diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 2807521..1d2e7e8 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -41,7 +41,7 @@ jobs:
         run: |
           sudo apt-get update
           sudo apt-get install -y libwebkit2gtk-4.1-dev librsvg2-dev \
-            libayatana-appindicator3-dev patchelf
+            libayatana-appindicator3-dev patchelf libasound2-dev
       - uses: actions/setup-node@v4
         with:
           node-version: 22
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 5cf828e..7c260d5 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -33,7 +33,7 @@ jobs:
         run: |
           sudo apt-get update
           sudo apt-get install -y libwebkit2gtk-4.1-dev librsvg2-dev \
-            libayatana-appindicator3-dev patchelf
+            libayatana-appindicator3-dev patchelf libasound2-dev
 
       - uses: actions/setup-node@v4
         with:
@@ -84,6 +84,9 @@ jobs:
   # to another repo. If the secret is absent the step no-ops (release still ships).
   update-cask:
     needs: release
+    # Disabled: the Homebrew cask is bumped manually for now. Re-enable by
+    # removing this guard to restore automatic tap updates on release.
+    if: false
     runs-on: ubuntu-latest
     steps:
       - name: Bump the Homebrew cask
diff --git a/README.md b/README.md
index 4b1acf5..a2cfcf2 100644
--- a/README.md
+++ b/README.md
@@ -127,6 +127,8 @@ Press `?` in the app (outside a text input) for the full, always-current list.
 | Cycle sidebar view (project / sections / stacks) | `⇄` |
 | Move a session to a section | drag its row onto a section header (drop on *In Progress* to unpin) |
 | Save a review comment | `Cmd/Ctrl+Enter` |
+| Review: previous / next file | `↑` / `↓` or `Ctrl-P` / `Ctrl-N` |
+| Review: toggle a file reviewed (bands the row) | click `○` / `✓` on the file row |
 
 ## Platform notes
 
@@ -135,3 +137,20 @@ The packaging scripts (`app:install`) and the login-shell PATH fix are macOS-spe
 ## Theming
 
 CC-GUI owns its own theming (independent of `claude-commander` config). Ten themes ship built in, and you can drop your own JSON themes into the app's config folder without rebuilding. Full authoring guide: [`docs/theming.md`](docs/theming.md).
+
+## Usage telemetry
+
+CC-GUI embeds `claude-commander`, which reports anonymous **feature-usage** telemetry so the maintainers can see which features are used. It is **on by default** and **opt-out**, identifying itself as `cc-gui` so GUI usage is distinguishable from the terminal app.
+
+**What is sent:** the name of each feature used (e.g. `review.open`), a coarse environment fingerprint (OS, architecture, shell name, terminal colour mode), a non-sensitive config snapshot (theme preset, view mode, which optional features are enabled), the app name + version, and a random, resettable install id.
+
+**What is never sent:** typed text, prompts, Claude session content, comment bodies, branch/session names, repository paths, or command arguments. The event schema is a fixed set of typed fields with no path that forwards free-form text.
+
+**To opt out**, either uncheck **telemetry (send anonymous usage)** in Settings (`Cmd/Ctrl+K` → "Settings"), set the config flag, or export the standard [`DO_NOT_TRACK`](https://consoledonottrack.com/) variable:
+
+```toml
+[telemetry]
+enabled = false
+```
+
+See [`claude-commander`'s configuration docs](https://github.com/sizeak/claude-commander/blob/main/docs/configuration.md#usage-telemetry) for the full detail (and self-hosting the ingest endpoint).
diff --git a/src-tauri/Cargo.lock b/src-tauri/Cargo.lock
index 0863077..1efc70e 100644
--- a/src-tauri/Cargo.lock
+++ b/src-tauri/Cargo.lock
@@ -77,6 +77,28 @@ version = "0.2.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "683d7910e743518b0e34f1186f92494becacb047c7b6bf616c96772180fef923"
 
+[[package]]
+name = "alsa"
+version = "0.9.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ed7572b7ba83a31e20d1b48970ee402d2e3e0537dcfe0a3ff4d6eb7508617d43"
+dependencies = [
+ "alsa-sys",
+ "bitflags 2.13.0",
+ "cfg-if",
+ "libc",
+]
+
+[[package]]
+name = "alsa-sys"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "db8fee663d06c4e303404ef5f40488a53e062f89ba8bfed81f42325aafad1527"
+dependencies = [
+ "libc",
+ "pkg-config",
+]
+
 [[package]]
 name = "android_system_properties"
 version = "0.1.5"
@@ -370,6 +392,24 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "bindgen"
+version = "0.72.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "993776b509cfb49c750f11b8f07a46fa23e0a1386ffc01fb1e7d343efc387895"
+dependencies = [
+ "bitflags 2.13.0",
+ "cexpr",
+ "clang-sys",
+ "itertools 0.13.0",
+ "proc-macro2",
+ "quote",
+ "regex",
+ "rustc-hash",
+ "shlex 1.3.0",
+ "syn 2.0.117",
+]
+
 [[package]]
 name = "bit-set"
 version = "0.5.3"
@@ -645,7 +685,7 @@ dependencies = [
  "find-msvc-tools",
  "jobserver",
  "libc",
- "shlex",
+ "shlex 2.0.1",
 ]
 
 [[package]]
@@ -673,6 +713,15 @@ version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6d43a04d8753f35258c91f8ec639f792891f748a1edbd759cf1dcea3382ad83c"
 
+[[package]]
+name = "cexpr"
+version = "0.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6fac387a98bb7c37292057cffc56d62ecb629900026402633ae9160df93a8766"
+dependencies = [
+ "nom 7.1.3",
+]
+
 [[package]]
 name = "cfb"
 version = "0.7.3"
@@ -726,6 +775,17 @@ dependencies = [
  "windows-link 0.2.1",
 ]
 
+[[package]]
+name = "clang-sys"
+version = "1.8.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0b023947811758c97c59bf9d1c188fd619ad4718dcaa767947df1cadb14f39f4"
+dependencies = [
+ "glob",
+ "libc",
+ "libloading 0.8.9",
+]
+
 [[package]]
 name = "clap"
 version = "4.6.1"
@@ -768,8 +828,8 @@ checksum = "c8d4a3bb8b1e0c1050499d1815f5ab16d04f0959b233085fb31653fbfc9d98f9"
 
