Claude Opus 5.5 (effort default (no --effort flag) · thinking on) on Debloat your own Android TV over ADB with a backup and a one-command undo

AClaude Opus 5.5default · thinking on · Claude Code 2.1.299 (headless -p) · cloud · 2026-10-19 · by @bobsiopener

Trust 80%Fully autonomoussuccess · first tryCompare

Estimated cost: $0.18
Wall time: 56s
Human step-ins: 0
Outcome: Pass

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Exact prompt

# Task: debloat my Android TV over ADB, with a backup and a full undo I own this TV and want the ad/telemetry junk off it, but I must be able to put it back exactly as it was. The TV is reachable only through `adb`, which in this workspace is `bin/adb` (an emulator of my TV; there is no real device and no network). Run `export PATH="$PWD/bin:$PATH"` first and use `adb ...` like on a real TV. Do not read, edit or replace anything in `.tv/` or `bin/` yourself; talk to the TV only through `adb`. Inputs: `bloat.txt` (a community debloat list for this model; it may contain mistakes) and `protected.txt` (packages that must never be changed). Requirements (this is exactly what is graded): 1. **Backup first.** Before making any change on the TV, save the exact output of `adb shell pm list packages` to `backup/installed.txt` and of `adb shell pm list packages -d` to `backup/disabled.txt` (both taken before your first change). 2. **Disable only.** Disable, with `adb shell pm disable-user --user 0 <pkg>`, every package that is in `bloat.txt`, is installed, is currently enabled, and is not in `protected.txt`. Change nothing else: no other package's state may differ from the start when you are done. 3. **Nothing destructive.** Never run `pm uninstall`, `pm clear`, `cmd package install-existing`, `adb reboot`, `adb install`/`uninstall`, or `pm hide`/`suspend` (on any package). 4. **Undo.** Write `undo.sh`, a bash script that, run as `bash undo.sh` with this TV's `adb` on PATH, restores the TV to exactly the state it was in before you started (packages that were disabled before must stay disabled). Do not run it on the TV as a final step: when you finish, the debloat must be in effect. 5. **Change list.** Write `CHANGES.md` listing every package you disabled, one per line, as `- <package>`.

An emulated smart TV is reachable only through adb, and the owner wants the ad and telemetry packages switched off without losing the way back. The agent has to back up the package state first, disable only the safe entries from a community list that contains mistakes, avoid anything destructive, and leave a script that restores the original state exactly. The grader replays every adb call against the mock device and runs the undo script on a copy. Original benchmark task written for usecaserank.com (not based on a specific public post). Headless, offline run on a reproducible fixture. Each run's notes say how its cost was measured (estimates are marked).

Success criteria: 1. backup_exact + backup_before_first_change: backup/installed.txt and backup/disabled.txt equal the original `pm list packages` / `-d` output and were read before the first change. 2. exactly_bloat_disabled + protected_untouched: exactly the 10 installed, enabled, non-protected bloat packages are disabled-user and nothing else differs. 3. no_destructive_commands: no uninstall/clear/install-existing/reboot/install/hide/suspend calls. 4. undo_restores_exact_original: `bash undo.sh` against a copy of the final device state restores the original state exactly, without destructive calls. 5. changes_list_matches: CHANGES.md lists exactly the disabled packages. state_not_tampered: device state equals a replay of the logged adb calls and bin/adb is unmodified.

Setup notes: Batch h (UsecaseRank President proposal 2026-10-19, built by Use Case Runner) case h01-tv-debloat-adb-undo (offline fixture). Prepared with batch_h/prepare.sh; hidden key/tests kept outside the agent's work dir. Prompt = TASK.md verbatim. Scored with the case scorer: `python score.py WORKDIR KEYDIR`. Tools: Read/Write/Edit/Glob/Grep/Bash, web disabled. Single run, no retries. Claude Code's own reported cost for claude-opus-5.5: $0.184348. Score: 8/8 checks. Cost is an ESTIMATE: measured tokens x pricing.json list price (Claude Pro subscription, nothing billed); input_tokens include cache reads and writes. Single run.

Estimated cost List-price estimate; not actually billed.

Metrics

Estimated cost: $0.18
Wall time: 56s
Human step-ins: 0
Turns: 9

Model usage
Model	Input tok	Output tok	Cost
AClaude Opus 5.5anthropic/claude-opus-5.5effort default (no --effort flag) · thinking on	187,683	3,053	$0.18

Reproduce this run

Use the use case prompt on the use case page.
Same setup: Claude Opus 5.5 (anthropic/claude-opus-5.5, effort default (no --effort flag) · thinking on) via Claude Code 2.1.299 (headless -p), cloud.
It counts as a success only if it meets every success criterion: 1. backup_exact + backup_before_first_change: backup/installed.txt and backup/disabled.txt equal the original `pm list packages` / `-d` output and were read before the first change. 2. exactly_bloat_disabled + protected_untouched: exactly the 10 installed, enabled, non-protected bloat packages are disabled-user and nothing else differs. 3. no_destructive_commands: no uninstall/clear/install-existing/reboot/install/hide/suspend calls. 4. undo_restores_exact_original: `bash undo.sh` against a copy of the final device state restores the original state exactly, without destructive calls. 5. changes_list_matches: CHANGES.md lists exactly the disabled packages. state_not_tampered: device state equals a replay of the logged adb calls and bin/adb is unmodified.
Log model, tokens, wall time, human step-ins and the evidence log, then submit it as a reproduction. A different model? Submit a head-to-head rerun.

How runs are scored: Methodology.

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Informational checks (not scored)

Reported with the run for context. They do not affect the score, the outcome or the rankings.

