One search for your own team's files and the public ecosystem. See how real projects write their agent instructions, and bring the good ideas home.
PostHogSkillPostHog/posthog/.agents/skills/implementing-warehouse-sources/SKILL.md
Implement and extend PostHog Data warehouse import sources. Use when adding a new source under products/warehouse_sources/backend/temporal/data_imports/sources, adding datasets/endpoints to an existing source, or adding incremental sync, resumable imports, webhook ingestion, pagination, credentials validation, and source tests.
PostHogSkillPostHog/posthog/.agents/skills/improving-drf-endpoints/SKILL.md
Use when editing, reviewing, or auditing DRF viewsets and serializers in PostHog. Triggers on files in posthog/api/, products/*/backend/api/, products/*/backend/presentation/, or any file importing rest_framework. Covers field typing, schema annotations, enum collision fixes, and OpenAPI spec quality — everything that flows downstream into generated TypeScript types and MCP tools.
PostHogSkillPostHog/posthog/.agents/skills/managing-dashboards/SKILL.md
Guides PostHog engineers through dashboard platform and scene changes. Use when changing Dashboard, DashboardTile, dashboardLogic, dashboard layouts, dashboard sharing or embeds, public dashboards, templates, filters, variables, refresh behavior, tile loading, dashboard lists, or dashboard permissions. Covers normal, shared, embedded, export, product-embedded, and template surfaces; RBAC; cache and query behavior; responsive layouts; and large or small dashboards. Use manage-dashboard-widgets instead for a widget_type or WidgetCard change.
PostHogSkillPostHog/posthog/.agents/skills/optimizing-clickhouse-and-hogql-queries/SKILL.md
Workflow for optimizing ClickHouse and HogQL queries. Use when a HogQL query, query runner, insight, or report is too slow; when a hand-written ClickHouse query (via `sync_execute` or in a migration) is too slow; when ClickHouse times out or hits memory limits; when investigating a slow `system.query_log` row; or when reviewing a proposed HogQL printer change for performance. Covers extracting the ClickHouse SQL, common smells (`FROM ... FINAL`, `JSONExtract` over properties, missing skip indexes, self-joins, CTE blow-up), measuring against a real cluster, and applying the fix at the right layer (printer, query runner, or migration). Does NOT cover Postgres / Django ORM / app-database queries; for those use `profiling-slow-api-endpoints`.
PostHogSkillPostHog/posthog/.agents/skills/run-posthog/SKILL.md
Start, inspect, and drive the PostHog dev stack. Use for /run and /verify on this repo — when asked to launch PostHog, check whether the stack is healthy, inspect a running process, or verify a UI change against the live app.
PostHogSkillPostHog/posthog/.agents/skills/security-audit/SKILL.md
Focused security audit of code, calibrated to surface real exploitable bugs and suppress theoretical findings. Use when the user asks to "audit", "security-audit", "find vulnerabilities", "check for IDOR/SSRF/XSS/injection", or wants a security review of a file, directory, branch diff, or PR. Covers access control, injection, auth/secrets, sensitive data, business logic, web boundary, and AI agent/LLM trifecta risks. Produces calibrated findings with data flow, exploit request, fix, and confidence — no theoretical or defense-in-depth nits.
PostHogSkillPostHog/posthog/.agents/skills/setup-web-tests/SKILL.md
Set up Python test environment in Claude Code for web where flox is unavailable. Use when you need to run backend tests and `uv sync` fails due to Python version mismatch.
PostHogSkillPostHog/posthog/.agents/skills/stacking-prs/SKILL.md
Create and manage GitHub native Stacked PRs in this repo with the `gh stack` CLI. Use when asked to stack PRs, split a large change into a stack, add a layer to a stack, restack or rebase a stack, adopt existing branches or PRs into a stack, check out someone else's stack, or land a stack. Covers creating and submitting stacks (draft-first), cascade rebases with `gh stack sync`, and landing one through the Trunk merge queue via `/merging-prs` — whole-stack via `/trunk merge` on the top layer, or bottom-first — never `gh stack merge`.
PostHogSkillPostHog/posthog/.agents/skills/writing-kea-logics/SKILL.md
Guide for writing or reviewing PostHog kea logic files (`*Logic.ts` / `*Logic.tsx`). Use when creating a new logic, adding actions/reducers/selectors/listeners/loaders/forms/router bindings, choosing between reducer vs selector vs cache, deciding between listeners and `kea-subscriptions`, wiring React with `useValues`/`useActions`/`BindLogic`, or onboarding to kea conventions. Read keajs.org for upstream API; this skill captures PostHog-specific conventions and idioms.