 [[package]]
 name = "claude-commander"
-version = "0.17.0"
-source = "git+https://github.com/sizeak/claude-commander?tag=v0.17.0#34ebb647247295be127923d076198f6fec3d130e"
+version = "0.21.0"
+source = "git+https://github.com/sizeak/claude-commander?tag=v0.21.0#c42e3a2ac758055938bf5edb1a37431906cb1cce"
 dependencies = [
  "ansi-to-tui",
  "anyhow",
@@ -777,12 +837,14 @@ dependencies = [
  "chrono",
  "clap",
  "color-eyre",
+ "cpal",
  "crossterm",
  "directories",
  "figment",
  "futures",
  "fuzzy-matcher",
  "gix",
+ "hound",
  "image",
  "nix 0.29.0",
  "pty-process",
@@ -790,6 +852,8 @@ dependencies = [
  "ratatui-image",
  "rayon",
  "regex",
+ "reqwest 0.12.28",
+ "rodio",
  "serde",
  "serde_json",
  "syntect",
@@ -945,6 +1009,49 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "coreaudio-rs"
+version = "0.11.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "321077172d79c662f64f5071a03120748d5bb652f5231570141be24cfcd2bace"
+dependencies = [
+ "bitflags 1.3.2",
+ "core-foundation-sys",
+ "coreaudio-sys",
+]
+
+[[package]]
+name = "coreaudio-sys"
+version = "0.2.18"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b9b4739a805a62757a83e5654fa3faabec0442666b263bb2287d5a8185bfd953"
+dependencies = [
+ "bindgen",
+]
+
+[[package]]
+name = "cpal"
+version = "0.15.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "873dab07c8f743075e57f524c583985fbaf745602acbe916a01539364369a779"
+dependencies = [
+ "alsa",
+ "core-foundation-sys",
+ "coreaudio-rs",
+ "dasp_sample",
+ "jni",
+ "js-sys",
+ "libc",
+ "mach2",
+ "ndk 0.8.0",
+ "ndk-context",
+ "oboe",
+ "wasm-bindgen",
+ "wasm-bindgen-futures",
+ "web-sys",
+ "windows 0.54.0",
+]
+
 [[package]]
 name = "cpufeatures"
 version = "0.2.17"
@@ -1144,6 +1251,12 @@ dependencies = [
  "parking_lot_core",
 ]
 
+[[package]]
+name = "dasp_sample"
+version = "0.11.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0c87e182de0887fd5361989c677c4e8f5000cd9491d6d563161a8f3a5519fc7f"
+
 [[package]]
 name = "dbus"
 version = "0.9.11"
@@ -1913,8 +2026,10 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ff2abc00be7fca6ebc474524697ae276ad847ad0a6b3faa4bcb027e9a4614ad0"
 dependencies = [
  "cfg-if",
+ "js-sys",
  "libc",
  "wasi",
+ "wasm-bindgen",
 ]
 
 [[package]]
@@ -1924,9 +2039,11 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "899def5c37c4fd7b2664648c28120ecec138e4d395b459e5ca34f9cce2dd77fd"
 dependencies = [
  "cfg-if",
+ "js-sys",
  "libc",
  "r-efi 5.3.0",
  "wasip2",
+ "wasm-bindgen",
 ]
 
 [[package]]
@@ -2894,6 +3011,12 @@ version = "0.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7f24254aa9a54b5c858eaee2f5bccdb46aaf0e486a595ed5fd8f86ba55232a70"
 
+[[package]]
+name = "hound"
+version = "3.5.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "62adaabb884c94955b19907d60019f4e145d091c75345379e70d1ee696f7854f"
+
 [[package]]
 name = "html5ever"
 version = "0.38.0"
@@ -2963,6 +3086,22 @@ dependencies = [
  "want",
 ]
 
+[[package]]
+name = "hyper-rustls"
+version = "0.27.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "33ca68d021ef39cf6463ab54c1d0f5daf03377b70561305bb89a8f83aab66e0f"
+dependencies = [
+ "http",
+ "hyper",
+ "hyper-util",
+ "rustls",
+ "tokio",
+ "tokio-rustls",
+ "tower-service",
+ "webpki-roots",
+]
+
 [[package]]
 name = "hyper-util"
 version = "0.1.20"
@@ -3293,6 +3432,15 @@ version = "1.70.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a6cb138bb79a146c1bd460005623e142ef0181e3d0219cb493e02f7d08a35695"
 
+[[package]]
+name = "itertools"
+version = "0.13.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "413ee7dfc52ee1a4949ceeb7dbc8a33f2d6c088194d9f922fb8318faf1f01186"
+dependencies = [
+ "either",
+]
+
 [[package]]
 name = "itertools"
 version = "0.14.0"
@@ -3534,7 +3682,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6e9ec52138abedcc58dc17a7c6c0c00a2bdb4f3427c7f63fa97fd0d859155caf"
 dependencies = [
  "gtk-sys",
- "libloading",
+ "libloading 0.7.4",
  "once_cell",
 ]
 
@@ -3573,6 +3721,16 @@ dependencies = [
  "winapi",
 ]
 
+[[package]]
+name = "libloading"
+version = "0.8.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d7c4b02199fee7c5d21a5ae7d8cfa79a6ef5bb2fc834d6e9058e89c825efdc55"
+dependencies = [
+ "cfg-if",
+ "windows-link 0.2.1",
+]
+
 [[package]]
 name = "libm"
 version = "0.2.16"
@@ -3660,6 +3818,12 @@ dependencies = [
  "hashbrown 0.17.1",
 ]
 
+[[package]]
+name = "lru-slab"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "112b39cec0b298b6c1999fee3e31427f74f676e4cb9879ed1a121b43661a4154"
+
 [[package]]
 name = "mac_address"
 version = "1.1.8"
@@ -3670,6 +3834,15 @@ dependencies = [
  "winapi",
 ]
 
+[[package]]
+name = "mach2"
+version = "0.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d640282b302c0bb0a2a8e0233ead9035e3bed871f0b7e81fe4a1ec829765db44"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "markup5ever"
 version = "0.38.0"
@@ -3736,6 +3909,16 @@ version = "0.3.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6877bb514081ee2a7ff5ef9de3281f14a4dd4bceac4c09388074a6b5df8a139a"
 
+[[package]]
+name = "mime_guess"
+version = "2.0.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f7c44f8e672c00fe5308fa235f821cb4198414e1c77935c1ab6948d3fd78550e"
+dependencies = [
+ "mime",
+ "unicase",
+]
+
 [[package]]
 name = "minimal-lexical"
 version = "0.2.1"
@@ -3795,6 +3978,20 @@ dependencies = [
  "windows-sys 0.61.2",
 ]
 
+[[package]]
+name = "ndk"
+version = "0.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2076a31b7010b17a38c01907c45b945e8f11495ee4dd588309718901b1f7a5b7"
+dependencies = [
+ "bitflags 2.13.0",
+ "jni-sys 0.3.1",
+ "log",
+ "ndk-sys 0.5.0+25.2.9519653",
+ "num_enum",
+ "thiserror 1.0.69",
+]
+
 [[package]]
 name = "ndk"
 version = "0.9.0"
@@ -3804,12 +4001,27 @@ dependencies = [
  "bitflags 2.13.0",
  "jni-sys 0.3.1",
  "log",
- "ndk-sys",
+ "ndk-sys 0.6.0+11769913",
  "num_enum",
  "raw-window-handle",
  "thiserror 1.0.69",
 ]
 
