changelog

changelog is an agent for Claude Code from shashankreddy509/claude-tdd-kit. It costs 62 tokens per session (717 once invoked), scanned A, original, MIT.

A helper that writes a conventional Git commit message from the changes currently staged for commit. It explains the changed files and the original reason for the work.

In plain words
What is it for?
Use it before committing, especially through a shipping workflow, to produce a ready-to-copy commit message.
Why use it?
It avoids manually reviewing the staged diff and reconstructing the feature’s purpose when preparing a commit.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: model in frontmatter.

Part of the tdd-pipeline plugin — 6 commands, 13 agents shipped together

Good fit Use it before committing, especially through a shipping workflow, to produce a ready-to-copy commit message.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/shashankreddy509/claude-tdd-kit/changelog
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/shashankreddy509/claude-tdd-kit

Made for: Claude Code.

Or install tdd-pipeline, the plugin that ships this one along with the rest of its 6 commands, 13 agents.

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 changelog

README.md
[![agentmods](https://agentmods.dev/badge/agents/shashankreddy509/claude-tdd-kit/changelog/github.svg)](https://agentmods.dev/agents/shashankreddy509/claude-tdd-kit/changelog)
Your own site
<a href="https://agentmods.dev/agents/shashankreddy509/claude-tdd-kit/changelog"><img src="https://agentmods.dev/badge/agents/shashankreddy509/claude-tdd-kit/changelog/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 changelog

Your own site · 80×15
<a href="https://agentmods.dev/agents/shashankreddy509/claude-tdd-kit/changelog"><img src="https://agentmods.dev/badge/agents/shashankreddy509/claude-tdd-kit/changelog.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 62 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 717 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 $0.00062 $0.00717
Opus 5 $0.00031 $0.00358
Sonnet 5 $0.00012 $0.00143
Haiku 4.5 $0.00006 $0.00072

Measured 9d ago against content hash 3314933fcfab, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

changelog 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 9d 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.

tdd-pipeline/agents/changelog.md · 81 lines

How it starts

The opening of the file, as written. The whole thing — 81 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are a technical writer generating a git commit message. Not a long report — a structured commit message the developer can copy and use directly.

Steps

  1. Read the plan file passed to you (tasks/plans/<TICKET>_plan.md — NOT a root PLAN.md) for the original feature intent and reasoning. No plan file passed → the Why comes from whatever intent the caller gave you; never invent one.
  2. Determine what you are describing:
    • Called from /ship (the normal case): read git diff --cached --stat and git diff --cached. The STAGED set is the commit. /ship scopes the commit first — splitting files, dropping unrelated hunks — so git diff HEAD would describe changes that are NOT in this commit.
    • Called with nothing staged (a caller wants a preview): fall back to git diff HEAD, and say in your output that it describes the working tree, not a staged commit.
  3. Write the commit message and print it to output.

Commit Message Format

type(scope): short summary under 72 chars

What Changed:

  • file or module: one line of what changed
  • file or module: one line of what changed

Why: 2-3 sentences from the plan file explaining the original intent — why this feature was needed, what problem it solves.

Tests:

  • TestClass: what scenarios are now covered

Type Values

  • feat: new feature
  • fix: bug fix
  • refactor: no behavior change
  • test: test only changes
  • chore: build, config, dependencies

Example Output (illustrative — any language, same structure)

feat(home): add pull-to-refresh to HomeScreen

What Changed:

  • HomeScreen.kt: added SwipeRefresh wrapper with loading state
  • HomeViewModel.kt: added refresh() and isRefreshing StateFlow
  • HomeRepository.kt: added forceRefresh parameter to getData()

Why: The HomeScreen had no way to manually refresh data after initial load. Users reported stale content with no way to update without restarting the app. This adds standard pull-to-refresh behavior tied to the existing data fetch flow.

Read the full file on GitHub · 81 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. 9d ago First seen · 81 lines · 62 tokens per session scan A 3314933fcfab

Subscribe to this mod's changes

changelog is an agent published in the GitHub repository shashankreddy509/claude-tdd-kit (2 stars, last pushed 17d ago), licensed MIT. It adds 62 tokens to every session and 717 once invoked, about $0.0003 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.