tarjan_scc
Find all strongly connected components of a directed graph using Tarjan's algorithm.
This record as markdown: /tools/io-github-malamutemayhem-unclick-mcp-server/tarjan-scc.md
What tarjan_scc does on UnClick
AI agents call tarjan_scc to retrieve information from UnClick without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
edges | array | Yes | Array of directed edges |
Parameters from the server's own tool schema.
Why tarjan_scc is rated Low
Tarjan's SCC algorithm is a pure computational algorithm that analyzes a directed graph and returns results without modifying data, executing external code, or triggering side effects. This is a read-only mathematical operation—it retrieves structural information from a graph.
From the tool's definition Tool performs graph analysis using Tarjan's algorithm to find strongly connected components. No side effects, state changes, or external operations are indicated. The description contains only query/computation of graph properties.
Attacks that exploit this kind of access
The rule that runs tarjan_scc safely
PolicyLayer is an MCP gateway: it sits between your AI agents and UnClick, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For tarjan_scc, this is the rule to start with:
tarjan_scc 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 UnClick, apply this rule, and every tarjan_scc call is checked against it from then on.
Questions about tarjan_scc
Find all strongly connected components of a directed graph using Tarjan's algorithm. It is categorised as a Read tool in the UnClick MCP Server, which means it retrieves data without modifying state.
tarjan_scc accepts 1 parameter: edges. Required: edges. The full parameter table on this page comes from the server's own tool schema.
Register the UnClick MCP server in PolicyLayer and add a rule for tarjan_scc: 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 UnClick. Nothing to install.
tarjan_scc 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 tarjan_scc 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 tarjan_scc. 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.
tarjan_scc is provided by the UnClick MCP server (@unclick/mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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