finishing-a-development-branch

finishing-a-development-branch is a skill for Claude Code, Codex from wazimmerman/zimster. It costs 30 tokens per session (848 once invoked), scanned A, original, MIT.

A checklist for finishing coding work and handing it off safely, including inspecting the repository and deciding what happens to the changes.

In plain words
What is it for?
It helps review Git status and diffs, identify the correct base branch, check commits and worktrees, and report whether changes should be committed, handed off, or left uncommitted.
Why use it?
It prevents missing new or untracked files, confusing unrelated edits with your work, or claiming that a branch is ready without evidence.

Skill for Claude CodeCodex

Written for Claude Code and Codex: shipped in a Claude Code plugin, but also agents/openai.yaml present.

Part of the zimster plugin — 12 skills, 1 command, 4 agents, 1 hook shipped together

Good fit It helps review Git status and diffs, identify the correct base branch, check commits and worktrees, and report whether changes should be committed, handed off, or left uncommitted.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/wazimmerman/zimster/finishing-a-development-branch
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.

Any agent
npx skills add wazimmerman/zimster --skill finishing-a-development-branch
Clone the repo
git clone --depth 1 https://github.com/wazimmerman/zimster

Made for: Claude Code, Codex.

Or install zimster, the plugin that ships this one along with the rest of its 12 skills, 1 command, 4 agents, 1 hook.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for finishing-a-development-branch

README.md
[![agentmods](https://agentmods.dev/badge/skills/wazimmerman/zimster/finishing-a-development-branch/github.svg)](https://agentmods.dev/skills/wazimmerman/zimster/finishing-a-development-branch)
Your own site
<a href="https://agentmods.dev/skills/wazimmerman/zimster/finishing-a-development-branch"><img src="https://agentmods.dev/badge/skills/wazimmerman/zimster/finishing-a-development-branch/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for finishing-a-development-branch

Your own site · 80×15
<a href="https://agentmods.dev/skills/wazimmerman/zimster/finishing-a-development-branch"><img src="https://agentmods.dev/badge/skills/wazimmerman/zimster/finishing-a-development-branch.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 30 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 848 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00030 $0.00848
Opus 5 $0.00015 $0.00424
Sonnet 5 $0.00006 $0.00170
Haiku 4.5 $0.00003 $0.00085

Measured 11d ago against content hash 7b6a6a6fda84, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

finishing-a-development-branch 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 11d 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.

plugins/zimster/skills/finishing-a-development-branch/SKILL.md · 107 lines

How it starts

The opening of the file, as written. The whole thing — 107 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Finishing a Development Branch

This workflow always runs at the end of owner-driven development, including no-commit and disposable-repository work.

1. Inspect complete repository state

Run and record:

git rev-parse --show-toplevel
git branch --show-current
git status --short
git diff
git diff --cached
git log --oneline <merge-base>..HEAD

Identify base branch/merge base, linked-worktree state, commits belonging to the work, unrelated user changes, staged files, unstaged files, and untracked files. Generate a change-snapshot or read every untracked file; git diff alone cannot establish readiness for brand-new files.

For every dispatch v2 record, require a consumed authoritative proposal, requested/effective routing accounting, and persistent-owner acceptance. A pending or rejected delegated implementation cannot satisfy completion.

A harness-managed detached checkout may require native branch/handoff controls. Report limitations instead of pretending push/PR capability.

2. Enforce Git disposition

  • Existing project on default branch without explicit authorization should not have reached implementation; stop and surface the policy breach.
  • On an isolated feature branch/worktree, verified vertical slices should be committed unless the user said not to commit.
  • In a disposable/test repo explicitly intended for direct work, default branch and uncommitted output are permitted when that was the chosen policy.
  • When the user says “do not commit,” do not stage or commit; report the exact verified but uncommitted files.
  • A delegated implementer commit is accepted only from its dedicated branch/worktree and explicit commit grant.

Never leave verified but uncommitted work implicit. State whether it is staged, unstaged, or untracked and what the user must preserve.

3. Verify final code

Load verification-before-completion. Run canonical required gates fresh on the final tree and record exact test discovery/counts, warnings, ignored/skipped tests, and external/manual evidence. Re-read the mission line by line.

Read the full file on GitHub · 107 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 11d ago First seen · 107 lines · 30 tokens per session scan A 7b6a6a6fda84

Subscribe to this mod's changes

finishing-a-development-branch is a skill published in the GitHub repository wazimmerman/zimster (2 stars, last pushed 9d ago), licensed MIT. It adds 30 tokens to every session and 848 once invoked, about $0.0002 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 2026-08-31.

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