# Measures, tasks, and evidence MCP tools

This page documents **24 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#L2539-L2567)
- **Output:** [`ListMeasuresOutput`](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L2569-L2580)
- **Behavior:** Read only · Non-destructive · Idempotent · Closed world
- **Source:** [specification.yaml · L15919–L15930 ↗](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L15919-L15930)

### `getMeasure` — Get Measure

Get a measure by ID.

- **Input:** [`GetMeasureInput`](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L2838-L2845)
- **Output:** [`GetMeasureOutput`](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L2847-L2853)
- **Behavior:** Read only · Non-destructive · Idempotent · Closed world
- **Source:** [specification.yaml · L15931–L15942 ↗](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L15931-L15942)

### `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#L2855-L2873)
- **Output:** [`AddMeasureOutput`](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L2875-L2881)
- **Behavior:** Writes data · Non-destructive · Non-idempotent · Closed world
- **Source:** [specification.yaml · L15943–L15954 ↗](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L15943-L15954)

### `updateMeasure` — Update Measure

Update an existing measure.

- **Input:** [`UpdateMeasureInput`](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L2883-L2903)
- **Output:** [`UpdateMeasureOutput`](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L2905-L2911)
- **Behavior:** Writes data · Non-destructive · Idempotent · Closed world
- **Source:** [specification.yaml · L15955–L15966 ↗](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L15955-L15966)

### `deleteMeasure` — Delete Measure

Delete a measure.

- **Input:** [`DeleteMeasureInput`](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L2913-L2920)
- **Output:** [`DeleteMeasureOutput`](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L2922-L2929)
- **Behavior:** Writes data · Destructive · Idempotent · Closed world
- **Source:** [specification.yaml · L15967–L15978 ↗](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L15967-L15978)

### `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#L2582-L2598)
- **Output:** [`ListMeasureRisksOutput`](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L2600-L2611)
- **Behavior:** Read only · Non-destructive · Idempotent · Closed world
- **Source:** [specification.yaml · L15979–L15990 ↗](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L15979-L15990)

### `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#L2675-L2691)
- **Output:** [`ListMeasureTasksOutput`](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L2693-L2704)
- **Behavior:** Read only · Non-destructive · Idempotent · Closed world
- **Source:** [specification.yaml · L16003–L16014 ↗](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L16003-L16014)

### `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#L2706-L2719)
- **Output:** [`ListMeasureEvidencesOutput`](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L2721-L2732)
- **Behavior:** Read only · Non-destructive · Idempotent · Closed world
- **Source:** [specification.yaml · L16015–L16026 ↗](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L16015-L16026)

### `deleteEvidence` — Delete Evidence

Delete an evidence.

- **Input:** [`DeleteEvidenceInput`](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L2788-L2795)
- **Output:** [`DeleteEvidenceOutput`](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L2797-L2804)
- **Behavior:** Writes data · Destructive · Idempotent · Closed world
- **Source:** [specification.yaml · L16027–L16038 ↗](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L16027-L16038)

### `linkMeasure` — Link Measure

Link a measure to a resource (control, risk, document, third party, or treatment plan). 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#L2806-L2817)
- **Output:** [`LinkMeasureOutput`](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L2819-L2820)
- **Behavior:** Writes data · Non-destructive · Idempotent · Closed world
- **Source:** [specification.yaml · L16039–L16050 ↗](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L16039-L16050)

### `unlinkMeasure` — Unlink Measure

Unlink a measure from a resource (control, risk, document, third party, or treatment plan). 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#L2822-L2833)
- **Output:** [`UnlinkMeasureOutput`](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L2835-L2836)
- **Behavior:** Writes data · Destructive · Idempotent · Closed world
- **Source:** [specification.yaml · L16051–L16062 ↗](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L16051-L16062)

### `listRiskMeasures` — List Risk Measures

List measures linked to a risk.

- **Input:** [`ListRiskMeasuresInput`](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L6837-L6853)
- **Output:** [`ListRiskMeasuresOutput`](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L6855-L6866)
- **Behavior:** Read only · Non-destructive · Idempotent · Closed world
- **Source:** [specification.yaml · L17011–L17022 ↗](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L17011-L17022)

### `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#L7011-L7030)
- **Output:** [`ListTasksOutput`](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L7032-L7046)
- **Behavior:** Read only · Non-destructive · Idempotent · Closed world
- **Source:** [specification.yaml · L17047–L17058 ↗](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L17047-L17058)

### `getTask` — Get Task

Get a task by ID.

