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.
npx agentmods add commands/gopherguides/gopher-ai/prune-worktreegit clone --depth 1 https://github.com/gopherguides/gopher-aiWhat 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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00008 | $0.00889 |
| Opus 5 | $0.00004 | $0.00445 |
| Sonnet 5 | $0.00002 | $0.00178 |
| Haiku 4.5 | $0.00001 | $0.00089 |
Grade A, and why
prune-worktree scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 102 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Prune Issue Worktrees
This command safely removes worktrees for completed GitHub issues.
What it does:
- Scans for worktrees matching the
{reponame}-issue-*pattern - Checks each associated GitHub issue status
- Verifies branches are merged into the default branch
- Removes worktrees for closed/merged issues
- Cleans up local branches
Safety checks:
- Only removes closed issues with merged PRs
- Warns about uncommitted changes
- Provides manual commands for edge cases
Usage: /prune-worktree (no arguments needed)
Clear Worktree State
Clear any active worktree state so the pre-tool-use hook doesn't block cleanup commands:
!"${CLAUDE_PLUGIN_ROOT}/scripts/worktree-state.sh" clear 2>/dev/null || true
Context
- Repository name: !
basename \git rev-parse --show-toplevel 2>/dev/null` 2>/dev/null || echo "unknown"` - Default branch: !
git remote show origin 2>/dev/null | grep 'HEAD branch' | sed 's/.*: //' || echo "main" - All worktrees: !
git worktree list 2>&1 || echo "No worktrees found" - Issue worktrees: !
git worktree list 2>/dev/null | grep -E "issue-[0-9]+" || echo "No issue worktrees found"
Scan and Cleanup
CRITICAL: When executing bash commands below, use backticks (`) for command substitution, NOT $(). Claude Code has a bug that mangles $() syntax into broken commands.
CRITICAL: Before removing any worktree, first cd to the main repository directory. This prevents CWD invalidation errors if running from a worktree that will be removed:
!cd git worktree list | head -1 | awk '{print $1}'
First, get the repository name:
!REPO_NAME=basename \git rev-parse --show-toplevel``
!echo "Repository: $REPO_NAME"
List all worktrees:
!git worktree list
For each worktree matching the {REPO_NAME}-issue-* pattern:
- Extract issue number from directory name using:
grep -oE '[0-9]+' - Validate issue number is numeric (security: prevent command injection)
- Check GitHub issue status:
gh issue view "$ISSUE_NUM" --json state - Check if branch is merged:
git branch --merged "$DEFAULT_BRANCH" | grep -F "$BRANCH_NAME" - If issue is closed AND branch is merged, offer to remove
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.
- 2d ago First seen · 102 lines · 8 tokens per session scan A d243b9140a03
prune-worktree is a command published in the GitHub repository gopherguides/gopher-ai (21 stars, last pushed 2d ago), licensed MIT. It adds 8 tokens to every session and 889 once invoked, about $0.0000 per session on Opus 5. 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 2026-08-30.
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