Official agent skill

Building Loops

by PostHog in PostHog/posthog

Build a Loop for PostHog Desktop: a workflow that creates an AI task each time its trigger fires, optionally followed by a Slack or email notification with the task's result.

OfficialCustom licenceAuto-check passedProductivity & Automation

Install Building Loops

skills CLI
$ npx skills add PostHog/posthog --skill building-loops -a claude-code

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

GitHub CLI
$ gh skill install PostHog/posthog building-loops --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/PostHog/posthog.git skills-src && mkdir -p .claude/skills && cp -r skills-src/products/tasks/skills/building-loops .claude/skills/building-loops && 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
building-loops
GitHub stars
40k
Token cost
~3.6k tokens
SKILL.md length
1,412 words
Files
1
Skills in repo
252
Repo updated
First seen
Licence
Custom licence

At a glance

Build a Loop for PostHog Desktop: a workflow that creates an AI task each time its trigger fires, optionally followed by a Slack or email notification with the task's result.

  • Works in 3 steps: Run with no current_action_id and… → Expect nextActionId = create_task. Run… → Expect the mocked task call and…
  • Optionally followed by a Slack
  • SKILL.md covers The graph, The task step, Trigger config and Schedule row, plus 4 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Building Loops is an agent skill from PostHog/posthog, published by the product's own GitHub organization. Build a Loop for PostHog Desktop: a workflow that creates an AI task each time its trigger fires, optionally followed by a Slack or email notification with the task's result. Use when asked to create, set up, or change a loop, a recurring agent, a scheduled task, or an automation that runs an AI task when a GitHub, Slack, or PostHog event happens. Covers the exact graph, trigger configs, schedule presets, the notify step, structured output, and the test-run steps.

Its SKILL.md is about 3.6k 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 Productivity & Automation, covering Structured output and tool calling and Scheduled and recurring tasks. It works with PostHog, Slack and GitHub. The repository describes itself as: :hedgehog: PostHog is the leading platform for building self-driving products. Our developer tools – AI observability, analytics, session replay, flags, experiments, error…

When your agent uses it

  • Optionally followed by a Slack
  • Email notification with the tasks result
  • Asked to create
  • A recurring agent

Example prompts

  • “/building-loops”

Workflow steps

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

  1. Run with no current_action_id and globals { "event": { "event": "$scheduled", "properties": {} } } for a schedule loop. For a GitHub or…
  2. Expect nextActionId = create_task. Run again with current_action_id: "create_task".
  3. Expect the mocked task call and nextActionId = notify (or exit). Continue until the exit step.

What it can do on your machine

Read from SKILL.md and the folder at commit 10f9ad7. 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 (its code samples are json).

    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

Building Loops loads about 3.6k tokens when it runs. Until then it costs about 121 tokens; SKILL.md has 1,412 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~121
When it runs · the whole SKILL.md, loaded when a task matches
~3.6k

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

Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 1,412 words (~3,583 tokens).

“A Loop is a workflow tagged origin_product: "loops" with one shape: a trigger, one "Create AI task" step, an optional notify step, and an exit. Desktop's Loops screens read this shape back. A workflow with anything else still runs, but…”

— opening of SKILL.md by PostHog, Custom licence
name
building-loops

Read the full SKILL.md on GitHub

Files

Just SKILL.md in products/tasks/skills/building-loops of PostHog/posthog.

Open the folder on GitHubat commit 10f9ad7

Used in 1 other repository

We found 1 copy of this SKILL.md (exact, near-identical or edited) in other folders. This page covers the copy in PostHog/posthog, which our catalogue first saw on October 7, 2026.

Compare with similar skills

Building Loops 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.

Building Loops compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Building Loops this skillPostHog/posthog40k—~3.6kAutomated safety check: PassCustom licence
Superset Automatesuperset-sh/superset15k—~1.4kAutomated safety check: PassCustom licence
Meeting Briefgooseworks-ai/goose-skills1.2k1 repos~2.3kAutomated safety check: PassMIT
Connect Apps with ComposioComposioHQ/awesome-claude-skills77k3 repos~557Automated safety check: PassNone
Composio Cloud Toolsquarqlabs/argus277—~543Automated safety check: PassApache-2.0
GitHub Repo MonitorOpenHands/extensions158—~3.1kAutomated safety check: PassMIT

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Questions about Building Loops

What does Building Loops do?

Build a Loop for PostHog Desktop: a workflow that creates an AI task each time its trigger fires, optionally followed by a Slack or email notification with the task's result. Building Loops is an agent skill from PostHog/posthog, published by the product's own GitHub organization. Build a Loop for PostHog Desktop: a workflow that creates an AI task each time its trigger fires, optionally followed by a Slack or email notification with the task's result.

When should I use Building Loops?

Building Loops fits situations like: optionally followed by a Slack; email notification with the tasks result; asked to create; A recurring agent.

How do I install Building Loops in Claude Code?

Run `npx skills add PostHog/posthog --skill building-loops -a claude-code`. Or copy the skill folder (products/tasks/skills/building-loops in PostHog/posthog) into .claude/skills/building-loops in your project. Claude Code loads it when a task matches its description.

How do I install Building Loops in Codex?

Run `npx skills add PostHog/posthog --skill building-loops -a codex`. Or copy the skill folder (products/tasks/skills/building-loops in PostHog/posthog) into .agents/skills/building-loops in your project. Codex loads it when a task matches its description.

Can I use Building Loops 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 PostHog/posthog --skill building-loops -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/building-loops, .gemini/skills/building-loops, .github/skills/building-loops and .opencode/skills/building-loops in your project.

What does Building Loops need to run?

SKILL.md names no scripts, command-line tools or credentials: Building Loops is instructions for the agent only.

Does Building Loops 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 Building Loops 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 Building Loops use?

Building Loops has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.

How many tokens does Building Loops use?

About 3.6k tokens (SKILL.md is roughly 14k 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 Building Loops?

Skills that share tags, products or a category with Building Loops: Superset Automate (superset-sh/superset, 15k stars), Meeting Brief (gooseworks-ai/goose-skills, 1.2k stars), Connect Apps with Composio (ComposioHQ/awesome-claude-skills, 77k stars) and Composio Cloud Tools (quarqlabs/argus, 277 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Building Loops?

PostHog (a GitHub organization, an official publisher) maintains it in PostHog/posthog, which has 40,182 GitHub stars. The repository holds 252 skills in this directory. The repository was last updated on October 8, 2026.

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