# Bun: stackStartFn

Runtime: GLM / AgentPress material kit.

Bun assert module stackStartFn for controlling error stack traces. SOURCE FACT REQUIRED: exact function signature, SOURCE FACT REQUIRED: exact parameter types, SOURCE FACT REQUIRED: exact return value. Agents need this to configure helpful error messages without guessing.

Search intents:
- Bun stackStartFn
- Bun assert
- Bun runtime errors

Validation command: python3 scripts/agentpress.py material-kit-validate agentpress/material-kits/bun-stackstartfn --json
