Requirements

Intention Establishment		status: valid security: YES safety: ASIL_B
reqtype: Functional satisfies: stkh_req__overall_goals__enable_cooperation
The platform shall provide a mechanism to establish an unambiguous, self-contained, and verifiable user intention, supporting various input modalities including natural language, deterministic UI interactions, and rule-based triggers.
feat_req__vacp__intention_establishment		Feature Requirement

Collaborative Planning		status: valid security: YES safety: ASIL_B
reqtype: Functional satisfies: stkh_req__overall_goals__enable_cooperation
The Vehicle Coordination Agent (VCA) shall create a fulfillment plan for an established intention, defining the sequence and assignment of actions across collaborating agents, including fallback strategies and contingency handling. The platform shall support both pre-defined deterministic plans and dynamically generated plans.
feat_req__vacp__collaborative_planning		Feature Requirement

Capability Discovery		status: valid security: YES safety: ASIL_B
reqtype: Functional satisfies: stkh_req__overall_goals__enable_cooperation
The platform shall provide a transport-agnostic mechanism for the VCA to discover capabilities offered by vehicle on-board and infrastructure-based agents, supporting broadcast, registry-based, and direct query discovery patterns.
feat_req__vacp__capability_discovery		Feature Requirement

Capability Exchange and Evaluation		status: valid security: YES safety: ASIL_B
reqtype: Functional satisfies: stkh_req__overall_goals__enable_cooperation
The platform shall allow agents to respond to capability requests with offers describing functional and non-functional attributes, and shall enable the VCA to evaluate offers based on availability, trustworthiness, and compatibility with the fulfillment plan.
feat_req__vacp__capability_exchange		Feature Requirement

Plan Execution and Monitoring		status: valid security: YES safety: ASIL_B
reqtype: Functional satisfies: stkh_req__overall_goals__enable_cooperation
The VCA shall coordinate execution of the fulfillment plan across the assigned agents, monitor execution progress, detect faults or deviations, and trigger contingency plans as required.
feat_req__vacp__plan_execution		Feature Requirement

Deterministic Execution		status: valid security: NO safety: ASIL_B
reqtype: Non-Functional satisfies: stkh_req__ai_platform__runtime_determinism
Fulfillment plans designated as safety-relevant shall be executable in a deterministic and reproducible manner to support safety analysis.
feat_req__vacp__deterministic_execution		Feature Requirement

Human-in-the-Loop Approval		status: valid security: NO safety: ASIL_B
reqtype: Functional satisfies: stkh_req__dependability__safe_state
The protocol shall provide approval and intervention checkpoints that require explicit human confirmation for safety-critical actions, and shall allow humans to override or abort an in-progress fulfillment plan.
feat_req__vacp__human_in_the_loop		Feature Requirement

Fault Handling		status: valid security: NO safety: ASIL_B
reqtype: Functional satisfies: stkh_req__dependability__error_reaction
The protocol shall handle agent failures, communication losses, and plan deviations gracefully without compromising the safety of the overall system.
feat_req__vacp__fault_handling		Feature Requirement

Agent Authentication		status: valid security: YES safety: ASIL_B
reqtype: Functional satisfies: stkh_req__dependability__security_features
All agents participating in a VACP collaboration session shall be authenticated prior to participation, using credentials that can be verified and revoked at runtime.
feat_req__vacp__agent_authentication		Feature Requirement

Message Integrity		status: valid security: YES safety: ASIL_B
reqtype: Functional satisfies: stkh_req__communication__secure
All VACP protocol messages shall be integrity-protected to prevent tampering and replay attacks.
feat_req__vacp__message_integrity		Feature Requirement

Trust Management		status: valid security: YES safety: ASIL_B
reqtype: Functional satisfies: stkh_req__dependability__security_features
The protocol shall support explicit establishment, continuous validation, revocation, and re-establishment of trust relationships between collaborating agents at runtime, including the detection and isolation of compromised agents.
feat_req__vacp__trust_management		Feature Requirement

Contextual Awareness		status: valid security: YES safety: ASIL_B
reqtype: Functional satisfies: stkh_req__overall_goals__enable_cooperation
Agents shall maintain and share contextual information relevant to the collaboration, such as environmental conditions, vehicle state, and infrastructure status. Shared context shall be timestamped and validated to ensure consistency across collaborating agents.
feat_req__vacp__contextual_awareness		Feature Requirement

Transport-Agnostic Communication		status: valid security: NO safety: ASIL_B
reqtype: Non-Functional satisfies: stkh_req__communication__extensible_external
The protocol shall be transport-agnostic and capable of operating over diverse underlying communication channels without imposing constraints on the underlying infrastructure.
feat_req__vacp__transport_agnostic		Feature Requirement

Extensibility		status: valid security: NO safety: ASIL_B
reqtype: Non-Functional satisfies: stkh_req__communication__extensible_external
The protocol shall be extensible to accommodate new agent capabilities, message types, and collaboration patterns without breaking backward compatibility with existing agents.
feat_req__vacp__extensibility		Feature Requirement