Generate an approximate playthrough test plan for the current branch.

CC-BY-SA-4.0Auto-check: notesTesting & QA

Install Test Plan

skills CLI
$ npx skills add MillenniumDawn/Millennium-Dawn --skill test-plan -a claude-code

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

GitHub CLI
$ gh skill install MillenniumDawn/Millennium-Dawn test-plan --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/MillenniumDawn/Millennium-Dawn.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/test-plan .claude/skills/test-plan && 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/

Facts

Skill name
test-plan
GitHub stars
137
Token cost
~887 tokens
SKILL.md length
419 words
Files
1
Skills in repo
24
Repo updated
First seen
Licence
CC-BY-SA-4.0

At a glance

Generate an approximate playthrough test plan for the current branch.

  • Works in 4 steps: Gather context → Derive the tests → Emit the test plan block → …
  • Tasks that involve Test generation
  • Calls git and gh

What it does

Test Plan is an agent skill from MillenniumDawn/Millennium-Dawn. Generate an approximate playthrough test plan for the current branch. Run after /open-pr to attach a test plan, or standalone to draft test steps for a diff.

Its SKILL.md is about 890 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Testing & QA, covering Test generation. The repository describes itself as: Millennium Dawn and it's codebase. The licence is CC-BY-SA-4.0.

When your agent uses it

  • Tasks that involve Test generation

Example prompts

  • “/test-plan”

Requirements

  • Pre-approved tools (allowed-tools): Bash, Read, Grep, Glob

Workflow steps

4 steps, taken from the step headings in SKILL.md.

  1. Gather context
  2. Derive the tests
  3. Emit the test plan block
  4. Output

What it can do on your machine

Read from SKILL.md and the folder at commit 5821281. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves these tools, so the agent can use them without asking each time:

    • Bash
    • Read
    • Grep
    • Glob

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Shell commands in SKILL.md call:

    • git
    • 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

Test Plan loads about 887 tokens when it runs. Until then it costs about 42 tokens; SKILL.md has 419 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~42
When it runs · the whole SKILL.md, loaded when a task matches
~887

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: notes

The automated check noted patterns worth knowing about, such as sudo or a known installer.

  • NotePre-approves every shell command (allowed-tools: Bash)SKILL.md
    allowed-tools: Bash, Read, Grep, Glob

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); files beside SKILL.md are not scanned.

SKILL.md

The full file from MillenniumDawn/Millennium-Dawn at commit 5821281, republished under its CC-BY-SA-4.0 licence (© MillenniumDawn). 419 words, ~887 tokens.

Download SKILL.mdSave it as .claude/skills/test-plan/SKILL.md (or your agent's skills folder).
name
test-plan
description
Generate an approximate playthrough test plan for the current branch. Run after /open-pr to attach a test plan, or standalone to draft test steps for a diff.
allowed-tools
Bash, Read, Grep, Glob

Generate an approximate playthrough test plan for the current branch. The model cannot run the game, so the output is a draft the human verifies and trims.

Arguments (optional, space-separated):

  • Issue numbers the plan should cover, e.g. 1354 1261

Requested arguments: $ARGUMENTS

Steps

1. Gather context
git rev-parse --abbrev-ref HEAD
git log origin/main..HEAD --oneline
git diff origin/main...HEAD --stat
git diff origin/main...HEAD

If the branch has no commits ahead of main, stop: "No commits ahead of main, nothing to test."

For each issue number in $ARGUMENTS, run gh issue view <N> --repo MillenniumDawn/Millennium-Dawn --json number,title,body to label which checks cover which issue. If gh errors, skip that number.

2. Derive the tests

From the diff, identify the affected country tags and systems (focus tree, events, decisions, ideas, AI, GUI, etc.). For each, infer the concrete in-game action a tester would take and the outcome they should confirm. Group checks into playthroughs keyed by country tag and start year (a tester loads one save and runs all its checks together). Keep every check grounded in what actually changed in the diff. Do not invent coverage for untouched systems.

3. Emit the test plan block

Use this exact structure:

### Test plan

**Playthrough A: <TAG> <year> (covers #N, #M)**

<phase header, e.g. "Game start, before unpausing:">

- [ ] `tag <TAG>`, <action>, confirm <expected outcome> (#N).
- [ ] <next checkbox> (#M).

<next phase header, e.g. "Mid-game checks (advance several in-game weeks first):">

- [ ] <action>, confirm <expected outcome> (#N).

**Playthrough B: <TAG> <year> (covers #X)**

- [ ] <action>, confirm <expected outcome> (#X).