+[[package]]
+name = "ndk-context"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "27b02d87554356db9e9a873add8782d4ea6e3e58ea071a9adb9a2e8ddb884a8b"
+
+[[package]]
+name = "ndk-sys"
+version = "0.5.0+25.2.9519653"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8c196769dd60fd4f363e11d948139556a344e79d451aeb2fa2fd040738ef7691"
+dependencies = [
+ "jni-sys 0.3.1",
+]
+
 [[package]]
 name = "ndk-sys"
 version = "0.6.0+11769913"
@@ -3966,7 +4178,7 @@ version = "0.7.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "680998035259dcfcafe653688bf2aa6d3e2dc05e98be6ab46afb089dc84f1df8"
 dependencies = [
- "proc-macro-crate 3.5.0",
+ "proc-macro-crate 1.3.1",
  "proc-macro2",
  "quote",
  "syn 2.0.117",
@@ -4186,6 +4398,29 @@ dependencies = [
  "memchr",
 ]
 
+[[package]]
+name = "oboe"
+version = "0.6.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e8b61bebd49e5d43f5f8cc7ee2891c16e0f41ec7954d36bcb6c14c5e0de867fb"
+dependencies = [
+ "jni",
+ "ndk 0.8.0",
+ "ndk-context",
+ "num-derive",
+ "num-traits",
+ "oboe-sys",
+]
+
+[[package]]
+name = "oboe-sys"
+version = "0.6.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6c8bb09a4a2b1d668170cfe0a7d5bc103f8999fb316c98099b6a9939c9f2e79d"
+dependencies = [
+ "cc",
+]
+
 [[package]]
 name = "once_cell"
 version = "1.21.4"
@@ -4229,7 +4464,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7d8fae84b431384b68627d0f9b3b1245fcf9f46f6c0e3dc902e9dce64edd1967"
 dependencies = [
  "libc",
- "windows-sys 0.45.0",
+ "windows-sys 0.61.2",
 ]
 
 [[package]]
@@ -4663,15 +4898,6 @@ dependencies = [
  "toml_edit 0.20.7",
 ]
 
-[[package]]
-name = "proc-macro-crate"
-version = "3.5.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e67ba7e9b2b56446f1d419b1d807906278ffa1a658a8a5d8a39dcb1f5a78614f"
-dependencies = [
- "toml_edit 0.25.12+spec-1.1.0",
-]
-
 [[package]]
 name = "proc-macro-error"
 version = "1.0.4"
@@ -4807,6 +5033,61 @@ dependencies = [
  "memchr",
 ]
 
+[[package]]
+name = "quinn"
+version = "0.11.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0c1a41e437b6bbd489372cd4971de128e85c855f56c57f283d20ff016cf7c0a8"
+dependencies = [
+ "bytes",
+ "cfg_aliases 0.2.1",
+ "pin-project-lite",
+ "quinn-proto",
+ "quinn-udp",
+ "rustc-hash",
+ "rustls",
+ "socket2",
+ "thiserror 2.0.18",
+ "tokio",
+ "tracing",
+ "web-time",
+]
+
+[[package]]
+name = "quinn-proto"
+version = "0.11.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4fcb935c5bec503c2f0e306bdd3e58bb9029dcb14fa8d9ac76e3a5256ac0763e"
+dependencies = [
+ "bytes",
+ "getrandom 0.3.4",
+ "lru-slab",
+ "rand 0.9.4",
+ "ring",
+ "rustc-hash",
+ "rustls",
+ "rustls-pki-types",
+ "slab",
+ "thiserror 2.0.18",
+ "tinyvec",
+ "tracing",
+ "web-time",
+]
+
+[[package]]
+name = "quinn-udp"
+version = "0.5.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "addec6a0dcad8a8d96a771f815f0eaf55f9d1805756410b39f5fa81332574cbd"
+dependencies = [
+ "cfg_aliases 0.2.1",
+ "libc",
+ "once_cell",
+ "socket2",
+ "tracing",
+ "windows-sys 0.59.0",
+]
+
 [[package]]
 name = "quote"
 version = "1.0.45"
@@ -4928,7 +5209,7 @@ dependencies = [
  "compact_str",
  "critical-section",
  "hashbrown 0.17.1",
- "itertools",
+ "itertools 0.14.0",
  "kasuari",
  "lru",
  "palette",
@@ -5010,7 +5291,7 @@ dependencies = [
  "hashbrown 0.17.1",
  "indoc",
  "instability",
- "itertools",
+ "itertools 0.14.0",
  "line-clipping",
  "ratatui-core",
  "serde",
@@ -5036,7 +5317,7 @@ dependencies = [
  "built",
  "cfg-if",
  "interpolate_name",
- "itertools",
+ "itertools 0.14.0",
  "libc",
  "libfuzzer-sys",
  "log",
@@ -5176,6 +5457,46 @@ version = "0.8.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d6f6ff9a378485b298a5286656da665ba74413d36db0979633275d2e708145d4"
 
+[[package]]
+name = "reqwest"
+version = "0.12.28"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "eddd3ca559203180a307f12d114c268abf583f59b03cb906fd0b3ff8646c1147"
+dependencies = [
+ "base64 0.22.1",
+ "bytes",
+ "futures-core",
+ "futures-util",
+ "http",
+ "http-body",
+ "http-body-util",
+ "hyper",
+ "hyper-rustls",
+ "hyper-util",
+ "js-sys",
+ "log",
+ "mime_guess",
+ "percent-encoding",
+ "pin-project-lite",
+ "quinn",
+ "rustls",
+ "rustls-pki-types",
+ "serde",
+ "serde_json",
+ "serde_urlencoded",
+ "sync_wrapper",
+ "tokio",
+ "tokio-rustls",
+ "tower",
+ "tower-http",
+ "tower-service",
+ "url",
+ "wasm-bindgen",
+ "wasm-bindgen-futures",
+ "web-sys",
+ "webpki-roots",
+]
+
 [[package]]
 name = "reqwest"
 version = "0.13.4"
@@ -5216,6 +5537,32 @@ version = "0.8.53"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "47b34b781b31e5d73e9fbc8689c70551fd1ade9a19e3e28cfec8580a79290cc4"
 
+[[package]]
+name = "ring"
+version = "0.17.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a4689e6c2294d81e88dc6261c768b63bc4fcdb852be6d1352498b114f61383b7"
+dependencies = [
+ "cc",
+ "cfg-if",
+ "getrandom 0.2.17",
+ "libc",
+ "untrusted",
+ "windows-sys 0.52.0",
+]
+
+[[package]]
+name = "rodio"
+version = "0.19.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6006a627c1a38d37f3d3a85c6575418cfe34a5392d60a686d0071e1c8d427acb"
+dependencies = [
+ "cpal",
+ "hound",
+ "symphonia",
+ "thiserror 1.0.69",
+]
+
 [[package]]
 name = "rustc-demangle"
 version = "0.1.27"
@@ -5263,6 +5610,41 @@ dependencies = [
  "windows-sys 0.61.2",
 ]
 
