diff --git a/test/fixtures/parser-conformance/allowlist.json b/test/fixtures/parser-conformance/allowlist.json
index 42c0042a..b8b5ea52 100644
--- a/test/fixtures/parser-conformance/allowlist.json
+++ b/test/fixtures/parser-conformance/allowlist.json
@@ -1,7 +1,7 @@
 {
   "_why": "Parsers with no conformance fixture yet. This list is a RATCHET: parser-conformance.test.js fails if it is longer than max_size, and also fails if it is SHORTER, telling you to lower max_size in the same commit. An allowlist that can grow is a TODO list, and this repo has evidence about what happens to those.",
   "_how_to_remove_an_entry": "Add test/fixtures/parser-conformance/<parserName>.cjs (see craft.cjs for the shape), delete the entry here, and lower max_size by one.",
-  "max_size": 21,
+  "max_size": 20,
   "parsers": {
     "parseRolloutIncremental": "Codex rollout JSONL. Covered behaviourally by test/rollout-parser.test.js; no conformance fixture yet.",
     "parseClaudeIncremental": "Covered behaviourally by test/rollout-parser.test.js; no conformance fixture yet.",
@@ -11,7 +11,6 @@
     "parseOpencodeDbIncremental": "Reads a SQLite database. A fixture needs a real schema, not a JSONL line.",
     "parseCursorApiIncremental": "Talks to Cursor's API shape rather than a local log; covered by test/cursor-parser.test.js.",
     "parseKiroIncremental": "No conformance fixture yet; test/fixtures/kiro-cli exists for the CLI variant.",
-    "parseHermesIncremental": "Reads a SQLite database across profile directories. A fixture needs a real schema, not a JSONL line.",
     "parseKiroCliIncremental": "No conformance fixture yet.",
     "parseKimiCodeIncremental": "No conformance fixture yet.",
     "parseRoocodeIncremental": "Covered by test/roocode-parser.test.js; no conformance fixture yet.",
diff --git a/test/fixtures/parser-conformance/hermes.cjs b/test/fixtures/parser-conformance/hermes.cjs
new file mode 100644
index 00000000..dc7fa186
--- /dev/null
+++ b/test/fixtures/parser-conformance/hermes.cjs
@@ -0,0 +1,133 @@
+"use strict";
+
+// Conformance fixture for parseHermesIncremental.
+//
+// This one was on the allowlist because Hermes reads a SQLite database across
+// profile directories rather than a JSONL file, and the note said a fixture
+// "needs a real schema, not a JSONL line". It does — so this builds one.
+//
+// `node:sqlite` ships with Node 22+, which is already the floor for the
+// dashboard tests, and `readHermesSessions` falls back to it when the sqlite3
+// CLI is absent. If neither is available the harness reports the fixture
+// produced no rows rather than passing quietly.
+//
+// Schema taken from the parser's own query (rollout.js:3216), not guessed:
+//   SELECT id, model, started_at, ended_at, input_tokens, output_tokens,
+//          cache_read_tokens, cache_write_tokens, reasoning_tokens, message_count
+//   FROM sessions
+//   WHERE (started_at >= <cursor> OR ended_at IS NULL) AND (any token > 0)
+//
+// `started_at` / `ended_at` are epoch SECONDS; the bucket comes from
+// `ended_at ?? started_at`.
+
+const fs = require("node:fs");
+const path = require("node:path");
+const { DatabaseSync } = require("node:sqlite");
+
+const SCHEMA = `
+  CREATE TABLE sessions (
+    id TEXT PRIMARY KEY,
+    model TEXT,
+    started_at INTEGER,
+    ended_at INTEGER,
