# Rules Catalog | AgentBadge > All 147 agent readiness rules across 25 categories. Understand what AgentBadge checks and why each rule matters for AI agent compatibility. 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Each rule ensures your site is discoverable, understandable, and usable by AI agents. [View as checklist](https://agentbadge.xyz/agent-readiness-checklist) Quick fix Moderate Complex CRITICAL MEDIUM LOW Severity Gap types: Documentation Semantic Capability Evidence ## Learn about agent readiness New to agent readiness? Start with these guides: [What is an AI-Ready API?](https://agentbadge.xyz/what-is-agent-readiness) [How to Make an API Agent-Ready](https://agentbadge.xyz/how-to-make-an-api-agent-ready) [Agent Readiness vs SEO](https://agentbadge.xyz/agent-readiness-vs-seo) [OpenAPI vs Agent Readiness](https://agentbadge.xyz/openapi-vs-agent-readiness) ## Discovery Can an agent find you? Weight: 20 πŸ” Discovery Can AI agents find your site and understand what it offers? 15 rules [πŸ” Robots.txt File Your site has a robots.txt file that tells crawlers and AI agents what they can access. low Quick fix Documentation](https://agentbadge.xyz/rules/AB-001) [πŸ—ΊοΈ Sitemap File Your site has a sitemap listing all important pages for agents to discover. low Quick fix Documentation](https://agentbadge.xyz/rules/AB-002) [🧭 Agent Guide Your site has a dedicated guide that tells AI agents what you offer and how to interact. high Moderate Documentation](https://agentbadge.xyz/rules/AB-003) [πŸ“„ LLMs.txt File Your site has an llms.txt file that provides a plain-text overview for large language models. medium Quick fix Documentation](https://agentbadge.xyz/rules/AB-014) [πŸ”— Link Relationships Your homepage includes link headers that connect related resources together. medium Moderate Documentation](https://agentbadge.xyz/rules/AB-061) [πŸ“š API Catalog Your site publishes a catalog of all available APIs in a standard location. medium Moderate Documentation](https://agentbadge.xyz/rules/AB-062) [🏷️ Content Signals Your robots.txt declares preferences about how AI can use your content. low Quick fix Documentation](https://agentbadge.xyz/rules/AB-066) [🌐 DNS Agent Discovery Your domain has DNS records that help agents discover your services automatically. low Moderate Documentation](https://agentbadge.xyz/rules/AB-068) [map Blog articles in AI sitemap AI sitemap includes blog/article URLs, not just static pages. medium Moderate Documentation](https://agentbadge.xyz/rules/AB-110) [clock Crawl-delay directive in robots.txt robots.txt includes a Crawl-delay directive to control crawl rate. low Quick fix Documentation](https://agentbadge.xyz/rules/AB-111) [policy LLM policy file LLM usage policy published at /.well-known/llm-policy.json. low Moderate Documentation](https://agentbadge.xyz/rules/AB-113) [coverage AI sitemap content type coverage AI sitemap covers at least 50% of the URLs in the regular sitemap. medium Moderate Documentation](https://agentbadge.xyz/rules/AB-114) [🧭 Capability list declared A capabilities list is present in agent-guide. medium Quick fix Documentation](https://agentbadge.xyz/rules/AB-158) [πŸ€– AI-Agent Discovery meta tags Your HTML head declares ai-agent-discovery and ai-agent-onboarding meta tags pointing to machine-readable entry points. high Quick fix Documentation](https://agentbadge.xyz/rules/AB-161) [πŸ“‘ Agent feeds (JSON Feed 1.1 / RSS 2.0) Your site serves structured JSON Feed 1.1 or RSS 2.0 feeds at common paths like /agents.json, /jobs.rss, or /feed.json. low Moderate Documentation](https://agentbadge.xyz/rules/AB-165) πŸ€– Machine-Readable Is your site's data structured for AI consumption? 9 rules [πŸ’² Machine-Readable Pricing Your pricing information is available in a format agents can parse automatically. medium Moderate Documentation](https://agentbadge.xyz/rules/AB-010) [⏱️ Rate Limits Declared Your site declares its rate limits in a machine-readable format. low Moderate Documentation](https://agentbadge.xyz/rules/AB-011) [⚠️ Structured Error Responses Your API returns errors in a consistent, machine-readable format. low Moderate Documentation](https://agentbadge.xyz/rules/AB-012) [πŸ› οΈ MCP Tools List Your MCP server responds to tool listing requests. high Moderate Documentation](https://agentbadge.xyz/rules/AB-020) [πŸ“ž MCP Tool Calls