+[[package]]
+name = "rustls"
+version = "0.23.41"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6b92b125634d9b795e7beca796cc790df15a7fb38323bf3196fda83292d06b1f"
+dependencies = [
+ "once_cell",
+ "ring",
+ "rustls-pki-types",
+ "rustls-webpki",
+ "subtle",
+ "zeroize",
+]
+
+[[package]]
+name = "rustls-pki-types"
+version = "1.14.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "30a7197ae7eb376e574fe940d068c30fe0462554a3ddbe4eca7838e049c937a9"
+dependencies = [
+ "web-time",
+ "zeroize",
+]
+
+[[package]]
+name = "rustls-webpki"
+version = "0.103.13"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "61c429a8649f110dddef65e2a5ad240f747e85f7758a6bccc7e5777bd33f756e"
+dependencies = [
+ "ring",
+ "rustls-pki-types",
+ "untrusted",
+]
+
 [[package]]
 name = "rustversion"
 version = "1.0.22"
@@ -5480,6 +5862,18 @@ dependencies = [
  "serde_core",
 ]
 
+[[package]]
+name = "serde_urlencoded"
+version = "0.7.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d3491c14715ca2294c4d6a88f15e84739788c1d030eed8c110436aafdaa2f3fd"
+dependencies = [
+ "form_urlencoded",
+ "itoa",
+ "ryu",
+ "serde",
+]
+
 [[package]]
 name = "serde_with"
 version = "3.21.0"
@@ -5596,6 +5990,12 @@ version = "1.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "dc6fe69c597f9c37bfeeeeeb33da3530379845f10be461a66d16d03eca2ded77"
 
+[[package]]
+name = "shlex"
+version = "1.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0fda2ff0d084019ba4d7c6f371c95d8fd75ce3524c3cb8fb653a3023f6323e64"
+
 [[package]]
 name = "shlex"
 version = "2.0.1"
@@ -5690,7 +6090,7 @@ checksum = "aac18da81ebbf05109ab275b157c22a653bb3c12cf884450179942f81bcbf6c3"
 dependencies = [
  "bytemuck",
  "js-sys",
- "ndk",
+ "ndk 0.9.0",
  "objc2",
  "objc2-core-foundation",
  "objc2-core-graphics",
@@ -5793,6 +6193,12 @@ dependencies = [
  "syn 2.0.117",
 ]
 
+[[package]]
+name = "subtle"
+version = "2.6.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "13c2bddecc57b384dee18652358fb23172facb8a2c51ccc10d74c157bdea3292"
+
 [[package]]
 name = "swift-rs"
 version = "1.0.7"
@@ -5804,6 +6210,55 @@ dependencies = [
  "serde_json",
 ]
 
+[[package]]
+name = "symphonia"
+version = "0.5.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5773a4c030a19d9bfaa090f49746ff35c75dfddfa700df7a5939d5e076a57039"
+dependencies = [
+ "lazy_static",
+ "symphonia-bundle-mp3",
+ "symphonia-core",
+ "symphonia-metadata",
+]
+
+[[package]]
+name = "symphonia-bundle-mp3"
+version = "0.5.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4872dd6bb56bf5eac799e3e957aa1981086c3e613b27e0ac23b176054f7c57ed"
+dependencies = [
+ "lazy_static",
+ "log",
+ "symphonia-core",
+ "symphonia-metadata",
+]
+
+[[package]]
+name = "symphonia-core"
+version = "0.5.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ea00cc4f79b7f6bb7ff87eddc065a1066f3a43fe1875979056672c9ef948c2af"
+dependencies = [
+ "arrayvec",
+ "bitflags 1.3.2",
+ "bytemuck",
+ "lazy_static",
+ "log",
+]
+
+[[package]]
+name = "symphonia-metadata"
+version = "0.5.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "36306ff42b9ffe6e5afc99d49e121e0bd62fe79b9db7b9681d48e29fa19e6b16"
+dependencies = [
+ "encoding_rs",
+ "lazy_static",
+ "log",
+ "symphonia-core",
+]
+
 [[package]]
 name = "syn"
 version = "1.0.109"
@@ -5901,8 +6356,8 @@ dependencies = [
  "jni",
  "libc",
  "log",
- "ndk",
- "ndk-sys",
+ "ndk 0.9.0",
+ "ndk-sys 0.6.0+11769913",
  "objc2",
  "objc2-app-kit",
  "objc2-foundation",
@@ -5973,7 +6428,7 @@ dependencies = [
  "percent-encoding",
  "plist",
  "raw-window-handle",
- "reqwest",
+ "reqwest 0.13.4",
  "serde",
  "serde_json",
  "serde_repr",
@@ -6444,6 +6899,16 @@ dependencies = [
  "syn 2.0.117",
 ]
 
+[[package]]
+name = "tokio-rustls"
+version = "0.26.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1729aa945f29d91ba541258c8df89027d5792d85a8841fb65e8bf0f4ede4ef61"
+dependencies = [
+ "rustls",
+ "tokio",
+]
+
 [[package]]
 name = "tokio-util"
 version = "0.7.18"
@@ -6562,18 +7027,6 @@ dependencies = [
  "winnow 0.7.15",
 ]
 
-[[package]]
-name = "toml_edit"
-version = "0.25.12+spec-1.1.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d2153edc6955a6c354fad8f5efd38b6a8769bdccf9fe50f8e1329f81b0baa5d7"
-dependencies = [
- "indexmap 2.14.0",
- "toml_datetime 1.1.1+spec-1.1.0",
- "toml_parser",
- "winnow 1.0.3",
-]
-
 [[package]]
 name = "toml_parser"
 version = "1.1.2+spec-1.1.0"
@@ -6840,6 +7293,12 @@ dependencies = [
  "unic-common",
 ]
 
+[[package]]
+name = "unicase"
+version = "2.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dbc4bc3a9f746d862c45cb89d705aa10f187bb96c76001afab07a0d35ce60142"
+
 [[package]]
 name = "unicode-bom"
 version = "2.0.3"
@@ -6873,7 +7332,7 @@ version = "2.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "16b380a1238663e5f8a691f9039c73e1cdae598a30e9855f541d29b08b53e9a5"
 dependencies = [
- "itertools",
+ "itertools 0.14.0",
  "unicode-segmentation",
  "unicode-width",
 ]
@@ -6890,6 +7349,12 @@ version = "0.2.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ebc1c04c71510c7f702b52b7c350734c9ff1295c464a03335b00bb84fc54f853"
 
+[[package]]
+name = "untrusted"
+version = "0.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8ecb6da28b8a351d773b68d5825ac39017e680750f980f3a1a85cd8dd28a47c1"
+
 [[package]]
 name = "url"
 version = "2.5.8"
@@ -7235,6 +7700,16 @@ dependencies = [
  "wasm-bindgen",
 ]
 
+[[package]]
+name = "web-time"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5a6580f308b1fad9207618087a65c04e7a10bc77e02c8e84e9b00dd4b12fa0bb"
+dependencies = [
+ "js-sys",
+ "wasm-bindgen",
+]
+
 [[package]]
 name = "web_atoms"
 version = "0.2.4"
@@ -7291,6 +7766,15 @@ dependencies = [
  "system-deps",
 ]
 
+[[package]]
+name = "webpki-roots"
+version = "1.0.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bf85cb06032201fa7c6f829d7db5a7e5aa45bcc0655327713065f6f0576731bf"
+dependencies = [
+ "rustls-pki-types",
+]
+
 [[package]]
 name = "webview2-com"
 version = "0.38.2"
@@ -7461,6 +7945,16 @@ dependencies = [
  "windows-version",
 ]
 
