[BUG] CachyOS Antigravtiy - Agent Executor Error: "could not convert a single message before hitting truncation"

Google Antigravity
1

I’ve been hitting this error repeatedly over the past few days and can’t get the agent to work at all. It is happening even with a completely empty workspace. Started happening after I updated Antigravtiy on Arch Linux.

The agent just dies immediately and cant get it to work.

Trajectory IDs:

  • `197f071a-01cb-4b2d-945a-f202c9c…
  • `fb15c024-3814-4ac1-9072-67ac93…

Debug info:

Trajectory ID: a3ba6a5f-24e3-41ee-90ef-98d1eb6...
Error: agent executor error: could not convert a single message before hitting truncation
(1) attached stack trace
  -- stack trace:
  | google3/third_party/jetski/cortex/cortex.(*CascadeManager).executeHelper.func1
  |   third_party/jetski/cortex/cascade_manager.go:2088
  | google3/third_party/jetski/cortex/cortex.(*CascadeManager).executeHelper.func2
  |   third_party/jetski/cortex/cascade_manager.go:2136
Wraps: (2) agent executor error
Wraps: (3) attached stack trace
  -- stack trace:
  | google3/third_party/jetski/cortex/chatconverters/chatconverters.(*TrajectoryChatConverter).GetNumTokensSinceLastCheckpoint
  |   third_party/jetski/cortex/chatconverters/trajectory_chat_converter.go:550
  ...
Wraps: (6) could not convert a single message before hitting truncation
Error types: (1) *withstack.withStack (2) *errutil.withPrefix ... (6) *errutil.leafError
2

Hi @ahmalik,

Welcome to the Forum,

Wraps: (6) could not convert a single message before hitting truncation

This error means the AI agent’s context window is full, often due to excessive information from enabled tools or services. You can try the workarounds suggested here to prevent this issue.