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API reference
MCP server
ChangelogEnvironment variables
Tool timeout
heliyos_ask waits up to 90 seconds for Heliyos to answer, so give tool calls at least 120 seconds.
When a client cuts a call short, the run keeps going in Heliyos. Find it with
heliyos_runs_list and follow it with heliyos_runs_get and wait: true, which waits up to 30 seconds per call.
A rate-limited request (HTTP 429) is retried once after the Retry-After delay, capped at 30 seconds, so a heliyos_ask that hits the limit can take about 125 seconds. If you see timeouts near the limit, raise the timeout to 150 seconds.
Response size
Reads takeresponse_format: concise (the default) returns a short summary, detailed returns everything. Lists take limit (1 to 100) and cursor. Large answers are cut with a note telling the agent how to ask for less.