Applies FRAME to software-engineering work: understand the problem and existing system, choose an approach, implement it, and validate the result.
FRAME applies to requests to implement, change, extend, debug, or refactor code and systems. When a request combines explanation with a change, apply FRAME to the change.
For those tasks, use the `frame` skill and follow it through completion.
FRAME does not apply to purely informational questions, code explanations, or read-only search and inspection. Do not mention FRAME when it does not apply.
Do the work each stage requires; do not use stage names as a substitute for it.