Permanently stop a streaming or paused job and mark it as completed. Use this action to terminate ongoing human task assignments.
Stop a stream permanently and mark the job as completed. Can be called by agent or human on STREAMING or PAUSED jobs.
| Name | Required | Description | Default |
|---|---|---|---|
| job_id | Yes | The job ID | |
| agent_key | Yes | Your agent API key (starts with hp_) |
Changes observed during successful MCP inspections.
v1.2.3Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations provided, the description carries the full transparency burden. It discloses the permanent, irreversible nature of the action and the required job states, but does not elaborate on side effects, such as whether the action can be undone or any cleanup behavior.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is two short sentences with no redundancy. The main action is front-loaded, and each sentence adds distinct information: the action and the usage conditions. Every word earns its place.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
For a two-parameter tool with full schema coverage, the description covers the core action, state preconditions, and permitted callers. It does not describe behavior for invalid states or post-conditions beyond marking as completed, but it is adequately complete for its simplicity.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, so the description does not need to add parameter details. The description adds no additional parameter meaning beyond what the schema already provides, so the baseline score of 3 applies.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states a specific action (stop a stream) and its permanent effect (mark job as completed), distinguishing it from sibling tools like pause_stream or resume_stream by emphasizing 'permanently' and the completion aspect.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description specifies the applicable job states (STREAMING or PAUSED) and permitted callers (agent or human), giving clear context for when to use the tool. It does not explicitly mention alternatives or exclusions, but the permanent nature implies a distinction from pause_stream.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.