Shipping and Launch Checklist
addyosmani/agent-skills
Prepares a production launch with a pre-launch checklist, monitoring, a staged rollout and a rollback plan so every release is reversible and observable.
Identify what could go wrong before launch by imagining failure and working backward.
No licenceAuto-check passed
Install Pre Mortem
$ npx skills add amplitude/builder-skills --skill pre-mortem -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install amplitude/builder-skills pre-mortem --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/amplitude/builder-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/product-skills/skills/pre-mortem .claude/skills/pre-mortem && rm -rf skills-srcUse ~/.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/
Install the "pre-mortem" agent skill from https://github.com/amplitude/builder-skills/tree/main/product-skills/skills/pre-mortem into .claude/skills/pre-mortem/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "pre-mortem", 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 install https://github.com/amplitude/builder-skills/tree/main/product-skills/skills/pre-mortemType 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.
$ npx skills add amplitude/builder-skills --skill pre-mortem -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install amplitude/builder-skills pre-mortem --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/amplitude/builder-skills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/product-skills/skills/pre-mortem .agents/skills/pre-mortem && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "pre-mortem" agent skill from https://github.com/amplitude/builder-skills/tree/main/product-skills/skills/pre-mortem into .agents/skills/pre-mortem/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "pre-mortem", 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.
$ npx skills add amplitude/builder-skills --skill pre-mortem -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install amplitude/builder-skills pre-mortem --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/amplitude/builder-skills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/product-skills/skills/pre-mortem .cursor/skills/pre-mortem && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "pre-mortem" agent skill from https://github.com/amplitude/builder-skills/tree/main/product-skills/skills/pre-mortem into .cursor/skills/pre-mortem/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "pre-mortem", 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 https://github.com/amplitude/builder-skills.git --path product-skills/skills/pre-mortem--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add amplitude/builder-skills --skill pre-mortem -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install amplitude/builder-skills pre-mortem --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/amplitude/builder-skills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/product-skills/skills/pre-mortem .gemini/skills/pre-mortem && rm -rf skills-srcUse ~/.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/
Install the "pre-mortem" agent skill from https://github.com/amplitude/builder-skills/tree/main/product-skills/skills/pre-mortem into .gemini/skills/pre-mortem/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "pre-mortem", 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.
$ gh skill install amplitude/builder-skills pre-mortemInstalls 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).
$ npx skills add amplitude/builder-skills --skill pre-mortem -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/amplitude/builder-skills.git skills-src && mkdir -p .github/skills && cp -r skills-src/product-skills/skills/pre-mortem .github/skills/pre-mortem && rm -rf skills-srcUse ~/.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/
Install the "pre-mortem" agent skill from https://github.com/amplitude/builder-skills/tree/main/product-skills/skills/pre-mortem into .github/skills/pre-mortem/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "pre-mortem", 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.
$ npx skills add amplitude/builder-skills --skill pre-mortem -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install amplitude/builder-skills pre-mortem --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/amplitude/builder-skills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/product-skills/skills/pre-mortem .opencode/skills/pre-mortem && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "pre-mortem" agent skill from https://github.com/amplitude/builder-skills/tree/main/product-skills/skills/pre-mortem into .opencode/skills/pre-mortem/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "pre-mortem", 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
pre-mortem- GitHub stars
- 159
- Token cost
- ~685 tokens
- SKILL.md length
- 138 words
- Files
- 1
- Skills in repo
- 62
- Repo updated
- First seen
- Licence
- None found
At a glance
Identify what could go wrong before launch by imagining failure and working backward.
- SKILL.md covers Prompt Template and Tips
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Pre Mortem is an agent skill from amplitude/builder-skills. Identify what could go wrong before launch by imagining failure and working backward. Use after a spec is approved but before you ship — surfaces risks the team isn't talking about.
Its SKILL.md is about 690 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
The repository describes itself as: Open-source AI skills for product managers — battle-tested by PMs at Amplitude.
Example prompts
- “/pre-mortem”
What it can do on your machine
Read from SKILL.md and the folder at commit 51838c2. 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
No scripts in the folder and no shell commands in SKILL.md.
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
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
Pre Mortem loads about 685 tokens when it runs. Until then it costs about 48 tokens; SKILL.md has 138 words of instructions outside code blocks.
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); files beside SKILL.md are not scanned.