Your MCP server responds when agents try to call a tool. high Moderate Documentation](https://agentbadge.xyz/rules/AB-021) [πŸ“‘ MCP Streaming Support Your MCP server supports streaming connections for real-time communication. medium Complex Documentation](https://agentbadge.xyz/rules/AB-022) [card Agent Card version 1.0.0+ Agent Card JSON includes a version field >= 1.0.0. medium Quick fix Documentation](https://agentbadge.xyz/rules/AB-109) [πŸ“‹ Skill.json (JSON-LD) availability Your site serves /skill.json as JSON-LD with @context, @type, name, and url/endpoints for machine-readable agent onboarding. low Moderate Documentation](https://agentbadge.xyz/rules/AB-163) [❗ Error catalog endpoint Your site serves a JSON error catalog at /api/meta/errors or /errors.json with error codes and descriptions. low Moderate Documentation](https://agentbadge.xyz/rules/AB-164) πŸ“‹ OpenAPI Is your API specification complete and reachable? 9 rules [πŸ“‹ API Spec at Standard Location Your API specification is published at the standard location agents expect. high Quick fix Documentation](https://agentbadge.xyz/rules/AB-039) [πŸ›€οΈ API Paths Defined Your API specification lists all available paths and endpoints. medium Complex Documentation](https://agentbadge.xyz/rules/AB-040) [🌐 API Paths Reachable All endpoints defined in your API spec actually work when agents call them. medium Moderate Documentation](https://agentbadge.xyz/rules/AB-041) [πŸ” Response Matches Spec Your API responses match what your specification promises. low Moderate Documentation](https://agentbadge.xyz/rules/AB-042) [πŸ”’ API Version Identified Your API specification clearly states which version it is. low Quick fix Documentation](https://agentbadge.xyz/rules/AB-043) [🏷️ API Title Your API specification has a clear title that describes your service. low Quick fix Documentation](https://agentbadge.xyz/rules/AB-044) [πŸ›€οΈ OpenAPI Paths Reachable At least half the paths declared in your OpenAPI spec return valid responses when probed. medium Moderate Documentation](https://agentbadge.xyz/rules/AB-076) [πŸ“‹ OpenAPI Response Matches Spec Your API responses match the structure declared in your OpenAPI specification. medium Moderate Documentation](https://agentbadge.xyz/rules/AB-077) [πŸ’³ Payment Info in OpenAPI Your OpenAPI spec declares payment information for paid operations so agents know which endpoints cost money. medium Moderate Documentation](https://agentbadge.xyz/rules/AB-078) 🎯 Skills Can agents discover and use your specialized skills? 3 rules [🎯 Skill File Present Your site has a skill file that describes specialized capabilities agents can use. medium Moderate Documentation](https://agentbadge.xyz/rules/AB-026) [βœ“ Skill File Format Valid Your skill file follows the expected format with proper metadata. low Quick fix Documentation](https://agentbadge.xyz/rules/AB-027) [πŸ“š Skills Index Your site has an index listing all available skills in one place. medium Moderate Documentation](https://agentbadge.xyz/rules/AB-065) πŸ“œ Agents.txt Do you have instructions specifically for AI agents? 1 rule [πŸ“œ Agents.txt File Your site has an agents.txt file with instructions specifically for AI agents. medium Moderate Documentation](https://agentbadge.xyz/rules/AB-048) 🌐 WebMCP Can browsers interact with your agent via MCP? 7 rules [🌐 WebMCP Manifest Your site has a WebMCP manifest that enables browser-based agent interactions. medium Complex Documentation](https://agentbadge.xyz/rules/AB-050) [πŸ“ WebMCP Form Annotations Your forms are annotated so WebMCP agents can fill them automatically. low Moderate Documentation](https://agentbadge.xyz/rules/AB-051) [πŸ–₯️ WebMCP Browser Tools Your site exposes browser-side tools that agents can call through WebMCP. medium Complex Documentation](https://agentbadge.xyz/rules/AB-069) [🌐 MCP namespace-based tool isolation Your MCP server exposes tools with namespace prefixes for multi-registry support. medium Moderate Documentation](https://agentbadge.xyz/rules/AB-115) [🌐 Well-known MCP descriptor Your site publishes an MCP server descriptor at /.well-known/mcp.json. medium Quick fix Documentation](https://agentbadge.xyz/rules/AB-116) [🌐 MCP tools and REST endpoints parity At least 50% of your REST API endpoints have corresponding MCP tools. medium Complex Documentation](https://agentbadge.xyz/rules/AB-102) [🌐 check_compliance MCP tool available Your MCP server exposes a 'check_compliance' tool for self-assessment. low Moderate Documentation](https://agentbadge.xyz/rules/AB-103) πŸ”„ Content Negotiation Does your site serve the right format to AI agents? 