Rules:

  • Each playthrough block starts with a bold header naming the country tag, start year, and issues it covers, e.g. **Playthrough A: ENG 2000 (covers #1400, #1515, #1516)**. Group checks under phase sub-headers when a check needs setup beyond game start (e.g. Game start, before unpausing: vs Mid-game checks (advance several in-game weeks first):).
  • Every check is a markdown task list item: start with - [ ], never bare - . One checkbox per distinct in-game action. End each with the issue ref it covers, (#N).
  • Checkbox structure: console command (if any) in backticks, then the action, then confirm <expected outcome>. Separate clauses with commas or periods, not → or —. Example: - [ ] `tag UKR`, hover an internal faction the country does not have, confirm the preview tooltip opens with the shared header (#1516).
  • Single-issue or single-tag work may use one playthrough block. Skip phase sub-headers if every check happens at game start. The - [ ] rule still applies.
  • Never use em dashes (—, U+2014) anywhere. Use a colon, period, or comma. Standing user rule.
Show full SKILL.md (74 more words)Show less
4. Output
  1. Print the test plan block for the user to paste.
  2. If a PR already exists for the branch (gh pr view --repo MillenniumDawn/Millennium-Dawn --json number,body), offer to add the ### Test plan section to the PR body via gh pr edit, above the closing BLUF line. Do not overwrite an existing test plan without confirmation.
  3. State plainly that the plan is approximate and needs human review before it is trusted.

© MillenniumDawn, CC-BY-SA-4.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in .claude/skills/test-plan of MillenniumDawn/Millennium-Dawn.

Open the folder on GitHubat commit 5821281

Compare with similar skills

Test Plan 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.

Test Plan compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Test Plan this skillMillenniumDawn/Millennium-Dawn137—~887Automated safety check: NotesCC-BY-SA-4.0
Emcaklofas/kicad-happy1.4k1 repos~2.8kAutomated safety check: PassMIT
Swig Testswig/swig6.3k—~2.3kAutomated safety check: PassCustom licence
Generate Test Cases342164796/generate-test-cases1191 repos~2.9kAutomated safety check: PassNone
Verify Cc Safety Netkenryu42/cc-safety-net1.6k—~2kAutomated safety check: PassMIT
Wioworkersio/skills190—~5.8kAutomated safety check: PassMIT

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Categories

Questions about Test Plan

What does Test Plan do?

Generate an approximate playthrough test plan for the current branch. Test Plan is an agent skill from MillenniumDawn/Millennium-Dawn. Generate an approximate playthrough test plan for the current branch.

When should I use Test Plan?

Test Plan fits situations like: tasks that involve Test generation.

How do I install Test Plan in Claude Code?

Run `npx skills add MillenniumDawn/Millennium-Dawn --skill test-plan -a claude-code`. Or copy the skill folder (.claude/skills/test-plan in MillenniumDawn/Millennium-Dawn) into .claude/skills/test-plan in your project. Claude Code loads it when a task matches its description.

How do I install Test Plan in Codex?

Run `npx skills add MillenniumDawn/Millennium-Dawn --skill test-plan -a codex`. Or copy the skill folder (.claude/skills/test-plan in MillenniumDawn/Millennium-Dawn) into .agents/skills/test-plan in your project. Codex loads it when a task matches its description.

Can I use Test Plan 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 MillenniumDawn/Millennium-Dawn --skill test-plan -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/test-plan, .gemini/skills/test-plan, .github/skills/test-plan and .opencode/skills/test-plan in your project.

What does Test Plan need to run?

Going by SKILL.md and its folder, Test Plan needs the command-line tools its instructions call (git and gh). Its frontmatter pre-approves these tools: Bash, Read, Grep, Glob.

Does Test Plan 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 Test Plan safe to install?

Our automated static check of SKILL.md found notes only (pre-approves every shell command (allowed-tools: bash)), nothing it rates as a warning. It is not a guarantee. Review the folder before installing.

What licence does Test Plan use?

Test Plan is published under the CC-BY-SA-4.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Test Plan use?

About 887 tokens (SKILL.md is roughly 3.5k 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 Test Plan?

Skills that share tags, products or a category with Test Plan: Emc (aklofas/kicad-happy, 1.4k stars), Swig Test (swig/swig, 6.3k stars), Generate Test Cases (342164796/generate-test-cases, 119 stars) and Verify Cc Safety Net (kenryu42/cc-safety-net, 1.6k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Test Plan?

MillenniumDawn (a GitHub organization) maintains it in MillenniumDawn/Millennium-Dawn, which has 137 GitHub stars. The repository holds 24 skills in this directory. The repository was last updated on October 8, 2026.

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