+[[package]]
+name = "windows"
+version = "0.54.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9252e5725dbed82865af151df558e754e4a3c2c30818359eb17465f1346a1b49"
+dependencies = [
+ "windows-core 0.54.0",
+ "windows-targets 0.52.6",
+]
+
 [[package]]
 name = "windows"
 version = "0.58.0"
@@ -7493,6 +7987,16 @@ dependencies = [
  "windows-core 0.61.2",
 ]
 
+[[package]]
+name = "windows-core"
+version = "0.54.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "12661b9c89351d684a50a8a643ce5f608e20243b9fb84687800163429f161d65"
+dependencies = [
+ "windows-result 0.1.2",
+ "windows-targets 0.52.6",
+]
+
 [[package]]
 name = "windows-core"
 version = "0.58.0"
@@ -7596,6 +8100,15 @@ dependencies = [
  "windows-link 0.1.3",
 ]
 
+[[package]]
+name = "windows-result"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5e383302e8ec8515204254685643de10811af0ed97ea37210dc26fb0032647f8"
+dependencies = [
+ "windows-targets 0.52.6",
+]
+
 [[package]]
 name = "windows-result"
 version = "0.2.0"
@@ -7906,9 +8419,6 @@ name = "winnow"
 version = "1.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0592e1c9d151f854e6fd382574c3a0855250e1d9b2f99d9281c6e6391af352f1"
-dependencies = [
- "memchr",
-]
 
 [[package]]
 name = "winreg"
@@ -8067,7 +8577,7 @@ dependencies = [
  "javascriptcore-rs",
  "jni",
  "libc",
- "ndk",
+ "ndk 0.9.0",
  "objc2",
  "objc2-app-kit",
  "objc2-core-foundation",
@@ -8229,6 +8739,12 @@ dependencies = [
  "synstructure",
 ]
 
+[[package]]
+name = "zeroize"
+version = "1.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e13c156562582aa81c60cb29407084cdb54c4164760106ab78e6c5b0858cf64e"
+
 [[package]]
 name = "zerotrie"
 version = "0.2.4"
diff --git a/src-tauri/Cargo.toml b/src-tauri/Cargo.toml
index 0c9ae7c..7d86b98 100644
--- a/src-tauri/Cargo.toml
+++ b/src-tauri/Cargo.toml
@@ -20,7 +20,7 @@ uuid = "1"
 # Pinned to a published claude-commander release for reproducible builds. To
 # develop against a local checkout instead, add a gitignored `.cargo/config.toml`
 # with `paths = ["../claude-commander"]` — see CONTRIBUTING.md.
-claude-commander = { git = "https://github.com/sizeak/claude-commander", tag = "v0.17.0" }
+claude-commander = { git = "https://github.com/sizeak/claude-commander", tag = "v0.21.0" }
 futures = "0.3.32"
 tracing = "0.1.44"
 chrono = "0.4.45"
diff --git a/src-tauri/src/main.rs b/src-tauri/src/main.rs
index 1bd3d0b..82c4862 100644
--- a/src-tauri/src/main.rs
+++ b/src-tauri/src/main.rs
@@ -114,7 +114,9 @@ fn main() {
             review::read_review_image,
             review::create_comment,
             review::delete_comment,
+            review::toggle_file_reviewed,
             review::apply_comments,
+            polling::refresh_pr_status,
             pty::attach,
             pty::write_pty,
             pty::resize_pty,
diff --git a/src-tauri/src/polling.rs b/src-tauri/src/polling.rs
index f3053f7..e389424 100644
--- a/src-tauri/src/polling.rs
+++ b/src-tauri/src/polling.rs
@@ -3,6 +3,7 @@
 //! branches (blocked reasons surfaced on project headers).
 
 use std::collections::HashMap;
+use std::sync::atomic::{AtomicBool, Ordering};
 use std::sync::{LazyLock, Mutex};
 use std::time::Duration;
 
@@ -28,6 +29,33 @@ pub fn spawn_polling_loops() {
     spawn_project_pull_loop();
 }
 
+/// True while a manual PR-status refresh is running, so a second trigger is a
+/// no-op rather than stacking another `gh` fan-out (e.g. a double-Enter on the
+/// palette command). Mirrors claude-commander's debounce of the same action.
+static MANUAL_PR_REFRESH_IN_FLIGHT: AtomicBool = AtomicBool::new(false);
+
+/// Palette "Refresh PR status": run one PR-status sweep immediately instead of
+/// waiting for the periodic loop. Debounced — returns early if a manual refresh
+/// is already in flight. The sidebar reflects the result on its next loop tick.
+#[tauri::command]
+pub async fn refresh_pr_status() -> Result<(), String> {
+    if MANUAL_PR_REFRESH_IN_FLIGHT.swap(true, Ordering::SeqCst) {
+        return Ok(());
+    }
+    let outcome = run_manual_pr_refresh().await;
+    MANUAL_PR_REFRESH_IN_FLIGHT.store(false, Ordering::SeqCst);
+    outcome
+}
+
+async fn run_manual_pr_refresh() -> Result<(), String> {
+    if !is_gh_available().await {
+        return Err("gh CLI not available".to_string());
+    }
+    let svc = service().await?;
+    poll_prs_once(svc).await;
+    Ok(())
+}
+
 /// Every `pr_check_interval_secs`: check the PR for each session's branch via
 /// `gh`, and persist the result exactly the way the TUI does (including
 /// clearing on authoritative not-found, preserving on transient failure, and
diff --git a/src-tauri/src/review.rs b/src-tauri/src/review.rs
index cbddea8..1870543 100644
--- a/src-tauri/src/review.rs
+++ b/src-tauri/src/review.rs
@@ -85,6 +85,29 @@ pub async fn read_review_image(id: String, path: String, side: String) -> Result
     .await
 }
 
+/// Toggle the "reviewed" (read) mark on a file in a session's review, returning
+/// the file's new reviewed state. The mark is persisted and shared with the TUI,
+/// and is keyed on the file's content so it self-invalidates if the file later
+/// changes. Re-opens the snapshot to resolve the live `FileDiff` for `path`
+/// (a display path) since the mark store hashes the diff.
+#[tauri::command]
+pub async fn toggle_file_reviewed(id: String, path: String) -> Result<bool, String> {
+    let id = parse_session_id(&id)?;
+    with_service(move |svc| async move {
+        let snapshot = svc.open_review(&id).await.map_err(|e| e.to_string())?;
+        let file = snapshot
+            .diff
+            .files
+            .iter()
+            .find(|f| f.display_path() == path.as_str())
+            .ok_or_else(|| format!("file not in review diff: {path}"))?;
+        svc.toggle_file_reviewed(&id, file)
+            .await
+            .map_err(|e| e.to_string())
+    })
+    .await
+}
+
 /// Apply staged comments: composes the markdown brief and injects a pointer
 /// prompt into the session's pane (delivery gated on agent state). May block
 /// up to the library's hold timeout while a permission prompt clears.
diff --git a/src-tauri/src/service.rs b/src-tauri/src/service.rs
index 66b4481..63ba6a8 100644
--- a/src-tauri/src/service.rs
+++ b/src-tauri/src/service.rs
@@ -4,6 +4,7 @@ use std::sync::Arc;
 