+    input_tokens INTEGER,
+    output_tokens INTEGER,
+    cache_read_tokens INTEGER,
+    cache_write_tokens INTEGER,
+    reasoning_tokens INTEGER,
+    message_count INTEGER
+  );
+`;
+
+// Fixed instants so the 30-minute bucket is deterministic rather than whatever
+// the clock says when CI runs.
+const STARTED = Math.floor(Date.parse("2026-05-14T09:12:30.000Z") / 1000);
+const ENDED = Math.floor(Date.parse("2026-05-14T09:20:00.000Z") / 1000);
+
+function writeDb(dbPath, rows) {
+  fs.mkdirSync(path.dirname(dbPath), { recursive: true });
+  const db = new DatabaseSync(dbPath);
+  try {
+    db.exec(SCHEMA);
+    const insert = db.prepare(
+      `INSERT INTO sessions
+         (id, model, started_at, ended_at, input_tokens, output_tokens,
+          cache_read_tokens, cache_write_tokens, reasoning_tokens, message_count)
+       VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?)`,
+    );
+    for (const r of rows) {
+      insert.run(
+        r.id,
+        r.model,
+        r.started_at,
+        r.ended_at,
+        r.input_tokens,
+        r.output_tokens,
+        r.cache_read_tokens,
+        r.cache_write_tokens,
+        r.reasoning_tokens,
+        r.message_count,
+      );
+    }
+  } finally {
+    db.close();
+  }
+}
+
+module.exports = {
+  source: "hermes",
+  parser: "parseHermesIncremental",
+  build(dir) {
+    const hermesPath = path.join(dir, "hermes");
+
+    writeDb(path.join(hermesPath, "state.db"), [
+      {
+        id: "hermes-session-finished",
+        model: "claude-sonnet-5",
+        started_at: STARTED,
+        ended_at: ENDED,
+        input_tokens: 4200,
+        output_tokens: 810,
+        cache_read_tokens: 15000,
+        cache_write_tokens: 300,
+        reasoning_tokens: 120,
+        message_count: 14,
+      },
+      // A session with no cache or reasoning columns filled: the row must still
+      // satisfy the column sum rather than be excused from it.
+      {
+        id: "hermes-session-plain",
+        model: "claude-sonnet-5",
+        started_at: STARTED,
+        ended_at: ENDED,
+        input_tokens: 90,
+        output_tokens: 10,
+        cache_read_tokens: 0,
+        cache_write_tokens: 0,
+        reasoning_tokens: 0,
+        message_count: 2,
+      },
+    ]);
+
+    // The profile directory walk is the part unique to this parser — a second
+    // database under profiles/<name>/state.db has to be picked up too, and a
+    // profile with no state.db must be skipped rather than throw.
+    writeDb(path.join(hermesPath, "profiles", "work", "state.db"), [
+      {
+        id: "hermes-session-work-profile",
+        model: "claude-opus-5",
+        started_at: STARTED,
+        ended_at: ENDED,
+        input_tokens: 500,
+        output_tokens: 60,
+        cache_read_tokens: 0,
+        cache_write_tokens: 0,
+        reasoning_tokens: 40,
+        message_count: 3,
+      },
+    ]);
+    fs.mkdirSync(path.join(hermesPath, "profiles", "empty"), { recursive: true });
+
+    return { hermesPath };
+  },
+};
diff --git a/test/init-uninstall.test.js b/test/init-uninstall.test.js
index 017bbe65..07c3c4ca 100644
--- a/test/init-uninstall.test.js
+++ b/test/init-uninstall.test.js
@@ -29,6 +29,15 @@ async function waitForFile(filePath, { timeoutMs = 1500, intervalMs = 50 } = {})
   return null;
 }
 
