Software Development Skills

Create or update a Sim integration block with correct subBlocks, conditions, dependsOn, modes, canonicalParamId usage, outputs, and tool wiring. Use when working on apps/sim/blocks/blocks/{service}.ts or aligning a block with its tools.

Gate a block's visibility — ship an unreleased block as a preview (hidden until revealed via AppConfig/env), reveal it to admins/orgs, GA it, or kill-switch a shipped…

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/.

Add a code-defined table enrichment (registry entry) under apps/sim/enrichments/ backed by an ordered provider cascade, ensuring every provider tool it calls has hosted-key support. Use when adding a per-row table enrichment that fills cells via existing Sim tools.

Add a runtime gated feature flag (AppConfig-backed on prod, secret fallback off-prod), gated by org id, user id, or…

Add hosted API key support to a tool so Sim provides the key when users don't bring their own. Use when adding hosted keys, BYOK support, hideWhenHosted, or hosted key pricing to a tool or block.

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 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).

Create or update Sim tool configurations from service API docs, including typed params, request mapping, response transforms, outputs, and registry entries. Use when working in apps/sim/tools/{service}/ or fixing tool definitions for an integration.

Create or update Sim webhook triggers using the generic trigger builder, service-specific setup instructions, outputs, and registry wiring. Use when working in apps/sim/triggers/{service}/ or adding webhook support to an integration.

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

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.

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

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.

Keep the executable tool registry out of client-reachable module graphs — when to read @/tools/metadata instead of getTool, how to measure whether an import edge pulls the registry, and how to regenerate the metadata artifacts. Use when touching apps/sim/tools/registry.ts, tools/utils.ts, tools/params.ts, or anything that calls getTool.

Audit an existing Sim knowledge base connector against the service API docs and repository conventions, then report and fix issues in auth, config fields, pagination, document mapping, tags, and registry entries. Use when validating or repairing code in apps/sim/connectors/{service}/.

Audit an existing Sim integration against the service API docs and repository conventions, then report and fix issues across tools, blocks, outputs, OAuth scopes, triggers, and registry entries. Use when validating or repairing a service integration under apps/sim/tools, apps/sim/blocks, or apps/sim/triggers.

Validate a model entry (or every model in a provider) in apps/sim/providers/models.ts against the provider's live API docs, reporting pricing and capability drift, dead capability flags, hosting/billing intent, and any field that cannot be verified. Use when auditing or repairing model entries under apps/sim/providers/models.ts.

Audit an existing Sim webhook trigger against the service's webhook API docs and repository conventions, then report and fix issues across trigger definitions, provider handler, output alignment, registration, and security. Use when validating or repairing a trigger under apps/sim/triggers/{service}/ or apps/sim/lib/webhooks/providers/{service}.ts.

Analyze and fix useCallback anti-patterns in your…

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

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

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

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…