Cloudflare
hodgef/apiker
Comprehensive Cloudflare platform skill covering Workers, Pages, storage (KV, D1, R2), AI (Workers AI, Vectorize, Agents SDK), feature flags (Flagship), networking (Tunnel, Spectrum), security (WAF…
Profile or debug CPU usage and memory allocation in deployed Cloudflare Workers and Durable Objects.
OfficialApache-2.0Auto-check passed
Install Workers Profiling
$ npx skills add cloudflare/skills --skill workers-profiling -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install cloudflare/skills workers-profiling --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/cloudflare/skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/workers-profiling .claude/skills/workers-profiling && 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 "workers-profiling" agent skill from https://github.com/cloudflare/skills/tree/main/skills/workers-profiling into .claude/skills/workers-profiling/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "workers-profiling", 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/cloudflare/skills/tree/main/skills/workers-profilingType 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 cloudflare/skills --skill workers-profiling -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install cloudflare/skills workers-profiling --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/cloudflare/skills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/workers-profiling .agents/skills/workers-profiling && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "workers-profiling" agent skill from https://github.com/cloudflare/skills/tree/main/skills/workers-profiling into .agents/skills/workers-profiling/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "workers-profiling", 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 cloudflare/skills --skill workers-profiling -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install cloudflare/skills workers-profiling --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/cloudflare/skills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/workers-profiling .cursor/skills/workers-profiling && 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 "workers-profiling" agent skill from https://github.com/cloudflare/skills/tree/main/skills/workers-profiling into .cursor/skills/workers-profiling/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "workers-profiling", 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/cloudflare/skills.git --path skills/workers-profiling--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 cloudflare/skills --skill workers-profiling -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install cloudflare/skills workers-profiling --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/cloudflare/skills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/workers-profiling .gemini/skills/workers-profiling && 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 "workers-profiling" agent skill from https://github.com/cloudflare/skills/tree/main/skills/workers-profiling into .gemini/skills/workers-profiling/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "workers-profiling", 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 cloudflare/skills workers-profilingInstalls 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 cloudflare/skills --skill workers-profiling -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/cloudflare/skills.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/workers-profiling .github/skills/workers-profiling && 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 "workers-profiling" agent skill from https://github.com/cloudflare/skills/tree/main/skills/workers-profiling into .github/skills/workers-profiling/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "workers-profiling", 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 cloudflare/skills --skill workers-profiling -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install cloudflare/skills workers-profiling --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/cloudflare/skills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/workers-profiling .opencode/skills/workers-profiling && 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 "workers-profiling" agent skill from https://github.com/cloudflare/skills/tree/main/skills/workers-profiling into .opencode/skills/workers-profiling/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "workers-profiling", 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
workers-profiling- GitHub stars
- 3k
- Token cost
- ~494 tokens
- SKILL.md length
- 252 words
- Files
- 1
- Skills in repo
- 16
- Repo updated
- First seen
- Licence
- Apache-2.0
At a glance
Profile or debug CPU usage and memory allocation in deployed Cloudflare Workers and Durable Objects.
- Works in 4 steps: Identify the symptom and affected… → Confirm the account, Worker,… → For a Durable Object, also confirm its… → …
- SKILL.md covers Retrieve the docs, Profiling steps, Inspect the evidence and Optimise, plus 1 more section
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Workers Profiling is an agent skill from cloudflare/skills, published by the product's own GitHub organization. Profile or debug CPU usage and memory allocation in deployed Cloudflare Workers and Durable Objects. Then use this information to optimize your code.
Its SKILL.md is about 490 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It works with Cloudflare Durable Objects and Cloudflare Workers. The repository describes itself as: Skills for teaching agents how to build on Cloudflare. The licence is Apache-2.0.
Example prompts
- “/workers-profiling”
Workflow steps
4 steps, taken from the first numbered list in SKILL.md.
- Identify the symptom and affected workload: CPU usage, latency, allocation pressure, or memory growth.
- Confirm the account, Worker, environment, and deployed version with the user.
- For a Durable Object, also confirm its owning Worker, namespace, and instance.
- Choose CPU or heap profiling from the current guide's supported types and meanings.
What it can do on your machine
Read from SKILL.md and the folder at commit c430dd9. 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
Links to these hosts (documentation or services it may open):
developers.cloudflare.com
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
Workers Profiling loads about 494 tokens when it runs. Until then it costs about 42 tokens; SKILL.md has 252 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 cloudflare/skills at commit c430dd9, republished under its Apache-2.0 licence (© cloudflare). 252 words, ~494 tokens.