+// The notify handler spawns a background sync, and since it now runs with an
+// ISOLATED HOME that sync writes inside this very temp directory. The write can
+// land after execFile's callback has fired, so a plain rm races it and fails
+// with ENOTEMPTY. Retrying is the right answer rather than waiting on a process
+// the handler deliberately detaches.
+async function cleanupTemp(dir) {
+  await fs.rm(dir, { recursive: true, force: true, maxRetries: 5, retryDelay: 120 });
+}
+
 function flattenHookEntries(entries) {
   return entries.flatMap((entry) => (Array.isArray(entry?.hooks) ? entry.hooks : [entry]));
 }
@@ -108,7 +117,7 @@ test("notify handler skips SkyComputerUseClient and stale explicit original noti
       notify: [path.join(tmp, "missing-notify"), "turn-ended"],
     });
   } finally {
-    await fs.rm(tmp, { recursive: true, force: true });
+    await cleanupTemp(tmp);
   }
 });
 
@@ -133,7 +142,7 @@ test("notify handler still chains normal original notify commands", async () =>
     assert.ok(marker, "expected chained notify marker to be written");
     assert.ok(marker.includes("turn-ended"), "expected payload args to be forwarded");
   } finally {
-    await fs.rm(tmp, { recursive: true, force: true });
+    await cleanupTemp(tmp);
   }
 });
 
@@ -199,7 +208,7 @@ test("init scrubs cloud credentials and endpoints while preserving local config"
     else process.env.TOKENTRACKER_DEVICE_TOKEN = prevToken;
     if (prevOpencodeConfigDir === undefined) delete process.env.OPENCODE_CONFIG_DIR;
     else process.env.OPENCODE_CONFIG_DIR = prevOpencodeConfigDir;
-    await fs.rm(tmp, { recursive: true, force: true });
+    await cleanupTemp(tmp);
   }
 });
 
@@ -255,7 +264,7 @@ test("init then uninstall restores original Codex notify (when pre-existing noti
     else process.env.TOKENTRACKER_DEVICE_TOKEN = prevToken;
     if (prevOpencodeConfigDir === undefined) delete process.env.OPENCODE_CONFIG_DIR;
     else process.env.OPENCODE_CONFIG_DIR = prevOpencodeConfigDir;
-    await fs.rm(tmp, { recursive: true, force: true });
+    await cleanupTemp(tmp);
   }
 });
 
@@ -312,7 +321,7 @@ test("init then uninstall removes notify when none existed", async () => {
     else process.env.TOKENTRACKER_DEVICE_TOKEN = prevToken;
     if (prevOpencodeConfigDir === undefined) delete process.env.OPENCODE_CONFIG_DIR;
     else process.env.OPENCODE_CONFIG_DIR = prevOpencodeConfigDir;
-    await fs.rm(tmp, { recursive: true, force: true });
+    await cleanupTemp(tmp);
   }
 });
 
@@ -349,7 +358,7 @@ test("init skips Codex notify when config is missing", async () => {
     else process.env.OPENCODE_CONFIG_DIR = prevOpencodeConfigDir;
     if (prevGeminiHome === undefined) delete process.env.GEMINI_HOME;
     else process.env.GEMINI_HOME = prevGeminiHome;
-    await fs.rm(tmp, { recursive: true, force: true });
+    await cleanupTemp(tmp);
   }
 });
 
@@ -407,7 +416,7 @@ test("init then uninstall restores original Every Code notify (when config exist
     else process.env.TOKENTRACKER_DEVICE_TOKEN = prevToken;
     if (prevOpencodeConfigDir === undefined) delete process.env.OPENCODE_CONFIG_DIR;
     else process.env.OPENCODE_CONFIG_DIR = prevOpencodeConfigDir;
-    await fs.rm(tmp, { recursive: true, force: true });
+    await cleanupTemp(tmp);
   }
 });
 
@@ -449,7 +458,7 @@ test("init skips Every Code notify when config is missing", async () => {
     else process.env.TOKENTRACKER_DEVICE_TOKEN = prevToken;
     if (prevOpencodeConfigDir === undefined) delete process.env.OPENCODE_CONFIG_DIR;
     else process.env.OPENCODE_CONFIG_DIR = prevOpencodeConfigDir;
-    await fs.rm(tmp, { recursive: true, force: true });
+    await cleanupTemp(tmp);
   }
 });
 
