DeerFlow Smoke Test
bytedance/deer-flow
Walks through an end-to-end smoke test of a DeerFlow deployment: pull the latest code, deploy with Docker or locally, verify services, run health checks and write a report.
Tiers, checkpoints, and off-limits paths for an agent editing the app's own source.
No licenceAuto-check: notes
Install Self Modifying Code
$ npx skills add BuilderIO/agent-native --skill self-modifying-code -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install BuilderIO/agent-native self-modifying-code --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/.agents/skills/self-modifying-code .claude/skills/self-modifying-code && 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 "self-modifying-code" agent skill from https://github.com/BuilderIO/agent-native/tree/main/.agents/skills/self-modifying-code into .claude/skills/self-modifying-code/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "self-modifying-code", 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/.agents/skills/self-modifying-codeType 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 self-modifying-code -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install BuilderIO/agent-native self-modifying-code --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/.agents/skills/self-modifying-code .agents/skills/self-modifying-code && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "self-modifying-code" agent skill from https://github.com/BuilderIO/agent-native/tree/main/.agents/skills/self-modifying-code into .agents/skills/self-modifying-code/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "self-modifying-code", 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 self-modifying-code -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install BuilderIO/agent-native self-modifying-code --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/.agents/skills/self-modifying-code .cursor/skills/self-modifying-code && 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 "self-modifying-code" agent skill from https://github.com/BuilderIO/agent-native/tree/main/.agents/skills/self-modifying-code into .cursor/skills/self-modifying-code/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "self-modifying-code", 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 .agents/skills/self-modifying-code--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 self-modifying-code -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install BuilderIO/agent-native self-modifying-code --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/.agents/skills/self-modifying-code .gemini/skills/self-modifying-code && 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 "self-modifying-code" agent skill from https://github.com/BuilderIO/agent-native/tree/main/.agents/skills/self-modifying-code into .gemini/skills/self-modifying-code/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "self-modifying-code", 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 self-modifying-codeInstalls 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 self-modifying-code -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/.agents/skills/self-modifying-code .github/skills/self-modifying-code && 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 "self-modifying-code" agent skill from https://github.com/BuilderIO/agent-native/tree/main/.agents/skills/self-modifying-code into .github/skills/self-modifying-code/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "self-modifying-code", 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 self-modifying-code -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 self-modifying-code --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/.agents/skills/self-modifying-code .opencode/skills/self-modifying-code && 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 "self-modifying-code" agent skill from https://github.com/BuilderIO/agent-native/tree/main/.agents/skills/self-modifying-code into .opencode/skills/self-modifying-code/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "self-modifying-code", 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
self-modifying-code- GitHub stars
- 7.1k
- Token cost
- ~1.5k tokens
- SKILL.md length
- 644 words
- Files
- 1
- Skills in repo
- 102
- Repo updated
- First seen
- Licence
- None found
At a glance
Tiers, checkpoints, and off-limits paths for an agent editing the app's own source.
- Works in 5 steps: Commit or stash current state → Make the edit → Run pnpm typecheck && pnpm lint → …
- Designing UI for agent editability
- SKILL.md covers Rule, Why, Modification Taxonomy and Git Checkpoint Pattern, plus 3 more sections
- Calls pnpm, git and npx
What it does
Self Modifying Code is an agent skill from BuilderIO/agent-native. Tiers, checkpoints, and off-limits paths for an agent editing the app's own source. Use when designing UI for agent editability, deciding whether a file is safe for the agent to change, or when tempted to patch config, .env, or an @agent-native/ package. Do not load it for ordinary source edits.
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.
It works with pnpm. The repository describes itself as: A framework for building agentic apps.
When your agent uses it
- Designing UI for agent editability
- Deciding whether a file is safe for the agent to change
- Tempted to patch config
- An @agent-native/ package
Example prompts
- “/self-modifying-code”
Requirements
- Node.js
Workflow steps
5 steps, taken from the first numbered list in SKILL.md.
- Commit or stash current state
- Make the edit
- Run pnpm typecheck && pnpm lint
- If verification fails → revert with git checkout --
- If verification passes → continue
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:
pnpmgitnpx
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md. Its commands use pnpm, git and npx, 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
Self Modifying Code loads about 1.5k tokens when it runs. Until then it costs about 80 tokens; SKILL.md has 644 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:6
hange, or when tempted to patch config, `.env`, or - NoteMentions a .env fileSKILL.md:32
4: Off limits | Secrets and framework | `.env`, `@agent-native/*` packages & overrides | Never modify these - NoteMentions a .env fileSKILL.md:99
- Don't modify `.env` files or files containing secrets
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 644 words (~1,463 tokens).
