get_narrative_pulse
Identify accelerating, decelerating, and emerging crypto narratives. Shows sector rotation, momentum scores, and narrative cycle phase for positioning.
This record as markdown: /tools/0xhashy-fathom-fyi/get-narrative-pulse.md
What get_narrative_pulse does on Fathom Fyi
AI agents call get_narrative_pulse to retrieve information from Fathom Fyi without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why get_narrative_pulse is rated Low
This tool retrieves and analyzes financial market data (narrative trends, momentum scores, sector rotation phases) to inform decision-making. It performs no writes, deletions, code execution, or financial transactions.
From the tool's definition Tool name 'get_narrative_pulse' and description state it 'Identify[s]...narratives' and 'Shows sector rotation, momentum scores, and narrative cycle phase' — purely retrieval/analysis of market sentiment data with no modification or execution.
Attacks that exploit this kind of access
The rule that runs get_narrative_pulse safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Fathom Fyi, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For get_narrative_pulse, this is the rule to start with:
get_narrative_pulse 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 Fathom Fyi, apply this rule, and every get_narrative_pulse call is checked against it from then on.
Questions about get_narrative_pulse
Identify accelerating, decelerating, and emerging crypto narratives. Shows sector rotation, momentum scores, and narrative cycle phase for positioning. It is categorised as a Read tool in the Fathom Fyi MCP Server, which means it retrieves data without modifying state.
Register the Fathom Fyi MCP server in PolicyLayer and add a rule for get_narrative_pulse: 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 Fathom Fyi. Nothing to install.
get_narrative_pulse 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 get_narrative_pulse 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 get_narrative_pulse. 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.
get_narrative_pulse is provided by the Fathom Fyi MCP server (0xhashy/fathom-fyi). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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