agent-builder skillA
agent-builder is agent-read markdown (skill) from block/berd: Create, edit, or inspect Berd agents/personas stored as Agent Markdown files with YAML frontmatter under ~/.agents/agents. Use when user needs to manage Berd agents or personas..
Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.
How to install
mdr add block/berd/agent-builder@git:20260820.b4fd399mdr add block/berd/agent-builder@sha256:e576c7a5b6b4eecbPin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.
[](https://markdownregistry.com/a/art_mre5h3jn3agsxmts)
0 badge views in 30 days
Versions
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260820.b4fd399 latest | 2026-08-20 | b4fd399 | 2,577 B | A | view · diff |
| git:20260818.f31e8e0 | 2026-08-18 | f31e8e0 | 2,244 B | A | view · diff |
| git:20260812.9b88cac | 2026-08-12 | 9b88cac | 1,899 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 (2577 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
block/berd · 876 stars · license Apache-2.0 · pushed 2026-09-06 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_mre5h3jn3agsxmts GET https://markdownregistry.com/api/v1/resolve?ref=block/berd/agent-builder GET https://markdownregistry.com/api/v1/blob/e576c7a5b6b4eecb23cabaa9145abfd8cef562e469b8bafaff5f1d5fbf6486be