---
title: "SPIFFE / WIMSE · Highflame Glossary"
description: "Open standards for verifiable workload identity. Highflame extends them with agent-shaped claims for delegation, trust, and attribution."
doc_version: "0.1.0"
last_updated: "2026-07-25T03:14:58.002Z"
canonical: "https://www.highflame.com/glossary/spiffe-wimse"
---

[Home](/index.md)·[Glossary](/glossary.md)·SPIFFE / WIMSE

# SPIFFE / WIMSE

Open standards for verifiable workload identity. Highflame extends them with agent-shaped claims for delegation, trust, and attribution.

Learn more: [Agent Identity](/learn/ai-agent-identity.md)

Part of [the Agent Control Fabric](/platform.md): Highflame's identity, policy, and enforcement substrate for AI agents.

[Book a demo](/contact.md) [All terms](/glossary.md)

## Keep exploring the glossary.

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### Tool poisoning

Hiding malicious instructions in an MCP server or tool description so an agent executes them when it loads or calls the tool. Invisible to static config; caught by scanning tools before load and enforcing at the call.

Read →](/glossary/tool-poisoning.md)[

### Trust tier

A provenance-based level on an agent's identity (first-party/attested, verified third-party, or unverified) that gates what the agent is eligible for and tightens its policy. It is a verified input to every decision, never a bypass: each action is still authorized per request, so there is no implicit trust.

Read →](/glossary/trust-tier.md)[

### ZeroID

Highflame's open-source agent identity core (Apache 2.0), built on OAuth 2.1, SPIFFE/WIMSE, and RFC 8693: the inspectable foundation beneath Highflame Identity.

Read →](/glossary/zeroid.md)[

### A2A (Agent-to-Agent)

Communication where one agent delegates work to, or calls, another agent. Each hop has to carry identity and narrow scope. Or authority leaks down the chain.

Read →](/glossary/a2a.md)[

### Adaptive guardrails

Runtime controls that tighten themselves as new signals and attack patterns emerge, instead of relying on static rules someone has to keep updating.

Read →](/glossary/adaptive-guardrails.md)[

### Agent Control Fabric

Highflame's term for the identity, policy, and enforcement substrate that governs every agent action at every boundary it crosses: one layer, not a bundle of point tools.

Read →](/glossary/agent-control-fabric.md)

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