Modeling Activation Metrics
PostHog/posthog
Build reusable activation models — an activation-rate metric and a per-user/per-account activated flag — on either PostHog data-warehouse views (HogQL) or an external dbt project.
Check the running app, CLI, or server against the active spec's done-when criteria and capture observable pass or fail evidence without editing source.
MITAuto-check passed
Install Check
$ npx skills add aiblueprinthq/ai-blueprint --skill check -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install aiblueprinthq/ai-blueprint check --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/aiblueprinthq/ai-blueprint.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/check .claude/skills/check && 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 "check" agent skill from https://github.com/aiblueprinthq/ai-blueprint/tree/main/.agents/skills/check into .claude/skills/check/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "check", 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/aiblueprinthq/ai-blueprint/tree/main/.agents/skills/checkType 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 aiblueprinthq/ai-blueprint --skill check -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install aiblueprinthq/ai-blueprint check --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/aiblueprinthq/ai-blueprint.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.agents/skills/check .agents/skills/check && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "check" agent skill from https://github.com/aiblueprinthq/ai-blueprint/tree/main/.agents/skills/check into .agents/skills/check/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "check", 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 aiblueprinthq/ai-blueprint --skill check -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install aiblueprinthq/ai-blueprint check --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/aiblueprinthq/ai-blueprint.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.agents/skills/check .cursor/skills/check && 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 "check" agent skill from https://github.com/aiblueprinthq/ai-blueprint/tree/main/.agents/skills/check into .cursor/skills/check/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "check", 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/aiblueprinthq/ai-blueprint.git --path .agents/skills/check--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 aiblueprinthq/ai-blueprint --skill check -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install aiblueprinthq/ai-blueprint check --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/aiblueprinthq/ai-blueprint.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.agents/skills/check .gemini/skills/check && 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 "check" agent skill from https://github.com/aiblueprinthq/ai-blueprint/tree/main/.agents/skills/check into .gemini/skills/check/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "check", 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 aiblueprinthq/ai-blueprint checkInstalls 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 aiblueprinthq/ai-blueprint --skill check -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/aiblueprinthq/ai-blueprint.git skills-src && mkdir -p .github/skills && cp -r skills-src/.agents/skills/check .github/skills/check && 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 "check" agent skill from https://github.com/aiblueprinthq/ai-blueprint/tree/main/.agents/skills/check into .github/skills/check/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "check", 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 aiblueprinthq/ai-blueprint --skill check -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install aiblueprinthq/ai-blueprint check --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/aiblueprinthq/ai-blueprint.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.agents/skills/check .opencode/skills/check && 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 "check" agent skill from https://github.com/aiblueprinthq/ai-blueprint/tree/main/.agents/skills/check into .opencode/skills/check/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "check", 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
check- GitHub stars
- 463
- Token cost
- ~546 tokens
- SKILL.md length
- 248 words
- Files
- 3
- Skills in repo
- 20
- Repo updated
- First seen
- Licence
- MIT
At a glance
Check the running app, CLI, or server against the active spec's done-when criteria and capture observable pass or fail evidence without editing source.
- SKILL.md covers Select the mode before any… and Verification startup…
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Check is an agent skill from aiblueprinthq/ai-blueprint. Check the running app, CLI, or server against the active spec's done-when criteria and capture observable pass or fail evidence without editing source. Use /check to verify real feature behavior, or /check guide [latest|scope] for a read-only manual walkthrough: how to test manually, where to click, expected and incorrect results, or a human review path.
Its SKILL.md is about 550 tokens, which your agent loads only when the skill is triggered. The skill folder holds 3 other files (for example `reference/guide.md` and `reference/verify.md`).
The repository describes itself as: A file-backed, spec-driven AI coding workflow framework for building real software while staying in control. The licence is MIT.
Example prompts
- “/check”
What it can do on your machine
Read from SKILL.md and the folder at commit 96222b7. 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
Check loads about 546 tokens when it runs. Until then it costs about 91 tokens; SKILL.md has 248 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
The full file from aiblueprinthq/ai-blueprint at commit 96222b7, republished under its MIT licence (© aiblueprinthq). 248 words, ~546 tokens.
Download SKILL.mdSave it as
.claude/skills/check/SKILL.md (or your agent's skills folder). This skill also uses 2 other files; get the full folder from GitHub.- name
- check
- description
- Check the running app, CLI, or server against the active spec's done-when criteria and capture observable pass or fail evidence without editing source. Use /check to verify real feature behavior, or /check guide [latest|scope] for a read-only manual walkthrough: how to test manually, where to click, expected and incorrect results, or a human review path.
check - verify behavior or explain how to try it
Context reuse: Reuse any required file already loaded in project instructions or the current session. Read it again only if absent, changed, or exact current bytes or line references are needed.
Select the mode before any tool call
/check guideor$check guide: generate a read-only manual walkthrough. Pass remaining arguments such aslatest, a step, a path, route, or command toreference/guide.md. Read and follow that reference only. Do not write activity state, run checks or the app, edit files, update spec status, or produce verification receipts.- A natural-language request for instructions on how the user can manually test or review a change also selects guide mode. If the request mixes a guide with agent verification, clarify which mode to run first before any activity.
/checkor$check, optionally with a verification scope: verify observed behavior against the spec. Follow verification startup below, then read and followreference/verify.mdonly.
Load only the selected reference. Do not read both references preemptively.
