diff --git a/proto-cuda/windows-miner/UPLOAD.md b/proto-cuda/windows-miner/UPLOAD.md
new file mode 100644
index 00000000..0823b48a
--- /dev/null
+++ b/proto-cuda/windows-miner/UPLOAD.md
@@ -0,0 +1,7 @@
+# Sending miner logs to Claude
+
+1. Run `upload-log.bat <logfile> <label>` from this folder, for example `upload-log.bat miner.log rtx4090-run1`. Windows 10 and 11 need nothing installed (curl.exe and PowerShell ship with Windows).
+2. It posts the last 256 KB of the file to `https://igneum-six.vercel.app/api/log` with the key baked into the bat, which only authorises log uploads.
+3. Run it as often as you like during a test; every call stores a fresh snapshot. Pass a third argument or set `IGNEUM_RUN_ID` to keep one run_id across calls, otherwise the run_id is `<label>-<date>-<time>`.
+4. On the Mac, `node tools/logs.mjs` lists runs and `node tools/logs.mjs <run_id>` prints the latest snapshot (`--all` prints every one).
+5. The log never contains secrets; the intake stores label, machine name, run_id, the lines and the byte count.
diff --git a/proto-cuda/windows-miner/upload-log.bat b/proto-cuda/windows-miner/upload-log.bat
new file mode 100644
index 00000000..56e558f6
--- /dev/null
+++ b/proto-cuda/windows-miner/upload-log.bat
@@ -0,0 +1,41 @@
+@echo off
+rem Igneum miner log uploader. Sends the last 256 KB of a log file to the Igneum log intake
+rem so Claude on the Mac can read it (node tools/logs.mjs). Needs Windows 10 or 11 (curl.exe, PowerShell).
+rem Usage: upload-log.bat <logfile> <label> [run_id]
+rem run_id falls back to the IGNEUM_RUN_ID environment variable, then to <label>-<date>-<time>.
+rem The key below only authorises log uploads. It is meant to ship inside this package.
+setlocal
+set "IGNEUM_LOG_URL=https://igneum-six.vercel.app/api/log"
+set "IGNEUM_LOG_KEY=***INTAKE-KEY-REMOVED***"
+
+if "%~1"=="" goto usage
+if "%~2"=="" goto usage
+if not exist "%~1" (
+  echo upload-log: file not found: %~1
+  exit /b 2
+)
+set "LOGFILE=%~f1"
+set "LABEL=%~2"
+set "RUNID=%~3"
+if "%RUNID%"=="" set "RUNID=%IGNEUM_RUN_ID%"
+set "OUT=%TEMP%\igneum-upload-%RANDOM%.json"
+
+powershell -NoProfile -ExecutionPolicy Bypass -Command "$ErrorActionPreference='Stop'; $b=[IO.File]::ReadAllBytes($env:LOGFILE); $n=[Math]::Min($b.Length,262144); $t=[Text.Encoding]::UTF8.GetString($b,$b.Length-$n,$n); $r=$env:RUNID; if (-not $r) { $r=$env:LABEL + '-' + (Get-Date -Format 'yyyyMMdd-HHmm') }; $o=@{label=$env:LABEL;machine=$env:COMPUTERNAME;run_id=$r;lines=$t}; [IO.File]::WriteAllText($env:OUT,(ConvertTo-Json $o -Compress),(New-Object Text.UTF8Encoding $false)); Write-Host ('upload-log: run_id ' + $r + ', ' + $n + ' bytes')"
+if errorlevel 1 (
+  echo upload-log: could not read or encode %LOGFILE%
+  exit /b 3
+)
+
+curl.exe -sS --max-time 60 -X POST "%IGNEUM_LOG_URL%" -H "Content-Type: application/json" -H "x-igneum-key: %IGNEUM_LOG_KEY%" --data-binary "@%OUT%"
+set "RC=%ERRORLEVEL%"
+echo.
+del "%OUT%" >nul 2>&1
+if not "%RC%"=="0" (
+  echo upload-log: curl failed with code %RC%
+  exit /b %RC%
+)
+exit /b 0
+
+:usage
+echo Usage: upload-log.bat ^<logfile^> ^<label^> [run_id]
+exit /b 1
diff --git a/site/api/log.mjs b/site/api/log.mjs
new file mode 100644
index 00000000..051911c0
--- /dev/null
+++ b/site/api/log.mjs
@@ -0,0 +1,64 @@
+// Igneum miner log intake. POST /api/log with header x-igneum-key and a JSON body
+// {label, machine, run_id, lines}. Stores one row in Neon table miner_logs.
+// Zero dependencies: Neon's HTTP SQL endpoint over Node's built-in fetch.
+// Read back on the Mac with `node tools/logs.mjs`.
