Unity Navmesh

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: Can be slow.

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.