builtin-tool SKILL.md skillA
builtin-tool from lobehub/lobehub is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add lobehub/lobehub/builtin-tool@git:20260926.70a3d94Pins git:20260926.70a3d94 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- lobehub/lobehub
- Path
.agents/skills/builtin-tool/SKILL.md- Versions recorded
- 5
- Latest version
- git:20260926.70a3d94, committed Sep 26, 2026
- First version recorded
- Jul 10, 2026
- Size
- 9,671 bytes
- Repository stars
- 84,260
- License
- a license file GitHub does not identify
Use for LobeHub builtin agent tools: manifests, executors, runtimes, inspectors, renders, streaming and intervention.
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
# Builtin Tool Authoring Guide
A builtin tool is a package the agent runtime can call. It ships **five faces**:
| Face | Lives in | Audience |
| -------------------- | -------------------------------------------------------------------------------------- | ------------------------------------- |
| **Manifest + types** | `src/{manifest,types,systemRole}.ts` | The LLM (tool spec + system prompt) |
| **ExecutionRuntime** | `src/ExecutionRuntime/` | Server / desktop / any runtime caller |
| **Executor** | `src/client/executor/` | Frontend (wraps stores/services) |
| **Client UI** | `src/client/{Inspector,Render,…}/` | Chat UI |
| **Registry wiring** | `packages/builtin-tools/src/*.ts` + `src/store/tool/slices/builtin/executors/index.ts` | Framework |
---
…Read the whole file at its exact version.
How to install
mdr add lobehub/lobehub/builtin-tool@sha256:7a1c06ff43028a1bThe line at the top of this page pins the label git:20260926.70a3d94, 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_fbos5jg3lqfk4dgm)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 5 versions of this file, between Jul 10, 2026 and Sep 26, 2026, about one every 19 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260926.70a3d94 latest | 2026-09-26 | 70a3d94 | 9,671 B | A | view · diff |
| git:20260926.0c6ad7a | 2026-09-26 | 0c6ad7a | 9,692 B | A | view · diff |
| git:20260925.1d45342 | 2026-09-25 | 1d45342 | 9,262 B | A | view · diff |
| git:20260907.25bf231 | 2026-09-07 | 25bf231 | 9,098 B | A | view · diff |
| git:20260710.191f3fe | 2026-07-10 | 191f3fe | 9,177 B | A | 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 (9671 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
lobehub/lobehub · 84,260 stars · license a license file GitHub does not identify · pushed 2026-11-07 · branch canary
API
GET https://markdownregistry.com/api/v1/artifacts/art_fbos5jg3lqfk4dgm GET https://markdownregistry.com/api/v1/resolve?ref=lobehub/lobehub/builtin-tool GET https://markdownregistry.com/api/v1/blob/7a1c06ff43028a1bbb09808a5699550333b7b3c19de18b32fa2244c78f81749f
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.