codeloop_design_compare

// WHEN AI AGENTS USE THIS TOOL

AI agents invoke codeloop_design_compare to trigger processes or run actions in Codeloop. 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 CODELOOP_DESIGN_COMPARE

codeloop_design_compare 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.

codeloop.yaml

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

See the full Codeloop policy for all 29 tools.

// DETAILS

Tool Name codeloop_design_compare

Category Execute

MCP Server Codeloop MCP Server

Risk Level High

// MORE CODELOOP TOOLS

Execute codeloop_diagnose Execute codeloop_interact Execute codeloop_record_interaction Execute codeloop_run_history Execute codeloop_start_recording Execute codeloop_stop_recording Execute codeloop_visual_review Write codeloop_generate_dev_report

View all 29 tools →

// WHAT CAN GO WRONG

Agents calling execute-class tools like codeloop_design_compare 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.

Atv build_stake_tx Atv build_unstake_tx Acdp start_local Pentagonal pentagonal_audit Pentagonal pentagonal_compile ACR — Agent Composition Records orient_me

// IN CONTEXT OF HIGH RISK

codeloop_design_compare is one of the high-risk operations in Codeloop. 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 codeloop_design_compare tool do? +

[CodeLoop] You MUST call codeloop_verify after every code change. If .codeloop/config.json is missing, call codeloop_init_project FIRST. Compare reference design(s) against the actual coded UI. Use this tool when: - The user has provided a Figma mockup, screenshot, or design reference (any image in designs/ or .codeloop/figma.json) - You want to measure how closely the coded UI matches the intended design - You need structured differences to fix specific design mismatches Modes: - mode='all' (default): auto-discovers every reference under designs/ (PNG/JPEG/WebP) and every frame in .codeloop/figma.json (Figma REST API), pulls actuals from the latest run's screenshots, runs pixelmatch per pair, writes design_compare_summary.json. Honour viewports via designs/<viewport>/<screen>.png. - mode='single': legacy single-screen path. Requires reference_image_path + screen_name. Figma: pass figma_file_url + figma_token (or set FIGMA_API_TOKEN env var and .codeloop/figma.json) to fetch frames automatically before the comparison. Returns: per-screen pixel diff scores + worst-failing reference, actual, and diff images so you can visually assess differences with your own vision capabilities. The design_compare_evidence gate (gate_check) blocks ready_for_review until min_score >= design_match_threshold.. It is categorised as a Execute tool in the Codeloop MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on codeloop_design_compare? +

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

What risk level is codeloop_design_compare? +

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

Can I rate-limit codeloop_design_compare? +

Yes. Add a rate_limit block to the codeloop_design_compare 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 codeloop_design_compare completely? +

Set action: deny in the Intercept policy for codeloop_design_compare. 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 codeloop_design_compare? +

codeloop_design_compare is provided by the Codeloop MCP server (codeloop-mcp-server). Intercept sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Let agents act without letting them run wild.