zeroclaw-labs/zeroclaw

[Feature]: Add MCP resource and prompt support

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#4467 opened on Mar 24, 2026

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 (1 comment) (5 reactions) (0 assignees)Rust (31,341 stars) (4,614 forks)batch import
enhancementhelp wantedpriority:p2risk: mediumstatus:acceptedstatus:no-staletooltool:mcp

Description

Summary

Add MCP resource and prompt support

Problem statement

ZeroClaw currently integrates with external MCP servers as a tool-only client. It initializes MCP connections, lists tools, and executes tool calls, but it does not expose MCP resources or prompts to the agent. This limits compatibility with MCP servers that provide important context through resources or prompts.

As a result, users cannot access non-tool MCP capabilities, and some MCP servers are only partially usable from ZeroClaw. Current behavior is sufficient for tool-centric servers, but it is incomplete for broader MCP interoperability.

Proposed solution

Extend the MCP client and runtime integration to support MCP resources and prompts in addition to tools.

Non-goals / out of scope

No response

Alternatives considered

No response

Acceptance criteria

No response

Architecture impact

No response

Risk and rollback

No response

Breaking change?

No

Data hygiene checks

  • I removed personal/sensitive data from examples, payloads, and logs.
  • I used neutral, project-focused wording and placeholders.

Contributor guide

Tech stack
rust
Domain
backendapi
Issue type
feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-2 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
RustMCP protocolzeroclaw codebase
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
45
Research direction
Investigate the existing MCP tool client implementation in zeroclaw, for example the client module that initializes MCP connections and executes tools. Then extend that module to also handle resource and prompt capabilities as per the MCP specification. Review the MCP specification for resources and prompts to understand the protocol differences from tools.