agy is registered with FormatAgyText and the agyParser emits every
stdout line as a plain EventTextDelta. There is no path for a
structured ToolCall event to come back. With ToolUse=true the router
would dispatch tool-needing tasks (security_review, spawn_elfs, file
edit) to agy; the underlying Gemini model would describe calling the
tool in prose — invented UUIDs and 'I will pause now'-style stubs —
the engine would receive only text, and the turn would hang waiting
for a tool call that never arrives.
Surfaced when /init routed to agy for a security_review task and
elf spawning visibly hallucinated in the TUI. Capability flag
flipped to false; agy stays usable for tool-free prompts (explain,
summarize, simple chat). TODO entry for native stream-json updated
to flag that the capability flip is part of that same change.
vikingowl
d38d7daf25