Evidence record / hermes-agent
A dated record of one change, kept so the writing that cites it can be checked. Compiled from the sources listed below by the research run, not written for reading. The judgment lives in the issues that cite it, below.
2026-10-24-hermes-agent-hermes-as-an-mcp-server-now-requires-a-plugin-and-a-different-client-command
Hermes-as-an-MCP-server now requires a plugin and a different client command. hermes mcp serve leaves core. Install mcp-serve in the profile the client launches, then change client arguments from ["mcp", "serve"] to ["mcp-serve"]. Core deliberately does not auto-install this plugin because an external client’s configuration is not detectable as per-home use. The v0.22.5 catalog pins official plugin commit 6389dd08c1e485db708688c69e42c2b7a7360f4e; its ten conversation-bridge tools retain their names. The bridge can read the active profile’s conversation database, send through linked accounts, and respond to approvals. The optional general tool bridge remains off without --tools, and excludes terminal, file, code, process, Kanban, and delegation tools. Langfuse, Singularity, and agent import/OpenClaw migration also now live in catalog plugins. The pinned agent-importers catalog names OpenClaw, Claude Code, Codex CLI and Cursor setup import, previews before applying, and distinguishes OpenClaw’s explicit secret-migration option from other agents’ credential-file exclusions; detected existing configurations have migration paths, unlike an undetectable external MCP client.
Channel: tagged-release. Half: both. Date: 2026-10-23.
Operator consequence: Audit every launcher that embeds Hermes as an MCP server before moving to v0.22.5, including profile selection. Installing a plugin alone does not repair the old command spelling. Smaller core packaging transfers maintenance and pin review to an explicit plugin boundary; it does not reduce the authority of conversation read/send/approval access. Standalone Desktop installers did not update with this patch, so check actual version before applying a client migration.
Receipt
- https://github.com/NousResearch/hermes-agent/commit/e3a962d087c503ac089f1563430b2b5b885f5ed2
- https://github.com/NousResearch/hermes-agent/blob/v0.22.5/hermes_cli/left_core_migration.py#L239-L278
- https://github.com/NousResearch/hermes-agent/blob/v0.22.5/plugin-catalog/mcp-serve.yaml
- https://github.com/NousResearch/hermes-official-plugins/blob/6389dd08c1e485db708688c69e42c2b7a7360f4e/mcp-serve/README.md
- https://github.com/NousResearch/hermes-agent/blob/v0.22.5/plugin-catalog/agent-importers.yaml
Finding metadata
Run: 2026-10-24-weekly-digest-2026-10-13_2026-10-24-frontier-v0
Finding ID: 2026-10-24-hermes-agent-hermes-as-an-mcp-server-now-requires-a-plugin-and-a-different-client-command
Profile citations
- Hermes Agent / claim / mcp-server-plugin-migration
- Hermes Agent / posture / accessibility
Source links
Primary links, including exact changelog lines when available.
- commit2026-10-24-hermes-agent-hermes-as-an-mcp-server-now-requires-a-plugin-and-a-different-client-commandgithub.com/NousResearch/hermes-agent/commit/e3a962d087c503ac089f1563430b2b5b885f5ed2tagged commit file2026-10-24-hermes-agent-hermes-as-an-mcp-server-now-requires-a-plugin-and-a-different-client-commandNousResearch/hermes-agent / hermes_cli/left_core_migration.py#L239-L278tagged commit file2026-10-24-hermes-agent-hermes-as-an-mcp-server-now-requires-a-plugin-and-a-different-client-commandNousResearch/hermes-agent / plugin-catalog/mcp-serve.yamltagged commit file2026-10-24-hermes-agent-hermes-as-an-mcp-server-now-requires-a-plugin-and-a-different-client-commandNousResearch/hermes-official-plugins / mcp-serve/README.mdtagged commit file2026-10-24-hermes-agent-hermes-as-an-mcp-server-now-requires-a-plugin-and-a-different-client-commandNousResearch/hermes-agent / plugin-catalog/agent-importers.yaml
Versioned source: run artifact