io.github.LuminariSoftwares/context-guardian
Context Guardian
Is the Context Guardian MCP server down? No. It answered initialize and tools/list in the probe of 2026-11-12.
40 turns: 1,130,722 tokens upstream -> 161,141. A fail-open compaction proxy for local models.
alive probed 2026-11-15 · unchanged since 2026-11-12
- Run it
- uvx context-guardian@0.16.0 (stdio, probed in a container with the network off)
- Host
- pypi.org
- Reports itself as
- context-guardian 0.16.0
- Capabilities
- tools
- Instructions
- none
- Of a 1M window
- 0.2 % of a 1M context window
- Count
- 1.7k tokens in Claude Opus 5.5, exact, measured 2026-11-06. With the Claude Code prefix mcp__…__ on each tool name: 1.8k. The o200k_base estimate is 1.0k. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/LuminariSoftwares/context-guardian
- Registry
- active, updated 2026-11-12 · registry entry
- Changes
- 3 recorded, reachable in 3 of them. A row is added when the result, the tool count or the cost changes.
Most expensive tools
The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.66×.
| Tool | ≈ Claude tokens | o200k estimate | Share of this server |
|---|---|---|---|
| read_span | 379 | 229 | 22 % |
| search_spans | 339 | 205 | 20 % |
| list_digests | 321 | 194 | 19 % |
| list_spans | 257 | 155 | 15 % |
| get_seal_status | 179 | 108 | 10 % |
Compare this server with others.
More servers
Other registry entries on pypi.org, the ones next to this name; all of them.
- USB Servo Controller io.github.Lukasz-Juranek/usb-servo-controller · alive
- OMX for Hyperliquid io.github.Lumen-Founder/omx · needs env
- OMX for Hyperliquid io.github.Lumen-Founder/omx-hyperliquid-trading · needs env
- Code Guardian io.github.LuminariSoftwares/code-guardian · alive
- Stack Guardian io.github.LuminariSoftwares/stack-guardian · needs args
- Tool Guardian io.github.LuminariSoftwares/tool-guardian · alive
- io.github.Lyellr88/marm-mcp-server · alive
- armguard-mcp io.github.Lynn-hh/armguard-mcp · alive
Servers that mention guardian.
- Panel Review ai.truverif/panel-review · needs auth
- Guardian Engine dev.kaimeilabs/guardian-engine · alive
- Tool-Guardian-Proxy io.github.Evozim/tool-guardian · not found
- Agent Tools io.github.WingedGuardian/agent-tools · no DNS
- Apiiro Guardian Agent io.github.apiiro/guardian-agent · needs auth
- io.github.dth0108/bies-guardian · not found
- HallucC — Hallucination & Safety Guardian io.github.fredyee/hallucc · alive
- SiteGuardian io.github.gweber/siteguardian · alive
History
We add a row when the result changes. A server with no change keeps its last row.
| Probed | Result | Init | Tools | Claude | o200k |
|---|---|---|---|---|---|
| 2026-11-06 08:37 | alive | 1.0 s | 7 | 1.7k | 1.0k |
| 2026-10-26 07:01 | alive | 1.4 s | 6 | 1.7k | 1.0k |
| 2026-10-19 06:52 | alive | 1.6 s | 3 | 223 |
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 server answers initialize and tools/list. Nothing to fix.