Benchmark
affaan-m/ECC
Measure performance baselines and detect regressions across browser Core Web Vitals (LCP, INP, CLS, page weight), API endpoint latency percentiles, and build/test feedback times, with before/after…
A skill your agent uses when running performance benchmarks, establishing baselines, or validating regressions with sequential runs.
No licenceAuto-check passed
Install Perf Benchmarker
$ npx skills add composio-community/awesome-claude-plugins --skill perf-benchmarker -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install composio-community/awesome-claude-plugins perf-benchmarker --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/composio-community/awesome-claude-plugins.git skills-src && mkdir -p .claude/skills && cp -r skills-src/perf/skills/benchmark .claude/skills/perf-benchmarker && 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-benchmarker" agent skill from https://github.com/composio-community/awesome-claude-plugins/tree/master/perf/skills/benchmark into .claude/skills/perf-benchmarker/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "perf-benchmarker", 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/composio-community/awesome-claude-plugins/tree/master/perf/skills/benchmarkType 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 composio-community/awesome-claude-plugins --skill perf-benchmarker -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install composio-community/awesome-claude-plugins perf-benchmarker --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/composio-community/awesome-claude-plugins.git skills-src && mkdir -p .agents/skills && cp -r skills-src/perf/skills/benchmark .agents/skills/perf-benchmarker && 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-benchmarker" agent skill from https://github.com/composio-community/awesome-claude-plugins/tree/master/perf/skills/benchmark into .agents/skills/perf-benchmarker/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "perf-benchmarker", 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 composio-community/awesome-claude-plugins --skill perf-benchmarker -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install composio-community/awesome-claude-plugins perf-benchmarker --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/composio-community/awesome-claude-plugins.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/perf/skills/benchmark .cursor/skills/perf-benchmarker && 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-benchmarker" agent skill from https://github.com/composio-community/awesome-claude-plugins/tree/master/perf/skills/benchmark into .cursor/skills/perf-benchmarker/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "perf-benchmarker", 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/composio-community/awesome-claude-plugins.git --path perf/skills/benchmark--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 composio-community/awesome-claude-plugins --skill perf-benchmarker -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install composio-community/awesome-claude-plugins perf-benchmarker --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/composio-community/awesome-claude-plugins.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/perf/skills/benchmark .gemini/skills/perf-benchmarker && 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-benchmarker" agent skill from https://github.com/composio-community/awesome-claude-plugins/tree/master/perf/skills/benchmark into .gemini/skills/perf-benchmarker/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "perf-benchmarker", 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 composio-community/awesome-claude-plugins perf-benchmarkerInstalls 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 composio-community/awesome-claude-plugins --skill perf-benchmarker -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/composio-community/awesome-claude-plugins.git skills-src && mkdir -p .github/skills && cp -r skills-src/perf/skills/benchmark .github/skills/perf-benchmarker && 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-benchmarker" agent skill from https://github.com/composio-community/awesome-claude-plugins/tree/master/perf/skills/benchmark into .github/skills/perf-benchmarker/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "perf-benchmarker", 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 composio-community/awesome-claude-plugins --skill perf-benchmarker -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install composio-community/awesome-claude-plugins perf-benchmarker --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/composio-community/awesome-claude-plugins.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/perf/skills/benchmark .opencode/skills/perf-benchmarker && 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-benchmarker" agent skill from https://github.com/composio-community/awesome-claude-plugins/tree/master/perf/skills/benchmark into .opencode/skills/perf-benchmarker/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "perf-benchmarker", 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-benchmarker- GitHub stars
- 1.9k
- Token cost
- ~269 tokens
- SKILL.md length
- 65 words
- Files
- 1
- Skills in repo
- 12
- Repo updated
- First seen
- Licence
- None found
At a glance
A skill your agent uses when running performance benchmarks, establishing baselines, or validating regressions with sequential runs.
- Running performance benchmarks
- SKILL.md covers Required Rules, Output Format, Output Contract and Constraints
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
- Establishing baselines
What it does
Perf Benchmarker is an agent skill from composio-community/awesome-claude-plugins. Use when running performance benchmarks, establishing baselines, or validating regressions with sequential runs. Enforces 60s minimum runs (30s only for binary search) and no parallel benchmarks.
Its SKILL.md is about 270 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
The repository describes itself as: A curated list of Plugins that let you extend Claude Code with custom commands, agents, hooks, and MCP servers through the plugin system.
When your agent uses it
- Running performance benchmarks
- Establishing baselines
- Validating regressions with sequential runs
Example prompts
- “/perf-benchmarker”
What it can do on your machine
Read from SKILL.md and the folder at commit e521f7a. 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 Benchmarker loads about 269 tokens when it runs. Until then it costs about 53 tokens; SKILL.md has 65 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
Without a licence we can't republish the file, so here is its outline and opening line. It has 65 words (~269 tokens).
