> For the complete documentation index, see [llms.txt](https://ai-os-and-trend-finder.gitbook.io/ai-os-and-trend-finder-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://ai-os-and-trend-finder.gitbook.io/ai-os-and-trend-finder-docs/.spec_system/archive/sessions/phase30-session03-pixijs-runtime-boundary/implementation_summary.md). # Implementation Summary **Session ID**: `phase30-session03-pixijs-runtime-boundary` **Completed**: 2026-06-22 **Duration**: 2 hours *** ## Overview Completed the AI Rogue lazy PixiJS runtime boundary. The Play route now mounts a route-scoped React bridge that dynamically imports the runtime, initializes a PixiJS v8 WebGL canvas from committed atlas inputs, paints a Playwright-readable nonblank proof frame, reports coarse runtime events back to React, and tears down owned renderer, ticker, input, resize, visibility, and canvas resources on route exit. *** ## Deliverables ### Files Created | File | Purpose | Lines | | ---------------------------------------------------------------------------------------- | ------------------------------------------------------------------------ | ----- | | `src/extensions/ai-rogue/runtime/types.ts` | Runtime controller, event, input, resize, and snapshot contracts. | 103 | | `src/extensions/ai-rogue/runtime/assets.ts` | Committed atlas metadata validation and nearest-neighbor texture setup. | 199 | | `src/extensions/ai-rogue/runtime/input.ts` | Keyboard input sampler with command mapping and listener cleanup. | 138 | | `src/extensions/ai-rogue/runtime/renderer.ts` | PixiJS v8 WebGL mount, proof draw, ticker gate, lifecycle, and disposal. | 504 | | `src/extensions/ai-rogue/runtime/index.ts` | Public lazy runtime entrypoint. | 24 | | `src/extensions/ai-rogue/runtime/__tests__/assets.test.ts` | Atlas metadata and texture setup tests. | 81 | | `src/extensions/ai-rogue/runtime/__tests__/input.test.ts` | Input mapping, repeat handling, reset, and cleanup tests. | 101 | | `src/extensions/ai-rogue/views/runtime-canvas.tsx` | React bridge for dynamic runtime import, controls, events, and cleanup. | 423 | | `tests/e2e/ai-rogue-runtime.spec.ts` | Playwright nonblank canvas, resize, input, and remount cleanup tests. | 132 | | `src/vite-env.d.ts` | Ambient declaration for the scoped PixiJS strict-CSP helper import. | 1 | | `.spec_system/specs/phase30-session03-pixijs-runtime-boundary/spec.md` | Session specification. | 363 | | `.spec_system/specs/phase30-session03-pixijs-runtime-boundary/tasks.md` | Completed task checklist. | 87 | | `.spec_system/specs/phase30-session03-pixijs-runtime-boundary/implementation-notes.md` | Task-by-task implementation evidence. | 582 | | `.spec_system/specs/phase30-session03-pixijs-runtime-boundary/security-compliance.md` | Security and GDPR review. | 85 | | `.spec_system/specs/phase30-session03-pixijs-runtime-boundary/validation.md` | PASS validation report. | 254 | | `.spec_system/specs/phase30-session03-pixijs-runtime-boundary/IMPLEMENTATION_SUMMARY.md` | Update PRD closeout summary. | \~100 | ### Files Modified | File | Changes | | --------------------------------------------------- | -------------------------------------------------------------------------------------------------------------- | | `src/extensions/ai-rogue/views/play-view.tsx` | Replaced the static play placeholder with the runtime bridge and availability gating. | | `src/extensions/ai-rogue/__tests__/client.test.tsx` | Updated Play view expectations and import-boundary assertions. | | `src/routes/__tests__/extensions-routes.test.tsx` | Updated AI Rogue route expectations for the runtime bridge and disabled no-canvas state. | | `scripts/check-bundle-budget.sh` | Raised aggregate total client JS gzip budget from 1250 KB to 1500 KB after measured route-lazy runtime output. | | `.spec_system/state.json` | Marked Session 03 complete and cleared `current_session`. | | `.spec_system/PRD/phase_30/PRD_phase_30.md` | Updated Phase 30 progress to 3/10 and recorded Session 03 completion. | | `package.json` | Bumped version from 0.1.374 to 0.1.375. | | `README.md` | Updated displayed project version to 0.1.375. | *** ## Technical Decisions 1. **Keep PixiJS route-lazy**: PixiJS imports live inside the runtime renderer, with `runtime-canvas.tsx` as the only React bridge allowed to lazy-load the runtime. 2. **Use an imperative controller boundary**: React owns routing, controls, and coarse state while the controller owns renderer setup, ticker state, resize, input, visibility handling, and cleanup. 3. **Verify pixels through WebGL**: The renderer uses WebGL with `preserveDrawingBuffer: true` so Playwright can verify nonblank canvas output with `readPixels`. 4. **Scope the Pixi strict-CSP helper**: `pixi.js/unsafe-eval` is declared and imported only inside the lazy renderer boundary to keep the host and unrelated routes isolated. 5. **Adjust only aggregate budget**: Individual PixiJS lazy chunks stayed below the app chunk budget, so the aggregate client JS gzip ceiling was raised to match measured output without reclassifying Pixi as a watched vendor. *** ## Test Results | Metric | Value | | -------- | ------- | | Tests | 3900 | | Passed | 3900 | | Coverage | Not run | Evidence: * `bun run test` passed 3897 Vitest tests. * `bun run test -- src/extensions/ai-rogue src/routes/__tests__/extensions-routes.test.tsx` passed 33 focused tests. * `bunx playwright test tests/e2e/ai-rogue-runtime.spec.ts` passed 3 browser tests. * `bunx tsc --noEmit --pretty false`, `bun run build`, and `bun run budget:check` passed. *** ## Lessons Learned 1. PixiJS v8 runtime setup needs the strict-CSP helper to initialize reliably in this app environment, and that import can stay isolated inside the lazy renderer boundary. 2. Same-route remount cleanup must avoid destroying shared Pixi texture sources that a fresh controller may need immediately after route navigation. 3. WebGL pixel-read tests are practical for this route because the renderer explicitly preserves the drawing buffer and paints a deterministic proof frame. *** ## Future Considerations Items for future sessions: 1. Connect the economy and ledger transform without introducing raw private telemetry or automatic spend incentives. 2. Add versioned local persistence and save reset behavior before durable run state is introduced. 3. Integrate the deterministic dungeon simulation with committed pixel art and gameplay state while preserving the React/runtime ownership split. 4. Recheck aggregate bundle budget after later AI Rogue sessions add simulation, economy, and asset integration. *** ## Session Statistics * **Tasks**: 20 completed * **Files Created**: 16 * **Files Modified**: 8 * **Tests Added**: 11 * **Blockers**: 0 resolved --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter: ``` GET https://ai-os-and-trend-finder.gitbook.io/ai-os-and-trend-finder-docs/.spec_system/archive/sessions/phase30-session03-pixijs-runtime-boundary/implementation_summary.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.