@@ -491,7 +500,7 @@ test("uninstall skips notify restore when no backup and notify not installed", a
     else process.env.CODE_HOME = prevCodeHome;
     if (prevOpencodeConfigDir === undefined) delete process.env.OPENCODE_CONFIG_DIR;
     else process.env.OPENCODE_CONFIG_DIR = prevOpencodeConfigDir;
-    await fs.rm(tmp, { recursive: true, force: true });
+    await cleanupTemp(tmp);
   }
 });
 
@@ -538,7 +547,7 @@ test("uninstall removes Grok Build hook and handler", async () => {
     else process.env.HOME = prevHome;
     if (prevGrokHome === undefined) delete process.env.GROK_HOME;
     else process.env.GROK_HOME = prevGrokHome;
-    await fs.rm(tmp, { recursive: true, force: true });
+    await cleanupTemp(tmp);
   }
 });
 
@@ -615,7 +624,7 @@ test("init then uninstall manages Claude hooks without removing existing hooks",
     else process.env.TOKENTRACKER_DEVICE_TOKEN = prevToken;
     if (prevOpencodeConfigDir === undefined) delete process.env.OPENCODE_CONFIG_DIR;
     else process.env.OPENCODE_CONFIG_DIR = prevOpencodeConfigDir;
-    await fs.rm(tmp, { recursive: true, force: true });
+    await cleanupTemp(tmp);
   }
 });
 
@@ -704,7 +713,7 @@ test("init then uninstall manages Gemini hooks without removing existing hooks",
     else process.env.OPENCODE_CONFIG_DIR = prevOpencodeConfigDir;
     if (prevGeminiHome === undefined) delete process.env.GEMINI_HOME;
     else process.env.GEMINI_HOME = prevGeminiHome;
-    await fs.rm(tmp, { recursive: true, force: true });
+    await cleanupTemp(tmp);
   }
 });
 
@@ -744,7 +753,7 @@ test("init skips Gemini hooks when config directory is missing", async () => {
     else process.env.OPENCODE_CONFIG_DIR = prevOpencodeConfigDir;
     if (prevGeminiHome === undefined) delete process.env.GEMINI_HOME;
     else process.env.GEMINI_HOME = prevGeminiHome;
-    await fs.rm(tmp, { recursive: true, force: true });
+    await cleanupTemp(tmp);
   }
 });
 
@@ -794,7 +803,7 @@ test("init creates Gemini settings when directory exists but file is missing", a
     else process.env.OPENCODE_CONFIG_DIR = prevOpencodeConfigDir;
     if (prevGeminiHome === undefined) delete process.env.GEMINI_HOME;
     else process.env.GEMINI_HOME = prevGeminiHome;
-    await fs.rm(tmp, { recursive: true, force: true });
+    await cleanupTemp(tmp);
   }
 });
 
@@ -844,7 +853,7 @@ test("init then uninstall manages Opencode plugin without removing other plugins
     else process.env.TOKENTRACKER_DEVICE_TOKEN = prevToken;
     if (prevOpencodeConfigDir === undefined) delete process.env.OPENCODE_CONFIG_DIR;
     else process.env.OPENCODE_CONFIG_DIR = prevOpencodeConfigDir;
-    await fs.rm(tmp, { recursive: true, force: true });
+    await cleanupTemp(tmp);
   }
 });
 
@@ -882,7 +891,7 @@ test("init installs Opencode plugin when config dir is missing", async () => {
     else process.env.TOKENTRACKER_DEVICE_TOKEN = prevToken;
     if (prevOpencodeConfigDir === undefined) delete process.env.OPENCODE_CONFIG_DIR;
     else process.env.OPENCODE_CONFIG_DIR = prevOpencodeConfigDir;
-    await fs.rm(tmp, { recursive: true, force: true });
+    await cleanupTemp(tmp);
   }
 });