# Agent Stack Directory

> Search, inspect and compare infrastructure tools for AI agents from a checked directory.

- name: com.agentstackdirectory/agent-stack-directory
- version: 0.1.0
- connection class: R0 (autonomous)
- trust: 96/100
- quality: 89/100 (new)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/com.agentstackdirectory%2Fagent-stack-directory
- tools: https://api.protogrid.dev/v1/servers/com.agentstackdirectory%2Fagent-stack-directory/tools

**An agent can connect right now, no human step.** Remote endpoint, no authentication, reachable on the last probe.

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "agent-stack-directory": {
      "type": "http",
      "url": "https://agentstackdirectory.com/mcp"
    }
  }
}
```


## Trust

- hygiene: 100
- liveness: 100
- freshness: 100
- provenance: 85
- drivers: +repository +dns-namespace +website +reachable +uptime-100% +updated-1d-ago
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 89/100 (new)

### protocol: 75 (weight 25)

- warn `protocol.modern`: newest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
- n/a `protocol.stateless`: only applies to 2026-07-28 servers
- pass `protocol.transport`: streamable HTTP
- n/a `protocol.list_ttl`: only applies to 2026-07-28 servers

### authorization: n/a (weight 15)

- n/a `auth.prm`, `auth.as_metadata`, `auth.cimd`: no remote uses OAuth
- n/a `auth.secret_in_url`: no templated URL

### tool hygiene: 100 (weight 30)

- pass `tools.descriptions`: every tool has a description
- pass `tools.description_length`: descriptions are concise
- pass `tools.schemas`: every tool has an object input schema
- pass `tools.annotations`: 4 of 4 tools declare readOnlyHint or destructiveHint
- pass `tools.directory_hints`: every tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHint
- pass `tools.token_cost`: about 540 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump

### stability: n/a (weight 15)

- n/a `stability.changes`, `stability.rug_pull`: tool history recorded for 0 of the 7 days needed

### dependencies: n/a (weight 15)

- n/a `deps.known_vulns`, `deps.mcp_sdk_version`, `deps.resolvable`: no npm or PyPI package

- tools: 4, about 540 tokens to load them all
- tool set hash: 6dcbc4f451d1b55c707d3b8423006d4e
- badge: [![protogrid quality](https://protogrid.dev/badge/com.agentstackdirectory/agent-stack-directory.svg)](https://protogrid.dev/servers/com.agentstackdirectory/agent-stack-directory)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

_No tool definition changes recorded._

## Remotes

- https://agentstackdirectory.com/mcp (streamable-http, auth none, reachable true, uptime30d 1)

## Packages

_none_

## Tools (4)

- `compare`: Compare 2 to 4 tools side by side by slug or name. Returns a table, notable differences and the head-to-head page when one exists.
- `get_tool`: Get the full listing for one tool by slug or name: summary, official site, open-source flag, last link check, and the alternatives in its category.
- `list_categories`: List every category (layer of the agent stack) with its key, description and tool counts.
- `search_tools`: Search Agent Stack Directory for AI agent infrastructure tools by keyword, with optional category and open-source filters. Omit query to list every tool in a category.