Flow action inputs now support `${...}` inside strings, not only
strings that are fully wrapped in one expression. This lets authored
flows use simple prompt-like values such as:
* `query: "News about ${state.topic}"`
* `input: "Ticket ${text(state, "ticket.id", "unknown")}"`
* `sources: ["${state.primary_source}", "archive-${state.topic}"]`
Whole-expression values still preserve their runtime type, so
`${state.limit}` remains a number and `${state.domains}` remains a list.
Mixed literal and expression strings render as text.
This removes the need to build labeled strings with CEL concatenation,
which was hard to read, easy to quote incorrectly in YAML, and a poor
fit for the Flow authoring skill examples.
* Document flow agent options
Document and type inline Flow agent options so authored flows can set:
* `llm.model`, `llm.max_tokens`, and `llm.max_completion_tokens`
* `planning_config.max_attempts`
* `allow_delegation`
* `max_iter`
* `max_rpm`
* `max_execution_time` in seconds
Also tell the flow skill to omit optional fields unless needed.
* Potential fix for pull request finding 'Unused import'
Co-authored-by: Copilot Autofix powered by AI <223894421+github-code-quality[bot]@users.noreply.github.com>
---------
Co-authored-by: Copilot Autofix powered by AI <223894421+github-code-quality[bot]@users.noreply.github.com>
CEL string concatenation currently fails when prompt builders read
missing or null fields. This commit adds `text(root, "path", "default")`
custom CEL helper so prompt text can safely read nested state/output
values.
* Add generated Flow Definition authoring skill
Generate a portable skill from the Flow Definition schema so agents can
author valid declarative flows with the same reference CrewAI uses to
validate them. New declarative flow projects now write this skill.
```python
from crewai.flow.flow_definition import FlowDefinition
skill = FlowDefinition.skill(skips=(), examples_format="yaml")
```
* `examples_format` accepts `"yaml"` or `"json"`.
* Supported skips: `conversational`, `non_linear_flows`, `each`, `hitl`, `persistence`, `config`, `expression_action`, `script_action`, `tool_action`
The generated skill includes authoring rules, a routed crew example, and
an API reference extracted from the Flow, action, state, agent, crew,
and task Pydantic schemas.
* Fix declarative flow scaffold without framework import
* Fix skipped expression action guidance
* Fix markdown links in skill
