Agent Plugin
Type Inject
Adds relevant TypeScript and Svelte type signatures to OpenCode context and exposes focused type-inspection tools.
What is Type Inject?
Type Inject helps OpenCode reason about typed code without flooding the context window with entire dependency trees. It identifies symbols involved in a read, resolves nearby imports, and injects prioritized signatures within a token budget. Dedicated tools can look up types, list declarations, and run type checks when the agent needs deeper evidence.
Key capabilities
Relevant signatures
Injects types connected to the active code rather than dumping every declaration.
Bounded import resolution
Follows imports to a controlled depth so context remains tractable.
Token prioritization
Ranks declarations when the available context budget is limited.
Use cases
Understand unfamiliar APIs
Reveal parameter and return types while editing code that uses an unknown library.
Trace project types
Follow imported interfaces and aliases across a TypeScript codebase.
Check a proposed change
Run a focused type check before considering the edit complete.
Included components
Hooks
Type Context Injection
Adds relevant signatures when supported TypeScript or Svelte files are read.
MCP Servers
Type Inspection Tools
Provides lookup_type, list_types, and type_check tools.
Installation scope
- OpenCode
- A TypeScript or Svelte project
- The @nick-vi/opencode-type-inject package configured as an OpenCode plugin