> ## Documentation Index
> Fetch the complete documentation index at: https://docs.fabro.sh/llms.txt
> Use this file to discover all available pages before exploring further.

# Unlimited tool rounds and workflow syntax improvements

## Unlimited agent tool rounds

Agent stages no longer have an artificial cap on tool rounds per input or subagent turns. Previously, the default limits could cause agents to stop mid-task on complex operations. Both `max_tool_rounds_per_input` and subagent `max_turns` now default to unlimited, so agents run until they complete their work or hit the context window.

## More

<Accordion title="Workflows">
  * Condition expressions now support quoted strings: `edge [label="status == \"ready\""]`
  * `"end"` and `"End"` are now recognized as exit node identifiers alongside `"END"`
  * Edge selection now falls back to the default edge when no condition matches, instead of erroring
  * `default_max_retries` attribute renamed to `max_retries` on graph-level stylesheets
  * Removed `error_policy` and `k_of_n`/`quorum` attributes from parallel nodes — parallel stages now always wait for all branches
</Accordion>

<Accordion title="Improvements">
  * Subagents are now automatically cleaned up when a session closes, preventing orphaned background processes
  * All 5xx HTTP status codes from LLM providers are now classified as retryable server errors
  * Request timeouts from LLM providers are now treated as non-retryable by default to avoid redundant retries on slow requests
</Accordion>

<Accordion title="Fixes">
  * Fixed workflow slug lookup failing for split and resumed runs
  * Fixed split run metadata being lost across engine restarts
  * Fixed split run lifecycle lookup returning stale state
</Accordion>