Counterfact Repl
counterfact/api-simulator
Interact with Counterfact mock API server programmatically. An agent skill from counterfact/api-simulator.
Vendored assets. An agent skill from foldkit/foldkit.
Install Vendored Assets
$ npx skills add foldkit/foldkit --skill vendored-assets -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install foldkit/foldkit vendored-assets --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/foldkit/foldkit.git skills-src && mkdir -p .claude/skills && cp -r skills-src/repos/effect/.agents/skills/vendored-assets .claude/skills/vendored-assets && 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 "vendored-assets" agent skill from https://github.com/foldkit/foldkit/tree/main/repos/effect/.agents/skills/vendored-assets into .claude/skills/vendored-assets/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "vendored-assets", 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/foldkit/foldkit/tree/main/repos/effect/.agents/skills/vendored-assetsType 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 foldkit/foldkit --skill vendored-assets -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install foldkit/foldkit vendored-assets --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/foldkit/foldkit.git skills-src && mkdir -p .agents/skills && cp -r skills-src/repos/effect/.agents/skills/vendored-assets .agents/skills/vendored-assets && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "vendored-assets" agent skill from https://github.com/foldkit/foldkit/tree/main/repos/effect/.agents/skills/vendored-assets into .agents/skills/vendored-assets/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "vendored-assets", 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 foldkit/foldkit --skill vendored-assets -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install foldkit/foldkit vendored-assets --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/foldkit/foldkit.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/repos/effect/.agents/skills/vendored-assets .cursor/skills/vendored-assets && 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 "vendored-assets" agent skill from https://github.com/foldkit/foldkit/tree/main/repos/effect/.agents/skills/vendored-assets into .cursor/skills/vendored-assets/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "vendored-assets", 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/foldkit/foldkit.git --path repos/effect/.agents/skills/vendored-assets--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 foldkit/foldkit --skill vendored-assets -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install foldkit/foldkit vendored-assets --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/foldkit/foldkit.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/repos/effect/.agents/skills/vendored-assets .gemini/skills/vendored-assets && 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 "vendored-assets" agent skill from https://github.com/foldkit/foldkit/tree/main/repos/effect/.agents/skills/vendored-assets into .gemini/skills/vendored-assets/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "vendored-assets", 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 foldkit/foldkit vendored-assetsInstalls 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 foldkit/foldkit --skill vendored-assets -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/foldkit/foldkit.git skills-src && mkdir -p .github/skills && cp -r skills-src/repos/effect/.agents/skills/vendored-assets .github/skills/vendored-assets && 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 "vendored-assets" agent skill from https://github.com/foldkit/foldkit/tree/main/repos/effect/.agents/skills/vendored-assets into .github/skills/vendored-assets/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "vendored-assets", 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 foldkit/foldkit --skill vendored-assets -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install foldkit/foldkit vendored-assets --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/foldkit/foldkit.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/repos/effect/.agents/skills/vendored-assets .opencode/skills/vendored-assets && 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 "vendored-assets" agent skill from https://github.com/foldkit/foldkit/tree/main/repos/effect/.agents/skills/vendored-assets into .opencode/skills/vendored-assets/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "vendored-assets", 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
vendored-assets- GitHub stars
- 918
- Token cost
- ~734 tokens
- SKILL.md length
- 373 words
- Files
- 2
- Skills in repo
- 18
- Repo updated
- First seen
- Licence
- MIT
At a glance
Vendored assets. An agent skill from foldkit/foldkit.
- Works in 7 steps: Trace ownership. Identify the artifact,… → Pin provenance. Resolve moving URLs,… → Clear the license gate. Verify release… → …
- Updating checked-in third-party
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
- Externally generated JavaScript
What it does
Vendored Assets is an agent skill from foldkit/foldkit. Vendored assets. Use when importing or updating checked-in third-party or externally generated JavaScript, CSS, registries, schemas, snapshots, or Scalar, Swagger, and MIME artifacts.
Its SKILL.md is about 730 tokens, which your agent loads only when the skill is triggered. The skill folder holds 1 other file (for example `browser-assets.md`).
It sits in Backend & APIs, covering OpenAPI specifications. It works with JavaScript and OpenAPI. The licence is MIT.
When your agent uses it
- Updating checked-in third-party
- Externally generated JavaScript
Example prompts
- “/vendored-assets”
Workflow steps
7 steps, taken from the first numbered list in SKILL.md.
- Trace ownership. Identify the artifact, generator or exact import
- Pin provenance. Resolve moving URLs, tags, branches, and omitted versions
- Clear the license gate. Verify release metadata, license files, bundled
- Regenerate. Improve the generator or import reference first. Recover an
- Audit the complete diff. Account for behavior, URLs and runtime fetches,
- Clear test and size gates. Record byte sizes before and after, use
- Close release impact. Apply root changeset routing for consumer-visible
What it can do on your machine
Read from SKILL.md and the folder at commit d21db42. 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
Vendored Assets loads about 734 tokens when it runs. Until then it costs about 50 tokens; SKILL.md has 373 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 foldkit/foldkit at commit d21db42, republished under its MIT licence (© foldkit). 373 words, ~734 tokens.
