Facebook Skills

hermes/.claude/skills/add-ir-instruction

When adding a new IR instruction, you must touch a specific set of files. This skill describes each file, the pattern to follow, and important conventions.

pyrefly/tensor-shapes/skills/add-shape-types-to-torch-model

Port a PyTorch model to use pyrefly's tensor shape type system (Tensor[B, C, H, W], Dim[T]). Use this skill whenever the user wants to add shape annotations to…

pyrefly/.agents/skills/add-torch-shapes-example

Use when adding a new PyTorch model to Pyrefly's shape-tracking example corpus under tensor-shapes/pyrefly-torch-stubs/examples — i.e. importing a model as a…

agentic-tools/plugins/devtools/skills/api-health

Monitor API health for a Meta app — check rate limits, call volume, and API deprecations. Use to diagnose throttling, plan capacity, or prepare for API version…

agentic-tools/plugins/devtools/skills/api-integration

Guide a developer through setting up a Meta API integration from scratch — discovers the right APIs, fetches setup guides, authentication requirements,…

agentic-tools/plugins/devtools/skills/app-health-check

Run a comprehensive health check on a Meta app — audits settings, security, compliance, app review status, rate limits, and API deprecations in one pass. Use…

agentic-tools/plugins/devtools/skills/app-review-prep

Prepare a Meta app for App Review — checks current status, outstanding requirements, granted privileges, and submission history. Use before submitting an app…

hermes/.claude/skills/binary-size-analysis

Analyze per-commit binary size changes of the hermesvm shared library across a git commit range. Produces a markdown report with per-commit sizes and summary tables of significant increases and decreases.

buck2/.claude/skills/buck2-rule-basics

Guide users through writing their first Buck2 rule to learn fundamental concepts including rules, actions, targets, configurations, analysis, and select(). Use…

meta-wearables-dat-android/plugins/mwdat-android/skills/camera-streaming

Session and Stream capability setup, video frames, photo capture, resolution and frame rate configuration

meta-wearables-dat-ios/plugins/mwdat-ios/skills/camera-streaming

Stream, video frames, photo capture, resolution/frame rate configuration

immersive-web-sdk/.claude/skills/click-target

Find and click a target object in XR. Use when testing UI interactions, clicking buttons, or verifying interactable elements work correctly.

agentic-tools/plugins/devtools/skills/compliance-check

Check compliance status for a Meta app — surfaces open required actions, active violations, and recommendations with remediation guidance. Use to audit…

meta-wearables-dat-android/plugins/mwdat-android/skills/dat-conventions

Kotlin patterns, DatResult, session and capability conventions for DAT SDK Android development

meta-wearables-dat-ios/plugins/mwdat-ios/skills/dat-conventions

Swift patterns, async/await, naming conventions, key types for DAT SDK iOS development

agentic-tools/plugins/devtools/skills/debug-webhooks

Troubleshoot webhook issues for a Meta app — inspect active subscriptions, identify misconfiguration, and send test payloads to verify delivery. Use when…

meta-wearables-dat-android/plugins/mwdat-android/skills/debugging

Common issues, Developer Mode, version compatibility, and session and stream diagnosis

meta-wearables-dat-ios/plugins/mwdat-ios/skills/debugging

Common issues, Developer Mode, version compatibility, state machine diagnosis

meta-wearables-dat-android/plugins/mwdat-android/skills/display-access

Display capability setup, display-capable device selection, UI DSL, icons, buttons, images, and video playback

meta-wearables-dat-ios/plugins/mwdat-ios/skills/display-access

Display capability setup, display-capable device selection, UI DSL, icons, buttons, images, and video playback

react/.claude/skills/extract-errors

Extract and manage error codes for React applications. Automatically extracts error messages from React source code and assigns unique error codes to new messages Detects "unknown error code" warnings and flags messages that need code assignment Validates that error codes remain synchronized with the current codebase through a simple yarn command

react/.claude/skills/feature-flags

Manage React feature flags across channels, gate tests conditionally, and debug flag-specific test failures. Four flag files control defaults and channel-specific overrides (canary, www, React Native, test renderer) with __VARIANT__ flags simulating gatekeepers tested in both states Use @gate flagName pragma to skip tests entirely when a flag is unavailable, or inline gate() to branch assertions when behavior differs Adding a new flag requires entries in the main file plus all fork files;...

react/.claude/skills/fix

Automated code formatting and linting to resolve style issues before CI checks. Runs Prettier for code formatting and linc for lint validation in sequence Identifies remaining manual fixes needed after automated corrections Prevents CI failures by catching formatting and lint errors before commit

react/.claude/skills/flags

Inspect and compare feature flag states across React release channels. View all flags across channels (www, www-modern, canary, next, experimental, rn variants) or compare specific channels with --diff Output formats include default table view, CSV export, and cleanup status grouping Flag states indicated by symbols: enabled (✅), disabled (❌), variant testing (🧪), profiling-only (📊) Common pitfall: __VARIANT__ flags are tested in both states on www; use --diff to spot meaningful...

react/.claude/skills/flow

Static type checking for React code across DOM and native platforms. Four renderer options cover standard DOM, browser-specific code, React Native, and Fabric environments Run yarn flow with optional renderer argument; use yarn flow-ci for comprehensive but slower checks Reports type errors with file locations to help identify and fix issues quickly Watch for common pitfalls: missing renderer specification, unexamined $FlowFixMe suppressions, and incorrect type imports

hermes/.claude/skills/gc-safe-coding

For the full explanation and rationale, see doc/GCSafeCoding.md .

meta-wearables-dat-android/plugins/mwdat-android/skills/getting-started

SDK setup, Gradle integration, AndroidManifest configuration, and first connection to Meta glasses

meta-wearables-dat-ios/plugins/mwdat-ios/skills/getting-started

SDK setup, Swift Package Manager integration, Info.plist configuration, and first connection to Meta glasses

immersive-web-sdk/.claude/skills/iwsdk-planner

IWSDK project planning and best practices guide. Use when planning new IWSDK features, designing systems/components, reviewing IWSDK code architecture, or when…

immersive-web-sdk/.claude/skills/iwsdk-ui-panel

Develop and iterate on IWSDK UI panels efficiently. Use when working on PanelUI components, debugging UI layout, or improving UI design in IWSDK applications.