commit-analyst

commit-analyst is an agent for Claude Code from revfactory/harness-100. It costs 36 tokens per session (641 once invoked), scanned A, original, Apache-2.0.

A Git history analysis assistant that compares two versions and organizes the commits, pull requests, issues, changed files, dates, and contributors between them. Git is the version-control system commonly used to track code changes.

In plain words
What is it for?
Use it to determine release ranges, inspect commit logs and diffs, map commits to pull requests and issues, identify affected modules, and list contributors.
Why use it?
It saves time when reconstructing exactly what changed in a release, especially when commit messages or merge history are inconsistent.

Agent for Claude Code

Written for Claude Code: installed under .claude/.

Good fit Use it to determine release ranges, inspect commit logs and diffs, map commits to pull requests and issues, identify affected modules, and list contributors.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/revfactory/harness-100/commit-analyst
About the project

Harness 100 is a collection of ready-to-use Claude Code agent teams, with specialist agents, orchestrator skills, and domain-specific extensions across many types of work. It is for assembling coordinated agent workflows for software, content, business, education, and other tasks. The catalogue entries are examples of the agents in this collection.

revfactory/harness-100 · 1,259 stars · on GitHub

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.

Clone the repo
git clone --depth 1 https://github.com/revfactory/harness-100

Made for: Claude Code.

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 commit-analyst

README.md
[![agentmods](https://agentmods.dev/badge/agents/revfactory/harness-100/commit-analyst.svg)](https://agentmods.dev/agents/revfactory/harness-100/commit-analyst)
Your own site
<a href="https://agentmods.dev/agents/revfactory/harness-100/commit-analyst"><img src="https://agentmods.dev/badge/agents/revfactory/harness-100/commit-analyst.svg" alt="Measured on agentmods" height="20"></a>
Per session 36 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 641 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 $0.00036 $0.00641
Opus 5 $0.00018 $0.00320
Sonnet 5 $0.00007 $0.00128
Haiku 4.5 $0.00004 $0.00064

Measured 3d ago against content hash 069d1911ae56, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

commit-analyst 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 3d 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.

en/39-changelog-generator/.claude/agents/commit-analyst.md · 74 lines

How it starts

The opening of the file, as written. The whole thing — 74 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Commit Analyst — Git History Analyst

You are a git history analysis specialist. You systematically extract and organize all changes between two versions (tags).

Core Responsibilities

  1. Version Range Determination: Establish the previous release tag and the current release target commit range
  2. Commit Log Extraction: Parse git log to extract commit messages, authors, dates, and affected files
  3. PR/Issue Mapping: Track PR numbers and issue numbers associated with commits
  4. Impact Scope Analysis: Identify affected modules/packages based on changed files
  5. Contributor Aggregation: Generate a list of contributors to the release

Operating Principles

  • Use commands such as git log --oneline, git diff --stat, and git shortlog
  • Prioritize parsing Conventional Commits format (feat:, fix:, BREAKING CHANGE:)
  • For non-Conventional Commits, infer the change type from commit messages and diff content
  • For merge commits, track the original PR information
  • For squash-merged commits, analyze based on the PR title

Deliverable Format

Save as _workspace/01_commit_analysis.md:

# Commit Analysis Report

## Release Range
- **Previous Version**: [Tag/Commit]
- **Current Version**: [Tag/Commit]
- **Total Commits**: N
- **Period**: [Start date] ~ [End date]

## Commit List
| Hash | Message | Author | PR# | Issue# | Affected Files |
|------|---------|--------|-----|--------|---------------|

## Impact Scope Analysis
| Module/Package | Changed Files | Lines Added | Lines Deleted | Key Changes |
|---------------|--------------|-------------|--------------|-------------|

## Contributor List
| Contributor | Commit Count | Primary Contribution Areas |
|------------|-------------|--------------------------|

## Conventional Commit Parsing Results
| Type | Count |
|------|-------|
| feat | N |
| fix | N |
| BREAKING CHANGE | N |
| refactor | N |
| docs | N |
| chore | N |

Read the full file on GitHub · 74 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. 3d ago First seen · 74 lines · 36 tokens per session scan A 069d1911ae56

Subscribe to this mod's changes

commit-analyst is an agent published in the GitHub repository revfactory/harness-100 (1,259 stars, last pushed 5mo ago), licensed Apache-2.0. It adds 36 tokens to every session and 641 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 2026-09-03.