update-changelog

update-changelog is a skill for Claude Code, Codex from kombohq/company-brain. It costs 51 tokens per session (538 once invoked), scanned A, original, MIT.

A guide for adding a short entry to a project's CHANGELOG.md file. A changelog is a record of user-visible changes between software releases.

In plain words
What is it for?
Use it after a user-facing feature, behavior change, bug fix, or removal to add a terse bullet under the Unreleased section.
Why use it?
It keeps feature changes and bug fixes easy to find and helps ensure release notes are not forgotten.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: installed under .agents/ (shared by several agents).

Good fit Use it after a user-facing feature, behavior change, bug fix, or removal to add a terse bullet under the Unreleased section.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/kombohq/company-brain/update-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.

Any agent
npx skills add kombohq/company-brain --skill update-changelog
Clone the repo
git clone --depth 1 https://github.com/kombohq/company-brain

Made for: Claude Code, Codex.

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 update-changelog

README.md
[![agentmods](https://agentmods.dev/badge/skills/kombohq/company-brain/update-changelog/github.svg)](https://agentmods.dev/skills/kombohq/company-brain/update-changelog)
Your own site
<a href="https://agentmods.dev/skills/kombohq/company-brain/update-changelog"><img src="https://agentmods.dev/badge/skills/kombohq/company-brain/update-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 update-changelog

Your own site · 80×15
<a href="https://agentmods.dev/skills/kombohq/company-brain/update-changelog"><img src="https://agentmods.dev/badge/skills/kombohq/company-brain/update-changelog.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 51 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 538 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 $0.00051 $0.00538
Opus 5 $0.00026 $0.00269
Sonnet 5 $0.00010 $0.00108
Haiku 4.5 $0.00005 $0.00054

Measured 11d ago against content hash fbcefb99ec9a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

update-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 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.

.agents/skills/update-changelog/SKILL.md · 70 lines

What it actually says

Update the changelog

This repo keeps a human-scannable CHANGELOG.md at the repo root (Keep a Changelog format). Every user-facing change records a terse bullet under ## [Unreleased] so a release can be cut at any time from accumulated entries.

When to add an entry

  • Add one for: a new feature, a behavior change, a bug fix, a removed feature, or anything a user of this repo would notice.
  • Skip: pure internal churn (refactors, formatting, test-only changes, dep bumps) unless it's notable enough that someone would want to know.

When in doubt, add a short bullet. A missing entry is worse than a small one.

How to add it

Edit CHANGELOG.md directly. Put the bullet under ## [Unreleased], in the right group, creating the ### subheading if it isn't there yet:

  • ### Added — new features
  • ### Changed — changes to existing behavior
  • ### Fixed — bug fixes
  • ### Removed — removed features

Style

  • One terse bullet, imperative mood, matching the brevity of existing entries.
  • No version number and no date — those are filled in at release time.
  • Name the connector/area when it helps, e.g. Slack connector: sync channel history.

Example

Before:

## [Unreleased]

## [1.0.0] - 2026-06-18

After adding a new connector:

## [Unreleased]

### Added

- Slack connector: sync channel history into `context/`

## [1.0.0] - 2026-06-18

Releasing

scripts/release.sh (run via bun run release) consumes everything under ## [Unreleased] at release time, rolling it into a dated version section and opening a fresh empty [Unreleased]. Keeping [Unreleased] current as you work is what makes the next release accurate, so add the bullet in the same change that introduces the feature or fix.

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 · 70 lines · 51 tokens per session scan A fbcefb99ec9a

Subscribe to this mod's changes

update-changelog is a skill published in the GitHub repository kombohq/company-brain (20 stars, last pushed 2mo ago), licensed MIT. It adds 51 tokens to every session and 538 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 2026-08-30.

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