 use claude_commander::api::CommanderService;
 use claude_commander::session::{ProjectId, SessionId};
+use claude_commander::telemetry::FrontendInfo;
 use tokio::sync::OnceCell;
 
 static SERVICE: OnceCell<Arc<CommanderService>> = OnceCell::const_new();
@@ -12,7 +13,8 @@ pub async fn service() -> Result<&'static Arc<CommanderService>, String> {
     SERVICE
         .get_or_try_init(|| async {
             let config = claude_commander::Config::load().map_err(|e| e.to_string())?;
-            CommanderService::for_cli(config)
+            let frontend = FrontendInfo::new("cc-gui", env!("CARGO_PKG_VERSION"));
+            CommanderService::for_cli(config, frontend)
                 .map(Arc::new)
                 .map_err(|e| e.to_string())
         })
diff --git a/src/help.ts b/src/help.ts
index 1599841..3d27357 100644
--- a/src/help.ts
+++ b/src/help.ts
@@ -30,6 +30,8 @@ const HELP_SECTIONS: [string, [string, string][]][] = [
     [
       ["Click line", "Select for comment (shift-click extends, Esc clears)"],
       ["Cmd/Ctrl+Enter", "Save comment"],
+      ["↑/↓ or Ctrl-P/N", "Previous / next file"],
+      ["○ / ✓", "Toggle file reviewed (bands the row)"],
       ["Apply (n)", "Send staged comments to the agent"],
       ["↻ / Esc", "Refresh diff / close"],
     ],
diff --git a/src/main.ts b/src/main.ts
index bce1933..00b7aec 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -2761,6 +2761,14 @@ registerPaletteProvider(() => [
     hint: "command",
     action: () => void deleteMergedSessions(),
   },
+  {
+    label: "Refresh PR status",
+    hint: "command",
+    action: () => {
+      toast("Refreshing PR status…");
+      void invoke("refresh_pr_status").catch((e) => toast(`${e}`, "error"));
+    },
+  },
   {
     label: "Attach commander session",
     hint: "command",
diff --git a/src/playwright/iwft/network/TauriSimulator.testHelper.ts b/src/playwright/iwft/network/TauriSimulator.testHelper.ts
index 5390596..2519e98 100644
--- a/src/playwright/iwft/network/TauriSimulator.testHelper.ts
+++ b/src/playwright/iwft/network/TauriSimulator.testHelper.ts
@@ -23,6 +23,7 @@ class TauriSimulator {
   private snapshot: Snapshot;
   private reviews: Record<string, ReviewSnapshot>;
   private comments: Record<string, Comment[]>; // by session id
+  private reviewed: Record<string, Set<string>>; // reviewed file paths, by session id
   private config: Record<string, unknown>;
   private keybindings: Record<string, string[]>;
   private customThemes: unknown[];
@@ -43,8 +44,10 @@ class TauriSimulator {
     this.keybindings = seed.keybindings ?? {};
     this.customThemes = seed.customThemes ?? [];
     this.comments = {};
+    this.reviewed = {};
     for (const [id, review] of Object.entries(seed.reviews)) {
       this.comments[id] = [...review.comments];
+      this.reviewed[id] = new Set(review.reviewed);
     }
     this.handle = this.handle.bind(this);
   }
@@ -59,6 +62,12 @@ class TauriSimulator {
     return this.comments[sessionId] ?? [];
   }
 
+  /** Reviewed file paths the fake now holds for a session — the state a
+   *  reviewed-toggle test asserts against. */
+  getReviewed(sessionId: string): string[] {
+    return [...(this.reviewed[sessionId] ?? [])];
+  }
+
   /** Flattened live sessions across all groups — the state a sidebar test asserts. */
   getSessions(): SessionRow[] {
     return this.snapshot.groups.flatMap((g) => g.sessions);
@@ -170,8 +179,14 @@ class TauriSimulator {
         return this.createComment(args as unknown as CreateCommentArgs);
       case "delete_comment":
         return this.deleteComment(args.id as string, args.commentId as string);
+      case "toggle_file_reviewed":
+        return this.toggleFileReviewed(args.id as string, args.path as string);
       case "apply_comments":
         return this.applyComments(args.id as string);
+      case "refresh_pr_status":
+        // The native command kicks the PR-poll loop; the fake has no live PR
+        // state to refresh, so it's a no-op (matches the UI: a background nudge).
+        return null;
       default:
         // Unhandled commands resolve to null rather than throwing, so an
         // unstubbed call surfaces as a UI no-op, not a crashed boot.
@@ -272,7 +287,24 @@ class TauriSimulator {
 
   private openReview(id: string): ReviewSnapshot {
     const review = this.reviews[id];
-    return { base: review.base, diff: review.diff, comments: this.comments[id] ?? [] };
+    return {
+      base: review.base,
+      diff: review.diff,
+      comments: this.comments[id] ?? [],
+      reviewed: [...(this.reviewed[id] ?? [])],
+    };
+  }
+
+  /** Toggle a file's reviewed mark and return its new state, mirroring the
+   *  backend's persisted toggle. */
+  private toggleFileReviewed(id: string, path: string): boolean {
+    const marks = this.reviewed[id] ?? (this.reviewed[id] = new Set());
+    if (marks.has(path)) {
+      marks.delete(path);
+      return false;
+    }
+    marks.add(path);
+    return true;
   }
 
   private createComment(a: CreateCommentArgs): null {
diff --git a/src/playwright/iwft/network/seed.testHelper.ts b/src/playwright/iwft/network/seed.testHelper.ts
index 013a8a2..844320b 100644
--- a/src/playwright/iwft/network/seed.testHelper.ts
+++ b/src/playwright/iwft/network/seed.testHelper.ts
@@ -83,6 +83,7 @@ export function makeReview(over: Partial<ReviewSnapshot> = {}): ReviewSnapshot {
       ],
     },
     comments: [],
+    reviewed: [],
     ...over,
   };
 }
diff --git a/src/playwright/iwft/scenarios/review/review.iwft.ts b/src/playwright/iwft/scenarios/review/review.iwft.ts
index 3490e28..047d87e 100644
--- a/src/playwright/iwft/scenarios/review/review.iwft.ts
+++ b/src/playwright/iwft/scenarios/review/review.iwft.ts
@@ -1,5 +1,6 @@
 import { test, expect } from "../../support/fixture.testHelper";
-import { SESSION_ID } from "../../network/seed.testHelper";
+import { defaultSeed, makeReview, SESSION_ID } from "../../network/seed.testHelper";
+import type { FileDiff } from "../../../review/model";
 
