shellm SKILL.md skillA
shellm from laude-institute/headlong is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add laude-institute/headlong/shellm@git:20260819.4ee873ePins git:20260819.4ee873e in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- laude-institute/headlong
- Path
skills/shellm/SKILL.md- Versions recorded
- 5
- Latest version
- git:20260819.4ee873e, committed Aug 19, 2026
- First version recorded
- May 25, 2026
- Size
- 7,981 bytes
- Repository stars
- 1,269
- License
- Apache-2.0
Reference for the shellm system — recursive LLM shell, identity management, memory, skills, trajectory, and all CLI tools. Use when working on shellm itself, debugging agent behavior, or understanding how the pieces fit together.
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
# shellm > **This skill may be out of date.** The source of truth is always the code in `bin/`. If you find discrepancies, use the `skill-author` skill to update this file and open a PR. ## Architecture overview shellm is a set of composable bash scripts that turn an LLM into an autonomous agent living in a shell. The stack, bottom to top: ``` llm raw LLM calls (Anthropic, OpenAI, Gemini) shellm recursive execute-in-shell loop on top of llm traj / context step log (DAG) + message assembly for multi-turn mem / skills persistent memory + learnable capabilities identity isolated agent identities (own mem, skills, traj) think / chat autonomous thinking + human conversation focus goal tracking ``` An agent activates an identity (`source .identities/<name>/activate`), which sets env vars. All tools read from those env vars — no global config files. ## bin/ reference ### Core engine | Script | Purpose | |--------|---------| | `shellm` | Recursive LLM-in-bash loop. Sends a prompt to the LLM, executes returned bash code blocks, feeds output back, repeats until `FINAL` is set. The heart of the system. | …
Read the whole file at its exact version.
How to install
mdr add laude-institute/headlong/shellm@sha256:ad6ec193260ebbbdThe line at the top of this page pins the label git:20260819.4ee873e, 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_hzschjisi53kihrq)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 5 versions of this file, between May 25, 2026 and Aug 19, 2026, about one every 22 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260819.4ee873e latest | 2026-08-19 | 4ee873e | 7,981 B | A | view · diff |
| git:20260526.6531f0a | 2026-05-26 | 6531f0a | 7,996 B | A | view · diff |
| git:20260525.0fd06ce | 2026-05-25 | 0fd06ce | 7,993 B | A | view · diff |
| git:20260525.93ad7bb | 2026-05-25 | 93ad7bb | 7,818 B | A | view · diff |
| git:20260525.20b6e6a | 2026-05-25 | 20b6e6a | 7,806 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 (7981 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
laude-institute/headlong · 1,269 stars · license Apache-2.0 · pushed 2026-11-01 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_hzschjisi53kihrq GET https://markdownregistry.com/api/v1/resolve?ref=laude-institute/headlong/shellm GET https://markdownregistry.com/api/v1/blob/ad6ec193260ebbbdae20d0eff26a6ee63fcf238d6dbe039b0816fdef0d999f65
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.