Development
Programming, frameworks, implementation, frontend, backend, and app development
Browse development skills
Showing 3,913–3,936 of 69,496 skills
Carries the rules that decide where a new file goes, when a folder splits, and when a file moves from its one consumer to shared code, so a plan places each new path by role and feature with a one-clause reason rather than beside its nearest neighbor. Use when a plan names a file or folder that does not exist yet, when `plan-feature` reaches its placement step, or when asked "where should this file go", "this folder is flat", "restructure this folder", or "should this be its own folder". Do N...
Chains implement → verify → review → ship after a feature plan is approved. Reads the plan the caller names, the plan a named task points at, or the plan for the current branch when none is named, runs the full pipeline in one session, and stops on any failure or non-minor review finding. Use when asked to "autoship", "ship this feature end to end", or "run the chain". Do NOT auto-trigger. Requires an approved plan file.
The landing page and this repository's own rendered images. Use for `web/`, `assets/`, the Astro build, `web/src/content/copy.ts`, or a capture this repository commits.
Learning workspace implementation, the committed fixture, and the teach standards. Use for `src/teach/`, `examples/teach/`, `standards/teach.md`, `standards/glossary.md`, or any `canon teach` verb.
Reviews a shipped-corpus edit for a reference that resolves only in this checkout and reads as portable, the one form the reference gate cannot classify by pattern. Use before shipping a change under claude/, docs/, governance/, scripts/, snippets/, standards/, or tooling/, routed here by `598-authoring-layout.md`. Do NOT use for a pull request number, a commit sha, a resolvable `docs/<name>.md` path, a phase label, or a numbered rule path, which `canon gate run`'s shipped-references stage al...
GitHub label taxonomy for kookr-ai/kookr. Use when creating issues, PRs, or triaging work to apply correct labels.
Design, simplify, and improve autonomous workflows, supervisors, scheduled jobs, and recovery loops across projects. Use when automation needs repeated human intervention, reports activity without results, or tries a new recovery approach. Record outcomes and refine this skill from evidence.
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.
Creates and launches PostHog surveys through MCP, including NPS/CSAT popovers, hosted feedback forms, and headless surveys. Guides survey type selection, audience targeting, draft review, and launch readiness. Use when asked to create a survey or form, or before calling survey-create. For investigating an existing survey's delivery or responses, use debugging-surveys instead.
Watches AEO citation-check results in system.aeo_citation_checks and files an inbox report when a domain's citation rate on an answer engine drops or spikes versus its baseline, or when the citation runner itself is failing.
Guides consumers of @posthog/quill-charts through chart selection, data, themes, sizing, and composition. Use when adding or changing a chart built with the package, including its axes, tooltips, legend, overlays, or interactions. Links to package examples and API docs. Does not cover product integration or library internals.
Set up the local dev environment, seed data, and API keys to test the staff-only managed migrations MCP tools (managed-migrations-support-list, managed-migrations-support-get) end to end. Use when testing batch import support tooling, debugging MCP tool responses or discovery (tools not appearing), or verifying the support API before deploying. Covers the discovery gate: hidden scope, is_staff, user:read, and why wildcard keys and OAuth never work.
Connect a real Slack workspace to local PostHog Conversations (the SupportHog Slack app) so Slack messages become support tickets and replies post back. Use when the user wants to test the conversations Slack integration locally, hits "Support Slack OAuth client ID is not configured", gets a white screen or "Network error" on the OAuth callback, or asks how to set SUPPORT_SLACK_APP_CLIENT_ID / a tunnel for supporthog Slack events. Covers the Slack app + scopes, the SUPPORT_SLACK_* dynamic set...
Use before adding or changing Python code that calls a third-party HTTP API from PostHog (a vendor REST call, a vendor SDK client, a scraping or enrichment service), and before adding or changing a domain under posthog/egress/: its budget, priority lanes, identity, metrics, or rate-limit headers. Routes the call to an existing egress domain, a new gated domain, a record-only domain, or no domain at all, names the reference domain to copy, and lists the tests that catch a missing priority rese...
