seek_relative
Relative seek — forward/back by delta_ms from current progress (GET /me/player then PUT /me/player/seek, clamped to [0, duration]). Quota: 1 read + 1 write.
This record as markdown: /tools/novalux12-spotify-mcp/seek-relative.md
What seek_relative does on Spotify
AI agents invoke seek_relative to trigger actions in Spotify. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call: builds kicked off, notifications sent, workflows started.
Why seek_relative is rated High
Triggers external Spotify playback position change via sequential read and write operations.
From the tool's definition GET /me/player then PUT /me/player/seek
Attacks that exploit this kind of access
The rule that runs seek_relative safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Spotify, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For seek_relative, this is the rule to start with:
seek_relative stays usable, but rate-capped: a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Spotify, apply this rule, and every seek_relative call is checked against it from then on.
Questions about seek_relative
Relative seek — forward/back by delta_ms from current progress (GET /me/player then PUT /me/player/seek, clamped to [0, duration]). Quota: 1 read + 1 write. It is categorised as a Execute tool in the Spotify MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
Register the Spotify MCP server in PolicyLayer and add a rule for seek_relative: 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 Spotify. Nothing to install.
seek_relative is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.
Yes. Add a rate_limit block to the seek_relative 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 seek_relative. 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.
seek_relative is provided by the Spotify MCP server (@novalux12/spotify-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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