AI agents use resolve_item to create or update resources in Zakar — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Zakar environment.
resolve_item updates backlog items (marking them complete) and optionally creates memory records. These are reversible modifications (tasks can typically be reopened, memories can be edited or deleted), not irreversible destruction. The tool does not execute code or move money. Write category applies because it creates or modifies data reversibly.
From the tool's definition Tool description states 'Mark backlog work done' and 'Optional note is saved as a memory' — modifies task/backlog state and writes memory data.
Attacks that exploit this kind of access
Mark backlog work done. Pass task_id for a curated task, OR memory_id + action_idx for a raw action item (both as returned by get_backlog). Optional note is saved as a memory. It is categorised as a Write tool in the Zakar MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Zakar MCP server in PolicyLayer and add a rule for resolve_item: 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 Zakar. Nothing to install.
resolve_item is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the resolve_item 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 resolve_item. 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.
resolve_item is provided by the Zakar MCP server (tkbrannon/zakar). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
resolve_item is one line of Zakar's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
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