Continued.

### Added/updated
- Refreshed Games2Tools validation to include full coverage (`29/29` games):
  - [games2tools_roundtrip_validation.txt](C:\Users\davidq\Documents\GitHub\HTML-JavaScript-Gaming\docs\dev\reports\games2tools_roundtrip_validation.txt)
- Added a full game-to-tool coverage matrix:
  - [games2tools_roundtrip_matrix.txt](C:\Users\davidq\Documents\GitHub\HTML-JavaScript-Gaming\docs\dev\reports\games2tools_roundtrip_matrix.txt)
- Updated roadmap with execution-backed Games2Tools details + report outputs:
  - [MASTER_ROADMAP_SAMPLES2TOOLS.md](C:\Users\davidq\Documents\GitHub\HTML-JavaScript-Gaming\docs\dev\roadmaps\MASTER_ROADMAP_SAMPLES2TOOLS.md)

### Current status
- `11/11` launchable games mapped with tool hints.
- `18/18` planned/non-launchable games mapped with tool hints.
- `29/29` overall coverage.
- Working tree changes right now are docs/report files only.

1. I can run a focused manual QA spot pass (top 5 launchable games) and log pass/fail results into `docs/dev/reports/games2tools_manual_qa_results.txt`.
2. Or I can generate a one-click URL bundle for all roundtrip checks to speed your manual run.

Commit comment: `Update Games2Tools closeout docs with full 29/29 toolHints validation, add roundtrip matrix report, and record detailed Games-phase completion markers in roadmap.`

Author: DavidQ

docs/dev/reports/games2tools_roundtrip_matrix.txt

@@ -0,0 +1,33 @@
+Games2Tools Roundtrip Matrix
+Generated: 2026-04-24T23:23:52.091Z
+
+Columns: gameId | launchable | tools
+Bouncing-ball | yes | physics-sandbox, state-inspector, replay-visualizer
+Breakout | yes | sprite-editor, tile-map-editor, replay-visualizer
+SolarSystem | yes | physics-sandbox, performance-profiler, state-inspector
+GravityWell | yes | vector-asset-studio, vector-map-editor, physics-sandbox
+Pong | yes | sprite-editor, tile-map-editor, replay-visualizer
+Asteroids | yes | vector-asset-studio, vector-map-editor, asset-pipeline-tool
+SpaceInvaders | yes | sprite-editor, tile-map-editor, asset-pipeline-tool
+SpaceDuel | yes | vector-asset-studio, replay-visualizer, state-inspector
+AITargetDummy | yes | state-inspector, replay-visualizer, performance-profiler
+Pacman | yes | tile-map-editor, sprite-editor, state-inspector
+vector-arcade-sample | yes | vector-asset-studio, vector-map-editor, tile-map-editor
+Frogger | no | tile-map-editor, sprite-editor, state-inspector
+DualStickArena | no | sprite-editor, vector-map-editor, performance-profiler
+ArenaShooter | no | sprite-editor, asset-pipeline-tool, replay-visualizer
+Robotron2084 | no | sprite-editor, replay-visualizer, performance-profiler
+ScrollingWorldTest | no | tile-map-editor, parallax-editor, performance-profiler
+TileCollisionDemo | no | tile-map-editor, physics-sandbox, state-inspector
+DefenderLite | no | parallax-editor, tile-map-editor, vector-asset-studio
+DonkeyKong | no | tile-map-editor, sprite-editor, physics-sandbox
+PlatformerDemo | no | tile-map-editor, sprite-editor, state-inspector
+Galaga | no | sprite-editor, replay-visualizer, performance-profiler
+RallyX | no | tile-map-editor, vector-map-editor, state-inspector
+FullArenaShooter | no | asset-pipeline-tool, replay-visualizer, performance-profiler
+ReplaySystem | no | replay-visualizer, state-inspector, performance-profiler
+MultiplayerOptional | no | state-inspector, replay-visualizer, performance-profiler
+KingOfTheIceberg | no | vector-map-editor, vector-asset-studio, tile-map-editor
+TicTacToe | no | state-inspector, replay-visualizer, performance-profiler
+ConnectFour | no | state-inspector, replay-visualizer, performance-profiler
+Othello | no | state-inspector, replay-visualizer, performance-profiler

docs/dev/reports/games2tools_roundtrip_validation.txt

@@ -1,27 +1,24 @@
 Games2Tools Validation Report
-Generated: 2026-04-24T23:17:27.512Z
+Generated: 2026-04-24T23:23:52.082Z
 
 [x] Games hub includes Tool filter control (games-filter-tool).
 [x] Games index rendering supports tool token filtering and query prepopulation (?tool=<toolId>).
 [x] Game cards render Tool Roundtrip Links from metadata toolHints.
 [x] Roundtrip links pass gameId, gameTitle, gameHref, workspaceHref, returnTo query params.
 [x] Tools shell renders Game Source return line when launched from game links.
 
+Total games in metadata: 29
+Games with toolHints: 29
+Games missing toolHints: 0
 Launchable games: 11
 Launchable games with toolHints: 11
 Launchable games missing toolHints: 0
+Planned/non-launchable games: 18
+Planned/non-launchable games with toolHints: 18
+Planned/non-launchable games missing toolHints: 0
 
-Launchable game IDs with toolHints:
-- Bouncing-ball (3 tools)
-- Breakout (3 tools)
-- SolarSystem (3 tools)
-- GravityWell (3 tools)
-- Pong (3 tools)
-- Asteroids (3 tools)
-- SpaceInvaders (3 tools)
-- SpaceDuel (3 tools)
-- AITargetDummy (3 tools)
-- Pacman (3 tools)
-- vector-arcade-sample (3 tools)
+Coverage result:
+[PASS] All games include toolHints for Games2Tools filtering and roundtrip link rendering.
 
-Launchable game IDs missing toolHints:
+Games missing toolHints:
+- none

docs/dev/roadmaps/MASTER_ROADMAP_SAMPLES2TOOLS.md

@@ -124,6 +124,11 @@
 - [x] Do the same thing for games, but use Workspace Manager.
 - [x] 100% of the game data needs to be generated from Workspace Manager
 - [x] No Tool should be used independently
+- [x] Add `Tool` filter to `games/index.html` and prepopulate from `?tool=<toolId>`.
+- [x] Render metadata-driven game-to-tool roundtrip links from `games[].toolHints`.
+- [x] Pass game launch context in roundtrip links (`gameId`, `gameTitle`, `gameHref`, `workspaceHref`, `returnTo`).
+- [x] Render game return line in tools header when launched from game roundtrip links.
+- [x] Expand `games[].toolHints` coverage to all games in metadata (`29/29`, including planned/non-launchable entries).
 
 ### Phase 6 - Phase 20 Decommission (After Parity)
 - [x] Keep `Phase 20 - Tool Preset Integration` active until Samples2Tools parity is execution-validated.
@@ -154,6 +159,9 @@
 - [x] `docs/dev/reports/samples2tools_batch_<n>_validation.txt`
 - [x] `docs/dev/reports/samples2tools_link_map_<n>.json`
 - [x] `docs/dev/reports/samples2tools_completion_report.txt` (final completion artifact)
+- [x] `docs/dev/reports/games2tools_roundtrip_validation.txt`
+- [x] `docs/dev/reports/games2tools_manual_qa_checklist.txt`
+- [x] `docs/dev/reports/games2tools_roundtrip_matrix.txt`
 
 ## Current Snapshot (from tools_used.txt)
 - [x] Current tagged samples across active tools: `59` (phase-01 through phase-19)