2x Skills

fin-2x

A marketplace of Claude Code skills built by the Fin 2x team.

Install

Add the marketplace, then install the plugin you want:

/plugin marketplace add intercom/2x-skills
/plugin install skill-tools@fin-2x

Plugins

• skill-tools — Tools for authoring and reviewing Claude Code skills. Includes the skill-review skill, which reviews skills against a closed 7-category quality rubric (Structural Discipline, Integrity, Test Coverage, Security, Content Quality, Convention, Cost) with structured JSON output and a determinism contract.
• security-tools — Harden GitHub Actions workflows against supply-chain and injection attacks. Includes the secure-github-actions skill (a 14-rule review checklist plus audit commands) and a hook that auto-loads it when you edit a workflow file.
• claude-code-tools — Meta-tools for running Claude Code well. permissions-analyzer vets your permission allowlist against a GREEN/YELLOW/RED safety model; tool-misses finds and fixes missing CLI tools / BSD-GNU incompatibilities; cc-cost-analysis is a framework for analyzing Claude Code usage costs from OpenTelemetry data.
• test-tools — Investigate and fix flaky tests. The fix-flaky-tests skill detects your framework and CI provider, classifies the flake, and enforces green-CI-as-the-only-verification discipline across RSpec, Jest, pytest, Go test, and more.
• code-review-tools — The thermo-nuclear-code-review skill runs an extremely strict structural and architectural review, hunting for "code judo" simplifications rather than correctness bugs or style nits.
• pr-tools — Open well-formed GitHub pull requests from Claude Code and attach screenshots and recordings to them. Includes create-pr (intent-gathering, diff validation, public-repo safeguards) and `attach-github-asse