sim

Create or migrate a protected Sim resource operation in the shared Principal and application-use-case architecture across internal APIs, public or versioned APIs, Copilot, and other trusted tool adapters. Use when adding a protected endpoint, tool command, or CRUD method; removing route- or tool-local authorization and business logic; consolidating resource reads or writes behind semantic operation policies; or adding another surface to an existing application operation while preserving contracts, identity, errors, rate limits, audit, analytics, and compatibility behavior. Treat v1, uploads, streams, large bodies, bulk recursion, and polymorphic tools as explicitly scoped special cases.

Add or update a Sim dynamic selector using the shared manifest, server attachment, and selectors.execute path. Use for provider-backed, internal, or local option lists referenced by block, trigger, or connector selectorKey fields.

Add a new governed item to Sim's enterprise permission groups — a boolean restriction, an allowlist, or a denylist — wired end-to-end from the field registry through the capability rule to the server gate that actually refuses. Use when adding a key to `PERMISSION_GROUP_FIELDS` or a capability to `CAPABILITY_RULES`.

Add or upgrade a curated, immutable managed CLI for Sim Function sandboxes, including client-safe catalog metadata, a pinned server-only installation recipe, checksum and executable verification, provider compatibility, PATH propagation, content-addressed image identity, and tests. Use when adding a CLI to the Sandbox managed-CLI selector or changing an existing managed CLI version or recipe.

Add a new table column type to Sim — registry entry, icon, storage shape, coercion, and the behavioral hooks the grid and API read. Use when adding a value kind under `apps/sim/lib/table/column-types/`.

Install, upgrade, and operate the Sim Helm chart on Kubernetes. Covers install path selection (inline / existingSecret / External Secrets Operator), required secret generation, the values.yaml mental model (env vs envDefaults vs Secret), and common failure triage. Invoke when a user asks about deploying Sim to a cluster, authoring a Sim values.yaml, debugging a Sim pod that won't start, upgrading a Sim release, or wiring Sim into a secret manager.

Add a new Sim settings page, or audit existing settings pages for design-system compliance with the shared SettingsPanel layout. Use when creating a settings tab, or when asked to check/clean up settings pages so they match the design system (consistent title, header, search, spacing).

Analyze and fix URL/query-param state anti-patterns — manual useSearchParams reads, hand-built query mutations, view-state trapped in useState, and objects in the URL

Analyze and fix unnecessary useState, derived state, and server-state-in-local-state anti-patterns

Analyze and fix useEffect anti-patterns in your code

Analyze and fix useMemo/React.memo anti-patterns in your code

Analyze and fix redundant or self-explanatory inline comments — remove noise, promote genuine documentation to TSDoc

Analyze and fix useCallback anti-patterns in your code

Validate an existing Sim webhook trigger against provider API docs and repository conventions

Validate a model entry (or every model in a provider) in apps/sim/providers/models.ts against the provider's live API docs (no hallucination — reports what cannot be verified)

Validate an existing Sim integration (tools, block, registry, and resolved-secret/model-input boundaries) against the service's API docs and Sim execution conventions

Validate an existing knowledge base connector against its service's API docs

Commit, push, and open a PR to staging in one shot — runs the cleanup pass and, when migrations changed, the db-migrate safety review first

Audit React Query usage for best practices — key factories, staleTime, mutations, and server state ownership

Review PRs and diffs for unbounded memory loading, concurrency explosions, oversized payload materialization, and missing pagination or byte caps. Use when reviewing cleanup jobs, background jobs, data imports/exports, file parsing, API fan-out, workflow execution payloads, large arrays/files, or any change that reads many rows, files, responses, logs, or external API pages into process memory.

Design engineering principles for making interfaces feel polished. Use when building UI components, reviewing frontend code, implementing animations, hover states, shadows, borders, typography, micro-interactions, enter/exit animations, or any visual detail work. Triggers on UI polish, design details, "make it feel better", "feels off", stagger animations, border radius, optical alignment, font smoothing, tabular numbers, image outlines, box shadows.

This skill encodes Emil Kowalski's philosophy on UI polish, component design, animation decisions, and the invisible details that make software feel great.

Review UI code for alignment with the emcn design system — components, tokens, patterns, and conventions

Anti-slop frontend skill for landing pages, portfolios, and redesigns. The agent reads the brief, infers the right design direction, and ships interfaces that do not look templated. Real design systems when applicable, audit-first on redesigns, strict pre-flight check.

Author or review a Drizzle DB migration for zero-downtime safety — expand/contract phasing, backward-compatibility with the deployed app version, and writing the `-- migration-safe` acknowledgment the check:migrations lint requires. Use when adding/editing files under `packages/db/migrations/` or changing `packages/db/schema.ts`.