bun SKILL.md skillA
bun from xobotyi/cc-foundry is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add xobotyi/cc-foundry/bun@git:20261029.e458a11Pins git:20261029.e458a11 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- xobotyi/cc-foundry
- Path
plugins/javascript/skills/bun/SKILL.md- Versions recorded
- 5
- Latest version
- git:20261029.e458a11, committed Oct 29, 2026
- First version recorded
- Mar 14, 2026
- Size
- 22,406 bytes
- Repository stars
- 23
- License
- MIT
Write and review Bun: the Bun-native API surface against its `node:` equivalents, the HTTP and WebSocket server, file and process I/O, the shell, the data clients, `bun:test`, the bundler and compiled binaries, and the package manager.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
Bun's value is that the runtime, the toolchain, and the batteries are one binary. Two biases decide most calls: - **Reach for what already ships.** A dependency earns its place by doing what `Bun.*`, `bun:*`, and the bundled toolchain do not. Adding one that duplicates a built-in is a defect. - **Write `node:` only where Bun has no native equivalent, or where the code must also run under Node.** Portability is a requirement to state, not a habit to keep. ## Release Version Bun ships one stable line and no long-lived support branches, so `bun upgrade` moves a machine to whatever release is newest. Pin the version in CI (`oven-sh/setup-bun`, `bun-version`) so a developer machine and a runner agree, and state the release a feature needs in the sentence that uses it. Never write "the latest version supports X". The rules below assume 1.3.0 or later unless a version anchor says otherwise. Floors for the features these rules reference: - **1.3.0** — `Bun.sql` for MySQL, MariaDB, and SQLite; `Bun.redis`; `Bun.secrets`; `Bun.YAML`; catalogs; `test.concurrent`, `test.serial`, and `--concurrent`; `--randomize`; `expectTypeOf` …
Read the whole file at its exact version.
How to install
mdr add xobotyi/cc-foundry/bun@sha256:2ee9b120f106836bThe line at the top of this page pins the label git:20261029.e458a11, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_znqxci7rkhubmqxl)
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Versions
The registry has recorded 5 versions of this file, between Mar 14, 2026 and Oct 29, 2026, about one every 57 days. Its first recorded version is graded B and its latest A.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261029.e458a11 latest | 2026-10-29 | e458a11 | 22,406 B | A | view · diff |
| git:20261013.953409c | 2026-10-13 | 953409c | 22,393 B | A | view · diff |
| git:20260902.0bd9521 | 2026-09-02 | 0bd9521 | 22,092 B | A | view · diff |
| git:20260902.915f96c | 2026-09-02 | 915f96c | 22,410 B | A | view · diff |
| git:20260314.9629b35 | 2026-03-14 | 9629b35 | 10,355 B | B | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (22406 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
xobotyi/cc-foundry · 23 stars · license MIT · pushed 2026-10-31 · branch master
API
GET https://markdownregistry.com/api/v1/artifacts/art_znqxci7rkhubmqxl GET https://markdownregistry.com/api/v1/resolve?ref=xobotyi/cc-foundry/bun GET https://markdownregistry.com/api/v1/blob/2ee9b120f106836b6d15db29c03f3067d459401fe02cd067bfe75bbacf5f95c4
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.
More from xobotyi/cc-foundry
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