Low Risk

render_pgn_viewer

Render an interactive PGN game viewer that allows navigating through chess game moves. Use this for displaying complete chess games with move history, annotations, and the ability to step through moves. Supports PGN format with headers like Event, Site, Date, White, Black, Result, and move notation.

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

AI agents call render_pgn_viewer to retrieve information from Chessagine 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 render_pgn_viewer 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.

jalpp-chessagine.yaml
tools:
  render_pgn_viewer:
    rules:
      - action: allow

See the full Chessagine policy for all 37 tools.

Tool Name render_pgn_viewer
Category Read
Risk Level Low

View all 37 tools →

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

Browse the full MCP Attack Database →

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

What does the render_pgn_viewer tool do? +

Render an interactive PGN game viewer that allows navigating through chess game moves. Use this for displaying complete chess games with move history, annotations, and the ability to step through moves. Supports PGN format with headers like Event, Site, Date, White, Black, Result, and move notation.. It is categorised as a Read tool in the Chessagine MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on render_pgn_viewer? +

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

What risk level is render_pgn_viewer? +

render_pgn_viewer is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit render_pgn_viewer? +

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

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

render_pgn_viewer is provided by the Chessagine MCP server (jalpp/chessagine). Intercept sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policies on Chessagine

Open source. One binary. Zero dependencies.

npx -y @policylayer/intercept
github.com/policylayer/intercept →
// GET IN TOUCH

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