Run Parity
millionco/react-doctor
Compare React Doctor diagnostics for a GitHub pull request (PR) with Vercel Sandbox.
Review performance lanes with GitHub-scale tactics not owned by Vercel React rules: cohort segmentation, repeated-unit budgets, interaction-level INP, memory tagging, degradation contracts, browser…
Custom licenceAuto-check passed
Install Performance
$ npx skills add udecode/plate --skill performance -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install udecode/plate performance --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/udecode/plate.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/performance .claude/skills/performance && 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 "performance" agent skill from https://github.com/udecode/plate/tree/main/.agents/skills/performance into .claude/skills/performance/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "performance", 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/udecode/plate/tree/main/.agents/skills/performanceType 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 udecode/plate --skill performance -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install udecode/plate performance --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/udecode/plate.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.agents/skills/performance .agents/skills/performance && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "performance" agent skill from https://github.com/udecode/plate/tree/main/.agents/skills/performance into .agents/skills/performance/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "performance", 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 udecode/plate --skill performance -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install udecode/plate performance --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/udecode/plate.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.agents/skills/performance .cursor/skills/performance && 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 "performance" agent skill from https://github.com/udecode/plate/tree/main/.agents/skills/performance into .cursor/skills/performance/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "performance", 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/udecode/plate.git --path .agents/skills/performance--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 udecode/plate --skill performance -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install udecode/plate performance --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/udecode/plate.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.agents/skills/performance .gemini/skills/performance && 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 "performance" agent skill from https://github.com/udecode/plate/tree/main/.agents/skills/performance into .gemini/skills/performance/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "performance", 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 udecode/plate performanceInstalls 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 udecode/plate --skill performance -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/udecode/plate.git skills-src && mkdir -p .github/skills && cp -r skills-src/.agents/skills/performance .github/skills/performance && 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 "performance" agent skill from https://github.com/udecode/plate/tree/main/.agents/skills/performance into .github/skills/performance/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "performance", 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 udecode/plate --skill performance -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install udecode/plate performance --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/udecode/plate.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.agents/skills/performance .opencode/skills/performance && 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 "performance" agent skill from https://github.com/udecode/plate/tree/main/.agents/skills/performance into .opencode/skills/performance/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "performance", 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
performance- GitHub stars
- 17k
- Token cost
- ~2.6k tokens
- SKILL.md length
- 974 words
- Files
- 15
- Skills in repo
- 78
- Repo updated
- First seen
- Licence
- Custom licence
At a glance
Review performance lanes with GitHub-scale tactics not owned by Vercel React rules: cohort segmentation, repeated-unit budgets, interaction-level INP, memory tagging, degradation contracts, browser…
- Works in 9 steps: Segment the workload into normal, large,… → Name the repeated unit: block, row,… → Set current and target budgets for DOM… → …
- SKILL.md covers Owner Map, Required Output, Quick Pass and Blockers, plus 5 more sections
- Calls vercel
What it does
Performance is an agent skill from udecode/plate. Review performance lanes with GitHub-scale tactics not owned by Vercel React rules: cohort segmentation, repeated-unit budgets, interaction-level INP, memory tagging, degradation contracts, browser trace proof, and production dashboards.
Its SKILL.md is about 2.6k tokens, which your agent loads only when the skill is triggered. The skill folder holds 15 other files (for example `rules/browser-trace-cwv-proof.md`, `rules/cohort-segmentation.md` and `rules/css-layout-hotpath.md`).
It works with Vercel, React and GitHub. The repository describes itself as: Rich-text editor with AI and shadcn/ui.
Example prompts
- “/performance”
Workflow steps
9 steps, taken from the first numbered list in SKILL.md.
- Segment the workload into normal, large, stress, and pathological cohorts.
- Name the repeated unit: block, row, cell, leaf, decoration, overlay, island, listener, or subscription.
- Set current and target budgets for DOM nodes, components, handlers, effects, subscriptions, allocations, layout reads/writes, and memory…
- Simplify the normal path before adding special modes.
- Move rare state out of the repeated unit: comments, menus, hover chrome, selection tools, debug panels, context actions.
- Add O(1) indexes or cached lookups only where the hot path proves repeated scans.