“The agent can edit the app's own source code — components, routes, styles, scripts. This is a feature, not a bug. Design your app expecting this.”
- name
- self-modifying-code
- scope
- dev
- metadata.internal
- true
Files
Just SKILL.md in .agents/skills/self-modifying-code of BuilderIO/agent-native.
Open the folder on GitHubat commit e16da0c
Compare with similar skills
Self Modifying Code 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 |
|---|---|---|---|---|---|---|
| Self Modifying Code this skillBuilderIO/agent-native | 7.1k | — | ~1.5k | Automated safety check: Notes | None | |
| DeerFlow Smoke Testbytedance/deer-flow | 83k | — | ~2.5k | Automated safety check: Notes | MIT | |
| @pierre/diffs Code Renderingpierrecomputer/pierre | 6.2k | 2 repos | ~803 | Automated safety check: Pass | Apache-2.0 | |
| React Router Release Notes Prepremix-run/react-router | 57k | — | ~1.1k | Automated safety check: Pass | MIT | |
| Vuetify Playgroundvuetifyjs/vuetify | 41k | — | ~730 | Automated safety check: Pass | Custom licence | |
| React Syncvercel/next.js | 143k | — | ~486 | Automated safety check: Pass | MIT |
Similar skills
@pierre/diffs Code Rendering
pierrecomputer/pierre
Guides an agent through using @pierre/diffs to render syntax-highlighted files and diffs, and to build editing and review surfaces in React or plain JavaScript.
React Router Release Notes Prep
remix-run/react-router
Polishes pending React Router change files before the versioning scripts run, and decides whether a long-form What's Changed section is warranted.
Vuetify Playground
vuetifyjs/vuetify
Maintains the Vuetify repo's local Playground.vue so contributors get a realistic reproduction and a short demo they can paste into a pull request description.
- Official
React Sync
vercel/next.js
Build local React changes in the bundle variants consumed by Next.js, sync them into a local Next.js checkout, and test the resulting integration.
Link Workspace Packages
nomcopter/react-mosaic
Link workspace packages in monorepos (npm, yarn, pnpm, bun).
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
Works with
Questions about Self Modifying Code
What does Self Modifying Code do?
Tiers, checkpoints, and off-limits paths for an agent editing the app's own source. Self Modifying Code is an agent skill from BuilderIO/agent-native. Tiers, checkpoints, and off-limits paths for an agent editing the app's own source.
When should I use Self Modifying Code?
Self Modifying Code fits situations like: designing UI for agent editability; deciding whether a file is safe for the agent to change; tempted to patch config; an @agent-native/ package.
How do I install Self Modifying Code in Claude Code?
Run `npx skills add BuilderIO/agent-native --skill self-modifying-code -a claude-code`. Or copy the skill folder (.agents/skills/self-modifying-code in BuilderIO/agent-native) into .claude/skills/self-modifying-code in your project. Claude Code loads it when a task matches its description.
How do I install Self Modifying Code in Codex?
Run `npx skills add BuilderIO/agent-native --skill self-modifying-code -a codex`. Or copy the skill folder (.agents/skills/self-modifying-code in BuilderIO/agent-native) into .agents/skills/self-modifying-code in your project. Codex loads it when a task matches its description.
Can I use Self Modifying Code 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 self-modifying-code -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/self-modifying-code, .gemini/skills/self-modifying-code, .github/skills/self-modifying-code and .opencode/skills/self-modifying-code in your project.
What does Self Modifying Code need to run?
Going by SKILL.md and its folder, Self Modifying Code needs the command-line tools its instructions call (pnpm, git and npx). Our summary lists: Node.js.
Does Self Modifying Code access the network?
SKILL.md contains no URLs. Its commands use git and npx, which can reach the network depending on how they are called. This is read from the text; nothing was executed.
Is Self Modifying Code 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 Self Modifying Code use?
No licence was found for Self Modifying Code or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.
How many tokens does Self Modifying Code 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 Self Modifying Code?
Skills that share tags, products or a category with Self Modifying Code: DeerFlow Smoke Test (bytedance/deer-flow, 83k stars), @pierre/diffs Code Rendering (pierrecomputer/pierre, 6.2k stars), React Router Release Notes Prep (remix-run/react-router, 57k stars) and Vuetify Playground (vuetifyjs/vuetify, 41k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Self Modifying Code?
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.