 test("comment renders after saving, and the fake stores the derived draft", async ({ review }) => {
   await review.selectLine("beta new");
@@ -44,3 +45,55 @@ test("a comment can be deleted", async ({ review }) => {
   await review.deleteFirstComment();
   await expect(review.commentBodies()).toHaveCount(0);
 });
+
+test("toggling a file reviewed bands its row and persists to the fake", async ({ review }) => {
+  await expect(review.reviewedRows()).toHaveCount(0);
+
+  await review.toggleReviewed("notes.txt");
+  await expect(review.reviewedRows()).toHaveCount(1);
+  expect(await review.storedReviewed(SESSION_ID)).toEqual(["notes.txt"]);
+
+  // Toggling again clears the mark.
+  await review.toggleReviewed("notes.txt");
+  await expect(review.reviewedRows()).toHaveCount(0);
+  expect(await review.storedReviewed(SESSION_ID)).toEqual([]);
+});
+
+test.describe("with two files", () => {
+  const emptyFile = (name: string): FileDiff => ({
+    old_path: name,
+    new_path: name,
+    status: "modified",
+    added: 1,
+    removed: 0,
+    hunks: [],
+    binary: null,
+  });
+  test.use({
+    seed: {
+      ...defaultSeed(),
+      reviews: {
+        [SESSION_ID]: makeReview({
+          diff: { files: [emptyFile("alpha.txt"), emptyFile("zeta.txt")] },
+        }),
+      },
+    },
+  });
+
+  test("Ctrl-N/P and arrows move between files", async ({ review }) => {
+    // refresh() selects the first file by default.
+    await expect.poll(() => review.activeFileName()).toBe("alpha.txt");
+
+    await review.pressFileNav("ArrowDown");
+    await expect.poll(() => review.activeFileName()).toBe("zeta.txt");
+
+    await review.pressFileNav("Control+p");
+    await expect.poll(() => review.activeFileName()).toBe("alpha.txt");
+
+    await review.pressFileNav("Control+n");
+    await expect.poll(() => review.activeFileName()).toBe("zeta.txt");
+
+    await review.pressFileNav("ArrowUp");
+    await expect.poll(() => review.activeFileName()).toBe("alpha.txt");
+  });
+});
diff --git a/src/playwright/iwft/scenarios/settings/settings.iwft.ts b/src/playwright/iwft/scenarios/settings/settings.iwft.ts
index f497d1f..8c93014 100644
--- a/src/playwright/iwft/scenarios/settings/settings.iwft.ts
+++ b/src/playwright/iwft/scenarios/settings/settings.iwft.ts
@@ -61,3 +61,30 @@ test("valid edits round-trip through save_config", async ({ settings }) => {
 // NB: the data-kind="number" branch's NaN→toast path is unreachable from the UI —
 // <input type=number> sanitizes non-numeric input, so collect() never sees NaN.
 // Invalid-number abort is therefore not exercised here (it can't happen in-browser).
+
+test.describe("telemetry opt-out", () => {
+  test.use({
+    seed: {
+      snapshot: makeSnapshot(),
+      reviews: {},
+      config: { telemetry: { enabled: true, endpoint: null, token: null } },
+    },
+  });
+
+  test("renders a checkbox; opting out persists enabled:false and keeps endpoint/token", async ({
+    settings,
+  }) => {
+    await settings.open();
+
+    // The telemetry object surfaces as a friendly checkbox, not a JSON blob.
+    expect(await settings.fieldKind("telemetry")).toBe("telemetry-enabled");
+    expect(await settings.fieldInputType("telemetry")).toBe("checkbox");
+
+    await settings.setChecked("telemetry", false);
+    await settings.save();
+
+    expect(await settings.savedConfig()).toEqual({
+      telemetry: { enabled: false, endpoint: null, token: null },
+    });
+  });
+});
diff --git a/src/playwright/pageObjects/ReviewPanePageObject.testHelper.ts b/src/playwright/pageObjects/ReviewPanePageObject.testHelper.ts
index 9c56cbc..48c2447 100644
--- a/src/playwright/pageObjects/ReviewPanePageObject.testHelper.ts
+++ b/src/playwright/pageObjects/ReviewPanePageObject.testHelper.ts
@@ -6,6 +6,7 @@ import type { Comment } from "../../review/model";
 // review surface is well-identified, so no data-test attributes are needed yet.
 export class ReviewPanePageObject extends AppPageObject {
   private readonly pane = this.page.locator("#review");
+  private readonly files = this.page.locator("#review-files");
   private readonly diff = this.page.locator("#review-diff");
   private readonly applyButton = this.page.locator("#review-apply");
   private readonly status = this.page.locator("#review-status");
@@ -78,4 +79,41 @@ export class ReviewPanePageObject extends AppPageObject {
       sessionId,
     );
   }
+
+  // ----- file tree: navigation + reviewed marks -----
+
+  /** A file-tree row by its basename (the `.file-path` label). */
+  fileRow(basename: string): Locator {
+    return this.files.locator(".review-file", { hasText: basename });
+  }
+
+  /** Toggle a file's reviewed mark via its ○/✓ control. */
+  toggleReviewed(basename: string): Promise<void> {
+    return this.step(`toggleReviewed: ${basename}`, () =>
+      this.fileRow(basename).locator(".file-reviewed-toggle").click(),
+    );
+  }
+
+  /** Rows currently banded as reviewed. */
+  reviewedRows(): Locator {
+    return this.files.locator(".review-file.reviewed");
+  }
+
+  /** Basename of the active (selected) file row. */
+  activeFileName(): Promise<string> {
+    return this.files.locator(".review-file.active .file-path").innerText();
+  }
+
+  /** Press a file-navigation key (e.g. "ArrowDown", "Control+n"). */
+  pressFileNav(key: string): Promise<void> {
+    return this.step(`pressFileNav: ${key}`, () => this.page.keyboard.press(key));
+  }
+
+  /** Reviewed file paths the fake now holds for this session. */
+  storedReviewed(sessionId: string): Promise<string[]> {
+    return this.page.evaluate(
+      (id) => (window as unknown as { __CC_SIM__: { getReviewed(i: string): string[] } }).__CC_SIM__.getReviewed(id),
+      sessionId,
+    );
+  }
 }
diff --git a/src/review.ts b/src/review.ts
index 2e220cd..b981159 100644
--- a/src/review.ts
+++ b/src/review.ts
@@ -204,6 +204,9 @@ let sessionId: string | null = null;
 let snapshot: ReviewSnapshot | null = null;
 let selectedFile: string | null = null;
 
+// Display paths of files marked reviewed (read); mirrors the persisted store.
+let reviewed = new Set<string>();
+
 // Line selection for a new comment: inclusive index range into the rendered
 // (selectable) lines of the current file, in click order.
 let selection: { anchor: number; head: number } | null = null;
@@ -238,6 +241,7 @@ async function refresh(): Promise<void> {
   }
   if (sessionId !== id) return; // closed or switched while loading
   snapshot = snap;
+  reviewed = new Set(snap.reviewed);
   tokenCache.clear();
   imageCache.clear();
   baseEl.textContent = `vs ${snap.base}`;
@@ -289,6 +293,39 @@ function currentFile(): FileDiff | undefined {
   return snapshot?.diff.files.find((f) => displayPath(f) === selectedFile);
 }
 
