# unstar_repository

A write tool on the GitHub MCP server.

Agent View of the PolicyLayer registry record for `unstar_repository`. HTML page: https://policylayer.com/tools/io-github-aifity-omnigit-mcp/unstar-repository

## Facts

- Tool: `unstar_repository`
- Server: GitHub (`oci:ghcr.io/aifity/omnigit-mcp:0.5.0`) — https://policylayer.com/tools/io-github-aifity-omnigit-mcp.md
- Homepage: https://github.com/aifity/omnigit-mcp
- Risk category: Write (Medium risk)
- Registry record: grade F, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Rate-limited

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "unstar_repository",
    "arguments": {}
  }
}
```

## Why unstar_repository is rated Medium

Unstarring a repository removes a star/bookmark association from a repository. This is a reversible write operation (the user can re-star the repository at any time), with minimal blast radius as it only affects the user's own star list and has no impact on the repository itself or its data.

From the tool's own definition: "Unstar repository"

## Use case

AI agents use unstar_repository 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.

## Recommended policy (PolicyLayer)

Verdict: **Rate-limited**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches GitHub:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "unstar_repository": {
      "limits": [
        {
          "counter": "unstar_repository_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}
```

## Other tools on GitHub (244)

- `delete_file` — Destructive — https://policylayer.com/tools/io-github-aifity-omnigit-mcp/delete-file.md
- `force` — Destructive — https://policylayer.com/tools/io-github-aifity-omnigit-mcp/force.md
- `git_reset` — Destructive — https://policylayer.com/tools/io-github-aifity-omnigit-mcp/git-reset.md
- `git_worktree_prune` — Destructive — https://policylayer.com/tools/io-github-aifity-omnigit-mcp/git-worktree-prune.md
- `git_worktree_remove` — Destructive — https://policylayer.com/tools/io-github-aifity-omnigit-mcp/git-worktree-remove.md
- `actions_run_trigger` — Execute — https://policylayer.com/tools/io-github-aifity-omnigit-mcp/actions-run-trigger.md
- `detach` — Execute — https://policylayer.com/tools/io-github-aifity-omnigit-mcp/detach.md
- `git_checkout` — Execute — https://policylayer.com/tools/io-github-aifity-omnigit-mcp/git-checkout.md
- `git_pull` — Execute — https://policylayer.com/tools/io-github-aifity-omnigit-mcp/git-pull.md
- `git_push` — Execute — https://policylayer.com/tools/io-github-aifity-omnigit-mcp/git-push.md
- `git_worktree_add` — Execute — https://policylayer.com/tools/io-github-aifity-omnigit-mcp/git-worktree-add.md
- `git_worktree_lock` — Execute — https://policylayer.com/tools/io-github-aifity-omnigit-mcp/git-worktree-lock.md
- `autoInit` — Other — https://policylayer.com/tools/io-github-aifity-omnigit-mcp/autoinit.md
- `base` — Other — https://policylayer.com/tools/io-github-aifity-omnigit-mcp/base.md
- `base_branch` — Other — https://policylayer.com/tools/io-github-aifity-omnigit-mcp/base-branch.md
- `base_ref` — Other — https://policylayer.com/tools/io-github-aifity-omnigit-mcp/base-ref.md
- `before_id` — Other — https://policylayer.com/tools/io-github-aifity-omnigit-mcp/before-id.md
- `branch` — Other — https://policylayer.com/tools/io-github-aifity-omnigit-mcp/branch.md
- `branch_name` — Other — https://policylayer.com/tools/io-github-aifity-omnigit-mcp/branch-name.md
- `color` — Other — https://policylayer.com/tools/io-github-aifity-omnigit-mcp/color.md
- `comment_id` — Other — https://policylayer.com/tools/io-github-aifity-omnigit-mcp/comment-id.md
- `commentId` — Other — https://policylayer.com/tools/io-github-aifity-omnigit-mcp/commentid.md
- `commit_title` — Other — https://policylayer.com/tools/io-github-aifity-omnigit-mcp/commit-title.md
- `commitID` — Other — https://policylayer.com/tools/io-github-aifity-omnigit-mcp/commitid.md
- `direction` — Other — https://policylayer.com/tools/io-github-aifity-omnigit-mcp/direction.md
- `gist_id` — Other — https://policylayer.com/tools/io-github-aifity-omnigit-mcp/gist-id.md
- `issue_number` — Other — https://policylayer.com/tools/io-github-aifity-omnigit-mcp/issue-number.md
- `item_type` — Other — https://policylayer.com/tools/io-github-aifity-omnigit-mcp/item-type.md
- `job_id` — Other — https://policylayer.com/tools/io-github-aifity-omnigit-mcp/job-id.md
- `message` — Other — https://policylayer.com/tools/io-github-aifity-omnigit-mcp/message.md
- …and 214 more: https://policylayer.com/tools/io-github-aifity-omnigit-mcp.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

---

Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=io-github-aifity-omnigit-mcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/io-github-aifity-omnigit-mcp