Agent skill

Nightly Changelog

Generate concise LunCoSim nightly GitHub release notes with platform downloads, installation guidance, an AI-agent mission prompt, and a changelog link.

Apache-2.0Auto-check passedDevelopment

Install Nightly Changelog

skills CLI

$ npx skills add LunCoSim/lunco-sim --skill nightly-changelog -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI

$ gh skill install LunCoSim/lunco-sim nightly-changelog --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy

$ git clone --depth 1 https://github.com/LunCoSim/lunco-sim.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/nightly-changelog .claude/skills/nightly-changelog && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Paste into Claude Code

Install the "nightly-changelog" agent skill from https://github.com/LunCoSim/lunco-sim/tree/main/skills/nightly-changelog into .claude/skills/nightly-changelog/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "nightly-changelog", then confirm the skill loads.

Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

$skill-installer

$skill-installer install https://github.com/LunCoSim/lunco-sim/tree/main/skills/nightly-changelog

Type this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.

skills CLI

$ npx skills add LunCoSim/lunco-sim --skill nightly-changelog -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install LunCoSim/lunco-sim nightly-changelog --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/LunCoSim/lunco-sim.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/nightly-changelog .agents/skills/nightly-changelog && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "nightly-changelog" agent skill from https://github.com/LunCoSim/lunco-sim/tree/main/skills/nightly-changelog into .agents/skills/nightly-changelog/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "nightly-changelog", then confirm the skill loads.

Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add LunCoSim/lunco-sim --skill nightly-changelog -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install LunCoSim/lunco-sim nightly-changelog --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/LunCoSim/lunco-sim.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/nightly-changelog .cursor/skills/nightly-changelog && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "nightly-changelog" agent skill from https://github.com/LunCoSim/lunco-sim/tree/main/skills/nightly-changelog into .cursor/skills/nightly-changelog/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "nightly-changelog", then confirm the skill loads.

Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

gemini skills install

$ gemini skills install https://github.com/LunCoSim/lunco-sim.git --path skills/nightly-changelog

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add LunCoSim/lunco-sim --skill nightly-changelog -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install LunCoSim/lunco-sim nightly-changelog --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/LunCoSim/lunco-sim.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/nightly-changelog .gemini/skills/nightly-changelog && rm -rf skills-src

Use ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.

Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/

Paste into Gemini CLI

Install the "nightly-changelog" agent skill from https://github.com/LunCoSim/lunco-sim/tree/main/skills/nightly-changelog into .gemini/skills/nightly-changelog/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "nightly-changelog", then confirm the skill loads.

Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

GitHub CLI

$ gh skill install LunCoSim/lunco-sim nightly-changelog

Installs for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).

skills CLI

$ npx skills add LunCoSim/lunco-sim --skill nightly-changelog -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/LunCoSim/lunco-sim.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/nightly-changelog .github/skills/nightly-changelog && rm -rf skills-src

Use ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.

GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/

Paste into GitHub Copilot

Install the "nightly-changelog" agent skill from https://github.com/LunCoSim/lunco-sim/tree/main/skills/nightly-changelog into .github/skills/nightly-changelog/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "nightly-changelog", then confirm the skill loads.

GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add LunCoSim/lunco-sim --skill nightly-changelog -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install LunCoSim/lunco-sim nightly-changelog --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/LunCoSim/lunco-sim.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/nightly-changelog .opencode/skills/nightly-changelog && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "nightly-changelog" agent skill from https://github.com/LunCoSim/lunco-sim/tree/main/skills/nightly-changelog into .opencode/skills/nightly-changelog/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "nightly-changelog", then confirm the skill loads.

OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

Facts

Skill name: nightly-changelog
GitHub stars: 107
Token cost: ~1.1k tokens
SKILL.md length: 495 words
Files: 3 (incl. scripts)
Skills in repo: 40
Repo updated: Oct 11, 2026
First seen: Oct 7, 2026
Licence: Apache-2.0

At a glance

Generate concise LunCoSim nightly GitHub release notes with platform downloads, installation guidance, an AI-agent mission prompt, and a changelog link.

Works in 6 steps: Inspect repository state without… → Establish the range. By default, use the… → Generate the Markdown with the bundled… → …
Preparing a nightly build
SKILL.md covers Workflow and Output Contract
Runs Python scripts from its folder; calls git, python3 and gh

What it does

Nightly Changelog is an agent skill from LunCoSim/lunco-sim. Generate concise LunCoSim nightly GitHub release notes with platform downloads, installation guidance, an AI-agent mission prompt, and a changelog link. Use when preparing a nightly build, updating docs/releases Markdown, or wiring release notes into .github/workflows/nightly.yml. Preserve dirty worktrees and do not edit Rust source.

Its SKILL.md is about 1.1k tokens, which your agent loads only when the skill is triggered. The skill folder holds 4 other files, including scripts (for example `scripts/generate_changelog.py` and `tests/test_generate_changelog.py`).

It sits in Development, covering Changelog and release notes. It works with GitHub, GitHub Actions and Rust. The repository describes itself as: Collaborative Multiphysics Cosimulator For Space Missions 🌎🚀🌚. The licence is Apache-2.0.

