Oh My Posh Validator

jandedobbeleer/oh-my-posh

If you're customizing your Oh My Posh prompt, this server validates your config files and segment snippets against the official schema before you apply them. It connects to ohmyposh.dev's API and exposes validation operations that catch configuration errors early, so you're not debugging theme syntax when you should be working. Reach for this when you're building custom segments or testing new prompt layouts and want immediate feedback on whether your JSON is going to work. Since Oh My Posh runs across shells and platforms, having schema validation in your editor workflow saves you from the trial and error cycle of edit, save, reload, check terminal, repeat.

GitHub stars: 23.7K
tools: 2
transport: HTTP
last updated: Oct 20, 2026

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Install

From registry metadata

$ npx add-mcp https://ohmyposh.dev/api/mcp --name validator

Run in your terminal. add-mcp asks which agents to add it to (Claude Code, Codex, Cursor and more). Add -g to install it for every project.

Review the command, arguments and environment values before installing. MCP servers run with your local permissions.

Other ways

Claude Code

$ claude mcp add --transport http validator https://ohmyposh.dev/api/mcp

Run in your terminal. Add --scope user to make it available in every project.

Tools

Verified live · 2 tools

Verified live against the running server on Nov 13, 2026.

validate_configValidate an oh-my-posh configuration against the schema. Supports JSON, YAML, and TOML formats.2 params

Validate an oh-my-posh configuration against the schema. Supports JSON, YAML, and TOML formats.

Parameters* required

content*string

The configuration content as a string (JSON, YAML, or TOML)

formatstring

The format of the configuration (auto-detect if not specified)one of json · yaml · toml · autodefault: auto

validate_segmentValidate a segment snippet against the oh-my-posh schema. Useful for validating individual prompt segments before adding them to a configuration.2 params

Validate a segment snippet against the oh-my-posh schema. Useful for validating individual prompt segments before adding them to a configuration.

Parameters* required

content*string

The segment content as a string (JSON, YAML, or TOML)

formatstring

The format of the segment (auto-detect if not specified)one of json · yaml · toml · autodefault: auto