PostHogSkillPostHog/posthog/.agents/skills/writing-tests/SKILL.md
Gates whether a new test should exist and forces it to be efficient, protecting CI from low-value test bloat. Use before any change to what a pytest, Jest, or Playwright test asserts or sets up, down to one fixture or one assertion added to an existing block. Front-loads the value bar (every test must catch a realistic regression no existing test already catches; extend the nearest existing test before writing a new standalone one; test behavior through the public interface, not implementation details; collapse near-duplicates into parameterized cases) and the efficiency bar (deterministic, isolated, fast; pick the cheapest test level; Django TestCase over TransactionTestCase; no sleeps, no real network; no time bombs from absolute dates left to age against the real clock; no database a test never uses). Includes a "don't write it" decision tree. For fixing an existing flaky test use `/fixing-flaky-tests`; after this gate says a Playwright test is warranted, use `/playwright-test` for mechanics.
mindsdbCLAUDE.mdmindsdb/mindshub/CLAUDE.md
Minds Platform ## Submodules This repo has 4 submodules: | Path | Repo | Tracking | |---|---|---| | `frontend` | `mindsdb/cowork` | tag-pinned | | `backend/core_api` | `mindsdb/cowork-server` | tag-pinned | | `backend/core_agent` | `mindsdb/anton` | tag-pinned | | `backend/data-vault` | `mindsdb/data-vault` | `main` branch | ### Clone (fresh) ```bash
GitHubSkillgithub/awesome-copilot/skills/acreadiness-generate-instructions/SKILL.md
Generate tailored AI agent instruction files via AgentRC instructions command. Produces .github/copilot-instructions.md (default, recommended for Copilot in VS Code) plus optional per-area .instructions.md files with applyTo globs for monorepos. Use after running /acreadiness-assess to close gaps in the AI Tooling pillar.
GitHubSkillgithub/awesome-copilot/skills/acreadiness-policy/SKILL.md
Help the user pick, write, or apply an AgentRC policy. Policies customise readiness scoring by disabling irrelevant checks, overriding impact/level, setting pass-rate thresholds, or chaining org baselines with team overrides. Use when the user asks about strict mode, AI-only scoring, custom weights, CI gating, or wants org-wide standardisation.
GitHubSkillgithub/awesome-copilot/skills/anti-ui-slop/SKILL.md
Stop coding agents from shipping generic UI. Use UIZZE''s 800,000+ real web and iOS screens to build product-specific interfaces, define a design contract, cover required states, and run a hard finish gate. Use when designing, implementing, redesigning, critiquing, or pre-ship reviewing a web or iOS interface in Codex, Claude Code, Cursor, Copilot, or another coding agent. Trigger with "anti-ui-slop", "stop UI slop", "ground this UI in real screens", or "run the UI finish gate".
GitHubSkillgithub/awesome-copilot/skills/aspire/SKILL.md
Aspire skill covering the Aspire CLI, AppHost orchestration, service discovery, integrations, MCP server, VS Code extension, Dev Containers, GitHub Codespaces, templates, dashboard, and deployment. Use when the user asks to create, run, debug, configure, deploy, or troubleshoot an Aspire distributed application.
GitHubSkillgithub/awesome-copilot/skills/azure-static-web-apps/SKILL.md
Helps create, configure, and deploy Azure Static Web Apps using the SWA CLI. Use when deploying static sites to Azure, setting up SWA local development, configuring staticwebapp.config.json, adding Azure Functions APIs to SWA, or setting up GitHub Actions CI/CD for Static Web Apps.
GitHubSkillgithub/awesome-copilot/skills/breakdown-feature-implementation/SKILL.md
Prompt for creating detailed feature implementation plans, following Epoch monorepo structure.
GitHubSkillgithub/awesome-copilot/skills/breakdown-plan/SKILL.md
Issue Planning and Automation prompt that generates comprehensive project plans with Epic > Feature > Story/Enabler > Test hierarchy, dependencies, priorities, and automated tracking.
GitHubSkillgithub/awesome-copilot/skills/breakdown-test/SKILL.md
Test Planning and Quality Assurance prompt that generates comprehensive test strategies, task breakdowns, and quality validation plans for GitHub projects.
GitHubSkillgithub/awesome-copilot/skills/cloud-design-patterns/SKILL.md
Cloud design patterns for distributed systems architecture covering 42 industry-standard patterns across reliability, performance, messaging, security, and deployment categories. Use when designing, reviewing, or implementing distributed system architectures.
Plain text files in a repository that tell a coding agent how the project works: commands to run, conventions to follow and things to avoid. CLAUDE.md, AGENTS.md, cursor rules and skills are the common kinds.
CLAUDE.md is read by Claude Code. AGENTS.md is an open format that Codex, Cursor and other agents read. Many projects keep one and point the other at it.
A folder with a SKILL.md that describes one capability, such as filling PDFs or reviewing code. The agent loads it only when the task calls for it.
Your agents already can, over MCP, limited to the files you're allowed to read. Searching them from this page is coming.
