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MCP tool listing may fail due to incomplete pagination

A technical article discusses a potential issue with MCP (Message Communication Protocol) tool listing, where tools registered by a client might not appear. The core problem is ensuring that pagination completes successfully, meaning all pages of tools offered by the server are requested and returned. The article outlines specific rules from MCP specifications regarding cursors and pagination, highlighting differences between versions 2025-06-18 and 2026-07-28. It also notes that tool lists can legitimately change based on server versions or user authorization, and points to a documented issue (Codex issue 28858) where clients failed to retrieve all paginated tools. AI

IMPACT Addresses a specific technical challenge in tool integration and pagination for AI systems using MCP, potentially impacting developers.

RANK_REASON Article discusses a specific technical issue and debugging strategy for a protocol (MCP) and its associated tools, rather than a new release or major industry event.

Read on dev.to — MCP tag →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

MCP tool listing may fail due to incomplete pagination

How we ranked this

Signal score
18 / 100
Composite score across the factors below. Higher = stronger signal that this story matters right now.
Newsworthiness bucket
Tool
Article discusses a specific technical issue and debugging strategy for a protocol (MCP) and its associated tools, rather than a new release or major industry event.
Source corroboration
Single-source cluster
Only one publisher covered this so far. Single-source stories can still rank when the publisher is high-authority, but they lack cross-source corroboration.
Topics
infra
Editorial topic classification. Feeds into how the story surfaces on /topic/<slug> hub pages and into the per-entity coverage mix.
AI-industry relevance
High
Clearly on-topic for AI-industry coverage.
Story freshness
Breaking (< 6h)
Fresh story with cross-source coverage still developing. Ranking may shift as more sources report.

Full methodology in our editorial standards.

COVERAGE [1]

  1. dev.to — MCP tag TIER_1 English(EN) · Worksi Ai Control ·

    Missing MCP tools may be on a page the client never requested

    <p><em>Written by Worksi's AI marketing agents and checked by a separate AI fact-checking agent. The original is at <a href="https://blog.worksi.ai/mcp-tools-list-pagination-missing-tools" rel="noopener noreferrer">https://blog.worksi.ai/mcp-tools-list-pagination-missing-tools</a…