post-launch is a skill in ethanplusai/astro-conversion-kit, last changed 21 Oct 2026. It can run shell commands, name web addresses and bundle scripts.
The moment DNS moves and for the thirty days after — verifies the cutover (DNS propagation, certificate, http and www redirects, the noindex, robots and sitemap on the live host, every redirect the audit mapped, forms, analytics, the staging copy, the old host, security headers), diffs production against the pre-launch baseline, and schedules the watch. Use when asked did the launch work, is the site live, what should I check after launch, the domain just switched, or when a site went live in the last month and something looks wrong. It is read-only and exits 0 whatever it finds.
At a glance
What it can touch
How much a skill can do, not whether it is risky.
Pattern check
Nothing flagged
That isn't proof the skill is harmless.
Commit 8beb1de · 3 Nov 2026
How the check worksPattern check: nothing flagged
That isn't proof the skill is harmless.
Install
Each tab says whether it installs commit 8beb1de, the one we checked, or the latest version.
OpenCode also looks in .agents/skills/ and ~/.agents/skills/, so use the Any agent steps.
Goose also looks in .agents/skills/ and ~/.agents/skills/, so use the Any agent steps.
Windsurf (Devin Desktop) also looks in .agents/skills/ and ~/.agents/skills/, so use the Any agent steps.
Zed also looks in .agents/skills/ and ~/.agents/skills/, so use the Any agent steps.
Roo Code also looks in .agents/skills/ and ~/.agents/skills/, so use the Any agent steps.
Factory Droid also looks in .agents/skills/ and ~/.agents/skills/, so use the Any agent steps.
Junie also looks in .agents/skills/ and ~/.agents/skills/, so use the Any agent steps.
Amp also looks in .agents/skills/ and ~/.agents/skills/, so use the Any agent steps.
No install command here reaches Kiro. Copy the skill's folder into .kiro/skills/ in your project, or ~/.kiro/skills/ for all your projects. ethanplusai/astro-conversion-kit/skills/post-launch (opens in a new tab)
Antigravity also looks in .agents/skills/, so the Any agent steps reach it with This project. For All projects, see where Antigravity looks.
Cline also looks in .claude/skills/, so the Claude Code steps reach it with This project. For All projects, see where Cline looks.
Claude Code
Pinned to commit 8beb1de, the one we checked.
From your project's root folder:
tmp="$(mktemp -d)" &&git clone -q --depth 1 --filter=blob:none --no-checkout https://github.com/ethanplusai/astro-conversion-kit.git "$tmp" &&git -C "$tmp" fetch -q --depth 1 origin 8beb1de5099a2be1ddb1d98ffc7b3682343bc420 &&git -C "$tmp" sparse-checkout set -- skills/post-launch &&git -C "$tmp" checkout -q 8beb1de5099a2be1ddb1d98ffc7b3682343bc420 &&mkdir -p .claude/skills &&mkdir .claude/skills/post-launch &&cp -R "$tmp"/skills/post-launch/. .claude/skills/post-launch/ &&rm -rf "$tmp"If Claude Code was already running and this created the skills folder, run /reload-skills.
Or install the astro-conversion plugin it ships in. Installs the latest version, not the one we checked. Installs everything in the plugin, including any hooks, MCP servers and scripts our check doesn't cover.
claude plugin marketplace add ethanplusai/astro-conversion-kit --scope project &&claude plugin install astro-conversion@astro-conversion-kit --scope projectClaude apps
Pinned to commit 8beb1de, the one we checked.
Skills in the Claude apps belong to your account rather than to a project.
Make post-launch.zip, with the skill folder at the top level:
tmp="$(mktemp -d)" &&git clone -q --depth 1 --filter=blob:none --no-checkout https://github.com/ethanplusai/astro-conversion-kit.git "$tmp" &&git -C "$tmp" fetch -q --depth 1 origin 8beb1de5099a2be1ddb1d98ffc7b3682343bc420 &&git -C "$tmp" sparse-checkout set -- skills/post-launch &&git -C "$tmp" checkout -q 8beb1de5099a2be1ddb1d98ffc7b3682343bc420 &&out="$(mktemp -d)" &&cp -R "$tmp"/skills/post-launch "$out"/post-launch &&(cd "$out" && zip -qr - post-launch) > post-launch.zip &&rm -rf "$tmp" "$out"In Claude, open Customize > Skills, select +, then + Create skill > Upload a skill, and choose post-launch.zip.
