Slash Command

Prune

Delete pending instincts older than 30 days that were never promoted

Type: Slash Command
Repository: affaan-m/ECC
GitHub stars: 268k
License: MIT
Repo last updated: Sep 24, 2026
Source file: commands/prune.md

What Prune is

Prune is a slash command published in the affaan-m/ECC repository on GitHub, which has about 268k stars. The repository describes itself as: “The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor and beyond.”

A slash command is a reusable prompt saved as a markdown file and run by typing its name after a slash. In Claude Code, custom commands have been merged into skills: a file in .claude/commands/ and a skill folder in .claude/skills/ both create the same kind of command, and existing command files keep working.

Prune gives you a repeatable way to run the same instructions without retyping them, optionally with arguments.

How to install Prune

Claude Code

Download prune.md from the repository.
Save it to ~/.claude/commands/ (all projects) or .claude/commands/ (one project). As a skill, you can instead save it as ~/.claude/skills/<name>/SKILL.md.
Run it by typing / followed by its name.

Claude Cowork

Turn the command into a skill: create a folder with the file saved as SKILL.md and zip it.
In Customize → Skills, click +, then upload the ZIP.
Run it from any task with / and the skill name.

New to extending Cowork? Our plugins guide and Customize guide explain how skills, plugins, and connectors fit together.

Inside the source file

An excerpt from commands/prune.md, shared under the repository's MIT license. Read the full file on GitHub.

Remove expired pending instincts that were auto-generated but never reviewed or promoted.

Implementation

Run the instinct CLI using the plugin root path:

python3 "${CLAUDE_PLUGIN_ROOT}/skills/continuous-learning-v2/scripts/instinct-cli.py" prune

Or if CLAUDE_PLUGIN_ROOT is not set (manual installation):

python3 ~/.claude/skills/continuous-learning-v2/scripts/instinct-cli.py prune

Usage

/prune                    # Delete instincts older than 30 days
/prune --max-age 60      # Custom age threshold (days)
/prune --dry-run         # Preview without deleting

Before you install

Read the whole file first. Skills, commands, and subagents are instructions Claude will follow, so make sure they match what you want.
Check which tools, scripts, or MCP servers it uses. Local servers and scripts run with your permissions.
Try it in a test project or a copy of your files before pointing it at real work.
Pin the version you tested, and review changes before updating.
Watch for instructions that fetch web content or run shell commands; those are where prompt injection risks start. See our prompt injection guide.

FAQ

What is Prune?

Prune is a slash command for Claude Code and Claude Cowork from the affaan-m/ECC repository on GitHub. Delete pending instincts older than 30 days that were never promoted

How do I install Prune in Claude Code?

Download prune.md from the repository. Save it to ~/.claude/commands/ (all projects) or .claude/commands/ (one project). As a skill, you can instead save it as ~/.claude/skills/<name>/SKILL.md. Run it by typing / followed by its name.

Can I use Prune in Claude Cowork?

Turn the command into a skill: create a folder with the file saved as SKILL.md and zip it. In Customize → Skills, click +, then upload the ZIP. Run it from any task with / and the skill name.

Is Prune safe to install?

It is a third-party community resource, not reviewed by Anthropic or this site. Read the source file first, check which tools and connectors it uses, and install only from sources you trust.

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Listing data comes from the public GitHub repository and was last checked in September 2026. Excerpts are © their authors and shared under MIT. This directory is independent and not affiliated with Anthropic or the resource's authors.