ServiceClient()
caps=sc.get_server_capabilities()
for m in caps.supported_models: print(m.model_name)
" 2>&1 | tail -40

[tool output omitted]

$ set -a && . ../.env && set +a && timeout 120 uv run python -c "
import tinker
from tinker import types
sc=tinker.ServiceClient()
tc=sc.create_lora_training_client(base_model='Qwen/Qwen3.5-4B', rank=8)
print('training client ok')
" 2>&1 | grep -v '^\s*$' | tail -8; echo exit=$?

[tool output omitted]

$ cd <repo> && grep -n "^export\|function build\|prompt" src/classify.ts | head -40; cd ml && uv pip index versions tinker 2>/dev/null | head -2 || true; curl -s https://pypi.org/pypi/tinker/json | python3 -c "import json,sys;d=json.load(sys.stdin);print(d['info']['version']); import datetime; print(d['releases'][d['info']['version']][0]['upload_time'])"

[tool output omitted]

$ cd <repo> && sed -n 25,145p src/classify.ts; head -c 600 eval/cases.jsonl

[tool output omitted]

$ cd <repo>/ml && uv add "tinker==0.34.0" 2>&1 | tail -2; d=$(uv run python -c "import tinker,os;print(os.path.dirname(tinker.__file__))"); grep -rl -i "openai" $d | head; grep -rn "def create_sampling_client\|def save_weights_for_sampler\|def forward_backward\b\|def optim_step\|def sample\b\|def get_tokenizer\|def save_weights_and_get_sampling_client" $d | head -20

[tool output omitted]

$ f=<repo>/ml/.venv/lib/python3.12/site-packages/tinker/lib/public_interfaces; sed -n 256,300p $f/training_client.py; sed -n 453,500p $f/sampling_client.py; d=$(dirname $(dirname $f)); grep -n "class Datum\|class ModelInput\|class SamplingParams\|class AdamParams\|class TensorData" -r $d/types | head; cat $d/types/datum.py | head -60

[tool output omitted]

<scratch>

[tool output omitted]

$ cd <repo> && sed -n 255,300p src/classify.ts; cat .gitignore; cat ml/pyproject.toml; ls scripts eval

[tool output omitted]

<repo>/scripts/export-sft.ts

[tool output omitted]

<repo>/ml/finetune.py

[tool output omitted]

<repo>/ml/finetune.py

[tool output omitted]

$ mkdir -p ml/data && pnpm -s tsx scripts/export-sft.ts > ml/data/sft.jsonl && wc -l ml/data/sft.jsonl && head -1 ml/data/sft.jsonl | python3 -c "import json,sys;d=json.loads(sys.stdin.read());print(d['reply'])"; cat $TMPDIR/../tasks/b3omv3465.output 2>/dev/null; cat <scratch>

[tool output omitted]

$ node --import tsx scripts/export-sft.ts > ml/data/sft.jsonl && wc -l ml/data/sft.jsonl && head -1 ml/data/sft.jsonl | python3 -c "import json,sys;d=json.loads(sys.stdin.read());print(d['reply'])"; cat <scratch>

[tool output omitted]

$ cd <repo>/ml && set -a && . ../.env && set +a && uv run python finetune.py data/sft.jsonl --no-train --out ../eval/replies/qwen3.5-4b-base.jsonl 2>&1 | grep -v "outdated\|^\s*$" && uv run python finetune.py data/sft.jsonl --out ../eval/replies/qwen3.5-4b-lora.jsonl 2>&1 | grep -v "outdated\|^\s*$"

[tool output omitted]

<repo>/src/eval.ts

[tool output omitted]

$ grep -n "provider:\|model: {\|split: {\|replies" src/cli.ts | head; sed -n 770,780p src/cli.ts

[tool output omitted]

$ python3 - <<'EOF'
import re
p='src/cli.ts'; s=open(p).read()
s=s.replace('dz eval [--split test|train|all] [--provider ollama|backboard] [--model name] [--json]',
 'dz eval [--split test|train|all] [--provider ollama|backboard|replay] [--model name] [--replies file] [--json]')
s=s.replace('async function evaluate(split: string, json: boolean, provider: string, model: string | undefined): Promise<void> {',
 'async function evaluate(\n  split: string,\n  json: boolean,\n  provider: string,\n  model: string | undefined,\n  replies: string | undefined,\n): Promise<void> {')
s=s.replace('  const { loadCases, runEval } = await import("./eval.js");','  const { loadCases, runEval, summarizeResults, ReplayClient } = await import("./eval.js");')
s=s.replace('''  } else {
    throw new Error("--provider must be ollama or backboard.");
  }''','''  } else if (provider === "replay") {
    // Replies recorded by ml/finetune.py from a model on Tinker.
    if (!replies) throw new Error("Pass --replies <file>, written by ml/finetune.py.");
    const replay = await ReplayClient.load(resolve(replies));
    client = replay;
    label = `tinker:${basename(replies, ".jsonl")}`;
    finish = async () => ({ latencySource: "recorded by ml/finetune.py, one Tinker request at a time" });
    restoreLatency = (results) => results.map((r) => ({ ...r, ms: replay.recordedMs(r.id) ?? r.ms }));
  } else {
    throw new Error("--provider must be ollama, backboard, or replay.");
  }''')
s=s.replace('''  let fini …[truncated]

