Navmesh

---
name: unity-navmesh
description: Bake and query Unity NavMesh
---

> **Before calling any skill in this module:** if you are about to call a skill with parameters guessed from its name or description, STOP — read this file (or fetch its schema via `GET /skills/recommend?includeSchema=true`) first. If you already have the parameter definitions from recommend/schema, you may proceed straight to dryRun.

## Triggers
- Setting up navigation
- Baking a NavMesh
- Testing agent paths
- Tuning bake parameters
- 搭建导航、烘焙 NavMesh、测试 Agent 路径、调整烘焙参数

# NavMesh Skills

Bake / clear NavMesh data, calculate paths, sample positions, and configure NavMeshAgent / NavMeshObstacle components.

## Operating Mode

- **Approval**：查询类 skill（`navmesh_calculate_path` / `navmesh_sample_position` / `navmesh_get_settings`，源码标 `SkillMode.SemiAuto`）直接执行；变更类（`navmesh_bake` / `navmesh_add_agent` / `navmesh_set_agent` / `navmesh_add_obstacle` / `navmesh_set_obstacle` / `navmesh_set_area_cost`，标 `SkillMode.FullAuto`）需用户 grant，grant 后服务端一步执行返结果。
- **Auto / Bypass**：所有未被禁列表拦截的 skill 直接执行。
- 本模块**含 Delete 类 skill**：`navmesh_clear` 标记为 `SkillOperation.Delete`，会被 `IsForbiddenInSemi` 静态拦截 —— 仅 **Bypass** 模式或将其加入 **Allowlist** 才能调用。
- `navmesh_bake` 同步阻塞主线程；大场景可能很慢，调用前提醒用户。

**DO NOT** (common hallucinations):
- `navmesh_create` does not exist → use `navmesh_bake` to generate NavMesh
- `navmesh_add_agent_component` / `navmesh_set_agent_speed` do not exist → use `navmesh_add_agent` + `navmesh_set_agent` (convenience wrappers), or `component_add`/`component_set_property` for full control
- NavMesh must be re-baked after scene geometry changes

**Routing**:
- For NavMeshAgent/NavMeshObstacle components → use `component` module
- For path calculation → `navmesh_calculate_path` (this module)

## Skills

### `navmesh_bake`
Bake the NavMesh (Synchronous). **Warning: blocks the Editor, can be slow on large scenes.**
**Parameters:** None.

### `navmesh_clear`
Clear the NavMesh data.
**Parameters:** None.

### `navmesh_calculate_path`
Calculate a path between two points.
**Parameters:**
- `startX`, `startY`, `startZ` (float): Start position.
- `endX`, `endY`, `endZ` (float): End position.
- `areaMask` (int, optional): NavMesh area mask.

**Returns:** `{ status, valid, distance, cornerCount, corners }`

- `status`: NavMeshPathStatus string (`PathComplete` / `PathPartial` / `PathInvalid`)
- `valid`: `true` only when `status == "PathComplete"`
- `distance`: total path length (0 for invalid paths)
- `cornerCount`: number of corner points in `corners`
- `corners`: array of `{x, y, z}` waypoints (empty when no path)

### `navmesh_add_agent`
Add NavMeshAgent component to an object.

| Parameter | Type | Required | Default | Description |
|-----------|------|----------|---------|-------------|
| name | string | No | null | GameObject name |
| instanceId | int | No | 0 | GameObject instance ID |
| path | string | No | null | GameObject hierarchy path |

**Returns:** `{ success, gameObject }`

### `navmesh_set_agent`
Set NavMeshAgent properties (speed, acceleration, radius, height, stoppingDistance).

| Parameter | Type | Required | Default | Description |
|-----------|------|----------|---------|-------------|
| name | string | No | null | GameObject name |
| instanceId | int | No | 0 | GameObject instance ID |
| path | string | No | null | GameObject hierarchy path |
| speed | float | No | null | Agent movement speed |
| acceleration | float | No | null | Agent acceleration |
| angularSpeed | float | No | null | Agent angular speed |
| radius | float | No | null | Agent radius |
| height | float | No | null | Agent height |
| stoppingDistance | float | No | null | Distance to stop before target |

**Returns:** `{ success, gameObject, speed, radius }`

### `navmesh_add_obstacle`
Add NavMeshObstacle component to an object.

| Parameter | Type | Required | Default | Description |
|-----------|------|----------|---------|-------------|
| name | string | No | null | GameObject name |
| instanceId | int | No | 0 | GameObject instance ID |
| path | string | No | null | GameObject hierarchy path |
| carve | bool | No | true | Enable carving |

**Returns:** `{ success, gameObject, carving }`

### `navmesh_set_obstacle`
Set NavMeshObstacle properties (shape, size, carving).

| Parameter | Type | Required | Default | Description |
|-----------|------|----------|---------|-------------|
| name | string | No | null | GameObject name |
| instanceId | int | No | 0 | GameObject instance ID |
| path | string | No | null | GameObject hierarchy path |
| shape | string | No | null | Obstacle shape (e.g. Box, Capsule) |
| sizeX | float | No | null | Obstacle size X |
| sizeY | float | No | null | Obstacle size Y |
| sizeZ | float | No | null | Obstacle size Z |
| carving | bool | No | null | Enable carving |

**Returns:** `{ success, gameObject, shape, carving }`

### `navmesh_sample_position`
Find nearest point on NavMesh.

| Parameter | Type | Required | Default | Description |
|-----------|------|----------|---------|-------------|
| x | float | Yes | - | Source position X |
| y | float | Yes | - | Source position Y |
| z | float | Yes | - | Source position Z |
| maxDistance | float | No | 10 | Maximum search distance |

**Returns:** `{ success, found, point: { x, y, z }, distance }`

### `navmesh_set_area_cost`
Set area traversal cost.

| Parameter | Type | Required | Default | Description |
|-----------|------|----------|---------|-------------|
| areaIndex | int | Yes | - | NavMesh area index |
| cost | float | Yes | - | Traversal cost value |

**Returns:** `{ success, areaIndex, cost }`

### `navmesh_get_settings`
Get NavMesh build settings.

**Parameters:** None.

**Returns:** `{ success, agentRadius, agentHeight, agentSlope, agentClimb }`

---
## Exact Signatures

Exact names, parameters, defaults, and returns are defined by `GET /skills/schema` or `unity_skills.get_skill_schema()`, not by this file.