## 1. Inventory what has actually been read

Read the three snapshots. Make a coverage table for content, documentation, license, code and cost. Keep unreadable content missing. Do not access X or install dependencies. Save intake.md.

Expected: A three-candidate evidence inventory.
Check: B01 source and license remain unverified.

## 2. Choose one independently testable goal

Rank by available material and validation cost. Select B01 for investigation and explain B02/B03 deferral. Limit the goal to a three-row bar chart plus table; no backend/SaaS or agent launch.

Expected: A selection and minimal scope.
Check: B01 is not called a verified recommendation.

## 3. Specify input, output and acceptance

Write prototype-brief.md: input 12/18/15, bar chart/table, Tuesday maximum, no whole-page overflow at 375px, system fonts and no external requests. State this does not validate the third-party library. Define screenshot and value checks.

Expected: An executable prototype brief.
Check: Acceptance is observable and calculable, not just attractive.

## 4. Build a local standalone example

Generate standalone HTML/CSS from the brief with no external script, image or font. Retain all rows and a text table; label synthetic data near the top. Do not install packages, request external resources or write other repositories.

Expected: An independently openable page.
Check: The title identifies a native example, not completed library integration.

## 5. Check data, mobile layout and actual evidence

Open the prototype and check 12/18/15, maximum 18, text table and 375px layout. Record actual viewport and faults. If browser access fails, mark that check unverified; return no simulated screenshot. Keep local with no push/deployment.

Expected: Actual screenshots and checks.
Check: Chart/table agree; no page overflow or external resources.

## 6. Review dependencies before any later integration

List official docs, license, version, cost, repository and acceptance needed for further integration. Deliver a plan only. Do not start subagents/cloud agents, install third-party packages, create PRs or deploy without authorization.

Expected: A follow-up investigation list.
Check: Prototype results and unverified third-party capabilities remain separate.