Download SKILL.mdSave it as
.claude/skills/workers-profiling/SKILL.md (or your agent's skills folder).- name
- workers-profiling
- description
- Profile or debug CPU usage and memory allocation in deployed Cloudflare Workers and Durable Objects. Then use this information to optimize your code.
Workers profiling
Find expensive functions or memory allocations in deployed code and come up with ways to fix them.
Retrieve the docs
Start with the production profiling guide to understand how Workers and Durable Objects profiling works.
Profiling steps
- Identify the symptom and affected workload: CPU usage, latency, allocation pressure, or memory growth.
- Confirm the account, Worker, environment, and deployed version with the user.
- For a Durable Object, also confirm its owning Worker, namespace, and instance.
- Choose CPU or heap profiling from the current guide's supported types and meanings.
Where possible, use the cf CLI to capture profiles. If the user requests cf, inspect the installed version's command help and schema where available.
If cf isn't available, consider prompting the user whether they would like to install it.
The profiling API will return a pprof file which you can analyze directly, or using appropriate tools like Go's pprof utility.
Inspect the evidence
- Read the pprof file and analyse it for hotspots
- Map hotspots to functions and source locations when evidence supports it; report missing symbols or source mappings.
- If filenames and function names are pointing at the generated JavaScript, consider suggesting to the user to enable source maps and re-do the profiling.
Optimise
Propose the smallest code change supported by the capture which resolves the issues identified.
Report findings
Return a concise report with:
- Evidence for each finding: file, function, source location, and metric with units, where available.
- The smallest actionable change and how to check its effect.
© cloudflare, 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 skills/workers-profiling of cloudflare/skills.
Open the folder on GitHubat commit c430dd9
Compare with similar skills
Workers Profiling 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 |
|---|---|---|---|---|---|---|
| Workers Profiling this skillcloudflare/skills | 3k | — | ~494 | Automated safety check: Pass | Apache-2.0 | |
| Cloudflarehodgef/apiker | 127 | 7 repos | ~2.2k | Automated safety check: Pass | MIT | |
| Durable Objectshodgef/apiker | 127 | 4 repos | ~1.5k | Automated safety check: Pass | MIT | |
| Cf Compatibility Checkelliothux/open-compute | 1.9k | — | ~3.5k | Automated safety check: Pass | Apache-2.0 | |
| Pairlanekiyo-e/pairlane | 152 | — | ~900 | Automated safety check: Pass | MIT | |
| Sharehtml Collaborationjonesphillip/sharehtml | 133 | — | ~902 | Automated safety check: Pass | Apache-2.0 |
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Related
Questions about Workers Profiling
What does Workers Profiling do?
Profile or debug CPU usage and memory allocation in deployed Cloudflare Workers and Durable Objects. Workers Profiling is an agent skill from cloudflare/skills, published by the product's own GitHub organization. Profile or debug CPU usage and memory allocation in deployed Cloudflare Workers and Durable Objects.
How do I install Workers Profiling in Claude Code?
Run `npx skills add cloudflare/skills --skill workers-profiling -a claude-code`. Or copy the skill folder (skills/workers-profiling in cloudflare/skills) into .claude/skills/workers-profiling in your project. Claude Code loads it when a task matches its description.
How do I install Workers Profiling in Codex?
Run `npx skills add cloudflare/skills --skill workers-profiling -a codex`. Or copy the skill folder (skills/workers-profiling in cloudflare/skills) into .agents/skills/workers-profiling in your project. Codex loads it when a task matches its description.
Can I use Workers Profiling 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 cloudflare/skills --skill workers-profiling -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/workers-profiling, .gemini/skills/workers-profiling, .github/skills/workers-profiling and .opencode/skills/workers-profiling in your project.
What does Workers Profiling need to run?
SKILL.md names no scripts, command-line tools or credentials: Workers Profiling is instructions for the agent only.
Does Workers Profiling access the network?
SKILL.md names 1 domain. As links in the text: developers.cloudflare.com. This is read from the text; nothing was executed.
Is Workers Profiling 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 Workers Profiling use?
Workers Profiling 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 Workers Profiling use?
About 494 tokens (SKILL.md is roughly 2k 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 Workers Profiling?
Skills that share tags, products or a category with Workers Profiling: Cloudflare (hodgef/apiker, 127 stars), Durable Objects (hodgef/apiker, 127 stars), Cf Compatibility Check (elliothux/open-compute, 1.9k stars) and Pairlane (kiyo-e/pairlane, 152 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Workers Profiling?
cloudflare (a GitHub organization, an official publisher) maintains it in cloudflare/skills, which has 3,033 GitHub stars. The repository holds 16 skills in this directory. The repository was last updated on October 10, 2026.
Source: cloudflare/skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.