[tool output omitted]

$ sed -i '' 's|^import { dirname, extname, join, relative, resolve } from "node:path";|import { basename, dirname, extname, join, relative, resolve } from "node:path";|' src/cli.ts && sed -i '' 's|^import { classifyFile } from "./classify.js";|import { classifyFile } from "./classify.js";\nimport type { CaseResult } from "./eval.js";|' src/cli.ts && pnpm -s typecheck && echo ok

[tool output omitted]

$ ls test; grep -n "^import\|^test(\|^describe" test/eval.test.ts | head; cat <scratch>

[tool output omitted]

$ head -30 test/classify.test.ts

[tool output omitted]

<repo>/test/eval.test.ts

[tool output omitted]

<repo>/ml/finetune.py

[tool output omitted]

$ node --import tsx --test test/eval.test.ts 2>&1 | grep -E "^ℹ (pass|fail)|✖|not ok" ; wc -l eval/replies/*.jsonl 2>/dev/null; cat <scratch>

[tool output omitted]

$ ps -Ao pid,etime,command | grep -E "dz eval|cli.ts eval|finetune.py" | grep -v grep | cut -c1-160; ls -la <repo>/eval/results/

[tool output omitted]

$ ps -Ao pid,etime,command | grep -E "eval --provider|finetune.py" | grep -v grep | cut -c1-160

[tool output omitted]

{"recap":"Tinker는 Gemma를 지원하지 않아 Qwen3.5-4B를 골랐습니다. Qwen 기준선 샘플링과 Backboard 무료 모델 평가는 아직 돌고 있습니다. / Tinker has no Gemma, so I picked Qwen3.5-4B. The Qwen baseline sampling and the Backboard free-model...

[tool output omitted]

{"items":[{"content":"Find zero-cost Backboard models with JSON output","status":"completed"},{"content":"Run dz eval on free Backboard models","status":"in_progress"},{"content":"Sample Qwen3.5-4B ba...

[tool output omitted]

$ cd <repo>; cat <scratch> | grep -v "HF Hub\|Deprecation\|save_weights"; echo ---; cat <scratch> wc -l eval/replies/*; ls eval/results

[tool output omitted]

$ cd <repo>; python3 -c "
import json
rs=[json.loads(l) for l in open('eval/replies/qwen3.5-4b-base.jsonl')]
print([r['ms'] for r in rs]); print(rs[0]['raw'][:300])"

[tool output omitted]

$ cd <repo>; grep -v "HF Hub\|Deprecation\|save_weights" <scratch> echo ---; cat <scratch> wc -l eval/replies/*; ls eval/results; ps -Ao pid,etime,command | grep -E "eval --provider|finetune.py" | grep -v grep | cut -c1-140

[tool output omitted]

$ pnpm -s dz eval --provider replay --replies eval/replies/qwen3.5-4b-base.jsonl 2>&1 | head -30

[tool output omitted]

$ python3 -c "
import json
r=json.load(open('eval/results/tinker_qwen3.5-4b-base-test.json'))
for x in r['results']:
  if not x['dateOk']: print(x['id'],x['expected'],x['got'])"

[tool output omitted]

$ cat <scratch> ls <repo>/eval/results

[tool output omitted]

$ cat > $TMPDIR/bb-smoke.ts <<'EOF'
import { BackboardClient } from "<repo>/src/backboard.ts";
const c = new BackboardClient({ apiKey: <redacted> provider: "openrouter", model: "google/gemma-4-31b-it" });
try { await c.init(); const out = await c.generate('Reply with {"ok": true}'); console.log("OK:", out.slice(0, 80), c.usage); }
catch (e) { console.log("ERR:", String(e).replace(/org_[A-Za-z0-9]+/g, "org_…").slice(0, 300)); }
finally { await c.close(); }
EOF
set -a && . ./.env && set +a && node --import tsx $TMPDIR/bb-smoke.ts

[tool output omitted]

$ mv $TMPDIR/bb-smoke.ts $TMPDIR/bb-smoke.mts && set -a && . ./.env && set +a && node --import tsx $TMPDIR/bb-smoke.mts

[tool output omitted]

{"items":[{"content":"Remove Backboard client, option and result","status":"in_progress"},{"content":"LoRA fine-tune Qwen as a control","status":"in_progress"},{"content":"Score LoRA replies with dz e...