Download SKILL.mdSave it as
.claude/skills/vendored-assets/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.- name
- vendored-assets
- description
- Vendored assets. Use when importing or updating checked-in third-party or externally generated JavaScript, CSS, registries, schemas, snapshots, or Scalar, Swagger, and MIME artifacts.
Treat upstream artifacts as supply-chain inputs. Change their generator or documented import source, then regenerate; generated output is review evidence, not an editing surface.
Workflow
- Trace ownership. Identify the artifact, generator or exact import procedure, upstream source/version, license, consumers, tests, and shipped package or bundle. Search by asset and upstream project name to find current packaging scripts, generated artifacts, consumers, and history. Continue when every input and consumer is accounted for.
- Pin provenance. Resolve moving URLs, tags, branches, and omitted versions to an immutable release or artifact. Record project, version, path or URL, and digest in the generator or maintenance header. Omit a digest only when another enforced immutable source is recorded. Continue when a future run cannot silently select different bytes.
- Clear the license gate. Verify release metadata, license files, bundled notices, and the license trail retained in the distributed form. Continue when every distributed artifact has a verified retained license trail.
- Regenerate. Improve the generator or import reference first. Recover an exact procedure for generatorless assets; add a deterministic script only for recurring updates. Record a one-off procedure beside the artifact. A clean rerun must produce no diff.
- Audit the complete diff. Account for behavior, URLs and runtime fetches, source maps, notices, encoding, format changes, and additions or removals. For browser assets, also read browser-assets.md. Continue when every change is attributable and suspicious content is resolved or reported.
- Clear test and size gates. Record byte sizes before and after, use focused consumer tests, and compare bundle size or composition when shipped JavaScript, CSS, or registry output changes materially. Compare that output against the pre-update revision rather than measuring only current size. Continue when focused checks pass and every non-trivial size delta is explained.
- Close release impact. Apply root changeset routing for consumer-visible behavior, browser support, wire data, or meaningful shipped-size changes. Generated sections owned by barrels, AI docs, or migration tooling remain with the owners named in root instructions.
Show full SKILL.md (45 more words)Show less
The task is complete when every input and consumer is accounted for, provenance and licenses are immutable and retained, regeneration is deterministic, every output change and non-trivial size delta is explained, focused checks pass or are reported as not runnable, and release impact is recorded.
© foldkit, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
SKILL.md and 1 other file in repos/effect/.agents/skills/vendored-assets of foldkit/foldkit.
- SKILL.md
- browser-assets.md
Open the folder on GitHubat commit d21db42
Compare with similar skills
Vendored Assets 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 |
|---|---|---|---|---|---|---|
| Vendored Assets this skillfoldkit/foldkit | 918 | — | ~734 | Automated safety check: Pass | MIT | |
| Counterfact Replcounterfact/api-simulator | 170 | — | ~3.2k | Automated safety check: Pass | MIT | |
| Add Namespaceswagger-api/apidom | 100 | — | ~8.1k | Automated safety check: Pass | None | |
| Add Parser Adapterswagger-api/apidom | 100 | — | ~11k | Automated safety check: Pass | None | |
| Update Ls Configswagger-api/apidom | 100 | — | ~5.9k | Automated safety check: Pass | None | |
| Sap API Stylesecondsky/sap-skills | 462 | — | ~4.4k | Automated safety check: Pass | GPL-3.0 |
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Related
Works with
Categories
Questions about Vendored Assets
What does Vendored Assets do?
Vendored assets. An agent skill from foldkit/foldkit. Vendored Assets is an agent skill from foldkit/foldkit. Vendored assets.
When should I use Vendored Assets?
Vendored Assets fits situations like: updating checked-in third-party; externally generated JavaScript.
How do I install Vendored Assets in Claude Code?
Run `npx skills add foldkit/foldkit --skill vendored-assets -a claude-code`. Or copy the skill folder (repos/effect/.agents/skills/vendored-assets in foldkit/foldkit) into .claude/skills/vendored-assets in your project. Claude Code loads it when a task matches its description.
How do I install Vendored Assets in Codex?
Run `npx skills add foldkit/foldkit --skill vendored-assets -a codex`. Or copy the skill folder (repos/effect/.agents/skills/vendored-assets in foldkit/foldkit) into .agents/skills/vendored-assets in your project. Codex loads it when a task matches its description.
Can I use Vendored Assets 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 foldkit/foldkit --skill vendored-assets -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/vendored-assets, .gemini/skills/vendored-assets, .github/skills/vendored-assets and .opencode/skills/vendored-assets in your project.
What does Vendored Assets need to run?
SKILL.md names no scripts, command-line tools or credentials: Vendored Assets is instructions for the agent only.
Does Vendored Assets 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 Vendored Assets 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 Vendored Assets use?
Vendored Assets is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Vendored Assets use?
About 734 tokens (SKILL.md is roughly 2.9k 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 Vendored Assets?
Skills that share tags, products or a category with Vendored Assets: Counterfact Repl (counterfact/api-simulator, 170 stars), Add Namespace (swagger-api/apidom, 100 stars), Add Parser Adapter (swagger-api/apidom, 100 stars) and Update Ls Config (swagger-api/apidom, 100 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Vendored Assets?
foldkit (a GitHub organization) maintains it in foldkit/foldkit, which has 918 GitHub stars. The repository holds 18 skills in this directory. The repository was last updated on October 8, 2026.
Source: foldkit/foldkit on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.