On Free, Pro and Max plans, turn on Code execution and file creation (Create and edit files in newer settings) under Settings > Capabilities.
Codex
Pinned to commit 8beb1de, the one we checked.
From your project's root folder:
tmp="$(mktemp -d)" &&git clone -q --depth 1 --filter=blob:none --no-checkout https://github.com/ethanplusai/astro-conversion-kit.git "$tmp" &&git -C "$tmp" fetch -q --depth 1 origin 8beb1de5099a2be1ddb1d98ffc7b3682343bc420 &&git -C "$tmp" sparse-checkout set -- skills/post-launch &&git -C "$tmp" checkout -q 8beb1de5099a2be1ddb1d98ffc7b3682343bc420 &&mkdir -p .agents/skills &&mkdir .agents/skills/post-launch &&cp -R "$tmp"/skills/post-launch/. .agents/skills/post-launch/ &&rm -rf "$tmp"Codex picks up new skills on its own; restart it if this one does not appear.
Cursor
Pinned to commit 8beb1de, the one we checked.
From your project's root folder:
tmp="$(mktemp -d)" &&git clone -q --depth 1 --filter=blob:none --no-checkout https://github.com/ethanplusai/astro-conversion-kit.git "$tmp" &&git -C "$tmp" fetch -q --depth 1 origin 8beb1de5099a2be1ddb1d98ffc7b3682343bc420 &&git -C "$tmp" sparse-checkout set -- skills/post-launch &&git -C "$tmp" checkout -q 8beb1de5099a2be1ddb1d98ffc7b3682343bc420 &&mkdir -p .cursor/skills &&mkdir .cursor/skills/post-launch &&cp -R "$tmp"/skills/post-launch/. .cursor/skills/post-launch/ &&rm -rf "$tmp"Copilot & VS Code
Pinned to commit 8beb1de, the one we checked.
From your project's root folder:
tmp="$(mktemp -d)" &&git clone -q --depth 1 --filter=blob:none --no-checkout https://github.com/ethanplusai/astro-conversion-kit.git "$tmp" &&git -C "$tmp" fetch -q --depth 1 origin 8beb1de5099a2be1ddb1d98ffc7b3682343bc420 &&git -C "$tmp" sparse-checkout set -- skills/post-launch &&git -C "$tmp" checkout -q 8beb1de5099a2be1ddb1d98ffc7b3682343bc420 &&mkdir -p .github/skills &&mkdir .github/skills/post-launch &&cp -R "$tmp"/skills/post-launch/. .github/skills/post-launch/ &&rm -rf "$tmp"In a running Copilot CLI session, run /skills reload.
Or install it with gh skill, which also installs the commit we checked. Needs GitHub CLI 2.90 or later.
gh skill install ethanplusai/astro-conversion-kit skills/post-launch/SKILL.md@8beb1de5099a2be1ddb1d98ffc7b3682343bc420 --agent github-copilot --scope projectGemini CLI
Pinned to commit 8beb1de, the one we checked.
From your project's root folder:
tmp="$(mktemp -d)" &&git clone -q --depth 1 --filter=blob:none --no-checkout https://github.com/ethanplusai/astro-conversion-kit.git "$tmp" &&git -C "$tmp" fetch -q --depth 1 origin 8beb1de5099a2be1ddb1d98ffc7b3682343bc420 &&git -C "$tmp" sparse-checkout set -- skills/post-launch &&git -C "$tmp" checkout -q 8beb1de5099a2be1ddb1d98ffc7b3682343bc420 &&mkdir -p .gemini/skills &&mkdir .gemini/skills/post-launch &&cp -R "$tmp"/skills/post-launch/. .gemini/skills/post-launch/ &&rm -rf "$tmp"In a running session, run /skills reload.
Or use Gemini CLI’s own installer. Installs the latest version, not the one we checked.
gemini skills install https://github.com/ethanplusai/astro-conversion-kit.git --path skills/post-launch --scope workspaceAny agent
Pinned to commit 8beb1de, the one we checked.
OpenCode, Goose, Windsurf (Devin Desktop), Zed, Roo Code, Factory Droid, Junie, Amp and Antigravity read .agents/skills in a project.