- **Input:** [`GetTaskInput`](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L7048-L7055)
- **Output:** [`GetTaskOutput`](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L7057-L7063)
- **Behavior:** Read only · Non-destructive · Idempotent · Closed world
- **Source:** [specification.yaml · L17059–L17070 ↗](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L17059-L17070)

### `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#L7065-L7108)
- **Output:** [`AddTaskOutput`](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L7110-L7116)
- **Behavior:** Writes data · Non-destructive · Non-idempotent · Closed world
- **Source:** [specification.yaml · L17071–L17082 ↗](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L17071-L17082)

### `updateTask` — Update Task

Update an existing task.

- **Input:** [`UpdateTaskInput`](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L7118-L7181)
- **Output:** [`UpdateTaskOutput`](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L7183-L7189)
- **Behavior:** Writes data · Non-destructive · Idempotent · Closed world
- **Source:** [specification.yaml · L17083–L17094 ↗](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L17083-L17094)

### `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#L7191-L7202)
- **Output:** [`AssignTaskOutput`](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L7204-L7210)
- **Behavior:** Writes data · Non-destructive · Idempotent · Closed world
- **Source:** [specification.yaml · L17095–L17106 ↗](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L17095-L17106)

### `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#L7212-L7219)
- **Output:** [`UnassignTaskOutput`](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L7221-L7227)
- **Behavior:** Writes data · Non-destructive · Idempotent · Closed world
- **Source:** [specification.yaml · L17107–L17118 ↗](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L17107-L17118)

### `deleteTask` — Delete Task

Delete a task.

- **Input:** [`DeleteTaskInput`](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L7229-L7236)
- **Output:** [`DeleteTaskOutput`](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L7238-L7245)
- **Behavior:** Writes data · Destructive · Idempotent · Closed world
- **Source:** [specification.yaml · L17119–L17130 ↗](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L17119-L17130)

### `listTaskComments` — List Task Comments

List comments for a task, oldest first.

- **Input:** [`ListTaskCommentsInput`](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L7301-L7317)
- **Output:** [`ListTaskCommentsOutput`](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L7319-L7333)
- **Behavior:** Read only · Non-destructive · Idempotent · Closed world
- **Source:** [specification.yaml · L17131–L17142 ↗](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L17131-L17142)

### `getTaskComment` — Get Task Comment

Get a task comment by ID.

- **Input:** [`GetTaskCommentInput`](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L7335-L7342)
- **Output:** [`GetTaskCommentOutput`](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L7344-L7350)
- **Behavior:** Read only · Non-destructive · Idempotent · Closed world
- **Source:** [specification.yaml · L17143–L17154 ↗](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L17143-L17154)

### `addTaskComment` — Add Task Comment

Add a comment to a task.

- **Input:** [`AddTaskCommentInput`](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L7352-L7366)
- **Output:** [`AddTaskCommentOutput`](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L7368-L7374)
- **Behavior:** Writes data · Non-destructive · Non-idempotent · Closed world
- **Source:** [specification.yaml · L17155–L17166 ↗](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L17155-L17166)

### `updateTaskComment` — Update Task Comment

Update an existing task comment.

- **Input:** [`UpdateTaskCommentInput`](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L7376-L7390)
- **Output:** [`UpdateTaskCommentOutput`](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L7392-L7398)
- **Behavior:** Writes data · Non-destructive · Idempotent · Closed world
- **Source:** [specification.yaml · L17167–L17178 ↗](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L17167-L17178)

### `deleteTaskComment` — Delete Task Comment

Delete a task comment.

- **Input:** [`DeleteTaskCommentInput`](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L7400-L7407)
- **Output:** [`DeleteTaskCommentOutput`](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L7409-L7416)
- **Behavior:** Writes data · Destructive · Idempotent · Closed world
- **Source:** [specification.yaml · L17179–L17190 ↗](https://github.com/getprobo/probo/blob/main/pkg/server/api/mcp/v1/specification.yaml#L17179-L17190)