io.github.n0zer0d4y/mercury-spec-ops
mercury-spec-ops
Modular MCP server for dynamic prompt generation and software development analysis tools
alive probed 2026-10-19
6tools
≈ 724tokens, estimate
≈ 0.4 %of Claude's 200k window
0.5×the median server
358 msto initialize
7 msto list tools
- Run it
- npx -y @n0zer0d4y/mercury-spec-ops@0.1.2 (stdio, probed in a container with the network off)
- Host
- npmjs.com
- Reports itself as
- mercury-spec-ops 0.1.0
- Capabilities
- tools
- Instructions
- none
- Of a 1M window
- ≈ <0.1 % 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/n0zer0d4y/mercury-spec-ops
- Registry
- active, updated 2025-11-14 · 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 |
|---|---|---|
| generate_prd_prompt | 217 | 30 % |
| generate_codebase_analysis_prompt | 200 | 28 % |
| generate_bug_analysis_prompt | 181 | 25 % |
| get_codebase_analysis_template | 43 | 6 % |
| get_prd_template | 42 | 6 % |
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
- The Anthropic count_tokens endpoint refused the tool schemas (invalid x-api-key). A client that validates schemas can refuse them too.