AI agents use linear_archiveProject to create or update resources in Linear — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Linear environment.
Archiving a project is a write operation that modifies project metadata and visibility, making it inaccessible in normal workflows. While reversible (unlike deletion), it affects significant organizational state and could disrupt team workflows if triggered incorrectly by an AI agent. High severity reflects the potential blast radius of archiving critical projects.
From the tool's definition Tool name 'linear_archiveProject' and description 'Archive a project' indicate the tool modifies project state by archiving it. Archiving is a reversible operation (projects can be unarchived), distinguishing it from permanent deletion.
Documented attack patterns abuse exactly the kind of access linear_archiveProject gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Linear, and nothing reaches the server without passing your rules. This is the rule we recommend for linear_archiveProject:
{
"version": "1",
"default": "deny",
"tools": {
"linear_archiveProject": {
"limits": [
{
"counter": "linear_archiveproject_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}linear_archiveProject 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.
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Archive a project. It is categorised as a Write tool in the Linear MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Linear MCP server in PolicyLayer and add a rule for linear_archiveProject: 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 Linear. Nothing to install.
linear_archiveProject 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 linear_archiveProject 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 linear_archiveProject. 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.
linear_archiveProject is provided by the Linear MCP server (tacticlaunch/mcp-linear). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 182 Linear tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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182 Linear tools catalogued and risk-classified — across an index of 42,500+ MCP servers.