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Convex HTTP Actions
Development
External API integration and webhook handling including HTTP endpoint routing, request/response handling, authentication, CORS configuration, and webhook signature validation.
Vexor: Semantic Search CLI
Development
Vector-powered CLI for semantic file search, integrated with Claude/Codex.
Diagnosing Bugs
Development
Structured diagnosis loop for hard bugs and performance regressions. Builds a tight feedback loop, redacts secrets, and systematically bisects to find root causes.
Explain Data Flows and Code Paths
Documentation
This skill traces data flows, features, and code paths in the varun.surf application. It provides step-by-step breakdowns with ASCII diagrams and file:line references, helping developers understand how data moves through the system. Use it when you need to grasp the end-to-end behavior of a feature or integration.
Code Quality Checker
Development
Runs ruff for linting and mypy for type checking on the codebase. It can auto-fix ruff violations and target specific directories. Useful for catching style issues, security warnings, and type errors before commit.
External Skill Assessment
Development
Score how well a Foundry mirror of an external skill can be built across four axes: operability, assessability, traceability, refereeability. Delegates research to subagents.
Generate Statistical Tables
Data & AI
Create publication-ready statistical tables for reports and manuscripts. Covers descriptive statistics, regression, ANOVA, correlation matrices, and APA formatting.
Internationalizing a React-Admin Application
Development
Complete guidelines for adding i18n support to a react-admin or shadcn admin kit app: provider setup, translation catalogs, converting JSX strings, plurals, and formatting.
Generate Publication-Ready TDA Figures
Data & AI
Scaffolds matplotlib figures for Topological Data Analysis following established codebase conventions. Includes templates for persistence diagrams, barcodes, null histograms, and landscape comparisons.
Frontend interface design and refinement
Development
Skill for designing, redesigning, auditing and polishing frontend interfaces: UX, visual hierarchy, accessibility, performance, design systems, and micro-interactions.
Gas Town Setup Guide
DevOps
Complete guide to install and configure Gas Town, a Go-based project management tool with rig containers and task tracking.
Skill Check
Development
Validates and reviews skills against the Agent Skills specification. Checks YAML syntax, naming conventions, description quality, file structure, and best practices.