Provides a comprehensive guide for writing production-ready Golang tests. Covers table-driven tests, test suites with testify, mocks, unit tests, integration tests, benchmarks, code coverage, parallel tests, fuzzing, fixtures, goroutine leak detection with goleak, snapshot testing, memory leaks, CI with GitHub Actions, and idiomatic naming conventions. Use this whenever writing tests, asking about testing patterns or setting up CI for Go projects. Essential for ANY test-related conversation in Go.

Automatically complete partial code snippets while satisfying semantic constraints including variable types, invariants, pre/post-conditions, interface contracts, and expected input/output behavior. Use when users provide incomplete code with specific requirements like "complete this function that takes a list and returns sorted unique elements" or "fill in this method body that must maintain the invariant that x stays positive" or "implement this interface method with these type constraints." Produces compilable, executable code with tests and a constraint satisfaction report.

Juicebox incident response. Trigger: "juicebox incident", "juicebox outage".

Debug and resolve common Gamma API errors. Use when encountering authentication failures, rate limits, generation errors, or unexpected API responses. Trigger with phrases like "gamma error", "gamma not working", "gamma API error", "gamma debug", "gamma troubleshoot".

Configure Fireflies.ai across dev, staging, and production with isolated API keys. Use when setting up multi-environment deployments, managing per-env secrets, or implementing environment-specific Fireflies configurations. Trigger with phrases like "fireflies environments", "fireflies staging", "fireflies dev prod", "fireflies environment setup", "fireflies config by env".

Implement security best practices for Documenso document signing integrations. Use when securing API keys, configuring webhooks securely, or implementing document security measures. Trigger with phrases like "documenso security", "secure documenso", "documenso API key security", "documenso webhook security".

**CRITICAL**: Use this skill for ALL CVE remediation workflows. DO NOT use individual skills piecemeal for end-to-end remediation. Use when users request: - CVE remediation playbooks or security patch deployment - Multi-step remediation (validation → context → playbook → execution) - Batch remediation across multiple systems or CVEs - End-to-end CVE management (analysis + remediation + verification) - Prioritizing and remediating CVEs (not just listing them) - Emergency security response with immediate remediation plans DO NOT use for simple queries: - "List critical CVEs" → Use `/cve-impact` skill - "What's the CVSS score for CVE-X?" → Use `/cve-impact` or `/cve-validation` - Standalone impact analysis without remediation → Use `/cve-impact` This skill orchestrates 6 specialized skills (cve-impact, cve-validation, system-context, playbook-generator, playbook-executor, remediation-verifier) for complete remediation workflows.

Cloudflare Workers performance optimization with CPU, memory, caching, bundle size. Use for slow workers, high latency, cold starts, or encountering CPU limits, memory issues, timeout errors.

Test web applications with screen readers including VoiceOver, NVDA, and JAWS. Use when validating screen reader compatibility, debugging accessibility issues, or ensuring assistive technology support.

End-to-end MegaETH development playbook (Feb 2026). Covers wallet operations, token swaps (Kyber Network), eth_sendRawTransactionSync (EIP-7966) for instant receipts, JSON-RPC batching, real-time mini-block subscriptions, storage-aware contract patterns (Solady RedBlackTreeLib), MegaEVM gas model, WebSocket keepalive, bridging from Ethereum, and debugging with mega-evme. Use when building on MegaETH, managing wallets, sending transactions, or deploying contracts.

End-to-end MegaETH development playbook (Feb 2026). Covers wallet operations, token swaps (Kyber Network), eth_sendRawTransactionSync (EIP-7966) for instant receipts, JSON-RPC batching, real-time mini-block subscriptions, storage-aware contract patterns (Solady RedBlackTreeLib), MegaEVM gas model, WebSocket keepalive, bridging from Ethereum, and debugging with mega-evme. Use when building on MegaETH, managing wallets, sending transactions, or deploying contracts.

Manage ThousandEyes synthetic monitoring with MCP tools. Use when a user wants to list, inspect, create, update, delete, or validate synthetic tests; deploy application templates; or choose the right ThousandEyes monitoring approach across Network and Application Synthetics and Browser Synthetics.

Manage ThousandEyes synthetic monitoring with MCP tools. Use when a user wants to list, inspect, create, update, delete, or validate synthetic tests; deploy application templates; or choose the right ThousandEyes monitoring approach across Network and Application Synthetics and Browser Synthetics.

Design JSON Schema collections and CRUD patterns for Falcon Foundry apps. TRIGGER when user asks to "create a collection", "define a JSON schema", "store data in Foundry", runs `foundry collections create`, or needs help with indexable fields, FQL queries, or collection access patterns. DO NOT TRIGGER for workflow YAML, function handlers, or UI components — use the appropriate sub-skill.

Build UI pages and extensions for Falcon Foundry apps using React or Vue with the Shoelace design system and Foundry-JS SDK. TRIGGER when user asks to "create a UI page", "build a UI extension", "add a Shoelace component", "call an API from the UI", runs `foundry ui pages create` or `foundry ui run`, or needs help with Vite config, FalconJS SDK, or Falcon console theming. DO NOT TRIGGER for backend functions, workflow YAML, or collection schemas.

Build serverless Go or Python functions for Falcon Foundry apps. TRIGGER when user asks to "create a function", "write a serverless function", "build backend logic", runs `foundry functions create`, or needs help with FDK handler patterns, function testing, or collection integration from functions. DO NOT TRIGGER for calling Falcon platform APIs from functions — use functions-falcon-api instead. DO NOT TRIGGER for workflow YAML or UI components.

Detects fail-open insecure defaults (hardcoded secrets, weak auth, permissive security) that allow apps to run insecurely in production. Use when auditing security, reviewing config management, or analyzing environment variable handling.

Scan project dependencies for known vulnerabilities (CVEs). Use when reviewing dependency files (package.json, requirements.txt, go.mod, pom.xml, Gemfile, Cargo.toml, etc.), triaging Dependabot/Renovate alerts, or performing pre-deployment security checks.

Investigate production issues, query logs and metrics, and explore dashboards on the Mattermost Grafana instance at grafana.internal.mattermost.com.