Security And Hardening
penpot/penpot
Hardens code against vulnerabilities. An agent skill from penpot/penpot.
Secure coding practices for agent-native apps: input validation, SQL injection, XSS, secrets, data scoping, and auth.
Install Security
$ npx skills add BuilderIO/agent-native --skill security -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install BuilderIO/agent-native security --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/BuilderIO/agent-native.git skills-src && mkdir -p .claude/skills && cp -r skills-src/community-templates/win-loss-memo/.agents/skills/security .claude/skills/security && 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 "security" agent skill from https://github.com/BuilderIO/agent-native/tree/main/community-templates/win-loss-memo/.agents/skills/security into .claude/skills/security/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "security", 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/BuilderIO/agent-native/tree/main/community-templates/win-loss-memo/.agents/skills/securityType 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 BuilderIO/agent-native --skill security -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install BuilderIO/agent-native security --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/BuilderIO/agent-native.git skills-src && mkdir -p .agents/skills && cp -r skills-src/community-templates/win-loss-memo/.agents/skills/security .agents/skills/security && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "security" agent skill from https://github.com/BuilderIO/agent-native/tree/main/community-templates/win-loss-memo/.agents/skills/security into .agents/skills/security/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "security", 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 BuilderIO/agent-native --skill security -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install BuilderIO/agent-native security --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/BuilderIO/agent-native.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/community-templates/win-loss-memo/.agents/skills/security .cursor/skills/security && 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 "security" agent skill from https://github.com/BuilderIO/agent-native/tree/main/community-templates/win-loss-memo/.agents/skills/security into .cursor/skills/security/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "security", 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/BuilderIO/agent-native.git --path community-templates/win-loss-memo/.agents/skills/security--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 BuilderIO/agent-native --skill security -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install BuilderIO/agent-native security --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/BuilderIO/agent-native.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/community-templates/win-loss-memo/.agents/skills/security .gemini/skills/security && 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 "security" agent skill from https://github.com/BuilderIO/agent-native/tree/main/community-templates/win-loss-memo/.agents/skills/security into .gemini/skills/security/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "security", 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 BuilderIO/agent-native securityInstalls 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 BuilderIO/agent-native --skill security -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/BuilderIO/agent-native.git skills-src && mkdir -p .github/skills && cp -r skills-src/community-templates/win-loss-memo/.agents/skills/security .github/skills/security && 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 "security" agent skill from https://github.com/BuilderIO/agent-native/tree/main/community-templates/win-loss-memo/.agents/skills/security into .github/skills/security/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "security", 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 BuilderIO/agent-native --skill security -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install BuilderIO/agent-native security --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/BuilderIO/agent-native.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/community-templates/win-loss-memo/.agents/skills/security .opencode/skills/security && 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 "security" agent skill from https://github.com/BuilderIO/agent-native/tree/main/community-templates/win-loss-memo/.agents/skills/security into .opencode/skills/security/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "security", 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
security- GitHub stars
- 7.1k
- Token cost
- ~5.2k tokens
- SKILL.md length
- 2,251 words
- Files
- 1
- Skills in repo
- 102
- Repo updated
- First seen
- Licence
- None found
At a glance
Secure coding practices for agent-native apps: input validation, SQL injection, XSS, secrets, data scoping, and auth.
- Works in 3 steps: Read the session: const session = await… → Run the work inside… → Inside fn, query through one of
- Writing any action
- SKILL.md covers Rule, Absolute Secrets Rule, Input Validation and Large Payloads, plus 13 more sections
- Calls pnpm; needs BETTER_AUTH_SECRET and OPENAI_API_KEY
What it does
Security is an agent skill from BuilderIO/agent-native. Secure coding practices for agent-native apps: input validation, SQL injection, XSS, secrets, data scoping, and auth. Use when writing any action, route, or component that touches user data or external input.
Its SKILL.md is about 5.2k 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 Security, covering Web application vulnerabilities and Secure coding. The repository describes itself as: A framework for building agentic apps.
When your agent uses it
- Writing any action
- Component that touches user data
Example prompts
- “/security”
Requirements
- A credential in OPENAI_API_KEY
- A credential in SECRETS_ENCRYPTION_KEY
Workflow steps
3 steps, taken from the first numbered list in SKILL.md.
- Read the session: const session = await getSession(event).catch(() => null).
- Run the work inside runWithRequestContext({ userEmail: session?.email, orgId: session?.orgId }, fn) from @agent-native/core/server.
- Inside fn, query through one of
What it can do on your machine
Read from SKILL.md and the folder at commit e16da0c. 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:
pnpm
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md. Its commands use pnpm, 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 these keys or tokens, usually read from environment variables:
BETTER_AUTH_SECRETOPENAI_API_KEYSECRETS_ENCRYPTION_KEY
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Security loads about 5.2k tokens when it runs. Until then it costs about 54 tokens; SKILL.md has 2,251 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: notes
The automated check noted patterns worth knowing about, such as sudo or a known installer.
- NoteMentions a .env fileSKILL.md:343
- [ ] New env vars in `.env` only, not committed
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 2,251 words (~5,181 tokens).
“Use the framework's security primitives everywhere. Never bypass them.”
