M5 — MCP, LSP, commands/skills

New Issue

Goal

Extend tool access beyond the built-ins: external MCP servers, language-server diagnostics,
and user-authored commands/skills.

Scope

• LSP pool + diagnostics: harness-core::lsp seam trait, harness-lsp pool (lazily
  spawns one server per language, only when its binary is on PATH), surfaced in
  edit/write/bash/glob/grep output via harness-tools::diagnostics
• rmcp stdio client + namespaced tool adapters, wired through harness-app
• Skills: SKILL.md frontmatter/body parsing + skill tool, advertised in the system prompt
• Slash commands: markdown command files under command/*.md, TUI input handling for
  /mycommand

Acceptance criteria

• A config-declared MCP server's tool is callable with ask-permission.
• Editing a broken .rs file surfaces rust-analyzer errors in the tool result.
• /mycommand works.

No due date

0% Completed

0 Open 0 Closed

Label

Show archived labels Use alt + click/enter to exclude labels

All labels No label

Project

All projects No project

Open Projects

AI Harness

Author

All users

Assignee

Assigned to nobody Assigned to anybody

claude-reviewer darman

Sort

Newest Oldest Most recently updated Least recently updated Most commented Least commented Nearest due date Farthest due date

No results

Try adjusting your search filters.