Why: A conversation run has no launch of its own, so a script step looked up an empty copy and refused to run.
Evidence: go test ./internal/runtime/ -run TestRegisteredWorkflowUsesItsOwnScriptCopy passed. The body is taken from the launch passed into the runner.
Impact: Intent-started runs still use the copy made at start.
Refs: feature/agent-harness-p4
Co-authored-by: Cursor <cursoragent@cursor.com>
Why: Plugin scripts and model-written scripts need the same step runner, without giving the script a way to call interpreters or start another workflow.
Evidence: go test ./... passed. Callbacks, denied tools, the 50-call cap, a 1MB line, and cancel-kills-the-process are covered. A model script does not run until the switch is on and the user confirms.
Impact: runtime.workflowScripts stays off by default. Plugin script bodies are copied into the launch. Squad entry still has no run_workflow.
Refs: feature/agent-harness-p4
Co-authored-by: Cursor <cursoragent@cursor.com>
weichenandCursor