Run a CodeRabbit review over the branch from the terminal, with the `coderabbit` CLI, and record the pass in the PR description. Use before `gh pr create`, and whenever a review of a branch is asked for: a local review, a self-review, a CodeRabbit review, or a pre-PR review. Run it once per branch. Checks the sign-in state before the review and asks the person whether to sign in or skip, because a signed-out review opens a browser tab on its own. When the CLI is unavailable, the PR opens with...
Runs read-only production database analysis through PostHog's internal Metabase instances. Use for ClickHouse query logs, slow query cost, Postgres query plans, index selection, or tenant-size analysis. Covers US and EU database discovery, SSO login through `hogli`, safe query rules, and query patterns for both engines.
Profiles slow PostHog API endpoints when the main cost is in Postgres or Python. Use when a screen, picker, or list is slow; a Django endpoint has high tail latency; a query plan changes with tenant size; or a proposed database fix needs production evidence. Covers APM traces, safe production EXPLAIN, representative measurements, implementation choices, tests, rollout, and post-deploy verification. For ClickHouse or HogQL latency, use `optimizing-clickhouse-and-hogql-queries` instead.
File layout for the conversations product. Use when adding, moving, renaming, or reviewing files under products/conversations/ — especially frontend components, scenes, helpers, and tests. Conversations React components live in their own folder under products/conversations/frontend/components/, never as loose files in components/ or at the frontend root. Expand this skill as more conversations layout rules land.
Run an improve-my-MCP campaign: an autoresearch-style loop that measures the MCP agent experience with the eval harness, picks the highest-impact tool problem from production data, makes one bounded fix, and keeps it only if before/after scores improve. Use when asked to "improve my MCP", run an MCP improvement campaign, fix tool discoverability or descriptions based on evidence, or prepare an eval-backed PR for a tool change. Every shipped change must carry eval evidence; guardrails below ar...
Decide whether a rule belongs in an AGENTS.md / CLAUDE.md file, and write it so it holds. Use before adding, editing, or removing any instruction in a root or nested AGENTS.md, when a convention keeps getting broken and someone proposes documenting it, when reviewing a diff that touches one, or when a file has grown and needs a trim. Carries the enforcement-tag convention (`[lint: <id>]` / `[review]`), the six configuration smells to check against, and the size budget. Trigger terms: AGENTS.m...
Guides PostHog engineers through subscription product changes. Use when changing subscription resource types, destinations, schedules, delivery workflows, retry or automatic disable behavior, permissions, limits, AI summaries, AI prompt reports, delivery history, subscription APIs, MCP tools, or subscription management UI. Not for configuring an existing subscription through MCP.
Configures and manages Depot CI, a drop-in replacement for GitHub Actions that runs workflows entirely within Depot. Use when migrating GitHub Actions workflows to Depot CI, running `depot ci migrate`, managing Depot CI secrets and variables, running workflows with `depot ci run`, debugging Depot CI runs with `depot ci run list`, `depot ci status`, `depot ci logs`, `depot ci diagnose`, or `depot ci ssh`, inspecting test results with `depot tests` or run artifacts with `depot ci artifacts`, ch...
Debug the signals pipeline locally end-to-end. Covers emitting test signals from fixtures, monitoring Temporal workflows via the REST API, reading sandbox agent logs from object storage, inspecting Docker sandbox containers, and diagnosing common failures (stale ClickHouse embeddings, agentsh network denials, inactivity timeouts). Use when a signal isn't reaching the inbox, a signal-report-summary workflow fails, or a sandbox task run times out.
Debug, support, and build PostHog MCP Analytics — product analytics for MCP servers (the `@posthog/mcp` and `posthog.mcp` SDKs plus the mcp_analytics product). Use when MCP analytics data looks wrong or missing ("events aren't showing", "intent clusters are empty", "sessions are missing", "per-tool numbers look wrong"), when writing queries over `$mcp_*` events by hand, or when doing feature work on the SDKs, the dashboard and its query runners, the self-instrumented MCP server, the `wizard m...