What is chlog CLAUDE.md?

Project instructions for chlog, a command-line tool that builds a changelog from small YAML files created for each pull request.

Maintaining chlog, including building it, running tests and checks, understanding its architecture, and changing its changelog workflow.

They give a coding agent the project’s purpose, structure, build commands, tests, and library details, so it can work in the repository with the right context.

How luizjhonata/chlog configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to luizjhonata/chlog. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/luizjhonata/chlog/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/luizjhonata/chlog

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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/luizjhonata/chlog/claude-md/github.svg)](https://agentmods.dev/instructions/luizjhonata/chlog/claude-md)

Your own site

<a href="https://agentmods.dev/instructions/luizjhonata/chlog/claude-md"><img src="https://agentmods.dev/badge/instructions/luizjhonata/chlog/claude-md/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.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/luizjhonata/chlog/claude-md"><img src="https://agentmods.dev/badge/instructions/luizjhonata/chlog/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 1,165 This file is loaded in full into every session.

When invoked 1,165 The same file — it is already loaded in full.

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.

Model	Per session	Once invoked
Fable 5.1	$0.01165	$0.01165
Opus 5.5	$0.00466	$0.00466
Sonnet 5.5	$0.00233	$0.00233
Haiku 4.5	$0.00117	$0.00117

Measured 15d ago against content hash 0beb3599a488, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

chlog CLAUDE.md 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 15d 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.

CLAUDE.md · 112 lines

How it starts

The opening of the file, as written. The whole thing — 112 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md

What This Project Does

chlog is a fragment-based changelog CLI. Each PR creates a YAML fragment in .changes/unreleased/; at release time, fragments are compiled into CHANGELOG.md. Designed to eliminate merge conflicts on CHANGELOG.md in multi-developer environments.

It is a local filesystem tool — no Git, no APIs, no provider integration. Works in any repo.

Build & Development Commands

make build    # compile binary to bin/chlog
make debug    # compile with debug symbols
make run      # go run .
make install  # build + copy to ~/.local/bin

make lint, make test, and make sast require the shared pipelines repo cloned at ~/Development/github.com/rios0rios0/pipelines. Without it, use the commands below directly.

Lint (CI uses golangci-lint v2 with external config — local v1 misses issues):

~/go/bin/golangci-lint run --config ~/Development/github.com/rios0rios0/pipelines/global/scripts/languages/golang/golangci-lint/.golangci.yml ./...

Tests:

go test -tags unit -count=1 -v ./...
go test -tags unit -run "TestName" ./cmd/        # single test
go test -tags unit -run "TestName" ./internal/   # single test

Architecture

Flat, idiomatic Go. No CQRS, no DI container.

main.go — entry point, version injection via ldflags
cmd/ — Cobra commands with business logic inline
internal/ — shared types (Config, Change) with Go-native import protection

Key External Libraries

github.com/spf13/cobra — CLI framework
github.com/Masterminds/semver/v3 — semantic versioning
gopkg.in/yaml.v3 — YAML parsing
github.com/stretchr/testify — test assertions (test only)

Testing Conventions

Build tag: //go:build unit on all test files
BDD structure: // given, // when, // then
Test names: t.Run("should ... when ...", ...)
Do NOT use t.Parallel() in cmd/ tests — they use os.Chdir which is process-global
t.Parallel() is used in internal/ tests
t.TempDir() for filesystem isolation
testify/assert + testify/require

Read the full file on GitHub · 112 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.

15d ago Changed · +47 tokens per session 0beb3599a488
2mo ago First seen · 112 lines · 1,118 tokens per session scan A 163ac91b3d16

Subscribe to this mod's changes

chlog CLAUDE.md is an instructions file published in the GitHub repository luizjhonata/chlog (5 stars, last pushed 16d ago), licensed MIT. It adds 1,165 tokens to every session, about $0.0047 per session on Opus 5.5. 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.

CI and CD DevOps and cloud Git and workflow Releases changelog cicd cli go

chlog CLAUDE.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
chlog CLAUDE.mdluizjhonata/chlog	Instructions file	5	16d ago	MIT	A	1,165	Claude Code
vscode buildNext.instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	9,719	GitHub Copilot
next.js AGENTS.mdvercel/next.js	Instructions file	143k	yesterday	MIT	A	7,461	Codex, OpenCode
langchain AGENTS.mdlangchain-ai/langchain	Instructions file	149k	yesterday	MIT	A	4,680	Codex, OpenCode
vscode oss-third-party-notices.instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	5,516	GitHub Copilot
vscode copilot-instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	3,093	GitHub Copilot
deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness	Instructions file	274k	2d ago	MIT	A	4,313	Codex, OpenCode

chlog: Instructions file for Claude Code