SKILL.md
Without a licence we can't republish the file, so here is its outline and opening line. It has 138 words (~685 tokens).
“Imagine your launch failed. Now figure out why.”
- name
- pre-mortem
- suggest_when
- User is about to launch, says "what could go wrong", "risk assessment", "are we ready to ship", "pre-mortem", or has a completed spec that hasn't been…
Files
Just SKILL.md in product-skills/skills/pre-mortem of amplitude/builder-skills.
Open the folder on GitHubat commit 51838c2
Compare with similar skills
Pre Mortem 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.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Pre Mortem this skillamplitude/builder-skills | 159 | — | ~685 | Automated safety check: Pass | None | |
| Shipping and Launch Checklistaddyosmani/agent-skills | 102k | 1 repos | ~2.8k | Automated safety check: Pass | MIT | |
| Pre Mortemphuryn/pm-skills | 27k | — | ~1k | Automated safety check: Pass | MIT | |
| Launch Strategyalirezarezvani/claude-skills | 28k | — | ~1.4k | Automated safety check: Pass | MIT | |
| HTML Ppt Product Launchnexu-io/open-design | 100k | — | ~1.3k | Automated safety check: Pass | Apache-2.0 | |
| Product Launch Videoheygen-com/hyperframes | 58k | 3 repos | ~8.3k | Automated safety check: Notes | Apache-2.0 |
Similar skills
Pre Mortem
phuryn/pm-skills
Run a pre-mortem risk analysis on a PRD or launch plan. An agent skill from phuryn/pm-skills.
Launch Strategy
alirezarezvani/claude-skills
When the user wants to plan a product launch, feature announcement, or release strategy.
HTML Ppt Product Launch
nexu-io/open-design
OpenDesign Teams: a launch-and-adoption proposal for a mid-market design team weighing a switch from closed cloud tools.
Product Launch Video
heygen-com/hyperframes
Turns a product URL, script or brief into a launch or promo video built frame by frame in HyperFrames, from brand capture and story design to rendering.
Launch Registry
aaron-he-zhu/aaron-marketing-skills
A skill your agent uses when the user asks to "log this launch", query a launch date/embargo, record a stage transition, or update submissions/outcomes; curates launch facts through the append-only…
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Questions about Pre Mortem
What does Pre Mortem do?
Identify what could go wrong before launch by imagining failure and working backward. Pre Mortem is an agent skill from amplitude/builder-skills. Identify what could go wrong before launch by imagining failure and working backward.
How do I install Pre Mortem in Claude Code?
Run `npx skills add amplitude/builder-skills --skill pre-mortem -a claude-code`. Or copy the skill folder (product-skills/skills/pre-mortem in amplitude/builder-skills) into .claude/skills/pre-mortem in your project. Claude Code loads it when a task matches its description.
How do I install Pre Mortem in Codex?
Run `npx skills add amplitude/builder-skills --skill pre-mortem -a codex`. Or copy the skill folder (product-skills/skills/pre-mortem in amplitude/builder-skills) into .agents/skills/pre-mortem in your project. Codex loads it when a task matches its description.
Can I use Pre Mortem 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 amplitude/builder-skills --skill pre-mortem -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/pre-mortem, .gemini/skills/pre-mortem, .github/skills/pre-mortem and .opencode/skills/pre-mortem in your project.
What does Pre Mortem need to run?
SKILL.md names no scripts, command-line tools or credentials: Pre Mortem is instructions for the agent only.
Does Pre Mortem access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Pre Mortem 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. Review the folder before installing.
What licence does Pre Mortem use?
No licence was found for Pre Mortem or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.
How many tokens does Pre Mortem use?
About 685 tokens (SKILL.md is roughly 2.7k 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 Pre Mortem?
Skills that share tags, products or a category with Pre Mortem: Shipping and Launch Checklist (addyosmani/agent-skills, 102k stars), Pre Mortem (phuryn/pm-skills, 27k stars), Launch Strategy (alirezarezvani/claude-skills, 28k stars) and HTML Ppt Product Launch (nexu-io/open-design, 100k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Pre Mortem?
amplitude (a GitHub organization) maintains it in amplitude/builder-skills, which has 159 GitHub stars. The repository holds 62 skills in this directory. The repository was last updated on July 24, 2026.
Source: amplitude/builder-skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.