Phone Harness
ShawnPana/phone-harness
Control the user's phone — an iPhone through the Mac's iPhone Mirroring window, an Android over adb, or a rented cloud Android: open apps, tap, type, swipe, read the screen.
Run a Maestro-style performance assessment for hotspots, regressions, and optimization planning
Install Perf Check
$ npx skills add josstei/maestro-orchestrate --skill perf-check -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install josstei/maestro-orchestrate perf-check --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/josstei/maestro-orchestrate.git skills-src && mkdir -p .claude/skills && cp -r skills-src/claude/skills/perf-check .claude/skills/perf-check && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "perf-check" agent skill from https://github.com/josstei/maestro-orchestrate/tree/main/claude/skills/perf-check into .claude/skills/perf-check/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "perf-check", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/josstei/maestro-orchestrate/tree/main/claude/skills/perf-checkType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add josstei/maestro-orchestrate --skill perf-check -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install josstei/maestro-orchestrate perf-check --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/josstei/maestro-orchestrate.git skills-src && mkdir -p .agents/skills && cp -r skills-src/claude/skills/perf-check .agents/skills/perf-check && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "perf-check" agent skill from https://github.com/josstei/maestro-orchestrate/tree/main/claude/skills/perf-check into .agents/skills/perf-check/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "perf-check", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add josstei/maestro-orchestrate --skill perf-check -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install josstei/maestro-orchestrate perf-check --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/josstei/maestro-orchestrate.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/claude/skills/perf-check .cursor/skills/perf-check && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "perf-check" agent skill from https://github.com/josstei/maestro-orchestrate/tree/main/claude/skills/perf-check into .cursor/skills/perf-check/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "perf-check", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/josstei/maestro-orchestrate.git --path claude/skills/perf-check--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add josstei/maestro-orchestrate --skill perf-check -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install josstei/maestro-orchestrate perf-check --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/josstei/maestro-orchestrate.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/claude/skills/perf-check .gemini/skills/perf-check && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "perf-check" agent skill from https://github.com/josstei/maestro-orchestrate/tree/main/claude/skills/perf-check into .gemini/skills/perf-check/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "perf-check", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install josstei/maestro-orchestrate perf-checkInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add josstei/maestro-orchestrate --skill perf-check -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/josstei/maestro-orchestrate.git skills-src && mkdir -p .github/skills && cp -r skills-src/claude/skills/perf-check .github/skills/perf-check && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "perf-check" agent skill from https://github.com/josstei/maestro-orchestrate/tree/main/claude/skills/perf-check into .github/skills/perf-check/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "perf-check", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add josstei/maestro-orchestrate --skill perf-check -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install josstei/maestro-orchestrate perf-check --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/josstei/maestro-orchestrate.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/claude/skills/perf-check .opencode/skills/perf-check && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "perf-check" agent skill from https://github.com/josstei/maestro-orchestrate/tree/main/claude/skills/perf-check into .opencode/skills/perf-check/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "perf-check", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
perf-check- GitHub stars
- 465
- Token cost
- ~221 tokens
- SKILL.md length
- 94 words
- Files
- 1
- Skills in repo
- 17
- Repo updated
- First seen
- Licence
- Apache-2.0
At a glance
Run a Maestro-style performance assessment for hotspots, regressions, and optimization planning
- Works in 5 steps: Define the performance target or pain… → Establish the current baseline from… → Identify likely hotspots, structural… → …
- Tasks that involve Mobile testing and debugging
- SKILL.md covers Protocol, Workflow and Constraints
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Perf Check is an agent skill from josstei/maestro-orchestrate. Run a Maestro-style performance assessment for hotspots, regressions, and optimization planning
Its SKILL.md is about 220 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in Mobile, covering Mobile testing and debugging. The repository describes itself as: Multi-agent orchestration platform for Gemini CLI, Claude Code, Codex, and Qwen Code — 39 specialists, parallel subagents, persistent sessions, and built-in code review…. The licence is Apache-2.0.
When your agent uses it
- Tasks that involve Mobile testing and debugging
Example prompts
- “/perf-check”
Workflow steps
5 steps, taken from the first numbered list in SKILL.md.
- Define the performance target or pain point
- Establish the current baseline from available code, metrics, or reproducible commands
- Identify likely hotspots, structural bottlenecks, and hot loops through code analysis
- Prioritize fixes by expected impact versus implementation cost
- Report measurement gaps when hard evidence is unavailable and propose a validation plan
What it can do on your machine
Read from SKILL.md and the folder at commit 4f5d434. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md.