When your agent uses it

Preparing a nightly build
Updating docs/releases Markdown
Wiring release notes into .github/workflows/nightly.yml

Example prompts

“/nightly-changelog”

Requirements

Python 3

Workflow steps

6 steps, taken from the first numbered list in SKILL.md.

Inspect repository state without changing it
Establish the range. By default, use the newest tag matching nightly-YYYYMMDDTHHMMSSZ as the base and HEAD as the target. For a rerun…
Generate the Markdown with the bundled script
Review the standalone changelog for the complete previous-nightly change range. Review release notes separately for correct installer…
Add or update the release workflow only in .github/workflows/nightly.yml. The release job must fetch timestamped tags, generate the GitHub…
Validate without Rust edits

What it can do on your machine

Read from SKILL.md and the folder at commit 4c48dd0. It shows what the files ask for, not the result of running them.

Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
Ships 1 file in scripts/ (Python), which the agent can run.
Shell commands in SKILL.md call:
- git
- python3
- gh
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md. Its commands use git and gh, which can reach the network depending on how they are called.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Nightly Changelog loads about 1.1k tokens when it runs. Until then it costs about 88 tokens; SKILL.md has 495 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~88
When it runs · the whole SKILL.md, loaded when a task matches: ~1.1k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); the scripts in this folder are not scanned.

SKILL.md

The full file from LunCoSim/lunco-sim at commit 4c48dd0, republished under its Apache-2.0 licence (© LunCoSim). 495 words, ~1,084 tokens.

Download SKILL.mdSave it as .claude/skills/nightly-changelog/SKILL.md (or your agent's skills folder). This skill also uses 2 other files; get the full folder from GitHub.

name: nightly-changelog
description: Generate concise LunCoSim nightly GitHub release notes with platform downloads, installation guidance, an AI-agent mission prompt, and a changelog link. Use when preparing a nightly build, updating docs/releases Markdown, or wiring release notes into .github/workflows/nightly.yml. Preserve dirty worktrees and do not edit Rust source.

Nightly Changelog

Create short, human-facing notes for the exact commit being built. Keep the committed Markdown snapshot in docs/releases/ and use the generator in this skill for future GitHub Release bodies.

Workflow

Inspect repository state without changing it:
bash
```
git status --short --branch
git tag --list 'nightly-*'
git log -1 --format='%H %cI %s' HEAD
```
Preserve unrelated dirty files. The changelist describes committed changes in the release range; report uncommitted work separately and never silently include it.
Establish the range. By default, use the newest tag matching nightly-YYYYMMDDTHHMMSSZ as the base and HEAD as the target. For a rerun, pass explicit refs. Do not use the legacy rolling nightly tag as the baseline.
Generate the Markdown with the bundled script:
bash
```
python3 skills/nightly-changelog/scripts/generate_changelog.py \
  --from-ref latest \
  --to-ref HEAD \
  --release-date 2026-08-02 \
  --output docs/releases/nightly-20260802.md
```
The default format emits the standalone changelog with all non-merge changes since the previous nightly. The release-notes format emits only platform download/install instructions, a brief autoupdater availability note, a prompt for an AI agent to use the installed documentation, skills, and examples to build a mission, and a changelog link. It does not inspect or modify source files.
Review the standalone changelog for the complete previous-nightly change range. Review release notes separately for correct installer names, concise wording, the brief autoupdater note, and a working changelog link. Do not add updater mechanics or claim runtime validation to the GitHub release body.
Add or update the release workflow only in .github/workflows/nightly.yml. The release job must fetch timestamped tags, generate the GitHub body with --format release-notes from the exact github.sha, and publish those notes with the artifacts. Keep the detailed changelog output in its separate docs/releases/ snapshot; never pass that output as the GitHub release body. A local Markdown file is GitHub-visible only after the containing commit is pushed; a release body is the immediate GitHub-facing copy.

The metadata job must produce one validated release_tag together with the shared UTC timestamp, and the release job must propagate that output explicitly. Fail before any gh release create call if the value is empty or begins with untagged-; GitHub's generated untagged draft is not a valid nightly release and cannot receive the Velopack upload contract.
Validate without Rust edits:
bash
```
python3 skills/nightly-changelog/scripts/generate_changelog.py --help
quick_validate.py skills/nightly-changelog
git diff --check
git status --short
```
Run the repository's normal CI or packaging checks only when requested. Do not claim that a nightly build, upload, tag, or release exists until its GitHub Actions result is observed.

Show full SKILL.md (121 more words)Show less

Output Contract

Store committed snapshots at docs/releases/nightly-YYYYMMDD.md.
Generate changelog snapshots with the default format; generate GitHub release bodies with --format release-notes.
Include exactly the four supported human installer names.
Mention that the built-in autoupdater can download the latest nightly build.
Include the short mission-building prompt for the user's favorite AI agent.
Include all non-merge changes since the previous timestamped nightly in the standalone changelog.
Link the exact source range from the release body without copying its changes into that body.
Keep updater feeds, updater mechanics, verification claims, and worktree details out of the human-facing release body.

