clean-gone

A command that finds local Git branches whose corresponding remote branches no longer exist, often after a pull request has been merged.

In plain words
What is it for?
Use it to prune remote-tracking references, review candidate branches, and safely delete only confirmed, fully merged local branches.
Why use it?
It helps remove stale local branches while protecting the current and default branches and refusing to delete unmerged work automatically.

Command for Cursor

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add commands/webhook-co/webhook/clean-gone
Clone the repo
git clone --depth 1 https://github.com/webhook-co/webhook

Made for: Cursor.

Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 248 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00000 $0.00248
Opus 5 $0.00000 $0.00124
Sonnet 5 $0.00000 $0.00050
Haiku 4.5 $0.00000 $0.00025

Measured yesterday against content hash bbf8eacef1c5, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

clean-gone scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured yesterday.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.cursor/commands/clean-gone.md · 22 lines

What it actually says

/clean-gone

Prune local branches whose remote tracking branch has been deleted (typically after their PR merged).

How to run

  1. Update remote state and prune stale remote-tracking refs: git fetch --prune.
  2. Find local branches marked [gone]: git branch -vv and select the ones whose upstream shows : gone].
  3. Show me the candidate list before deleting anything. Never delete the current branch or the default branch (main/master).
  4. Delete the confirmed branches with git branch -d (safe delete — only fully-merged branches). If one isn't merged, -d will refuse: report it and let me decide; do not silently -D (force-delete) a branch that may carry unmerged work.

Hard rules

  • Local-only operation: never touch the remote, never delete remote branches, never force-push.
  • Don't -D force-delete unless I explicitly confirm that branch — losing unmerged commits is not an acceptable way to "clean up."
  • Leave main/master and the current branch alone.
Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. yesterday First seen · 22 lines · 0 tokens per session scan A bbf8eacef1c5

Subscribe to this mod's changes

clean-gone is a command published in the GitHub repository webhook-co/webhook (0 stars, last pushed 7d ago), licensed Apache-2.0. It costs nothing until one of its globs matches a file; then it loads 248 tokens. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.