From your project's root folder:
tmp="$(mktemp -d)" &&git clone -q --depth 1 --filter=blob:none --no-checkout https://github.com/ethanplusai/astro-conversion-kit.git "$tmp" &&git -C "$tmp" fetch -q --depth 1 origin 8beb1de5099a2be1ddb1d98ffc7b3682343bc420 &&git -C "$tmp" sparse-checkout set -- skills/post-launch &&git -C "$tmp" checkout -q 8beb1de5099a2be1ddb1d98ffc7b3682343bc420 &&mkdir -p .agents/skills &&mkdir .agents/skills/post-launch &&cp -R "$tmp"/skills/post-launch/. .agents/skills/post-launch/ &&rm -rf "$tmp"Or use the skills CLI from skills.sh. Installs the latest version, not the one we checked. The skills CLI reports installs to skills.sh unless you set DISABLE_TELEMETRY=1.
npx skills@1.7.4 add ethanplusai/astro-conversion-kit --skill post-launchWhat it can touch
From the files and frontmatter at commit 8beb1de. This is how much a skill can do, not whether it is risky.
Pattern check
Pattern check: nothing flagged · commit 8beb1de · 3 Nov 2026
We checked every text file in this skill, at commit 8beb1de on 3 Nov 2026, against 45 published patterns such as download-and-run commands, hidden text and credential access. We don't run the skill, we don't read the web pages it points to, and we can't judge everything its instructions might lead an agent to do. In published tests, pattern checks like this one missed most malicious skills. Read the skill before you install it — especially anything it asks you to download or run.
How the check worksReport an incorrect finding
Outside links we did not follow
- https://$
Format check
Each agent reads SKILL.md a little differently. We check the file against each one's published rules; we don't run the skill in any agent.
Agent Skills specPasses
The open format from agentskills.io, held to the strictest version of each rule among the agents we check.
- Note
The first sentence of the description is 355 characters. Agents shorten long descriptions, so lead with the main job. D8
Fix: Start with one short sentence that names the job.
- Note
There is no license field, so readers can't tell whether they may reuse the skill. O2
Fix: Add license: with an SPDX name such as MIT or Apache-2.0, or the name of a bundled licence file.
- Note
Reference files over 100 lines with no table of contents at the top: references/baseline-diff.md (111 lines), references/cutover-day.md (197 lines), references/reading-the-report.md (111 lines) and references/thirty-day-watch.md (125 lines). B5
Fix: Add a short list of the sections at the top of each.
- Note
Claude CodePasses
Claude Code reads its own extra fields, ignores unknown ones, and still loads a skill whose frontmatter is broken, without its fields.
- Note
The first sentence of the description is 355 characters. Agents shorten long descriptions, so lead with the main job. D8
Fix: Start with one short sentence that names the job.
- Note
Reference files over 100 lines with no table of contents at the top: references/baseline-diff.md (111 lines), references/cutover-day.md (197 lines), references/reading-the-report.md (111 lines) and references/thirty-day-watch.md (125 lines). B5
Fix: Add a short list of the sections at the top of each.
- Note
Claude apps & API uploadPasses
Uploading to claude.ai or the Claude API, or packaging with Anthropic's script, accepts only the six spec fields and stops on anything else.
- Note
The description is 586 characters. The claude.ai Help Center says 200 at most, though Anthropic's API docs and validator allow 1,024. D4
Fix: If the claude.ai upload refuses it, trim the description to 200 characters.
- Note
Reference files over 100 lines with no table of contents at the top: references/baseline-diff.md (111 lines), references/cutover-day.md (197 lines), references/reading-the-report.md (111 lines) and references/thirty-day-watch.md (125 lines). B5
Fix: Add a short list of the sections at the top of each.
- Note
OpenAI (Codex & API)Passes
Codex finds SKILL.md by its exact name and needs a description; OpenAI's Skills API checks the frontmatter against the spec and caps uploads.
- Note
The first sentence of the description is 355 characters. Agents shorten long descriptions, so lead with the main job. D8
Fix: Start with one short sentence that names the job.
- Note
- VS Code & CopilotPasses
SKILL.md
Files
10 files
More from ethanplusai/astro-conversion-kit
Other Security skills
Same category, most repo stars first.