Low Risk

pr-view

Views a pull request by number, URL, or branch. Returns structured data with state, checks, review decision, diff stats, author, labels, draft status, assignees, milestone, and timestamps.

Accepts file system path (path)

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

@paretools/github Read Risk 2/5

AI agents call pr-view to retrieve information from Github 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 pr-view 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.

io-github-dave-london-github.yaml
tools:
  pr-view:
    rules:
      - action: allow

See the full Github policy for all 27 tools.

Tool Name pr-view
Category Read
MCP Server Github MCP Server
Risk Level Low

View all 27 tools →

Agents calling read-class tools like pr-view 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 pr-view tool do? +

Views a pull request by number, URL, or branch. Returns structured data with state, checks, review decision, diff stats, author, labels, draft status, assignees, milestone, and timestamps.. It is categorised as a Read tool in the Github MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on pr-view? +

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

What risk level is pr-view? +

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

Can I rate-limit pr-view? +

Yes. Add a rate_limit block to the pr-view 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 pr-view completely? +

Set action: deny in the Intercept policy for pr-view. 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 pr-view? +

pr-view is provided by the Github MCP server (@paretools/github). Intercept sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policies on Github

Open source. One binary. Zero dependencies.

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

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