7 rules [πŸ€– Agent User-Agent Format Your site serves appropriate content when an AI agent visits. medium Moderate Documentation](https://agentbadge.xyz/rules/AB-015) [πŸ“Š JSON Format Support Your site returns JSON when an agent requests it. medium Moderate Documentation](https://agentbadge.xyz/rules/AB-016) [πŸ“ Plain Text Format Support Your site returns plain text when an agent requests it. medium Quick fix Documentation](https://agentbadge.xyz/rules/AB-017) [⬇️ Markdown Format Support Your site returns Markdown when an agent requests it. medium Quick fix Documentation](https://agentbadge.xyz/rules/AB-018) [🎯 Preferred Format Selection Your site respects format preferences when agents specify what they want. low Moderate Documentation](https://agentbadge.xyz/rules/AB-019) [πŸ”€ Vary Header Your site tells caches that content varies based on the requested format. low Quick fix Documentation](https://agentbadge.xyz/rules/AB-028) [πŸ“ No Redirect on Negotiation Your site serves the requested format directly without redirecting. low Quick fix Documentation](https://agentbadge.xyz/rules/AB-029) πŸ”Ž SEO / AEO Is your content optimized for search engines and AI answer engines? 12 rules [πŸ”Ž Blog Article OpenGraph Type Blog and article pages declare og:type=article in their OpenGraph meta tags. medium Quick fix Documentation](https://agentbadge.xyz/rules/AB-104) [πŸ”Ž Article Author and Date Meta Tags Article pages include article:author, article:published_time, and article:modified_time meta tags. medium Quick fix Documentation](https://agentbadge.xyz/rules/AB-105) [πŸ”Ž AEO Short-Answer Summary Block Article pages include a short-answer summary block (2-3 sentences) at the top for AI answer engines. low Moderate Documentation](https://agentbadge.xyz/rules/AB-106) [πŸ”Ž Semantic Definition Lists in Guides Guide pages use definition lists for term/definition pairs instead of plain paragraphs. low Moderate Documentation](https://agentbadge.xyz/rules/AB-107) [πŸ”Ž OG Image Alt Text Brand Consistency og:image:alt text is present and includes the site's brand name for consistent social sharing. low Quick fix Documentation](https://agentbadge.xyz/rules/AB-108) [πŸ“ Service page content depth Service pages have at least 300 words of meaningful content. low Moderate Documentation](https://agentbadge.xyz/rules/AB-100) [πŸ“ Breadcrumb navigation on service pages Service pages have breadcrumb navigation (JSON-LD BreadcrumbList or HTML .breadcrumb class). low Quick fix Documentation](https://agentbadge.xyz/rules/AB-101) [❓ Answer-first extractability Question-shaped headings are followed by self-contained answer blocks AI systems can quote. low Moderate Documentation](https://agentbadge.xyz/rules/AB-183) [πŸ“Š Evidence density for citability Pages contain citable evidence: sourced numbers, dated claims, fact tables, attributed quotations. low Moderate Documentation](https://agentbadge.xyz/rules/AB-184) [🏷️ Entity clarity and canonical naming The page states what the entity is in one canonical line, names it consistently, and links About/schema signals. low Quick fix Documentation](https://agentbadge.xyz/rules/AB-185) [πŸ–₯️ Server-rendered primary content Primary content is present in the initial HTML without executing JavaScript. low Documentation](https://agentbadge.xyz/rules/AB-186) [🚫 Anti-citation disqualifiers Content is free of overlays covering it, funnel-grade CTA density, and missing author/date on articles. medium Moderate Documentation](https://agentbadge.xyz/rules/AB-187) ## Understandability Can an agent understand you? Weight: 25 πŸ“– Documentation Is your API documented in formats that AI agents can read? 16 rules [πŸ“‹ API Specification Your site has a machine-readable API specification that agents can parse. high Complex Documentation](https://agentbadge.xyz/rules/AB-004) [πŸ§ͺ Agent Guide Schema Validation Your agent guide follows the expected format with all required fields. high Moderate Documentation](https://agentbadge.xyz/rules/AB-005) [πŸ”Œ MCP Server Descriptor Your site advertises its MCP server so agents