Guide generation never satisfies a verification gate. The existing
qualityGates.regular.tryGuide and qualityGates.continuous.tryGuide keys now
select /check guide; their policy values and automatic invocation rules are
unchanged. The separate check gates continue to select verification mode.
Verification startup (verification mode only)
First action: Before project inspection, preflight, or any other tool call,
publish running to blueprint/.state/run.json using the dashboard activity
contract in AGENTS.md, with command check. This precedes reading the
verification reference. Guide mode must skip this startup entirely.
© aiblueprinthq, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
SKILL.md and 2 other files in .agents/skills/check of aiblueprinthq/ai-blueprint.
- SKILL.md
- reference/guide.md
- reference/verify.md
Open the folder on GitHubat commit 96222b7
Compare with similar skills
Check 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 |
|---|---|---|---|---|---|---|
| Check this skillaiblueprinthq/ai-blueprint | 463 | — | ~546 | Automated safety check: Pass | MIT | |
| Modeling Activation MetricsPostHog/posthog | 40k | — | ~1.4k | Automated safety check: Pass | Custom licence | |
| Summarize Activityalpinejs/alpine | 32k | — | ~1.6k | Automated safety check: Notes | MIT | |
| Duplicate Id Activethedaviddias/Front-End-Checklist | 74k | — | ~440 | Automated safety check: Pass | MIT | |
| Puzzle Activity Plannersickn33/agentic-awesome-skills | 47k | 1 repos | ~790 | Automated safety check: Pass | MIT | |
| Adding Activity LoggingPostHog/posthog | 40k | — | ~1.5k | Automated safety check: Pass | Custom licence |
Similar skills
- Official
Summarize Activity
alpinejs/alpine
Summarize recent GitHub activity — discussions, PRs, issues, events, traffic — into an actionable report so you can stay on top of the project without reading everything.
Duplicate Id Active
thedaviddias/Front-End-Checklist
A skill your agent uses when reviewing rendered HTML, interactive components, or design-system patterns related to Use unique IDs for active elements.
Puzzle Activity Planner
sickn33/agentic-awesome-skills
Plan puzzle-based activities for classrooms, parties, and events with pre-configured generator links
- Official
Adding Activity Logging
PostHog/posthog
Adds or changes activity logging (the audit trail) for a Django model in PostHog.
Containing Active Breach
mukul975/Anthropic-Cybersecurity-Skills
Executes containment strategies to stop active adversary operations and prevent lateral movement during a confirmed security breach.
More from aiblueprinthq/ai-blueprint
All 20 skills in this repoAdopt
aiblueprinthq/ai-blueprint
Adopt Blueprint into an existing brownfield codebase by surveying shipped behavior and generating plans, standards, commands, adapter choices, and visibility setup.
CI
aiblueprinthq/ai-blueprint
Set up or normalize one project Verify command and matching GitHub Actions checks while preserving existing CI, with an optional local pre-push hook.
Doctor
aiblueprinthq/ai-blueprint
Run a Blueprint health and context check covering setup, adapters, commands, visibility, plans, overview freshness, configuration, dashboard state, and workflow drift.
Feature
aiblueprinthq/ai-blueprint
Turn the next, named, or numbered build-plan feature into a buildable current-feature.md spec with small steps and done-when criteria.
Onboard
aiblueprinthq/ai-blueprint
Onboard a fresh or early scaffold after Blueprint is overlaid by tuning commands, standards, adapters, visibility, and context loading.
Overview
aiblueprinthq/ai-blueprint
Validate and normalize project-plan.md and build-plan.md, then generate the durable project-overview.md used by agents.
Questions about Check
What does Check do?
Check the running app, CLI, or server against the active spec's done-when criteria and capture observable pass or fail evidence without editing source. Check is an agent skill from aiblueprinthq/ai-blueprint. Check the running app, CLI, or server against the active spec's done-when criteria and capture observable pass or fail evidence without editing source.
How do I install Check in Claude Code?
Run `npx skills add aiblueprinthq/ai-blueprint --skill check -a claude-code`. Or copy the skill folder (.agents/skills/check in aiblueprinthq/ai-blueprint) into .claude/skills/check in your project. Claude Code loads it when a task matches its description.
How do I install Check in Codex?
Run `npx skills add aiblueprinthq/ai-blueprint --skill check -a codex`. Or copy the skill folder (.agents/skills/check in aiblueprinthq/ai-blueprint) into .agents/skills/check in your project. Codex loads it when a task matches its description.
Can I use Check 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 aiblueprinthq/ai-blueprint --skill check -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/check, .gemini/skills/check, .github/skills/check and .opencode/skills/check in your project.
What does Check need to run?
SKILL.md names no scripts, command-line tools or credentials: Check is instructions for the agent only.
Does Check 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 Check 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 Check use?
Check is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Check use?
About 546 tokens (SKILL.md is roughly 2.2k 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 Check?
Skills that share tags, products or a category with Check: Modeling Activation Metrics (PostHog/posthog, 40k stars), Summarize Activity (alpinejs/alpine, 32k stars), Duplicate Id Active (thedaviddias/Front-End-Checklist, 74k stars) and Puzzle Activity Planner (sickn33/agentic-awesome-skills, 47k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Check?
aiblueprinthq (a GitHub organization) maintains it in aiblueprinthq/ai-blueprint, which has 463 GitHub stars. The repository holds 20 skills in this directory. The repository was last updated on October 8, 2026.
Source: aiblueprinthq/ai-blueprint on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.