René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"`list_dependabot_alerts` always fails with HTTP 400 — tool hardcodes `page`/`per_page`, but the Dependabot alerts endpoint requires cursor pagination","articleBody":"### Describe the bug\nThe `list_dependabot_alerts` tool fails on every repository because it unconditionally appends `page` and `per_page` query parameters to the request. GitHub's \"List Dependabot alerts for a repository\" REST endpoint does not support `page`-based pagination — it uses cursor pagination (`before`/`after`/`first`/`last`) — and therefore responds with `400 Pagination using the page parameter is not supported.` There is no parameter exposed on the tool to suppress `page`, so the tool is completely unusable for listing alerts. By contrast, `list_code_scanning_alerts` and `list_secret_scanning_alerts` work correctly.\n\n### Affected version\n1.2.0\n\n### Steps to reproduce the behavior\n1. Call the `list_dependabot_alerts` tool with only `owner` and `repo` set (no pagination arguments).\n2. View the request the server generates and the API response.\n3. See the error — the server appends `page=1\u0026per_page=30` and the API rejects it.\n\n### Expected vs actual behavior\n**Expected:** the tool returns the repository's open Dependabot alerts (or an empty list), the same way `list_code_scanning_alerts` and `list_secret_scanning_alerts` do.\n\n**Actual:** every call returns HTTP 400 because the server sends `page`/`per_page`, which the Dependabot alerts list endpoint does not accept. This happens even when no pagination arguments are supplied (the server defaults to `page=1\u0026per_page=30`).\n\n**Likely root cause / suggested fix:** the Dependabot alerts list endpoint only supports cursor pagination. The tool should use `before`/`after`/`first`/`last` and must not send `page`/`per_page` for this endpoint (or it should paginate internally via cursors).\n\n### Logs\n```\nGET https://api.github.com/repos/OWNER/REPO/dependabot/alerts?page=1\u0026per_page=30\n→ 400 Pagination using the `page` parameter is not supported. []\n```\n","author":{"url":"https://github.com/amattas","@type":"Person","name":"amattas"},"datePublished":"2026-06-08T15:29:10.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":2},"url":"https://github.com/2648/github-mcp-server/issues/2648"}