CIRCLESstandard
Comprehend · Identify · Report · Cut · List · Evaluate · Summarise
Lewis Lin's seven-step product design framework, restructured as a prompt. Ideal for feature design, scoping, and product decisions.
The components
- CComprehend
Understand the situation, scope, and unspoken assumptions.
- IIdentify
Identify the user or customer whose needs matter.
- RReport
Report their needs, pains, and jobs-to-be-done.
- CCut
Cut through to the most important problem to solve.
- LList
List candidate solutions.
- EEvaluate
Evaluate the solutions on a clear axis.
- SSummarise
Summarise the recommendation and trade-offs.
Worked example
Rough prompt
We need to design a feature that makes our users save things to read later.
Super-prompt produced by CIRCLES
[Comprehend] The product is a mobile-first news-discovery app. Users complain in App Store reviews that they "lose track of stories I wanted to come back to". We currently have no save mechanism. Scope: design a save-for-later feature; do not redesign the navigation or the home feed. [Identify] The primary user is the commuter — a 25–45 year old who reads on the go, switches devices between phone and tablet, and engages in short bursts (3–9 minutes per session). [Report] Their unmet need is the seamless interruption: "let me come back to this story without re-finding it." The pain is the friction of bookmarking in mobile browsers and the cognitive load of remembering which app they were reading in. [Cut] The core problem is recall and retrieval, not storage. A save feature that hides bookmarks behind two taps is worse than no feature at all. [List] Candidate solutions: (a) one-tap save on every story card; (b) a system-share-sheet "save to App" target; (c) automatic resumption of the last-viewed story when reopening; (d) an explicit "read later" tab in the bottom nav. [Evaluate] Score each on discoverability, time-to-save, time-to-retrieve, and implementation cost. Then identify the single solution with the best balance. [Summarise] Recommend a single solution and articulate the one trade-off the team must accept.