[tool output omitted]

$ grep -rn -i "backboard" --exclude-dir=node_modules --exclude-dir=.venv --exclude-dir=target . | grep -v "^./eval/results\|^./src/backboard.ts" | cut -c1-160; grep -v "HF Hub\|Deprecation\|save_weights" <scratch>

[tool output omitted]

$ sed -n 580,640p src/cli.ts; sed -n 20,32p .env.example; sed -n 1,8p scripts/make-eval.ts

[tool output omitted]

$ python3 - <<'EOF'
p='src/cli.ts'; s=open(p).read()
start=s.index('  } else if (provider === "backboard") {'); end=s.index('  } else if (provider === "replay") {')
s=s[:start]+s[end:]
s=s.replace('[--provider ollama|backboard|replay]','[--provider ollama|replay]')
s=s.replace('"--provider must be ollama, backboard, or replay."','"--provider must be ollama or replay."')
s=s.replace('  let finish = async (): Promise<Record<string, unknown>> => ({});\n','  let extra: Record<string, unknown> = {};\n')
s=s.replace('    finish = async () => ({ latencySource: "recorded by ml/finetune.py, one Tinker request at a time" });','    extra = { latencySource: "recorded by ml/finetune.py, one Tinker request at a time" };')
s=s.replace('''  let base: Awaited<ReturnType<typeof runEval>>;
  let extra: Record<string, unknown> = {};
  try {
    base = await runEval(client, label, cases, split, (done, total) => {
      if (process.stderr.isTTY) process.stderr.write(`\\rEvaluating ${done}/${total}...`);
    });
  } finally {
    // Always clean up (Backboard: delete the run's assistant), even if the run failed.
    extra = await finish();
  }
''','''  let base = await runEval(client, label, cases, split, (done, total) => {
    if (process.stderr.isTTY) process.stderr.write(`\\rEvaluating ${done}/${total}...`);
  });
''')
a=s.index('  const usage = report.usage as'); b=s.index('  console.log("  By tag:");')
s=s[:a]+s[b:]
open(p,'w').write(s)
p='.env.example'; s=open(p).read(); s=s.replace('# Backboar …[truncated]

[tool output omitted]

$ git rm -qf src/backboard.ts && rm eval/results/backboard_*.json && grep -rn -i backboard src scripts .env.example README.md; pnpm -s typecheck && echo typecheck ok; grep -n "let base\|const base" src/cli.ts

[tool output omitted]

$ grep -v "HF Hub\|Deprecation\|save_weights" <scratch> wc -l <repo>/eval/replies/*

[tool output omitted]

$ cd <repo>; for i in $(seq 1 30); do [ $(wc -l < eval/replies/qwen3.5-4b-lora.jsonl) -ge 63 ] && break; sleep 5; done; sleep 2; grep -v "HF Hub\|Deprecation\|save_weights" <scratch> pnpm -s dz eval --provider replay --replies eval/replies/qwen3.5-4b-lora.jsonl 2>&1 | grep -v "^    [a-z-]* *100.0%"; python3 -c "
import json
r=json.load(open('eval/results/tinker_qwen3.5-4b-lora-test.json'))
for x in r['results']:
  if not x['dateOk'] or not x['categoryOk']: print(x['id'],x['expected'],x['got'])"

[tool output omitted]

$ head -1 eval/replies/qwen3.5-4b-lora.jsonl | python3 -c "import json,sys;print(json.loads(sys.stdin.read())['raw'])"; python3 -c "
import json
for f in ['base','lora']:
  rs=[json.loads(l) for l in open(f'eval/replies/qwen3.5-4b-{f}.jsonl')]
  print(f, 'avg chars', sum(len(r['raw']) for r in rs)//len(rs))"; grep -n -i "eval" README.md | head -20

[tool output omitted]

$ grep -n "^#" README.md

[tool output omitted]

$ sed -n 224,258p README.md; sed -n 33,55p README.md

[tool output omitted]

$ python3 - <<'EOF'
p='README.md'; s=open(p).read()
s=s.replace('''| `dz receipts [folder]` | Reads every receipt and invoice and writes date, vendor, total, currency, and document number to a CSV |
''','''| `dz receipts [folder]` | Reads every receipt and invoice and writes date, vendor, total, currency, and document number to a CSV |
| `dz eval [--split test]` | Scores the classifier on the synthetic labeled set in `eval/cases.jsonl` (see below) |
''')
section='''## Measuring the classifier

`eval/cases.jsonl` holds 180 synthetic downloads with labels (117 to train on, 63 to test with): Korean documents, different date formats, misleading file names, and look-alike categories such as receipt vs invoice. Every vendor, name, and amount is made up, so this set, and only this set, may be sent to a cloud service. `dz eval` runs the test cases through the same prompt, schema check, and date grounding as a real run.