“Run sequential benchmarks with strict duration rules.”
- name
- perf-benchmarker
- version
- 1.0.0
- argument-hint
- <command> [duration]
Files
Just SKILL.md in perf/skills/benchmark of composio-community/awesome-claude-plugins.
Open the folder on GitHubat commit e521f7a
Compare with similar skills
Perf Benchmarker 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 Benchmarker this skillcomposio-community/awesome-claude-plugins | 1.9k | — | ~269 | Automated safety check: Pass | None | |
| Benchmarkaffaan-m/ECC | 276k | 3 repos | ~654 | Automated safety check: Pass | MIT | |
| Benchmarkaffaan-m/ECC | 276k | — | ~412 | Automated safety check: Pass | MIT | |
| Benchmarkaffaan-m/ECC | 276k | — | ~330 | Automated safety check: Pass | MIT | |
| Build Perf Baselinedotnet/skills | 5.6k | 1 repos | ~3.6k | Automated safety check: Pass | MIT | |
| Gstack Performance Benchmarkgarrytan/gstack | 136k | — | ~7.3k | Automated safety check: Notes | MIT |
Similar skills
Benchmark
affaan-m/ECC
このスキルを使用して、パフォーマンスベースラインを測定し、PR前後の回帰を検出し、スタック代替案を比較します. An agent skill from affaan-m/ECC.
Benchmark
affaan-m/ECC
使用此技能测量性能基线，检测PR前后的回归，并比较堆栈替代方案。
- Official
Build Perf Baseline
dotnet/skills
Establish MSBuild/.NET build performance baselines before optimizing.
Gstack Performance Benchmark
garrytan/gstack
Establishes page load, Core Web Vitals and resource-size baselines, then compares before and after on every pull request to track performance trends over time.
Form Validation
thedaviddias/Front-End-Checklist
A skill your agent uses when reviewing templates, rendered HTML, or shared components related to Validate forms accessibly.
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Perf Analyzer
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A skill your agent uses when synthesizing perf findings into evidence-backed recommendations and decisions.
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A skill your agent uses when mapping code paths, entrypoints, and likely hot files before profiling.
Perf Theory Gatherer
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A skill your agent uses when generating performance hypotheses backed by git history and code evidence.
Pause Subs
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Temporarily disable the skill bus. An agent skill from composio-community/awesome-claude-plugins.
Perf Baseline Manager
composio-community/awesome-claude-plugins
A skill your agent uses when managing perf baselines, consolidating results, or comparing versions.
Questions about Perf Benchmarker
What does Perf Benchmarker do?
A skill your agent uses when running performance benchmarks, establishing baselines, or validating regressions with sequential runs. Perf Benchmarker is an agent skill from composio-community/awesome-claude-plugins. Use when running performance benchmarks, establishing baselines, or validating regressions with sequential runs.
When should I use Perf Benchmarker?
Perf Benchmarker fits situations like: running performance benchmarks; establishing baselines; validating regressions with sequential runs.
How do I install Perf Benchmarker in Claude Code?
Run `npx skills add composio-community/awesome-claude-plugins --skill perf-benchmarker -a claude-code`. Or copy the skill folder (perf/skills/benchmark in composio-community/awesome-claude-plugins) into .claude/skills/perf-benchmarker in your project. Claude Code loads it when a task matches its description.
How do I install Perf Benchmarker in Codex?
Run `npx skills add composio-community/awesome-claude-plugins --skill perf-benchmarker -a codex`. Or copy the skill folder (perf/skills/benchmark in composio-community/awesome-claude-plugins) into .agents/skills/perf-benchmarker in your project. Codex loads it when a task matches its description.
Can I use Perf Benchmarker 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 composio-community/awesome-claude-plugins --skill perf-benchmarker -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-benchmarker, .gemini/skills/perf-benchmarker, .github/skills/perf-benchmarker and .opencode/skills/perf-benchmarker in your project.
What does Perf Benchmarker need to run?
SKILL.md names no scripts, command-line tools or credentials: Perf Benchmarker is instructions for the agent only.
Does Perf Benchmarker 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 Benchmarker 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 Benchmarker use?
No licence was found for Perf Benchmarker or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.
How many tokens does Perf Benchmarker use?
About 269 tokens (SKILL.md is roughly 1.1k 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 Benchmarker?
Skills that share tags, products or a category with Perf Benchmarker: Benchmark (affaan-m/ECC, 276k stars), Benchmark (affaan-m/ECC, 276k stars), Benchmark (affaan-m/ECC, 276k stars) and Build Perf Baseline (dotnet/skills, 5.6k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Perf Benchmarker?
composio-community (a GitHub organization) maintains it in composio-community/awesome-claude-plugins, which has 1,937 GitHub stars. The repository holds 12 skills in this directory. The repository was last updated on July 26, 2026.
Source: composio-community/awesome-claude-plugins on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.