The generator is intentionally dependency-free beyond Python 3 and Git. Keep the logic deterministic so a rerun over the same refs produces the same changelist.

Files

SKILL.md and 2 other files (scripts) in skills/nightly-changelog of LunCoSim/lunco-sim.

SKILL.md
scripts/generate_changelog.py
tests/test_generate_changelog.py

Open the folder on GitHubat commit 4c48dd0

Compare with similar skills

Nightly Changelog next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Nightly Changelog compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Nightly Changelog this skillLunCoSim/lunco-sim	107	—	~1.1k	Automated safety check: Pass	Apache-2.0	today
Worktrunk Release Workflowmax-sixty/worktrunk	9.2k	—	~7.5k	Automated safety check: Pass	Custom licence	today
Ccb GitHubSeemSeam/claude_codex_bridge	3.6k	—	~4.9k	Automated safety check: Pass	Custom licence	yesterday
Cut Releasedelexw/claude-code-trace	376	1 repos	~1.4k	Automated safety check: Pass	MIT	yesterday
ZCF Release AutomationUfoMiao/zcf	6.1k	—	~3.4k	Automated safety check: Pass	MIT	1 mo ago
Cline CLI Release Publishercline/cline	70k	—	~3.4k	Automated safety check: Warn	Apache-2.0	today

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Questions about Nightly Changelog

What does Nightly Changelog do?

Generate concise LunCoSim nightly GitHub release notes with platform downloads, installation guidance, an AI-agent mission prompt, and a changelog link. Nightly Changelog is an agent skill from LunCoSim/lunco-sim. Generate concise LunCoSim nightly GitHub release notes with platform downloads, installation guidance, an AI-agent mission prompt, and a changelog link.

When should I use Nightly Changelog?

Nightly Changelog fits situations like: preparing a nightly build; updating docs/releases Markdown; wiring release notes into .github/workflows/nightly.yml.

How do I install Nightly Changelog in Claude Code?

Run `npx skills add LunCoSim/lunco-sim --skill nightly-changelog -a claude-code`. Or copy the skill folder (skills/nightly-changelog in LunCoSim/lunco-sim) into .claude/skills/nightly-changelog in your project. Claude Code loads it when a task matches its description.

How do I install Nightly Changelog in Codex?

Run `npx skills add LunCoSim/lunco-sim --skill nightly-changelog -a codex`. Or copy the skill folder (skills/nightly-changelog in LunCoSim/lunco-sim) into .agents/skills/nightly-changelog in your project. Codex loads it when a task matches its description.

Can I use Nightly Changelog in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add LunCoSim/lunco-sim --skill nightly-changelog -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/nightly-changelog, .gemini/skills/nightly-changelog, .github/skills/nightly-changelog and .opencode/skills/nightly-changelog in your project.

What does Nightly Changelog need to run?

Going by SKILL.md and its folder, Nightly Changelog needs Python for the scripts in its folder and the command-line tools its instructions call (git, python3 and gh). Our summary lists: Python 3.

Does Nightly Changelog access the network?

SKILL.md contains no URLs. Its commands use git and gh, which can reach the network depending on how they are called. This is read from the text; nothing was executed.

Is Nightly Changelog safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. The check reads SKILL.md only: the scripts in the folder are not scanned, so read them before running anything.

What licence does Nightly Changelog use?

Nightly Changelog is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Nightly Changelog use?

About 1.1k tokens (SKILL.md is roughly 4.3k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Nightly Changelog?

Skills that share tags, products or a category with Nightly Changelog: Worktrunk Release Workflow (max-sixty/worktrunk, 9.2k stars), Ccb GitHub (SeemSeam/claude_codex_bridge, 3.6k stars), Cut Release (delexw/claude-code-trace, 376 stars) and ZCF Release Automation (UfoMiao/zcf, 6.1k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Nightly Changelog?

LunCoSim (a GitHub organization) maintains it in LunCoSim/lunco-sim, which has 107 GitHub stars. The repository holds 40 skills in this directory. The repository was last updated on October 11, 2026.

Source: LunCoSim/lunco-sim on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.

Nightly Changelog

Install Nightly Changelog

Facts

At a glance

What it does

When your agent uses it

Example prompts

Requirements

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Nightly Changelog

Workflow

Output Contract

Files

Compare with similar skills

Similar skills

Worktrunk Release Workflow

Ccb GitHub

Cut Release

ZCF Release Automation

Cline CLI Release Publisher

Create Release Checklist

More from LunCoSim/lunco-sim

Interactive Component Authoring

Assembly Quality

Author Rhai Tests

Author Rhai Tool

Author Tutorial

Capability Discovery

Questions about Nightly Changelog

Install Nightly Changelog

Facts

At a glance

What it does

When your agent uses it

Example prompts

Requirements

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Nightly Changelog

Workflow

Output Contract

Files

Compare with similar skills

Similar skills

More from LunCoSim/lunco-sim

Related

Questions about Nightly Changelog