The first run caught a real bug: file names were built ASCII-only, so every Korean title came out empty and those files landed in "other". After the fix, category accuracy went from 85.7% to 98.4%.

As a control, a similar-size open model was fine-tuned on the 117 training cases with [Tinker](https://thinkingmachines.ai/tinker/) (LoRA, rank 16, 3 epochs; `ml/finetune.py`). Tinker does not offer Gemma, so this does not change the app's model; it asks whether fine-tuning is worth doing at all. Its replies are scored by the same pipeline with `dz eval --provider replay`.

 …[truncated]

[tool output omitted]

$ grep '"id":"statement-1"' eval/cases.jsonl | python3 -c "import json,sys;print(json.loads(sys.stdin.read())['text'])"

[tool output omitted]

$ sed -i '' '/^\/\*\* Lowercase kebab-case, ASCII only. \*\/$/d' src/classify.ts && pnpm -s typecheck && pnpm -s test 2>&1 | grep -E "^ℹ (tests|pass|fail)|✖" ; git status --short

[tool output omitted]

$ git add .env.example .gitignore README.md ml/pyproject.toml ml/uv.lock scripts/make-eval.ts src/backboard.ts src/classify.ts src/cli.ts src/eval.ts eval/replies eval/results/tinker_qwen3.5-4b-base-test.json eval/results/tinker_qwen3.5-4b-lora-test.json ml/finetune.py scripts/export-sft.ts test/eval.test.ts && git commit -q -F - <<'EOF'
feat: fine-tune a control model on Tinker; drop Backboard

- ml/finetune.py trains a LoRA (rank 16, 3 epochs) on the 117 synthetic
  training cases with Tinker, then samples the 63 test prompts one request
  at a time. --no-train samples the base model as the baseline. Only
  synthetic cases are sent.
- scripts/export-sft.ts builds the prompt/reply pairs with the real
  buildPrompt, so the tuned model sees exactly what the app sends.
- dz eval --provider replay --replies <file> scores those recorded replies
  through the same parsing, validation, and date grounding as a live model,
  and reports the latency measured when they were recorded.
- Tinker has no Gemma, so Qwen3.5-4B is a control, not a new app model.
  Results on the test split: untrained 100% category / 92.1% date; tuned
  100% / 100%; local Gemma 4 e4b stays at 98.4% / 100% and is twice as fast.
  All three near 100% means the test set needs harder cases (README).
- Backboard is removed: its free credit does not cover LLM calls, and the
  comparison it was for is covered by the Tinker control.
- Bump tinker to 0.34.0.

Co-Authored-By: Claude Opus 5.5 <<email>>
EOF
git log --format= …[truncated]

[tool output omitted]

$ git add .env.example .gitignore README.md ml/pyproject.toml ml/uv.lock scripts/make-eval.ts src/classify.ts src/cli.ts src/eval.ts eval/replies eval/results/tinker_qwen3.5-4b-base-test.json eval/results/tinker_qwen3.5-4b-lora-test.json ml/finetune.py scripts/export-sft.ts test/eval.test.ts && git status --short && git commit -q -F - <<'EOF'
feat: fine-tune a control model on Tinker; drop Backboard

- ml/finetune.py trains a LoRA (rank 16, 3 epochs) on the 117 synthetic
  training cases with Tinker, then samples the 63 test prompts one request
  at a time. --no-train samples the base model as the baseline. Only
  synthetic cases are sent.
- scripts/export-sft.ts builds the prompt/reply pairs with the real
  buildPrompt, so the tuned model sees exactly what the app sends.
- dz eval --provider replay --replies <file> scores those recorded replies
  through the same parsing, validation, and date grounding as a live model,
  and reports the latency measured when they were recorded.
- Tinker has no Gemma, so Qwen3.5-4B is a control, not a new app model.
  Results on the test split: untrained 100% category / 92.1% date; tuned
  100% / 100%; local Gemma 4 e4b stays at 98.4% / 100% and is twice as fast.
  All three near 100% means the test set needs harder cases (README).
- Backboard is removed: its free credit does not cover LLM calls, and the
  comparison it was for is covered by the Tinker control.
- Bump tinker to 0.34.0.

Co-Authored-By: Claude Opus 5.5 <<email>>
EOF
git log --fo …[truncated]

[tool output omitted]

{"recap":"Backboard를 제거하고 Tinker 대조 실험(Qwen 파인튜닝)을 커밋 5c886f0으로 푸시했습니다. 튜닝 후 Qwen은 100%가 나왔지만, 로컬 Gemma(98.4%)가 두 배 빨라 앱 모델은 그대로 Gemma입니다. / Removed Backboard and pushed the Tinker control (Qwen fine-...

[tool output omitted]