failmodes
MCP server for the Fail Modes taxonomy — a knowledge base of AI system failure modes
Should I use this
Quality & Safety
Based on automated analysis of tool definitions and protocol compliance.
Context Cost
This is the approximate number of tokens consumed each time the server's tools are loaded into a model's context. Higher counts reduce the attention available for other tasks.
Install
One-Click Install
Add this to your `claude_desktop_config.json` file:
{
"mcpServers": {
"failmodes": {
"command": "npx",
"args": [
"failmodes-mcp"
]
}
}
}Runnable packages
0.1.0stdioRemote endpoints
https://www.failmodes.com/api/mcpstreamable-httpWhat it can do
Tool inventory
Tools (4)
🟢search_failure_modes(symptom)
Search the Fail Modes taxonomy by symptom text or keyword phrase. Returns ranked matches with id, name, category, and matched context.
Input Schema
{
"type": "object",
"properties": {
"symptom": {
"type": "string",
"minLength": 1,
"description": "Symptom phrase or keyword to search for, e.g. 'made up a citation' or 'refused to help after pushback'"
}
},
"required": [
"symptom"
],
"$schema": "http://json-schema.org/draft-07/schema#"
}🟢get_failure_mode(id)
Retrieve the full structured record for a single failure mode by its ID slug (e.g. 'citation-hallucination', 'sycophancy').
Input Schema
{
"type": "object",
"properties": {
"id": {
"type": "string",
"minLength": 1,
"description": "The failure mode ID slug, e.g. 'citation-hallucination'"
}
},
"required": [
"id"
],
"$schema": "http://json-schema.org/draft-07/schema#"
}🟢list_categories
List all taxonomy categories with their IDs, names, descriptions, and mode counts.
Input Schema
{
"type": "object",
"properties": {},
"$schema": "http://json-schema.org/draft-07/schema#"
}🟢list_modes(category)
List failure modes, optionally filtered to a single category by category ID.
Input Schema
{
"type": "object",
"properties": {
"category": {
"description": "Optional category ID to filter by, e.g. 'factuality'. Omit to list all modes.",
"type": "string"
}
},
"$schema": "http://json-schema.org/draft-07/schema#"
}Community
Evidence