review-branch

review-branch is a skill for Claude Code from cboone/agent-harness-plugins. It costs 105 tokens per session (3,616 once invoked), scanned A, original, MIT.

A branch-review tool that compares your current Git branch with a chosen starting point and examines the changes. It can check a plan, give a brief summary, and save the review.

In plain words
What is it for?
Use it to review branch progress, compare work with a plan, create a short or detailed review, and save the result in the project.
Why use it?
It makes it easier to understand what has changed and whether the work matches the intended plan, without manually reading every commit and file difference.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the review-branch plugin — 1 skill shipped together

Good fit Use it to review branch progress, compare work with a plan, create a short or detailed review, and save the result in the project.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/cboone/agent-harness-plugins/review-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 cboone/agent-harness-plugins --skill review-branch
Clone the repo
git clone --depth 1 https://github.com/cboone/agent-harness-plugins

Made for: Claude Code.

Or install review-branch, the plugin that ships this one along with the rest of its 1 skill.

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 review-branch

README.md
[![agentmods](https://agentmods.dev/badge/skills/cboone/agent-harness-plugins/review-branch.svg)](https://agentmods.dev/skills/cboone/agent-harness-plugins/review-branch)
Your own site
<a href="https://agentmods.dev/skills/cboone/agent-harness-plugins/review-branch"><img src="https://agentmods.dev/badge/skills/cboone/agent-harness-plugins/review-branch.svg" alt="Measured on agentmods" height="20"></a>
Per session 105 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,616 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 $0.00105 $0.03616
Opus 5 $0.00053 $0.01808
Sonnet 5 $0.00021 $0.00723
Haiku 4.5 $0.00011 $0.00362

Measured 8d ago against content hash 0e4cc82ac31f, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

review-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 8d 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/review-branch/skills/review-branch/SKILL.md · 366 lines

How it starts

The opening of the file, as written. The whole thing — 366 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Review Branch

Review and evaluate all work done on the current branch: summarize changes, assess plan compliance, and evaluate code quality on its own merits.

Options

The user may provide these options inline:

  • --plan <path>: Path to a plan document to compare progress against
  • --since <ref>: Use a specific tag, branch, or commit as the base reference instead of the default branch
  • --brief: Output only a high-level summary without the detailed breakdown
  • --no-save: Skip saving the review to docs/reviews/ (default: save after outputting)

Workflow

1. Determine the Base Reference

Identify the base to diff against:

  1. If --since <ref> was specified, use that ref as the base. Verify it exists:
git rev-parse --verify <ref>
  1. Otherwise, detect the repository's default branch:
gh repo view --json defaultBranchRef --jq '.defaultBranchRef.name'

If gh is not available or the command fails, fall back to a purely local query of the remote HEAD ref:

git rev-parse --abbrev-ref origin/HEAD | sed 's@^origin/@@'
  1. Find the merge base between the base reference and HEAD:
git merge-base < base-ref > HEAD

Use this merge base as the actual comparison point for all subsequent commands. This ensures the diff only includes changes made on this branch, not changes made on the base branch since diverging.

If HEAD equals the merge base (no commits on this branch), report that there are no changes to review and stop.

2. Gather Changes

Run these commands in parallel:

# Commit history on this branch
git log --oneline < merge-base > ..HEAD

# File-level summary (insertions, deletions, renames)
git diff --stat < merge-base > ..HEAD

# Full diff for detailed analysis
git diff < merge-base > ..HEAD

# Current branch name
git branch --show-current

# Current HEAD commit (for "Reviewed through" metadata)
git rev-parse --short HEAD

Also read the commit messages in detail to understand the intent behind each change:

Read the full file on GitHub · 366 lines

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. 8d ago First seen · 366 lines · 105 tokens per session scan A 0e4cc82ac31f

Subscribe to this mod's changes

review-branch is a skill published in the GitHub repository cboone/agent-harness-plugins (2 stars, last pushed 1mo ago), licensed MIT. It adds 105 tokens to every session and 3,616 once invoked, about $0.0005 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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