io.github.marras0914/agent-toolbelt-mcp
agent-toolbelt
19 focused API tools for AI agents: contract review, prompt optimizer, context packing, and more.
alive probed 2026-10-15
20tools
6.5ktokens in Claude Opus 5.5
6.8ktokens in Claude Code
3.2 %of a 200k context window
3.6ko200k_base estimate
291 msto initialize
11 msto list tools
- Run it
- npx -y agent-toolbelt-mcp@1.0.1 (stdio, probed in a container with the network off)
- Host
- npmjs.com
- Reports itself as
- agent-toolbelt 1.0.0
- Capabilities
- prompts, resources, tools
- Instructions
- none
- Claude count
- Claude Opus 5.5, measured 2026-10-15. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/marras0914/agent-toolbelt
- Registry
- active, updated 2026-03-03 · registry entry
- Reachable
- 1 of the last 1 probe
Most expensive tools
| Tool | Tokens (o200k) | Share of this server |
|---|---|---|
| pack_context_window | 316 | 9 % |
| generate_color_palette | 234 | 6 % |
| extract_contract_clauses | 232 | 6 % |
| audit_dependencies | 214 | 6 % |
| strip_image_metadata | 212 | 6 % |
Badge and feed
[](https://mcpcost.ulehla.dev/s/io.github.marras0914/agent-toolbelt-mcp)
An entry for every probe that changed the result, the tool count or the token cost: Atom feed. Add it to a feed reader or a Slack RSS app to hear when the server stops answering or its tool set grows.