bun SKILL.md skillA
bun from code-yeongyu/senpi is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add code-yeongyu/senpi/bun@git:20261031.f3cb73aPins git:20261031.f3cb73a in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- code-yeongyu/senpi
- Path
packages/senpi-codemode/src/skill/bun/SKILL.md- Versions recorded
- 1
- Latest version
- git:20261031.f3cb73a, committed Oct 31, 2026
- Size
- 9,792 bytes
- Repository stars
- 504
- License
- MIT
Read before a js eval cell that spawns a process, server or PTY, installs a package, or starts a long run, and before any bun -e, script, server, CLI, test, typecheck, format, bundle, or package-management work: this session's eval js kernel runs Bun 1.4+. Bun 1.4.x builtins replace 20+ npm deps and dev tools — check here BEFORE installing or running tsc/tsgo, prettier/oxfmt, sharp, puppeteer/playwright (scraping), cheerio, marked, node-cron, node-pty, execa/zx, concurrently, serve-static…
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 1.4.x — Use the Builtins First Bun 1.4.0 (Aug 2026) through 1.4.4 (Oct 2026) ships builtins and CLIs that replace most utility npm packages and several dev tools. **Before adding a dependency, spawning a tool, or writing a workaround, check the map below — if Bun ships it, use the builtin.** Version tags (`[v1.4.3]`) in the references give exact minimums; dated notes `(2026-10-25)` mark facts measured in our own sessions. Release posts: <https://bun.com/blog/bun-v1.4> … <https://bun.com/blog/bun-v1.4.4>. ## Capability map — what you can do now | You want to... | Use | Replaces | Ref = `references/<name>.md` | |---|---|---|---| | Type-check a TS project: tsc-identical errors, 3-6x faster, no `typescript` install | `bun check --no-script`, `bun run/test/build --check` | tsc, tsgo | dev-tooling | | Format with your Prettier/oxfmt config | `bun fmt --no-script` (`--check`, `--changed`, `--staged`) | prettier, oxfmt, lint-staged | dev-tooling | | Run shell commands from JS, no `/bin/sh` | `` Bun.$`...` `` → `.nothrow().quiet().text()/.json()/.lines()` | execa, zx, shelljs | session-recipes | …
Read the whole file at its exact version.
How to install
mdr add code-yeongyu/senpi/bun@sha256:5504854ef8a67218The line at the top of this page pins the label git:20261031.f3cb73a, 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_oqnsvvsrlyir6swl)
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Versions
The registry has recorded 1 version of this file, committed on Oct 31, 2026.
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 (9792 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
code-yeongyu/senpi · 504 stars · license MIT · pushed 2026-11-01 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_oqnsvvsrlyir6swl GET https://markdownregistry.com/api/v1/resolve?ref=code-yeongyu/senpi/bun GET https://markdownregistry.com/api/v1/blob/5504854ef8a672181f744776e7e2f3d702c0931cb9e0aaf68ba5e5899385d00c
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.
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