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PHION Agent Trust Infrastructure

systems-phion-evidence-engine declares 135 capabilities across 135 tools, with 3 critical issues.

100/100 exposureHigh exposure

Manifest recorded 2026-10-21 from tools/list on https://phion.systems/mcp, published in the official MCP registry as systems.phion/evidence-engine 1.57.0. The date changes only when the manifest does. Not verified by a maintainer.

Issues

These describe what this server's manifest declares. A product can provide controls that MCP has no way to express — token revocation, an admin console, audit logs — and this page cannot see them. The absence of a declaration is not evidence that a control is absent.

critical · no-revocation · All 135 tools

135 of 135 tools declare no way for the customer to switch them off once granted. This applies to every tool because MCP has no field in which to declare a revocation mechanism; the product may provide one outside MCP that a manifest cannot show.

critical · irreversible-uncapped · 10 of 135 tools

10 tools are classified as irreversible and declare no limit.

critical · uncapped-spend · 8 of 135 tools

8 tools are classified as moving money and declare no dollar limit. A cap on the number of payments does not bound their amount.

high · no-expiry · All 135 tools

135 of 135 tools declare no expiry. This applies to every tool because MCP has no field in which to declare an expiry; the product may provide one outside MCP that a manifest cannot show.

high · no-audit-trail · All 135 tools

135 of 135 tools declare no record of their actions that the customer can read. This applies to every tool because MCP has no field in which to declare an audit requirement; the product may provide one outside MCP that a manifest cannot show.

high · uncapped-write · 37 of 135 tools

37 tools can modify data and declare no limit.

low · uncapped-read · 88 of 135 tools

88 tools can read data and declare no limit.

Declared capabilities

How each tool was read. declared means the server's own annotation said so — self-reported and unverified. inferred is from the tool's name. assumed means nothing indicated either way.

Tool	Read as	Basis
`phion_discover`	`read`	declared
`phion_search_services`	`read`	declared
`phion_get_service`	`read`	declared
`phion_preflight`	`read`	declared
`phion_resolve`	`read`	declared
`phion_execute`	`write`	assumed
`index_feed`	`read`	declared
`preflight`	`write`	assumed
`try_service`	`read`	inferred
`schema_normalize_free`	`write`	assumed
`payment_diagnose`	`pay`	inferred
`payment_capability_preflight`	`pay`	inferred
`verify`	`read`	declared
`attest`	`write`	assumed
`payment_preflight`	`pay`	inferred
`fetch_evidence`	`read`	declared
`mandate_reserve`	`write`	assumed
`inspect_agent`	`read`	declared
`journey_verify`	`read`	declared
`transaction_assurance`	`read`	declared
`transaction_recovery`	`read`	declared
`schema_normalize`	`read`	declared
`agent_reputation_evidence`	`write`	assumed
`counterparty_risk_preflight`	`write`	assumed
`tool_output_firewall`	`write`	assumed
`delegation_scope_guard`	`write`	assumed
`memory_write_guard`	`write`	inferred
`mcp_manifest_firewall`	`write`	assumed
`tool_call_policy_guard`	`write`	assumed
`data_egress_preflight`	`write`	assumed
`agent_budget_guard`	`write`	assumed
`idempotency_replay_guard`	`read`	inferred
`human_approval_policy`	`write`	assumed
`secret_redaction_preflight`	`read`	inferred
`oauth_token_audience_guard`	`read`	inferred
`redirect_callback_validator`	`read`	inferred
`tool_capability_drift_monitor`	`read`	inferred
`mcp_server_identity_evidence`	`write`	assumed
`agent_task_handoff_receipt`	`write`	assumed
`context_provenance_labeler`	`write`	assumed
`signed_result_comparator`	`read`	inferred
`service_sla_attestation`	`write`	assumed
`payment_route_selector`	`pay`	inferred
`x402_quote_comparator`	`read`	declared
`payment_receipt_reconciler`	`pay`	inferred
`duplicate_charge_detector`	`pay`	inferred
`subscription_spend_guard`	`read`	declared
`webhook_verifier`	`read`	declared
`delivery_evidence`	`read`	declared
`inter_agent_policy_evaluator`	`read`	declared
`concurrency_guard`	`read`	declared
`resource_cycle_guard`	`read`	declared
`abandoned_tool_detector`	`read`	declared
`manifest_version_diff`	`write`	assumed
`dependency_provenance_assessment`	`delete`	inferred
`conflict_resolution`	`write`	assumed
`data_freshness_certificate`	`write`	assumed
`domain_ownership_evidence`	`write`	assumed
`purpose_bound_consent`	`delete`	inferred
`retention_deletion_receipt`	`write`	inferred
`interrupted_task_recovery`	`write`	assumed
`portable_observability_audit`	`read`	inferred
`rwa_asset_due_diligence`	`read`	declared
`rwa_compliance`	`read`	declared
`rwa_nav_reserve`	`read`	inferred
`rwa_transaction_assurance`	`read`	inferred
`rwa_corporate_actions`	`read`	inferred
`rwa_sanctions_screening_evidence`	`write`	assumed
`verified_web_extract`	`write`	assumed
`entity_enrichment_evidence`	`write`	assumed
`social_source_evidence`	`write`	assumed
`market_data_snapshot`	`write`	assumed
`onchain_evidence`	`write`	assumed
`verified_news_monitor`	`read`	inferred
`multi_source_fact_bundle`	`write`	assumed
`document_to_verified_json`	`write`	assumed
`source_backed_search`	`read`	inferred
`live_data_freshness`	`write`	assumed
`person_enrichment_evidence`	`write`	assumed
`company_enrichment_evidence`	`write`	assumed
`contact_enrichment_evidence`	`write`	assumed
`mcp_2026_compatibility_gateway`	`read`	declared
`durable_agent_task`	`read`	declared
`task_checkpoint_evidence`	`read`	declared
`task_cancel_assurance`	`read`	declared
`agent_approval_relay`	`read`	declared
`capability_negotiation_preflight`	`read`	declared
`mcp_catalog_cache_guard`	`read`	declared
`oauth_issuer_binding_evidence`	`read`	declared
`mcp_a2a_task_bridge`	`read`	declared
`quote_freshness_guard`	`read`	declared
`delegated_credential_guard`	`read`	declared
`agent_session_continuity`	`read`	declared
`task_lease_guard`	`read`	declared
`tool_result_schema_validator`	`read`	declared
`agent_memory_provenance`	`read`	declared
`payment_delivery_atomicity`	`pay`	inferred
`service_failover_selector`	`read`	declared
`agent_rate_limit_negotiator`	`read`	declared
`execution_cost_estimator`	`read`	declared
`cross_agent_receipt_bundle`	`read`	declared
`capability_verification`	`read`	declared
`capability_benchmark`	`read`	declared
`sybil_reputation_guard`	`read`	declared
`agent_behavior_fingerprint`	`read`	declared
`trust_anomaly_detector`	`read`	declared
`economic_loop_detector`	`read`	declared
`provider_quality_predictor`	`read`	declared
`transaction_risk_score`	`read`	declared
`payment_optimizer`	`pay`	inferred
`x402_v2_router`	`read`	declared
`erc8004_identity_evidence`	`read`	declared
`erc8004_reputation_intelligence`	`read`	declared
`delegated_spend_policy`	`read`	declared
`ap2_mandate_bridge`	`read`	declared
`a2a_transaction_bridge`	`read`	declared
`mcp_transaction_gateway`	`read`	declared
`proof_of_service`	`read`	declared
`automated_dispute_bundle`	`read`	declared
`transaction_recovery_v2`	`read`	declared
`reputation_update_receipt`	`read`	declared
`agent_economic_graph`	`read`	declared
`market_demand_predictor`	`read`	declared
`service_gap_detector`	`read`	declared
`price_discovery_engine`	`read`	declared
`sla_risk_predictor`	`read`	declared
`dynamic_service_pricing`	`read`	declared
`autonomous_procurement`	`read`	declared
`multi_agent_escrow`	`read`	declared
`cross_protocol_receipt`	`read`	declared
`phion_inference`	`read`	declared
`phion_search`	`read`	declared
`phion_enrich_basic`	`read`	declared
`phion_enrich`	`read`	declared
`phion_intelligence`	`read`	declared

Record history

Earlier records for this server. A correction is added here, never written over the record it corrects.

Recorded	Exposure	Source
2026-10-11	100	tools/list on https://phion.systems/mcp, published in the official MCP registry as systems.phion/evidence-engine 1.57.0

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