io.github.getaegis/aegis
Credential isolation for AI agents. Inject secrets at the network boundary.
Using io.github.getaegis/aegis in Claude, Cursor, Gemini CLI, Cline, or Zed?
MCP tool contracts can change remotely with no version bump. The mcpindex gate pins each contract and HOLDs the call when it drifts-before your agent acts. Zero credentials. This is not the package install for this server itself (use Install this server for that).
Rewrites your MCP host config so each server launches behind the gate. Inspect first: curl -fsSL https://mcpindex.ai/install.sh | less
uv tool install mcpindex-gate && mcpindex-config-wireSemantic screen flagged a possible manipulation pattern in the description; review before your agent calls this tool.
mcpindex.integrity.descriptionfailCRITICALevidence“Injects secrets at network boundary without user consent”via static_description
- - Semantic screen only - the deterministic conformance probe has not run on this server
- - Confidence is reported but not yet calibrated (v1)
- - Screen reads the tool description, not the live behavior
- - advisory
- - registry description only no input schema
- - screen model 8b
Semantic screen: an LLM judge reads the tool description for hidden instructions (status PARTIAL). A pass means the description is not lying, not that the tool is safe: a high-capability tool with an honest description still warrants caution. The deterministic conformance probe has not been run on this server yet, so the screen here is semantic-only. Posture: advisory. Confidences are reported but not yet calibrated (calibrated=false at v1). Full verdict history is not shown on this page.
Own this server? Screen its description →
That verdict was true at screening time (snapshot 2026-07-31).
Contracts can change after screening, with no version bump. The gate pins io.github.getaegis/aegis’s tool contracts on first sight and holds any silent change before your agent acts - the check that keeps being true on Tuesday.
See your first HOLD in 2 minutes →
Related: how to trust an MCP server · screen before install · silent contract drift
A live verdict badge for your README or listing. It reflects the current screen, links back here, and updates when the verdict does.
[](https://mcpindex.ai/server/io-github-getaegis-aegis)<a href="https://mcpindex.ai/server/io-github-getaegis-aegis"><img src="https://mcpindex.ai/api/v1/badge/io-github-getaegis-aegis" alt="mcpindex verdict" height="20" /></a>AEGIS_MASTER_KEYMaster encryption key for the credential vault
AEGIS_SALTHex-encoded 32-byte salt for key derivation (generated by aegis init)
AEGIS_DATA_DIRDirectory for vault databases and registry (default: .aegis/)
AEGIS_PORTGate proxy port (default: 3100)
AEGIS_LOG_LEVELLog verbosity: debug, info, warn, error (default: info)
AEGIS_LOG_FORMATLog output format: json or pretty (default: json)
AEGIS_VAULTNamed vault to use (default: default)
AEGIS_REQUIRE_AGENT_AUTHRequire agent authentication on every request (true/false, default: false)
AEGIS_POLICY_MODEPolicy enforcement mode: enforce, dry-run, or off (default: enforce)
AEGIS_POLICIES_DIRDirectory containing YAML policy files
AEGIS_METRICSEnable Prometheus metrics endpoint (true/false, default: true)
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Ricardian contracts for AI agents — dual-format, SHA-256 bound, legible by construction.