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Perf Check loads about 221 tokens when it runs. Until then it costs about 27 tokens; SKILL.md has 94 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
The full file from josstei/maestro-orchestrate at commit 4f5d434, republished under its Apache-2.0 licence (© josstei). 94 words, ~221 tokens.
Download SKILL.mdSave it as
.claude/skills/perf-check/SKILL.md (or your agent's skills folder).- name
- perf-check
- description
- Run a Maestro-style performance assessment for hotspots, regressions, and optimization planning
Maestro Perf Check
Call get_skill_content with resources: ["architecture"].
Protocol
Before delegating, call get_skill_content with resources: ["delegation"] and follow the returned methodology.
Workflow
- Define the performance target or pain point
- Establish the current baseline from available code, metrics, or reproducible commands
- Identify likely hotspots, structural bottlenecks, and hot loops through code analysis
- Prioritize fixes by expected impact versus implementation cost
- Report measurement gaps when hard evidence is unavailable and propose a validation plan
Constraints
- Avoid optimization advice that is disconnected from the observed bottleneck
- Distinguish measured issues from inferred ones
© josstei, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
Just SKILL.md in claude/skills/perf-check of josstei/maestro-orchestrate.
Open the folder on GitHubat commit 4f5d434
Compare with similar skills
Perf Check next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Perf Check this skilljosstei/maestro-orchestrate | 465 | — | ~221 | Automated safety check: Pass | Apache-2.0 | |
| Phone HarnessShawnPana/phone-harness | 3.2k | — | ~4.3k | Automated safety check: Pass | MIT | |
| Maa Issue Log AnalysisMaaAssistantArknights/MaaAssistantArknights | 24k | — | ~4k | Automated safety check: Pass | AGPL-3.0 | |
| Mobile QAtloncorp/tlon-apps | 107 | — | ~2.4k | Automated safety check: Pass | MIT | |
| Store Listing Screenshotstherxmv/Telegram-Themer | 119 | — | ~2.5k | Automated safety check: Pass | None | |
| Maestro ImproveReinaMacCredy/maestro | 233 | — | ~1.9k | Automated safety check: Pass | MIT |
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分析 MaaAssistantArknights 上游仓库公开 Issue（https://github.com/MaaAssistantArknights/MaaAssistantArknights/issues/...
Mobile QA
tloncorp/tlon-apps
Run a mobile QA checklist on a physical Android device over adb for tlon-apps, then triage what fails into fixes.
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Manages orchestration session state, tracking, and resumption
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Related
Categories
Questions about Perf Check
What does Perf Check do?
Run a Maestro-style performance assessment for hotspots, regressions, and optimization planning. Perf Check is an agent skill from josstei/maestro-orchestrate.
When should I use Perf Check?
Perf Check fits situations like: tasks that involve Mobile testing and debugging.
How do I install Perf Check in Claude Code?
Run `npx skills add josstei/maestro-orchestrate --skill perf-check -a claude-code`. Or copy the skill folder (claude/skills/perf-check in josstei/maestro-orchestrate) into .claude/skills/perf-check in your project. Claude Code loads it when a task matches its description.
How do I install Perf Check in Codex?
Run `npx skills add josstei/maestro-orchestrate --skill perf-check -a codex`. Or copy the skill folder (claude/skills/perf-check in josstei/maestro-orchestrate) into .agents/skills/perf-check in your project. Codex loads it when a task matches its description.
Can I use Perf Check in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add josstei/maestro-orchestrate --skill perf-check -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/perf-check, .gemini/skills/perf-check, .github/skills/perf-check and .opencode/skills/perf-check in your project.
What does Perf Check need to run?
SKILL.md names no scripts, command-line tools or credentials: Perf Check is instructions for the agent only.
Does Perf Check access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Perf Check safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Perf Check use?
Perf Check is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Perf Check use?
About 221 tokens (SKILL.md is roughly 884 characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Perf Check?
Skills that share tags, products or a category with Perf Check: Phone Harness (ShawnPana/phone-harness, 3.2k stars), Maa Issue Log Analysis (MaaAssistantArknights/MaaAssistantArknights, 24k stars), Mobile QA (tloncorp/tlon-apps, 107 stars) and Store Listing Screenshots (therxmv/Telegram-Themer, 119 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Perf Check?
josstei (a GitHub user) maintains it in josstei/maestro-orchestrate, which has 465 GitHub stars. The repository holds 17 skills in this directory. The repository was last updated on October 6, 2026.
Source: josstei/maestro-orchestrate on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.