- Choose the degradation contract for aggressive modes: native, DOM-present staged, shell island, virtualized, or model-backed.
- Instrument p50/p75/p95/p99 interaction rows by cohort and mode.
- Record browser trace proof and production/RUM tags when the claim matters outside the lab.
What it can do on your machine
Read from SKILL.md and the folder at commit a860762. 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
Shell commands in SKILL.md call:
vercel
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md. Its commands use vercel, which can reach the network depending on how they are called.
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
Performance loads about 2.6k tokens when it runs. Until then it costs about 62 tokens; SKILL.md has 974 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
Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 974 words (~2,585 tokens).
- name
- performance
- argument-hint
- [scope | benchmark | plan path]
- disable-model-invocation
- true
Files
SKILL.md and 14 other files in .agents/skills/performance of udecode/plate.
- SKILL.md
- rules/browser-trace-cwv-proof.md
- rules/cohort-segmentation.md
- rules/css-layout-hotpath.md
- rules/degradation-contract.md
- rules/editor-native-behavior-proof.md
- rules/effect-subscription-budget.md
- rules/event-delegation-budget.md
- rules/interaction-inp-matrix.md
- rules/memory-dom-tagging.md
- rules/production-rum-dashboard.md
- rules/rare-state-isolation.md
- rules/react-19-runtime-proof.md
- rules/repeated-unit-budget.md
- rules/staged-readiness.md
Open the folder on GitHubat commit a860762
Compare with similar skills
Performance 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 |
|---|---|---|---|---|---|---|
| Performance this skilludecode/plate | 17k | — | ~2.6k | Automated safety check: Pass | Custom licence | |
| Run Paritymillionco/react-doctor | 15k | — | ~4.1k | Automated safety check: Pass | Custom licence | |
| Find Skillsrohitg00/skillkit | 1.5k | — | ~1.2k | Automated safety check: Pass | Apache-2.0 | |
| React Performanceaffaan-m/ECC | 274k | 1 repos | ~4.5k | Automated safety check: Pass | MIT | |
| AI SDKvercel-labs/ai-facts | 168 | 21 repos | ~1.2k | Automated safety check: Pass | None | |
| Vercel React Best Practicessanity-io/sanity | 6.4k | 130 repos | ~1.6k | Automated safety check: Pass | MIT |
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Related
Questions about Performance
What does Performance do?
Review performance lanes with GitHub-scale tactics not owned by Vercel React rules: cohort segmentation, repeated-unit budgets, interaction-level INP, memory tagging, degradation contracts, browser…. Performance is an agent skill from udecode/plate. Review performance lanes with GitHub-scale tactics not owned by Vercel React rules: cohort segmentation, repeated-unit budgets, interaction-level INP, memory tagging, degradation contracts, browser trace proof, and production dashboards.
How do I install Performance in Claude Code?
Run `npx skills add udecode/plate --skill performance -a claude-code`. Or copy the skill folder (.agents/skills/performance in udecode/plate) into .claude/skills/performance in your project. Claude Code loads it when a task matches its description.
How do I install Performance in Codex?
Run `npx skills add udecode/plate --skill performance -a codex`. Or copy the skill folder (.agents/skills/performance in udecode/plate) into .agents/skills/performance in your project. Codex loads it when a task matches its description.
Can I use Performance 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 udecode/plate --skill performance -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/performance, .gemini/skills/performance, .github/skills/performance and .opencode/skills/performance in your project.
What does Performance need to run?
Going by SKILL.md and its folder, Performance needs the command-line tools its instructions call (vercel).
Does Performance 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 Performance 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 Performance use?
Performance has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.
How many tokens does Performance use?
About 2.6k tokens (SKILL.md is roughly 10k 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 Performance?
Skills that share tags, products or a category with Performance: Run Parity (millionco/react-doctor, 15k stars), Find Skills (rohitg00/skillkit, 1.5k stars), React Performance (affaan-m/ECC, 274k stars) and AI SDK (vercel-labs/ai-facts, 168 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Performance?
udecode (a GitHub organization) maintains it in udecode/plate, which has 16,638 GitHub stars. The repository holds 78 skills in this directory. The repository was last updated on October 7, 2026.
Source: udecode/plate on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.