Report token consumption and USD spent on Alexandria agents. Defaults to a 7-day summary with top-5 agents by cost. Use mode=by-agent for a full per-agent breakdown, mode=by-model to see which model is eating the budget, or mode=daily for a timeseries. Costs include tournament runs; live GM calls...
Part of the Alexandria MCP server. Enforce policies on this tool with Intercept, the open-source MCP proxy.
AI agents call alexandria_spend to retrieve information from Alexandria without modifying any data. This is common in research, monitoring, and reporting workflows where the agent needs context before taking action. Because read operations don't change state, they are generally safe to allow without restrictions -- but you may still want rate limits to control API costs.
Even though alexandria_spend only reads data, uncontrolled read access can leak sensitive information or rack up API costs. An agent caught in a retry loop could make thousands of calls per minute. A rate limit gives you a safety net without blocking legitimate use.
Read-only tools are safe to allow by default. No rate limit needed unless you want to control costs.
tools:
alexandria_spend:
rules:
- action: allowSee the full Alexandria policy for all 20 tools.
Agents calling read-class tools like alexandria_spend have been implicated in these attack patterns. Read the full case and prevention policy for each:
Other tools in the Read risk category across the catalogue. The same policy patterns (rate-limit, allow) apply to each.
Report token consumption and USD spent on Alexandria agents. Defaults to a 7-day summary with top-5 agents by cost. Use mode=by-agent for a full per-agent breakdown, mode=by-model to see which model is eating the budget, or mode=daily for a timeseries. Costs include tournament runs; live GM calls will be included once instrumented.. It is categorised as a Read tool in the Alexandria MCP Server, which means it retrieves data without modifying state.
Add a rule in your Intercept YAML policy under the tools section for alexandria_spend. You can allow, deny, rate-limit, or validate arguments. Then run Intercept as a proxy in front of the Alexandria MCP server.
alexandria_spend 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 alexandria_spend rule in your Intercept 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 Intercept policy for alexandria_spend. 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.
alexandria_spend is provided by the Alexandria MCP server (mcp-server-alexandria). Intercept sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Open source. One binary. Zero dependencies.
npx -y @policylayer/intercept