# Measures, tasks, and evidence MCP tools

This page documents **18 tools** in the measures, tasks, and evidence group. Return to the [complete MCP tool reference](/docs/developers/api/mcp/tools) to browse another group.

Select a tool to inspect its schemas and behavior. Schema links open the exact definition in GitHub.

### `listMeasures` — List Measures

List all measures for the organization.

- **Input:** [`ListMeasuresInput`](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L2152-L2180)
- **Output:** [`ListMeasuresOutput`](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L2182-L2193)
- **Behavior:** Read only · Non-destructive · Idempotent · Closed world
- **Source:** [specification.yaml · L14288–L14299 ↗](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L14288-L14299)

### `getMeasure` — Get Measure

Get a measure by ID.

- **Input:** [`GetMeasureInput`](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L2451-L2458)
- **Output:** [`GetMeasureOutput`](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L2460-L2466)
- **Behavior:** Read only · Non-destructive · Idempotent · Closed world
- **Source:** [specification.yaml · L14300–L14311 ↗](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L14300-L14311)

### `addMeasure` — Add Measure

Add a new measure to the organization.

- **Input:** [`AddMeasureInput`](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L2468-L2486)
- **Output:** [`AddMeasureOutput`](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L2488-L2494)
- **Behavior:** Writes data · Non-destructive · Non-idempotent · Closed world
- **Source:** [specification.yaml · L14312–L14323 ↗](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L14312-L14323)

### `updateMeasure` — Update Measure

Update an existing measure.

- **Input:** [`UpdateMeasureInput`](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L2496-L2516)
- **Output:** [`UpdateMeasureOutput`](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L2518-L2524)
- **Behavior:** Writes data · Non-destructive · Idempotent · Closed world
- **Source:** [specification.yaml · L14324–L14335 ↗](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L14324-L14335)

### `deleteMeasure` — Delete Measure

Delete a measure.

- **Input:** [`DeleteMeasureInput`](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L2526-L2533)
- **Output:** [`DeleteMeasureOutput`](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L2535-L2542)
- **Behavior:** Writes data · Destructive · Idempotent · Closed world
- **Source:** [specification.yaml · L14336–L14347 ↗](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L14336-L14347)

### `listMeasureRisks` — List Measure Risks

List risks linked to a measure.

- **Input:** [`ListMeasureRisksInput`](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L2195-L2211)
- **Output:** [`ListMeasureRisksOutput`](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L2213-L2224)
- **Behavior:** Read only · Non-destructive · Idempotent · Closed world
- **Source:** [specification.yaml · L14348–L14359 ↗](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L14348-L14359)

### `listMeasureTasks` — List Measure Tasks

List tasks linked to a measure.

- **Input:** [`ListMeasureTasksInput`](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L2288-L2304)
- **Output:** [`ListMeasureTasksOutput`](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L2306-L2317)
- **Behavior:** Read only · Non-destructive · Idempotent · Closed world
- **Source:** [specification.yaml · L14372–L14383 ↗](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L14372-L14383)

### `listMeasureEvidences` — List Measure Evidences

List evidences linked to a measure.

- **Input:** [`ListMeasureEvidencesInput`](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L2319-L2332)
- **Output:** [`ListMeasureEvidencesOutput`](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L2334-L2345)
- **Behavior:** Read only · Non-destructive · Idempotent · Closed world
- **Source:** [specification.yaml · L14384–L14395 ↗](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L14384-L14395)

### `deleteEvidence` — Delete Evidence

Delete an evidence.

- **Input:** [`DeleteEvidenceInput`](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L2401-L2408)
- **Output:** [`DeleteEvidenceOutput`](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L2410-L2417)
- **Behavior:** Writes data · Destructive · Idempotent · Closed world
- **Source:** [specification.yaml · L14396–L14407 ↗](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L14396-L14407)

### `linkMeasure` — Link Measure

Link a measure to a resource (control, risk, document, or third party). The resource type is determined from the resource_id GID.

- **Input:** [`LinkMeasureInput`](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L2419-L2430)
- **Output:** [`LinkMeasureOutput`](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L2432-L2433)
- **Behavior:** Writes data · Non-destructive · Idempotent · Closed world
- **Source:** [specification.yaml · L14408–L14419 ↗](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L14408-L14419)

### `unlinkMeasure` — Unlink Measure

Unlink a measure from a resource (control, risk, document, or third party). The resource type is determined from the resource_id GID.

- **Input:** [`UnlinkMeasureInput`](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L2435-L2446)
- **Output:** [`UnlinkMeasureOutput`](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L2448-L2449)
- **Behavior:** Writes data · Destructive · Idempotent · Closed world
- **Source:** [specification.yaml · L14420–L14431 ↗](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L14420-L14431)

### `listTasks` — List Tasks

List all tasks for the organization or measure.

- **Input:** [`ListTasksInput`](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L5927-L5946)
- **Output:** [`ListTasksOutput`](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L5948-L5962)
- **Behavior:** Read only · Non-destructive · Idempotent · Closed world
- **Source:** [specification.yaml · L15284–L15295 ↗](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L15284-L15295)

### `getTask` — Get Task

Get a task by ID.

- **Input:** [`GetTaskInput`](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L5964-L5971)
- **Output:** [`GetTaskOutput`](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L5973-L5979)
- **Behavior:** Read only · Non-destructive · Idempotent · Closed world
- **Source:** [specification.yaml · L15296–L15307 ↗](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L15296-L15307)

### `addTask` — Add Task

Add a new task to the organization.

- **Input:** [`AddTaskInput`](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L5981-L6020)
- **Output:** [`AddTaskOutput`](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L6022-L6028)
- **Behavior:** Writes data · Non-destructive · Non-idempotent · Closed world
- **Source:** [specification.yaml · L15308–L15319 ↗](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L15308-L15319)

### `updateTask` — Update Task

Update an existing task.

- **Input:** [`UpdateTaskInput`](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L6030-L6093)
- **Output:** [`UpdateTaskOutput`](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L6095-L6101)
- **Behavior:** Writes data · Non-destructive · Idempotent · Closed world
- **Source:** [specification.yaml · L15320–L15331 ↗](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L15320-L15331)

### `assignTask` — Assign Task

Assign a task to a person.

- **Input:** [`AssignTaskInput`](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L6103-L6114)
- **Output:** [`AssignTaskOutput`](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L6116-L6122)
- **Behavior:** Writes data · Non-destructive · Idempotent · Closed world
- **Source:** [specification.yaml · L15332–L15343 ↗](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L15332-L15343)

### `unassignTask` — Unassign Task

Unassign a task from a person.

- **Input:** [`UnassignTaskInput`](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L6124-L6131)
- **Output:** [`UnassignTaskOutput`](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L6133-L6139)
- **Behavior:** Writes data · Non-destructive · Idempotent · Closed world
- **Source:** [specification.yaml · L15344–L15355 ↗](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L15344-L15355)

### `deleteTask` — Delete Task

Delete a task.

- **Input:** [`DeleteTaskInput`](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L6141-L6148)
- **Output:** [`DeleteTaskOutput`](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L6150-L6157)
- **Behavior:** Writes data · Destructive · Idempotent · Closed world
- **Source:** [specification.yaml · L15356–L15367 ↗](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L15356-L15367)