canvas_adopt_media_candidate
按输出 key 原子采用指定媒体候选；同 bundle 输出必须一次完整选择，采用后持久工作流可继续推进。
This record as markdown: /tools/dutydeck/canvas-adopt-media-candidate.md
What canvas_adopt_media_candidate does on DutyDeck
AI agents call canvas_adopt_media_candidate to retrieve information from DutyDeck without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why canvas_adopt_media_candidate is rated Low
Even though canvas_adopt_media_candidate only reads data, uncontrolled read access leaks sensitive information and racks up API costs: an agent caught in a retry loop can make thousands of calls a minute without anyone noticing.
Attacks that exploit this kind of access
The rule that runs canvas_adopt_media_candidate safely
PolicyLayer is an MCP gateway: it sits between your AI agents and DutyDeck, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For canvas_adopt_media_candidate, this is the rule to start with:
canvas_adopt_media_candidate is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect DutyDeck, apply this rule, and every canvas_adopt_media_candidate call is checked against it from then on.
Questions about canvas_adopt_media_candidate
按输出 key 原子采用指定媒体候选；同 bundle 输出必须一次完整选择，采用后持久工作流可继续推进。. It is categorised as a Read tool in the DutyDeck MCP Server, which means it retrieves data without modifying state.
Register the DutyDeck MCP server in PolicyLayer and add a rule for canvas_adopt_media_candidate: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches DutyDeck. Nothing to install.
canvas_adopt_media_candidate is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the canvas_adopt_media_candidate rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for canvas_adopt_media_candidate. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
canvas_adopt_media_candidate is provided by the DutyDeck MCP server (taokoplay/DutyDeck). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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