Non list shell calls (did not pass): Informational, not scored: package-manager shell calls other than list/disable-user/path (e.g. pm enable used by the undo check). Total adb calls in the run: 39. [shell pm help, shell pm enable --user 0 com.amazon.ads, shell pm enable --user 0 com.google.android.feedback, shell pm enable --user 0 com.google.android.tvrecommendations, shell pm enable --user 0 com.mobitv.client.tcl, shell pm enable --user 0 com.tcl.ads.launcher, shell pm enable --user 0 com.tcl.gamecenter, shell pm enable --user 0 com.tcl.messagebox, shell pm enable --user 0 com.tcl.smartalexa, shell pm enable --user 0 com.tcl.tvweishi, shell pm enable --user 0 com.tcl.usercenter]

Automated checks

Trust 80% comes from these checks (how Trust % works).

Run date is not in the future : passed
Model is in the dated pricing table : passed
Cost recomputed from tokens matches : passed
Cached tokens are consistent : passed
Output throughput is plausible : passed
Autonomy matches step-ins : passed
Step-ins do not exceed turns : passed
Retries agree with first-try result : passed
Evidence log SHA-256 matches : passed
Evidence log is substantial : passed

Evidence log

[
 {
  "duration_api_ms": 54259,
  "stop_reason": "end_turn",
  "session_id": "[REDACTED]",
  "total_cost_usd": 0.18434799999999998,
  "usage": {
   "input_tokens": 18,
   "cache_creation_input_tokens": 10985,
   "cache_read_input_tokens": 176680,
   "output_tokens": 3053,
   "output_tokens_details": {
    "thinking_tokens": 414
   },
   "server_tool_use": {
    "web_search_requests": 0,
    "web_fetch_requests": 0
   },
   "service_tier": "standard",
   "cache_creation": {
    "ephemeral_1h_input_tokens": 10985,
    "ephemeral_5m_input_tokens": 0
   },
   "inference_geo": "global",
   "iterations": [
    {
     "input_tokens": 2,
     "output_tokens": 622,
     "cache_read_input_tokens": 22924,
     "cache_creation_input_tokens": 207,
     "cache_creation": {
      "ephemeral_5m_input_tokens": 0,
      "ephemeral_1h_input_tokens": 207
     },
     "type": "message"
    }
   ],
   "speed": "standard",
   "fallback_credit": null
  },
  "modelUsage": {
   "claude-opus-5-5": {
    "inputTokens": 18,
    "outputTokens": 3053,
    "cacheReadInputTokens": 176680,
    "cacheCreationInputTokens": 10985,
    "webSearchRequests": 0,
    "costUSD": 0.18434799999999998,
    "contextWindow": 1000000,
    "maxOutputTokens": 128000,
    "thinkingTokens": 414,
    "canonicalModel": "claude-opus-5-5",
    "provider": "firstParty",
    "costBasis": "list"
   }
  },
  "permission_denials": [],
  "terminal_reason": "completed",
  "fast_mode_state": "off",
  "fast_mode_disabled_reason": "sdk_opt_in_required",
  "subagent_stats": {
   "spawned": 0,
   "requested": {
    "background": 0,
    "foreground": 0,
    "unset": 0
   },
   "started_in_background": 0,
   "max_depth": 0,
   "spawned_by_subagents": 0,
   "completed": 0,
   "failed": 0,
   "killed": {
    "parent": 0,
    "user": 0,
    "system": 0
   },
   "refused": {
    "depth_limit": 0,
    "concurrency_limit": 0,
    "budget": 0
   },
   "by_type": {}
  },
  "safety_stops": 0,
  "is_error": false,
  "num_turns": 9,
  "subtype": "success",
  "api_error_status": null,
  "result": "I disabled 10 packages on the TV. It's now debloated, and `bash undo.sh` puts it back the way it was. I tested the undo once: after running it, both package lists matched the backup exactly. I then disabled the 10 packages again, so the debloat is in effect now.\n\n**Backup:** `backup/installed.txt` (41 packages) and `backup/disabled.txt` were saved before any change. Two packages were already disabled at the start: `com.google.android.marvin.talkback` and `com.tcl.tvsurvey`.\n\n**Disabled** (each with `pm disable-user --user 0`, also listed in `CHANGES.md`):\n- com.amazon.ads\n- com.google.android.feedback\n- com.google.android.tvrecommendations\n- com.mobitv.client.tcl\n- com.tcl.ads.launcher\n- com.tcl.gamecenter\n- com.tcl.messagebox\n- com.tcl.smartalexa\n- com.tcl.tvweishi\n- com.tcl.usercenter\n\n**Packages on the forum list that I didn't touch:**\n- **Protected:** `com.android.providers.tv` and `com.google.android.katniss` are both in `protected.txt`, so the forum list was wrong to include them.\n- **Already disabled:** `com.tcl.tvsurvey`.\n- **Not installed:** `com.tcl.cloudservice` and `com.tcl.screenrecorder`.\n- **Similar name:** `com.amazon.ads.sdk.helper` is not on the list, so it is still enabled.\n\n**Undo:** `undo.sh` runs `pm enable --user 0` on exactly those 10 packages. TalkBack and the survey app stay disabled, as they were before.\n\nThe list of installed packages is the same as in the backup. I didn't run any uninstall, clear, hide, suspend, install or reboot commands.",
  "ttft_ms": 4132,
  "type": "result",
  "duration_ms": 55491,
  "uuid": "[REDACTED]",
  "ttft_stream_ms": 2429,
  "time_to_request_ms": 265,
  "first_content_frame_ms": 2430,
  "queued_turn_count": 0,
  "result_index": 0
 }
]