How do I install the Rexboard Visibility And Routes skill?

Run npx skillmds@latest add rexrainbow/rexboard-visibility-and-routes in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

Is Rexboard Visibility And Routes safe to use?

This skill has not completed SkillMD's automated safety review yet. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with Rexboard Visibility And Routes?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Rexboard Visibility And Routes free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published Rexboard Visibility And Routes?

rexrainbow (@rexrainbow) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Rexboard Visibility And Routes by rexrainbow

Name: Rexboard Visibility And Routes
Author: rexrainbow

Rexboard Visibility And Routes

Use this skill when working with RexBoard fieldOfView, FieldOfView, board visibility, line of sight, LOS, blockers, cone mode, visible tiles, RexBoard Monopoly, board route traversal, route cost, or directional board paths. Triggers on: RexBoard fieldOfView, FieldOfView, board visibility, line of sight, LOS, RexBoard Monopoly, board route.

rexrainbow Updated Sep 17, 2026

File contents

RexBoard Visibility And Routes

Use this skill for board algorithms that answer visibility and route traversal questions.

Use This First

Choose the helper:

Need	Use
Visible tiles around a chess piece	`FieldOfView.findFOV(...)`
Can a piece see a target	`FieldOfView.isInLOS(...)` or `LOS(...)`
Filter visible targets	`FieldOfView.LOS(targets, ...)`
Directional route traversal	`Monopoly.getPath(...)`
Route stop/blocker rules	`Monopoly.costCallback`

Required Setup

This skill assumes pieces are already registered as RexBoard chess. If not, use rexboard-board-and-chess.

References

Read these only when needed:

references/fieldofview-config.md: FOV config, callbacks, costs, blockers, LOS, and cone options.
references/monopoly-config.md: route traversal config, callbacks, and sentinels.
references/visibility-route-recipes.md: reduced recipes for visible tiles, LOS, target filtering, and route paths.

Core Rules

Use FieldOfView for visibility; use PathFinder for shortest/reachable paths.
Use Monopoly for directional route traversal, not general A* pathfinding.
Keep occupied tests, blocker tests, pre-test callbacks, and cost callbacks separate.
Use instance sentinels (fov.BLOCKER, fov.INFINITY, monopoly.STOP, monopoly.BLOCKER) in callbacks.
Choose coneMode: 'direction' for grid-direction cones and coneMode: 'angle' for angular cones.

Source File Map

plugins/board/fieldofview/FieldOfView.d.ts: visibility config, callbacks, LOS, and FOV methods.
plugins/board/monopoly/Monopoly.d.ts: route config, cost callback, and path methods.
plugins/board/fieldofview/Factory.js: fieldOfView factory signature.
plugins/board/monopoly/Factory.js: monopoly factory signature.

Related Skills

rexboard-board-and-chess: board chess and blockers.
rexboard-grids-and-coordinates: directions, cones, distances, and line tile queries.
rexboard-movement-and-pathfinding: PathFinder and MoveTo workflows.

Gotchas

FieldOfView.BLOCKER is null; FieldOfView.INFINITY is undefined.
Monopoly.STOP is -1; Monopoly.BLOCKER is null.
LOS has several overloads; keep argument order explicit in generated code.

---name: rexboard-visibility-and-routesdescription: Use this skill when working with RexBoard fieldOfView, FieldOfView, board visibility, line of sight, LOS, blockers, cone mode, visible tiles, RexBoard Monopoly, board route traversal, route cost, or directional board paths. Triggers on: RexBoard fieldOfView, FieldOfView, board visibility, line of sight, LOS, RexBoard Monopoly, board route.---# RexBoard Visibility And RoutesUse this skill for board algorithms that answer visibility and route traversal questions.## Use This FirstChoose the helper:| Need | Use ||---|---|| Visible tiles around a chess piece | `FieldOfView.findFOV(...)` || Can a piece see a target | `FieldOfView.isInLOS(...)` or `LOS(...)` || Filter visible targets | `FieldOfView.LOS(targets, ...)` || Directional route traversal | `Monopoly.getPath(...)` || Route stop/blocker rules | `Monopoly.costCallback` |## Required SetupThis skill assumes pieces are already registered as RexBoard chess. If not, use `rexboard-board-and-chess`.## ReferencesRead these only when needed:- `references/fieldofview-config.md`: FOV config, callbacks, costs, blockers, LOS, and cone options.- `references/monopoly-config.md`: route traversal config, callbacks, and sentinels.- `references/visibility-route-recipes.md`: reduced recipes for visible tiles, LOS, target filtering, and route paths.## Core Rules- Use `FieldOfView` for visibility; use `PathFinder` for shortest/reachable paths.- Use `Monopoly` for directional route traversal, not general A* pathfinding.- Keep occupied tests, blocker tests, pre-test callbacks, and cost callbacks separate.- Use instance sentinels (`fov.BLOCKER`, `fov.INFINITY`, `monopoly.STOP`, `monopoly.BLOCKER`) in callbacks.- Choose `coneMode: 'direction'` for grid-direction cones and `coneMode: 'angle'` for angular cones.## Source File Map- `plugins/board/fieldofview/FieldOfView.d.ts`: visibility config, callbacks, LOS, and FOV methods.- `plugins/board/monopoly/Monopoly.d.ts`: route config, cost callback, and path methods.- `plugins/board/fieldofview/Factory.js`: `fieldOfView` factory signature.- `plugins/board/monopoly/Factory.js`: `monopoly` factory signature.## Related Skills- `rexboard-board-and-chess`: board chess and blockers.- `rexboard-grids-and-coordinates`: directions, cones, distances, and line tile queries.- `rexboard-movement-and-pathfinding`: PathFinder and MoveTo workflows.## Gotchas- `FieldOfView.BLOCKER` is `null`; `FieldOfView.INFINITY` is `undefined`.- `Monopoly.STOP` is `-1`; `Monopoly.BLOCKER` is `null`.- `LOS` has several overloads; keep argument order explicit in generated code.

Frequently asked questions