- name
- security
- scope
- dev
- metadata.internal
- true
Files
Just SKILL.md in community-templates/win-loss-memo/.agents/skills/security of BuilderIO/agent-native.
Open the folder on GitHubat commit e16da0c
Compare with similar skills
Security 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 |
|---|---|---|---|---|---|---|
| Security this skillBuilderIO/agent-native | 7.1k | — | ~5.2k | Automated safety check: Notes | None | |
| Security And Hardeningpenpot/penpot | 61k | 6 repos | ~4.7k | Automated safety check: Notes | MPL-2.0 | |
| Fix Strix Security Findingsusestrix/strix | 67k | — | ~1.5k | Automated safety check: Pass | Apache-2.0 | |
| Security Audit Scannerruvnet/ruflo | 74k | 2 repos | ~823 | Automated safety check: Pass | MIT | |
| Security Verification Gatefengshao1227/ccg-workflow | 5.9k | — | ~621 | Automated safety check: Notes | MIT | |
| Security and Hardeningaddyosmani/agent-skills | 103k | 1 repos | ~4.4k | Automated safety check: Notes | MIT |
Similar skills
Fix Strix Security Findings
usestrix/strix
Triages findings from a Strix pentest by severity, fixes each root cause with a minimal change, and re-runs Strix to confirm the exploit no longer works.
Security Audit Scanner
ruvnet/ruflo
Runs claude-flow CLI security scans for input validation, path traversal, SQL injection, XSS, hardcoded secrets and known CVEs, and writes an audit report.
Security Verification Gate
fengshao1227/ccg-workflow
Scans code with a bundled Node script for injection, secrets, XSS and other risky patterns, ranks findings by severity and checks that security decisions are documented.
Security and Hardening
addyosmani/agent-skills
Applies a threat-model-first approach to web code that handles untrusted input, authentication, data storage, dependencies or personal data.
- Official
Code Security
semgrep/skills
Security guidelines for writing secure code. An agent skill from semgrep/skills.
More from BuilderIO/agent-native
All 102 skills in this repoActions
BuilderIO/agent-native
How to create and run agent actions. An agent skill from BuilderIO/agent-native.
Client Methods
BuilderIO/agent-native
Client method surface rules. An agent skill from BuilderIO/agent-native.
Adding A Feature
BuilderIO/agent-native
The four-area checklist every new feature must complete. An agent skill from BuilderIO/agent-native.
Address Feedback
BuilderIO/agent-native
Triage feedback from docs, issues, Slack threads, or pasted notes into verified bugs, UX proposals, unclear questions, and skipped noise.
Audit Log
BuilderIO/agent-native
Durable, access-scoped, append-only record of who changed what app data, when, and whether it was the agent or a human.
Automations
BuilderIO/agent-native
Event-triggered and schedule-triggered automations with natural-language conditions.
Related
Categories
Questions about Security
What does Security do?
Secure coding practices for agent-native apps: input validation, SQL injection, XSS, secrets, data scoping, and auth. Security is an agent skill from BuilderIO/agent-native. Secure coding practices for agent-native apps: input validation, SQL injection, XSS, secrets, data scoping, and auth.
When should I use Security?
Security fits situations like: writing any action; component that touches user data.
How do I install Security in Claude Code?
Run `npx skills add BuilderIO/agent-native --skill security -a claude-code`. Or copy the skill folder (community-templates/win-loss-memo/.agents/skills/security in BuilderIO/agent-native) into .claude/skills/security in your project. Claude Code loads it when a task matches its description.
How do I install Security in Codex?
Run `npx skills add BuilderIO/agent-native --skill security -a codex`. Or copy the skill folder (community-templates/win-loss-memo/.agents/skills/security in BuilderIO/agent-native) into .agents/skills/security in your project. Codex loads it when a task matches its description.
Can I use Security 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 BuilderIO/agent-native --skill security -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/security, .gemini/skills/security, .github/skills/security and .opencode/skills/security in your project.
What does Security need to run?
Going by SKILL.md and its folder, Security needs the command-line tools its instructions call (pnpm) and credentials named BETTER_AUTH_SECRET, OPENAI_API_KEY and SECRETS_ENCRYPTION_KEY. Our summary lists: A credential in OPENAI_API_KEY; A credential in SECRETS_ENCRYPTION_KEY.
Does Security 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 Security safe to install?
Our automated static check of SKILL.md found notes only (mentions a .env file), nothing it rates as a warning. It is not a guarantee. Review the folder before installing.
What licence does Security use?
No licence was found for Security or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.
How many tokens does Security use?
About 5.2k tokens (SKILL.md is roughly 21k 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 Security?
Skills that share tags, products or a category with Security: Security And Hardening (penpot/penpot, 61k stars), Fix Strix Security Findings (usestrix/strix, 67k stars), Security Audit Scanner (ruvnet/ruflo, 74k stars) and Security Verification Gate (fengshao1227/ccg-workflow, 5.9k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Security?
BuilderIO (a GitHub organization) maintains it in BuilderIO/agent-native, which has 7,087 GitHub stars. The repository holds 102 skills in this directory. The repository was last updated on October 8, 2026.
Source: BuilderIO/agent-native on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.