T3 Code is an app for controlling AI coding agents running on a user's computer through mobile, web, and desktop interfaces. Developers use it to work remotely with supported agents such as Codex, Claude Code, Cursor, Grok Build, OpenCode, and Antigravity. The catalogue add-ons support the T3 Code workflow.
This repository also configures its own agents. See what t3code tells them →
Skill Claude CodeCodex
Public API JSDoc. Use when authoring or reviewing Effect API documentation, refining a module's documentation, or fixing documentation related diagnostics.
Skill Claude CodeCodex
AI documentation. Use when editing ai-docs/src or regenerating LLMS.md.
Skill Claude CodeCodex
Bundle analysis. Use when measuring current bundle size, comparing stable or selected fixtures, inspecting composition, or cleaning retained comparison state.
Skill Claude CodeCodex
Concise PR finalization changesets. Use when implementation scope is complete and focused validation has finished to classify release impact, consolidate the PR's existing changeset, or write its consumer release note.
Skill Claude CodeCodex
GitHub Actions maintenance. Use when authoring or reviewing workflows or composite actions, especially event, permission, action-reference, artifact, setup, or concurrency changes.
Skill Claude CodeCodex
Dependency maintenance. Use when adding, moving, or upgrading dependencies, changing pnpm or JavaScript runtimes, updating TypeScript or build/test tools, or changing native-build policy, patches, or test images.
Skill Claude CodeCodex
Effect development guidance. Use when implementing or reviewing code that composes Effect APIs or patterns.
Skill Claude CodeCodex
Use when changing how a v3 public API maps to v4, editing migration annotations, or regenerating migration/v3-to-v4.md.
Skill Claude CodeCodex
Package registration. Use when adding a workspace package, making a private package publishable, renaming a package, or moving its workspace path.
Skill Claude CodeCodex
Performance analysis. Use for runtime throughput or latency benchmarks, TypeScript compiler cost, performance regressions, comparison harnesses, or thresholds.
Skill Claude CodeCodex
Test development. Use when adding or changing Vitest or Tstyche coverage. Choose Tstyche only for intended compiler behavior such as inference, assignability, rejection, or displayed public types.
Skill Claude CodeCodex
Vendored assets. Use when importing or updating checked-in third-party or externally generated JavaScript, CSS, registries, schemas, snapshots, or Scalar, Swagger, and MIME artifacts.
At most 3 mods per repository are shown here, and a mod shipped inside a plugin is left to that plugin's page — the rest are on their repository pages: