phionyx-mcp-server
Server Configuration
Describes the environment variables required to run the server.
| Name | Required | Description | Default |
|---|---|---|---|
| PHIONYX_TRACE_ID | No | Optional trace ID for the session. If not set, read from file or generated. | |
| PHIONYX_MCP_AUDIT_ROOT | No | Root directory for audit log storage. Default: ~/.phionyx/mcp_audit/ | |
| PHIONYX_ACTIVE_TRACE_FILE | No | Path to file containing active trace ID. Default: ~/.phionyx/active_trace |
Capabilities
Features and capabilities supported by this server
| Capability | Details |
|---|---|
| tools | {
"listChanged": false
} |
| prompts | {
"listChanged": false
} |
| resources | {
"subscribe": false,
"listChanged": false
} |
| experimental | {} |
Tools
Functions exposed to the LLM to take actions
| Name | Description |
|---|---|
| verify_tool_descriptorA | Capability 1 + 2: hash an MCP tool descriptor (Q3 semantics — full descriptor INCLUDING protocolVersion) and compare against the user-approved baseline. Returns the current hash and a change_detected flag. Hosts SHOULD call this before forwarding a tool call to detect post-approval descriptor drift (tool poisoning / rug pull defense per arXiv:2512.06556). |
| record_tool_callA | Capability 4 + 7: record a tool call (input + output hashes) as a signed RGE v0.2 envelope with the mcp_tool_audit block populated. Appends to the trace's audit chain and returns the new envelope's integrity hash. The envelope is persisted under ~/.phionyx/mcp_audit//.json by default (configurable via PHIONYX_MCP_AUDIT_ROOT). |
| verify_chain_integrityB | Capability 8: walk the persisted envelope chain for |
| query_audit_historyA | Read the audit chain for |
| record_user_approvalB | Capability 5 (stub in v0.1.0-dev): capture user approval state for a tool. Full implementation lands when the host-side UX surface is defined; current returns a structured 'not_implemented' marker that callers can detect. |
| flag_anomalyC | Capability 6 (stub in v0.1.0-dev): forward an anomaly observation from the host into the audit envelope's runtime_anomaly_flag field. Will pull live scores from phionyx_core.pipeline.blocks.behavioral_drift_detection in v0.5. |
| audit_record_decisionA | Catch-all decision logger — append a runtime decision (release/block/defer/redact) to the audit chain without populating mcp_tool_audit. Useful for non-MCP policy events the host wants to record alongside MCP calls. |
Prompts
Interactive templates invoked by user choice
| Name | Description |
|---|---|
No prompts | |
Resources
Contextual data attached and managed by the client
| Name | Description |
|---|---|
No resources | |
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