add_comment_to_pending_review

Add review comment to the requester's latest pending pull request review. A pending review needs to already exist to call this (check with the user if not sure).

SERVERGitHub SOURCEoci:ghcr.io/github/github-mcp-server:1.3.0

Medium RISK CLASS

Category Write

Parameters 100 required

Recommended Rate-limitedsee the rule below

Registry record Grade D, identity verified Pull the record →

This record as markdown: /tools/github/add-comment-to-pending-review.md

WHAT IT DOES

What add_comment_to_pending_review does on GitHub

AI agents use add_comment_to_pending_review to create or update resources in GitHub, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your GitHub environment.

Parameter	Type	Required	Description
`body`	string	—	The text of the review comment
`line`	number	—	The line of the blob in the pull request diff that the comment applies to. For multi-line comments, the last line of the range
`path`	string	—	The relative path to the file that necessitates a comment
`repo`	string	—	Repository name
`side`	string	—	The side of the diff to comment on. LEFT indicates the previous state, RIGHT indicates the new state
`owner`	string	—	Repository owner
`startLine`	number	—	For multi-line comments, the first line of the range that the comment applies to
`startSide`	string	—	For multi-line comments, the starting side of the diff that the comment applies to. LEFT indicates the previous state, RIGHT indicates the new state
`pullNumber`	number	—	Pull request number
`subjectType`	string	—	The level at which the comment is targeted

Parameters from the server's own tool schema.

RISK

Why add_comment_to_pending_review is rated Medium

This tool creates new comments on pull requests, which are write operations. While comments can technically be deleted, the primary action is creation/addition of data. The severity is medium because misuse could spam pull requests with unwanted comments or interfere with legitimate code review processes, but the blast radius is limited to a single pull request's review comments and can be remediated by deletion.

From the tool's definition Tool allows adding a review comment to a pending pull request review. The description indicates it 'Add[s] review comment' which creates new data (comments) on a GitHub pull request. This is a reversible modification of pull request review state.

Risk signalsAccepts raw HTML/template content (body) · Accepts file system path (path) · High parameter count (10 properties)

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs add_comment_to_pending_review safely

PolicyLayer is an MCP gateway: it sits between your AI agents and GitHub, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For add_comment_to_pending_review, this is the rule to start with:

add_comment_to_pending_review Rate-limited

add_comment_to_pending_review stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "add_comment_to_pending_review": {
      "limits": [
        {
          "counter": "add_comment_to_pending_review_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect GitHub, apply this rule, and every add_comment_to_pending_review call is checked against it from then on.

FAQ

Questions about add_comment_to_pending_review

What does the add_comment_to_pending_review tool do? +

Add review comment to the requester's latest pending pull request review. A pending review needs to already exist to call this (check with the user if not sure). It is categorised as a Write tool in the GitHub MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

What parameters does add_comment_to_pending_review accept? +

add_comment_to_pending_review accepts 10 parameters: body, line, path, repo, side, owner, startLine, startSide, pullNumber, subjectType. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on add_comment_to_pending_review? +

Register the GitHub MCP server in PolicyLayer and add a rule for add_comment_to_pending_review: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches GitHub. Nothing to install.

What risk level is add_comment_to_pending_review? +

add_comment_to_pending_review is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit add_comment_to_pending_review? +

Yes. Add a rate_limit block to the add_comment_to_pending_review rule in your PolicyLayer 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 add_comment_to_pending_review completely? +

Set action: deny in the PolicyLayer policy for add_comment_to_pending_review. 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 add_comment_to_pending_review? +

add_comment_to_pending_review is provided by the GitHub MCP server (oci:ghcr.io/github/github-mcp-server:1.3.0). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

More on GitHub, and thousands of servers like it.

This server

All 86 GitHub tools →

Across the catalogue

add-tag on Kanban MCP Server →kb_add on Persistent Kb →add_video on Mcptube Vision → The MCP Attack Database →

Guides

Govern customer-ops agents →Argument validation →Scoped token →