// MCP TOOL REFERENCE

gas_report

Run tests and generate a gas usage report (forge test --zksync --gas-report). Note: zkSync gas values are aggregate-only (no computation/pubdata breakdown).

Part of the Foundry Zksync MCP server. Enforce policies on this tool with Intercept, the open-source MCP proxy.

foundry-zksync-mcp Execute Risk 3/5

// WHEN AI AGENTS USE THIS TOOL

AI agents invoke gas_report to trigger processes or run actions in Foundry Zksync. Execute operations can have side effects beyond the immediate call -- triggering builds, sending notifications, or starting workflows. Rate limits and argument validation are essential to prevent runaway execution.

// WHY ENFORCE A POLICY ON GAS_REPORT

gas_report can trigger processes with real-world consequences. An uncontrolled agent might start dozens of builds, send mass notifications, or kick off expensive compute jobs. Intercept enforces rate limits and validates arguments to keep execution within safe bounds.

// RECOMMENDED POLICY

Execute tools trigger processes. Rate-limit and validate arguments to prevent unintended side effects.

io-github-jrigada-foundry-zksync.yaml

tools:
  gas_report:
    rules:
      - action: allow
        rate_limit:
          max: 10
          window: 60
        validate:
          required_args: true

See the full Foundry Zksync policy for all 21 tools.

// DETAILS

Tool Name gas_report

Category Execute

MCP Server Foundry Zksync MCP Server

Risk Level High

// MORE FOUNDRY ZKSYNC TOOLS

Destructive clean Execute anvil_zksync Execute cast_nonce Execute compile Execute deploy Execute run_script Write cast_send Write init

View all 21 tools →

// WHAT CAN GO WRONG

Agents calling execute-class tools like gas_report have been implicated in these attack patterns. Read the full case and prevention policy for each:

Browse the full MCP Attack Database →

// OTHER EXECUTE TOOLS ACROSS MCP SERVERS

Other tools in the Execute risk category across the catalogue. The same policy patterns (rate-limit, validate) apply to each.

Agent Passport System — Cryptographic Identity for AI Agents commerce_preflight Agent Passport System — Cryptographic Identity for AI Agents execute_with_context Agent Passport System — Cryptographic Identity for AI Agents gateway_execute_approval Agent Passport System — Cryptographic Identity for AI Agents governance_360 Agent Passport System — Cryptographic Identity for AI Agents parse_governance_block_html AgentClear — API Marketplace for AI Agents call_service

// IN CONTEXT OF HIGH RISK

gas_report is one of the high-risk operations in Foundry Zksync. For the full severity-focused view — only the high-risk tools with their recommended policies — see the breakdown for this server, or browse all high-risk tools across every MCP server.

// RELATED READING

// FAQ

What does the gas_report tool do? +

Run tests and generate a gas usage report (forge test --zksync --gas-report). Note: zkSync gas values are aggregate-only (no computation/pubdata breakdown).. It is categorised as a Execute tool in the Foundry Zksync MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on gas_report? +

Add a rule in your Intercept YAML policy under the tools section for gas_report. You can allow, deny, rate-limit, or validate arguments. Then run Intercept as a proxy in front of the Foundry Zksync MCP server.

What risk level is gas_report? +

gas_report is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit gas_report? +

Yes. Add a rate_limit block to the gas_report 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.

How do I block gas_report completely? +

Set action: deny in the Intercept policy for gas_report. 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.

What MCP server provides gas_report? +

gas_report is provided by the Foundry Zksync MCP server (foundry-zksync-mcp). Intercept sits as a proxy in front of this server to enforce policies before tool calls reach the server.

gas_report

Enforce policies on Foundry Zksync