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halvrenofviryel

phionyx-mcp-server

Server Configuration

Describes the environment variables required to run the server.

NameRequiredDescriptionDefault
PHIONYX_TRACE_IDNoOptional trace ID for the session. If not set, read from file or generated.
PHIONYX_MCP_AUDIT_ROOTNoRoot directory for audit log storage. Default: ~/.phionyx/mcp_audit/
PHIONYX_ACTIVE_TRACE_FILENoPath to file containing active trace ID. Default: ~/.phionyx/active_trace

Capabilities

Features and capabilities supported by this server

CapabilityDetails
tools
{
  "listChanged": false
}
prompts
{
  "listChanged": false
}
resources
{
  "subscribe": false,
  "listChanged": false
}
experimental
{}

Tools

Functions exposed to the LLM to take actions

NameDescription
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 trace_id and verify every link. Refuses mixed-schema chains. Returns {valid, checked, broken_at, reason}.

query_audit_historyA

Read the audit chain for trace_id as a list of envelopes (most-recent first by default). Companion to verify_chain_integrity for replay and post-incident review.

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

NameDescription

No prompts

Resources

Contextual data attached and managed by the client

NameDescription

No resources

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