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emacs

GNU Emacs as a stateful Lisp machine for agents — daemon, moo-* protocol, emacs.py router, emacs:// URLs, spoken grammar, play-learn-lift.

Skill by SimHacker

IndexedMIT★ 60
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Works with Claude Code, Claude apps, Codex, Cursor, Gemini CLI, GitHub Copilot, VS Code, OpenCode, Goose, Windsurf. Read the repository before you give any tool access to your data.

npx agentmarket install skill/simhacker-emacs

Asks which of your tools to add it to (Claude Code, Codex, Cursor, VS Code, Windsurf, Gemini CLI, Claude Desktop) and shows the change first. See https://agentmart.dev/cli.

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About

GNU Emacs as a stateful Lisp machine for agents — daemon, moo-* protocol, emacs.py router, emacs:// URLs, spoken grammar, play-learn-lift.

Use cases: writing

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Permissions

What this skill can do and what it asks for, from its SKILL.md. Checked Oct 25, 2026.

Tools
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Secrets
None asked for
Install scripts
None found
Runs as
Python package

Network hosts it talks to 1

  • codeload.github.com · found in install command

Files it touches

  • ~/.claude/skills/emacs

What's inside

Skill name
emacs
Description
GNU Emacs as a stateful Lisp machine for agents — daemon, moo-* protocol, emacs.py router, emacs:// URLs, spoken grammar, play-learn-lift.
License
MIT
Instructions
55 lines in SKILL.md · view on GitHub

Before installing

  • Ships executable scripts

Agent Skills spec issues

  • allowed-tools: must be a space-separated string

Files (16)

  • CARD.yml
  • DESIGN.md
  • GLANCE.yml
  • SKILL.md
  • .gitkeep · logs/
  • README.md · reference/
  • cursor-aiService-prompts.yaml · reference/
  • emacs.py · scripts/
  • spoken-grammar.yml
  • init.el · templates/
  • moo-macros.el · templates/
  • moo-oneshot.el · templates/
  • moo-protocol.el · templates/
  • moo-structural.el · templates/
  • moo-template.el · templates/
  • servers.yml.example · templates/

SKILL.md (first lines)

# Emacs (MOO)

## What this skill is

GNU Emacs with `emacs --daemon` is a **long-lived evaluator**: buffers, modes, and elisp are the program. Agents and humans share **persistent context** (open files, marks, narrowing, undo). The **sister script** `scripts/emacs.py` adapts `emacsclient` for tools: **JSON-shaped results**, **named targets**, **batching**, **logging**, and **`emacs://`** routing.

This is **not** a thin “run one shell command” wrapper. The value is the **protocol**: what to return after each operation, how to name multiple daemons, how speech and intent map to elisp.

## Three interaction tiers

1. **Intent** — `(moo-rename-symbol "a" "b" :scope 'project)` style (to be implemented in elisp; names in CARD).
2. **Structural** — `(moo-in-defun "foo" ...)` , `(moo-try BODY)` with `atomic-change-group`.
3. **Raw elisp** — `(emacs.py eval "(+ 1 2)")` or direct `emacsclient --eval`.

## Sister script: `scripts/emacs.py`

Subcommands (see `--help`):

- `status` — daemon up, current target
- `eval SEXP` — evaluate, print JSON `{ok, value, error}` where possible
- `target list | current | use NAME` — `~/.emacs.d/moo/servers.yml`
- `speak TEXT` — placeholder: will use `spoken-grammar.yml` + optional local LLM
- `url EMACS_URL` — resolve and dispatch (staged implementation)

Environment:

- `EMACSCLIENT` — path to emacsclient (default: `emacsclient`)
- `MOO_EMACS_TARGET` — default target name

Logs: append JSON lines to `.moollm/skills/emacs/logs/command-log.jsonl` when run from a MOOLLM workspace.

## Elisp side (templates/)

Install copies under `~/.emacs.d/moo/` (see `templates/init.el`):

- `moo-protocol.el` — `moo-with-effects`, standard result plist
- `moo-structural.el` — structural helpers
- `moo-oneshot.el` — oneshot define / log / promote
- `moo-macros.el` — macro capture and schema export hooks

## Integration

- **play-learn-lift** — oneshot log + macro list + command-log.jsonl
- **cursor-mirror** — optional: correlate agent edits with Emacs log
- **yaml-jazz** — `spoken-grammar.yml` comments carry semantics

## Cursor prompt / aiService snapshot

Optional: [reference/cursor-aiService-prompts.yaml](reference/cursor-aiService-prompts.yaml) holds `aiService.prompts` and `aiService.generations` from the workspace DB (see [reference/README.md](reference/README.md)). Regenerate with `cursor-mirror export-prompts <workspace-id> -o …`.

## Part of MOOLLM

Repo [README](../../README.md), [skills/README.md](../README.md).

From SimHacker/moollm, MIT.

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Stars
60
Forks
5
Open issues
1
Last commit (this folder)
Oct 20, 2026 (7 days ago)

From GitHub (fetched Oct 24, 2026).

Details

License
MIT
First seen
Oct 24, 2026
Last checked
Oct 24, 2026

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Cite this page

emacs skill. Agent Mart. https://agentmart.dev/skills/simhacker-emacs (last updated 2026-10-24)