io.github.souvikdu/perfonext-build-mcp
Perfonext Build MCP
MCP server for Next.js build stats, chunk attribution, and bundle optimization advice.
alive probed 2026-10-14
11tools
2.7ktokens in Claude Opus 5.5
2.9ktokens in Claude Code
1.4 %of a 200k context window
1.5ko200k_base estimate
281 msto initialize
11 msto list tools
- Run it
- npx -y @perfonext/build-mcp@0.6.2 (stdio, probed in a container with the network off)
- Host
- npmjs.com
- Reports itself as
- perfonext-build-mcp 0.6.2
- Capabilities
- tools
- Instructions
- none
- Claude count
- Claude Opus 5.5, measured 2026-10-14. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/souvikdu/perfonext-build-mcp
- Registry
- active, updated 2026-09-04 · registry entry
- Reachable
- 1 of the last 1 probe
Most expensive tools
| Tool | Tokens (o200k) | Share of this server |
|---|---|---|
| trace_import | 160 | 11 % |
| how_to_collect_stats | 157 | 11 % |
| explain_shared_chunks | 152 | 10 % |
| explain_growth | 151 | 10 % |
| suggest_optimizations | 149 | 10 % |
Badge and feed
[](https://mcpcost.ulehla.dev/s/io.github.souvikdu/perfonext-build-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.