update_issue
Update fields on an existing Huly issue. Only provided fields are modified. Description updates support markdown.
This record as markdown: /tools/dugynoo-huly-mcp/update-issue.md
What update_issue does on Huly
AI agents use update_issue to create or update resources in Huly, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Huly environment.
Why update_issue is rated Medium
This tool creates or modifies data reversibly. It updates issue fields without deleting or destroying data, and the changes can be undone (typical for project management systems). The scope is limited to a single issue's fields. Severity is medium because misuse could corrupt project data or workflow states, but effects are reversible and scoped to metadata rather than financial or destructive operations.
From the tool's definition Tool description states 'Update fields on an existing Huly issue. Only provided fields are modified.' The verb 'update' and the explicit statement that it modifies fields on an existing resource confirm write capability.
Attacks that exploit this kind of access
The rule that runs update_issue safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Huly, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For update_issue, this is the rule to start with:
update_issue stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Huly, apply this rule, and every update_issue call is checked against it from then on.
Questions about update_issue
Update fields on an existing Huly issue. Only provided fields are modified. Description updates support markdown. It is categorised as a Write tool in the Huly MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Huly MCP server in PolicyLayer and add a rule for update_issue: 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 Huly. Nothing to install.
update_issue 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 update_issue 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 update_issue. 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.
update_issue is provided by the Huly MCP server (dugynoo/huly-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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