io.github.blackwell-systems/agent-lsp
agent-lsp
Orchestrates language servers into 65 code-intelligence tools across 32 languages, token-optimized.
alive probed 2026-10-19
65tools
≈ 11ktokens, estimate
≈ 5.7 %of Claude's 200k window
8.0×the median server
98 msto initialize
10 msto list tools
- Run it
- npx -y @blackwell-systems/agent-lsp@0.23.0 (stdio, probed in a container with the network off)
- Host
- npmjs.com
- Reports itself as
- agent-lsp 0.23.0
- Capabilities
- logging, prompts, resources, tools
- Instructions
- 1 854 characters
- Of a 1M window
- ≈ 1.1 % of a 1M context window, estimate
- Claude count
- The count_tokens endpoint refused the tool schemas: invalid x-api-key. The estimate stands in.
- Repository
- https://github.com/blackwell-systems/agent-lsp
- Registry
- active, updated 2026-10-08 · registry entry
- Reachable
- 1 of the last 1 probe
Most expensive tools
Estimates with the o200k_base tokenizer.
| Tool | o200k estimate | Share of this server |
|---|---|---|
| start_lsp | 392 | 3 % |
| preview_edit | 358 | 3 % |
| get_inlay_hints | 296 | 3 % |
| rename_symbol | 294 | 3 % |
| find_callers | 255 | 2 % |
Badge for the README
The result of the latest probe, the tool count and the token cost. The feed has an entry for every probe that changed them.
A mail when this server changes
Stops answering, comes back, tool set or cost changes. One confirmation mail first, a stop link in every mail.
For the publisher
- This server is in the heaviest 10 % of the registry. Shorter descriptions, fewer optional parameters and fewer tools cut the cost. The command npx mcpcost --url <endpoint> --tools 50 lists every tool with its cost.
- The Anthropic count_tokens endpoint refused the tool schemas (invalid x-api-key). A client that validates schemas can refuse them too.