
Why did sign-ups drop?
Quest Find out why sign-ups fell last week using PostHog and a local data export
- Hero
- Claude Code
- Weapon
Claude Sonnet 5.5- Charge
PostHog
DuckDB / MotherDuck MCP
Anthropic Data
Official PostHog plugin: query insights, manage feature flags and experiments, read errors, plus 30+ skills.
Foe: Riddle Sphinx, a question your data hasn't answered yet.
Foes
Party · Context
The Riddle Sphinx blocks the way.
What really happensIt stands for a question your data hasn't answered yet.
Alchemist: Context 100/100.
The sphinx asks a riddle. A wrong guess costs dearly.
What really happensAn answer guessed from a hunch instead of a query sends the work the wrong way.
Alchemist takes 11. Alchemist: Context 89/100.
The watchtower signals PostHog and waits for a pass.
What really happensAfter install you run /mcp, choose plugin:posthog:posthog and log in to PostHog in the browser.
Riddle Sphinx takes 31.
Lookouts count sign-ups, pageviews and funnel drop-offs.
What really happensThe agent queries insights in plain words, such as sign-ups this week or the checkout funnel conversion rate.
Riddle Sphinx takes 14.
The Riddle Sphinx uses Riddle.
Alchemist takes 11. Alchemist: Context 78/100.
The tower reports which errors hit the most people.
What really happensError tracking tools list recent errors and rank them by affected users.
Riddle Sphinx takes 34.
A new flag goes up on the wall.
What really happensIt can create or update feature flags, experiments and dashboards. These change your PostHog project, so approve each one.
Riddle Sphinx takes 21. Riddle Sphinx falls.
The Riddle Sphinx falls.
Claude Code
claude plugin install posthogCodex
codex plugin marketplace add PostHog/ai-plugin
/pluginsConnects PostHog's MCP server; run /mcp, pick plugin:posthog:posthog and sign in. Codex: codex plugin marketplace add PostHog/ai-plugin, then install PostHog from /plugins. Can create and change flags, experiments, dashboards and surveys, so watch what you approve. Optional hook sends Claude Code sessions to PostHog LLM Analytics when POSTHOG_LLMA_CC_ENABLED and POSTHOG_API_KEY are set. Self-hosted: set POSTHOG_MCP_URL. License MIT per README and plugin.json.
This spell has no recorded sessions in the curator's logs. Tried it? Send a spell report.