+/** Toggle the reviewed mark for a file (persisted via the backend) and reflect
+ *  it in the local mirror + file list. */
+async function toggleReviewed(path: string): Promise<void> {
+  if (!sessionId) return;
+  let now: boolean;
+  try {
+    now = await invoke<boolean>("toggle_file_reviewed", { id: sessionId, path });
+  } catch (e) {
+    statusEl.textContent = `mark failed: ${e}`;
+    return;
+  }
+  if (now) reviewed.add(path);
+  else reviewed.delete(path);
+  renderFiles();
+}
+
+/** Move the file selection by `delta` (clamped at the ends, no wrap) and keep
+ *  the newly selected row visible. Backs the Ctrl-N/P and arrow navigation. */
+function selectFileByOffset(delta: number): void {
+  const files = snapshot?.diff.files;
+  if (!files || !files.length) return;
+  const cur = files.findIndex((f) => displayPath(f) === selectedFile);
+  const next = Math.min(files.length - 1, Math.max(0, (cur === -1 ? 0 : cur) + delta));
+  const path = displayPath(files[next]);
+  if (path === selectedFile) return;
+  selectedFile = path;
+  clearSelection();
+  renderFiles();
+  renderDiff();
+  highlightCurrentFile();
+  filesEl.querySelector(".review-file.active")?.scrollIntoView({ block: "nearest" });
+}
+
 // ------------------------------------------------------------------- files
 
 function renderFiles(): void {
@@ -317,6 +354,17 @@ function renderFiles(): void {
     const row = document.createElement("div");
     row.className = "review-file";
     row.classList.toggle("active", path === selectedFile);
+    const isReviewed = reviewed.has(path);
+    row.classList.toggle("reviewed", isReviewed);
+
+    const tick = document.createElement("span");
+    tick.className = "file-reviewed-toggle";
+    tick.textContent = isReviewed ? "✓" : "○";
+    tick.title = isReviewed ? "Mark as not reviewed" : "Mark as reviewed";
+    tick.addEventListener("click", (e) => {
+      e.stopPropagation(); // toggling reviewed shouldn't also open the diff
+      void toggleReviewed(path);
+    });
 
     const status = document.createElement("span");
     status.className = `file-status file-${f.status}`;
@@ -344,7 +392,7 @@ function renderFiles(): void {
     removed.textContent = `-${f.removed}`;
     counts.append(added, removed);
 
-    row.append(status, name, counts);
+    row.append(tick, status, name, counts);
     row.addEventListener("click", () => {
       selectedFile = path;
       clearSelection();
@@ -780,3 +828,17 @@ document.addEventListener("keydown", (e) => {
     closeReview();
   }
 });
+
+// File navigation: ↑/↓ and Ctrl-P/Ctrl-N move between files (matching the TUI's
+// review aliases). Skipped while typing in the comment editor.
+document.addEventListener("keydown", (e) => {
+  if (reviewEl.classList.contains("hidden")) return;
+  const t = e.target as HTMLElement;
+  if (t instanceof HTMLTextAreaElement || t instanceof HTMLInputElement) return;
+  let delta: number;
+  if (e.key === "ArrowDown" || (e.ctrlKey && e.key === "n")) delta = 1;
+  else if (e.key === "ArrowUp" || (e.ctrlKey && e.key === "p")) delta = -1;
+  else return;
+  e.preventDefault();
+  selectFileByOffset(delta);
+});
diff --git a/src/review/model.ts b/src/review/model.ts
index 5eb6bbf..424dc1e 100644
--- a/src/review/model.ts
+++ b/src/review/model.ts
@@ -65,6 +65,8 @@ export type ReviewSnapshot = {
   base: string;
   diff: { files: FileDiff[] };
   comments: Comment[];
+  /** Display paths of files marked reviewed (read); their row is banded. */
+  reviewed: string[];
 };
 
 export type ApplyOutcome =
diff --git a/src/settings.ts b/src/settings.ts
index 11c3e01..43eab4f 100644
--- a/src/settings.ts
+++ b/src/settings.ts
@@ -52,6 +52,19 @@ function fieldInput(key: string, value: ConfigValue): HTMLElement {
   return area;
 }
 
+/** A friendly on/off control for the `telemetry` object, surfacing its
+ *  `enabled` flag as a checkbox instead of a raw JSON blob. Endpoint/token
+ *  (self-hoster fields) are left to the config file and preserved on save. */
+function telemetryToggle(): HTMLElement {
+  const tel = (current.telemetry ?? {}) as Record<string, unknown>;
+  const input = document.createElement("input");
+  input.type = "checkbox";
+  input.checked = tel.enabled !== false; // on by default
+  input.dataset.key = "telemetry";
+  input.dataset.kind = "telemetry-enabled";
+  return input;
+}
+
 function collect(): Record<string, ConfigValue> | null {
   const out: Record<string, ConfigValue> = { ...current };
   for (const el of box.querySelectorAll<HTMLInputElement | HTMLTextAreaElement>("[data-key]")) {
@@ -75,6 +88,12 @@ function collect(): Record<string, ConfigValue> | null {
       case "string":
         out[key] = el.value;
         break;
+      case "telemetry-enabled": {
+        // Update only `enabled`, preserving any endpoint/token already set.
+        const prev = (current.telemetry ?? {}) as Record<string, unknown>;
+        out["telemetry"] = { ...prev, enabled: (el as HTMLInputElement).checked };
+        break;
+      }
       case "json":
         try {
           out[key] = JSON.parse(el.value);
@@ -103,6 +122,12 @@ function render(): void {
   grid.className = "settings-grid";
   for (const key of Object.keys(current).sort()) {
     const label = document.createElement("label");
+    if (key === "telemetry") {
+      label.textContent = "telemetry (send anonymous usage)";
+      grid.appendChild(label);
+      grid.appendChild(telemetryToggle());
+      continue;
+    }
     label.textContent = key;
     grid.appendChild(label);
     grid.appendChild(fieldInput(key, current[key]));
diff --git a/src/style.css b/src/style.css
index 66f3cc4..6cdd6c7 100644
--- a/src/style.css
+++ b/src/style.css
@@ -2061,12 +2061,18 @@ body.resizing .panel-resizer {
   display: flex;
   align-items: center;
   gap: 7px;
-  padding: 4px 8px 4px 16px;
+  padding: 4px 8px 4px 12px;
   border-radius: 6px;
   cursor: pointer;
   font-size: 12px;
 }
 
+/* A subtle band marks reviewed (read) files so done rows stand out beyond the
+   ✓ alone. Listed before :hover/.active so those still win on the focused row. */
+.review-file.reviewed {
+  background: color-mix(in srgb, var(--success) 15%, transparent);
+}
+
 .review-file:hover {
   background: var(--border);
 }
@@ -2075,6 +2081,22 @@ body.resizing .panel-resizer {
   background: var(--border-strong);
 }
 
+.file-reviewed-toggle {
+  width: 12px;
+  flex-shrink: 0;
+  text-align: center;
+  color: var(--text-dim);
+  cursor: pointer;
+}
+
+.file-reviewed-toggle:hover {
+  color: var(--text);
+}
+
+.review-file.reviewed .file-reviewed-toggle {
+  color: var(--success);
+}
+
 .file-status {
   width: 12px;
   flex-shrink: 0;