Tests Query Corpus
netdata/netdata
Run, extend or review the Netdata query contract corpus (tests/query-corpus), its fixtures, independent oracles, byte pins and harness.
Analyzes code for performance bottlenecks, algorithmic complexity, database queries, memory usage, and scalability.
Custom licenceAuto-check passed
Install Performance Oracle
$ npx skills add udecode/plate --skill performance-oracle -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install udecode/plate performance-oracle --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-oracle .claude/skills/performance-oracle && 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-oracle" agent skill from https://github.com/udecode/plate/tree/main/.agents/skills/performance-oracle into .claude/skills/performance-oracle/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "performance-oracle", 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/performance-oracleType 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-oracle -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install udecode/plate performance-oracle --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-oracle .agents/skills/performance-oracle && 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-oracle" agent skill from https://github.com/udecode/plate/tree/main/.agents/skills/performance-oracle into .agents/skills/performance-oracle/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "performance-oracle", 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-oracle -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install udecode/plate performance-oracle --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-oracle .cursor/skills/performance-oracle && 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-oracle" agent skill from https://github.com/udecode/plate/tree/main/.agents/skills/performance-oracle into .cursor/skills/performance-oracle/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "performance-oracle", 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-oracle--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-oracle -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install udecode/plate performance-oracle --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-oracle .gemini/skills/performance-oracle && 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-oracle" agent skill from https://github.com/udecode/plate/tree/main/.agents/skills/performance-oracle into .gemini/skills/performance-oracle/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "performance-oracle", 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 performance-oracleInstalls 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-oracle -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-oracle .github/skills/performance-oracle && 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-oracle" agent skill from https://github.com/udecode/plate/tree/main/.agents/skills/performance-oracle into .github/skills/performance-oracle/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "performance-oracle", 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-oracle -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-oracle --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-oracle .opencode/skills/performance-oracle && 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-oracle" agent skill from https://github.com/udecode/plate/tree/main/.agents/skills/performance-oracle into .opencode/skills/performance-oracle/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "performance-oracle", 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-oracle- GitHub stars
- 17k
- Token cost
- ~1.5k tokens
- SKILL.md length
- 694 words
- Files
- 1
- Skills in repo
- 78
- Repo updated
- First seen
- Licence
- Custom licence
At a glance
Analyzes code for performance bottlenecks, algorithmic complexity, database queries, memory usage, and scalability.
- Works in 6 steps: Algorithmic Complexity → Database Performance → Memory Management → …
- SKILL.md covers Core Analysis Framework, Performance Benchmarks, Analysis Output Format and Code Review Approach, plus 1 more section
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Performance Oracle is an agent skill from udecode/plate. Analyzes code for performance bottlenecks, algorithmic complexity, database queries, memory usage, and scalability. Use after implementing features or when performance concerns arise.
Its SKILL.md is about 1.5k 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: Rich-text editor with AI and shadcn/ui.
Example prompts
- “Use the performance-oracle skill to analyz code for performance bottlenecks, algorithmic complexity, database queries, memory usage, and scalability”
- “/performance-oracle”
Workflow steps
6 steps, taken from the step headings in SKILL.md.
- Algorithmic Complexity
- Database Performance
- Memory Management
- Caching Opportunities
- Network Optimization
- Frontend Performance
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
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
Performance Oracle loads about 1.5k tokens when it runs. Until then it costs about 51 tokens; SKILL.md has 694 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 694 words (~1,475 tokens).
“Context: The user has just implemented a new feature that processes user data. user: "I've implemented the user analytics feature. Can you check if it will scale?" assistant: "I'll use the performance-oracle agent to analyze the scalability and performance characteristics…”
- name
- performance-oracle
- model
- inherit
Files
Just SKILL.md in .agents/skills/performance-oracle of udecode/plate.
Open the folder on GitHubat commit a860762
Compare with similar skills
Performance Oracle 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 Oracle this skilludecode/plate | 17k | — | ~1.5k | Automated safety check: Pass | Custom licence | |
| Tests Query Corpusnetdata/netdata | 81k | — | ~5.3k | Automated safety check: Pass | GPL-3.0 | |
| What If OracleK-Dense-AI/scientific-agent-skills | 48k | 1 repos | ~2.9k | Automated safety check: Pass | CC-BY-NC-4.0 | |
| Analyzing Experiment Query PerformancePostHog/posthog-foss | 721 | — | ~3.7k | Automated safety check: Pass | MIT | |
| ClickHouse Query Performance Validationcomet-ml/opik | 22k | — | ~2.1k | Automated safety check: Pass | Apache-2.0 | |
| Frontend Query Mutationlangflow-ai/langflow | 156k | — | ~979 | Automated safety check: Pass | MIT |
Similar skills
What If Oracle
K-Dense-AI/scientific-agent-skills
Supports structured what-if scenario analysis for research planning, experimental contingencies, and scientific project decisions.
- Official
Analyzing Experiment Query Performance
PostHog/posthog-foss
Pull and interpret production experiment query-performance data from the staff-only /api/debugchqueries endpoints backing the /experiments/staff scene: slowest experiment queries, precompute…
ClickHouse Query Performance Validation
comet-ml/opik
Measures what a ClickHouse query change actually costs, turning a suspicion that a query is slow into numbers a reviewer can act on before it merges.
Frontend Query Mutation
langflow-ai/langflow
Guide for implementing Langflow frontend query and mutation patterns with Axios and TanStack React Query v5.
Oracle
steipete/agent-scripts
Oracle second-model review: bundle prompts/files, debug, refactor, design.
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Questions about Performance Oracle
What does Performance Oracle do?
Analyzes code for performance bottlenecks, algorithmic complexity, database queries, memory usage, and scalability. Performance Oracle is an agent skill from udecode/plate. Analyzes code for performance bottlenecks, algorithmic complexity, database queries, memory usage, and scalability.
How do I install Performance Oracle in Claude Code?
Run `npx skills add udecode/plate --skill performance-oracle -a claude-code`. Or copy the skill folder (.agents/skills/performance-oracle in udecode/plate) into .claude/skills/performance-oracle in your project. Claude Code loads it when a task matches its description.
How do I install Performance Oracle in Codex?
Run `npx skills add udecode/plate --skill performance-oracle -a codex`. Or copy the skill folder (.agents/skills/performance-oracle in udecode/plate) into .agents/skills/performance-oracle in your project. Codex loads it when a task matches its description.
Can I use Performance Oracle 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-oracle -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-oracle, .gemini/skills/performance-oracle, .github/skills/performance-oracle and .opencode/skills/performance-oracle in your project.
What does Performance Oracle need to run?
SKILL.md names no scripts, command-line tools or credentials: Performance Oracle is instructions for the agent only.
Does Performance Oracle 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 Oracle 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 Oracle use?
Performance Oracle 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 Oracle use?
About 1.5k tokens (SKILL.md is roughly 5.9k 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 Oracle?
Skills that share tags, products or a category with Performance Oracle: Tests Query Corpus (netdata/netdata, 81k stars), What If Oracle (K-Dense-AI/scientific-agent-skills, 48k stars), Analyzing Experiment Query Performance (PostHog/posthog-foss, 721 stars) and ClickHouse Query Performance Validation (comet-ml/opik, 22k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Performance Oracle?
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.