+
+const MAX_LINES = 256 * 1024;
+
+function neon() {
+  const url = process.env.DATABASE_URL;
+  if (!url) throw new Error('DATABASE_URL is not set');
+  const host = new URL(url).hostname.replace('-pooler', '');
+  return async (query, params = []) => {
+    const r = await fetch(`https://${host}/sql`, {
+      method: 'POST',
+      headers: { 'Neon-Connection-String': url, 'Content-Type': 'application/json' },
+      body: JSON.stringify({ query, params }),
+    });
+    const j = await r.json();
+    if (!r.ok) throw new Error(j.message || JSON.stringify(j));
+    return j;
+  };
+}
+
+async function readBody(req) {
+  if (req.body !== undefined && req.body !== null) {
+    if (typeof req.body === 'string') return JSON.parse(req.body);
+    if (Buffer.isBuffer(req.body)) return JSON.parse(req.body.toString('utf8'));
+    return req.body;
+  }
+  const chunks = [];
+  for await (const c of req) chunks.push(c);
+  return JSON.parse(Buffer.concat(chunks).toString('utf8') || '{}');
+}
+
+const str = (v, max) => (v === undefined || v === null ? '' : String(v)).slice(0, max);
+
+export default async function handler(req, res) {
+  res.setHeader('Cache-Control', 'no-store');
+  if (req.method !== 'POST') {
+    res.setHeader('Allow', 'POST');
+    return res.status(405).json({ ok: false, error: 'method not allowed' });
+  }
+  const key = process.env.LOG_INTAKE_KEY;
+  const given = req.headers['x-igneum-key'];
+  if (!key || typeof given !== 'string' || given !== key) {
+    return res.status(401).json({ ok: false, error: 'bad key' });
+  }
+  let body;
+  try { body = await readBody(req); } catch { return res.status(400).json({ ok: false, error: 'bad json' }); }
+  let lines = str(body.lines, Infinity);
+  const buf = Buffer.from(lines, 'utf8');
+  if (buf.length > MAX_LINES) lines = buf.subarray(buf.length - MAX_LINES).toString('utf8');
+  const bytes = Buffer.byteLength(lines, 'utf8');
+  try {
+    const sql = neon();
+    const r = await sql(
+      'INSERT INTO miner_logs (label, machine, run_id, lines, bytes) VALUES ($1, $2, $3, $4, $5) RETURNING id',
+      [str(body.label, 200), str(body.machine, 200), str(body.run_id, 200), lines, bytes],
+    );
+    return res.status(200).json({ ok: true, id: Number(r.rows[0].id), bytes });
+  } catch (e) {
+    return res.status(500).json({ ok: false, error: String(e.message || e) });
+  }
+}
diff --git a/tools/logs.mjs b/tools/logs.mjs
new file mode 100755
index 00000000..da8be16d
--- /dev/null
+++ b/tools/logs.mjs
@@ -0,0 +1,53 @@
+#!/usr/bin/env node
+// Reader for the miner log intake (site/api/log.mjs). Runs on the Mac.
+//   node tools/logs.mjs            list runs: label, machine, run_id, last received, total bytes
+//   node tools/logs.mjs <run_id>   print the latest upload for that run
+//   node tools/logs.mjs <run_id> --all   print every upload for that run, oldest first
+// Reads DATABASE_URL from ~/.config/igneum/env. No dependencies: Neon HTTP SQL over fetch.
+import { readFileSync } from 'node:fs';
+import { homedir } from 'node:os';
+
+process.stdout.on('error', e => { if (e.code === 'EPIPE') process.exit(0); throw e; });
+
+const env = readFileSync(`${homedir()}/.config/igneum/env`, 'utf8');
+const m = /^DATABASE_URL=(.*)$/m.exec(env);
+if (!m) { console.error('DATABASE_URL not found in ~/.config/igneum/env'); process.exit(1); }
+const url = m[1].trim().replace(/^['"]|['"]$/g, '');
+const host = new URL(url).hostname.replace('-pooler', '');
+
+async function sql(query, params = []) {
+  const r = await fetch(`https://${host}/sql`, {
+    method: 'POST',
+    headers: { 'Neon-Connection-String': url, 'Content-Type': 'application/json' },
+    body: JSON.stringify({ query, params }),
+  });
+  const j = await r.json();
+  if (!r.ok) throw new Error(j.message || JSON.stringify(j));
+  return j.rows;
+}
+
+const [runId, flag] = process.argv.slice(2);
+
+if (!runId) {
+  const rows = await sql(`
+    SELECT run_id, max(label) AS label, max(machine) AS machine, count(*)::int AS uploads,
+           max(received_at) AS last_received, sum(bytes)::bigint AS total_bytes
+    FROM miner_logs GROUP BY run_id ORDER BY max(received_at) DESC LIMIT 100`);
+  if (!rows.length) { console.log('No runs yet.'); process.exit(0); }
+  const fmt = rows.map(r => ({
+    run_id: r.run_id, label: r.label, machine: r.machine, uploads: r.uploads,
+    last_received: new Date(r.last_received).toISOString().replace('T', ' ').slice(0, 19) + ' UTC',
+    total_bytes: Number(r.total_bytes),
+  }));
+  console.table(fmt);
+  process.exit(0);
+}
+
+const rows = flag === '--all'
+  ? await sql('SELECT id, received_at, label, machine, bytes, lines FROM miner_logs WHERE run_id = $1 ORDER BY received_at ASC', [runId])
+  : await sql('SELECT id, received_at, label, machine, bytes, lines FROM miner_logs WHERE run_id = $1 ORDER BY received_at DESC LIMIT 1', [runId]);
+if (!rows.length) { console.error(`No uploads for run_id ${runId}`); process.exit(1); }
+for (const r of rows) {
+  console.log(`===== id ${r.id} | ${r.label} | ${r.machine} | ${new Date(r.received_at).toISOString()} | ${r.bytes} bytes =====`);
+  process.stdout.write(r.lines.endsWith('\n') ? r.lines : r.lines + '\n');
+}