can discover and connect to it. medium Moderate Documentation](https://agentbadge.xyz/rules/AB-006) [πŸ“‘ Detailed LLMs File Your site has an extended llms-full.txt with comprehensive information for AI models. medium Moderate Documentation](https://agentbadge.xyz/rules/AB-024) [πŸ“Œ LLMs File Linked from HTML Your homepage links to your llms.txt file so AI models can find it. low Quick fix Documentation](https://agentbadge.xyz/rules/AB-025) [πŸ“‘ RSS or Atom Feed Your site has an RSS or Atom feed for agents to subscribe to updates. low Moderate Documentation](https://agentbadge.xyz/rules/AB-049) [πŸ–ΌοΈ Social Preview Image Your site has a social preview image that appears when shared on social media or in AI responses. low Quick fix Documentation](https://agentbadge.xyz/rules/AB-052) [⭐ SVG Favicon Your site has a scalable SVG favicon that looks crisp at any size. low Quick fix Documentation](https://agentbadge.xyz/rules/AB-053) [πŸ”— Canonical URL Your pages have canonical URLs that tell agents which version is the official one. low Quick fix Documentation](https://agentbadge.xyz/rules/AB-054) [πŸ“° RSS Feed Linked from HTML Your homepage links to your RSS feed so agents can discover it. low Quick fix Documentation](https://agentbadge.xyz/rules/AB-055) [πŸ“ Agent Registration Instructions Your site has instructions telling agents how to register and authenticate. low Moderate Documentation](https://agentbadge.xyz/rules/AB-064) [πŸ“– Auth.md documents agent auth flow Your auth.md file documents agent authentication with session-scoped tokens. low Quick fix Documentation](https://agentbadge.xyz/rules/AB-140) [πŸ“– Auth.md documents credential vault pattern Your auth.md mentions credential vault, scoped tokens, or session rotation (optional). low Quick fix Documentation](https://agentbadge.xyz/rules/AB-144) [πŸ“‹ Parameter semantics Parameters have descriptions with constraints (min, max, required). medium Quick fix Documentation](https://agentbadge.xyz/rules/AB-147) [πŸ’‘ Request/response examples OpenAPI operations include example requests and responses. medium Quick fix Documentation](https://agentbadge.xyz/rules/AB-148) [πŸ†˜ Support path declared A support contact or help URL is declared in agent-guide. low Quick fix Documentation](https://agentbadge.xyz/rules/AB-160) ⚑ Actionability Can agents actually call your API with the right authentication? 11 rules [πŸ”„ Guide and API Consistency Your agent guide and your API specification describe the same endpoints. high Moderate Semantic](https://agentbadge.xyz/rules/AB-007) [πŸ”‘ Authentication Declared Your site declares its authentication method in a machine-readable way. medium Moderate Semantic](https://agentbadge.xyz/rules/AB-008) [🧩 Capability Coverage Your agent guide covers all the capabilities your service offers. medium Moderate Semantic](https://agentbadge.xyz/rules/AB-009) [🀝 A2A Agent Card Published Your agent publishes a /.well-known/agent-card.json file so other agents can discover its capabilities via the A2A protocol. medium Quick fix Semantic](https://agentbadge.xyz/rules/AB-074) [βœ… A2A Agent Card Verified Your agent-card.json includes all required fields: name, description, url, and capabilities. medium Quick fix Semantic](https://agentbadge.xyz/rules/AB-075) [πŸ”Œ MCP Server Name Present Your MCP server's initialize response includes serverInfo.name, allowing agents to identify the server. medium Quick fix Semantic](https://agentbadge.xyz/rules/AB-085) [πŸ” MCP Auth Discovery Resolves If your MCP descriptor declares authentication, the auth URL is reachable and returns valid metadata. medium Moderate Semantic](https://agentbadge.xyz/rules/AB-086) [πŸ“ Operation descriptions Every OpenAPI operation has a description or summary. medium Quick fix Semantic](https://agentbadge.xyz/rules/AB-146) [βš–οΈ Business constraints documented Business rules (refund windows, cancellation policies) are documented. low Quick fix Semantic](https://agentbadge.xyz/rules/AB-159) [πŸ’“ Heartbeat.md availability Your site serves /heartbeat.md with YAML frontmatter, providing a periodic check-in routine for AI agents. low Quick fix Semantic](https://agentbadge.xyz/rules/AB-162) [➑️ next_call pattern in API responses Your OpenAPI spec includes a next_call field in response schemas with method, path, and why to guide agents to the next request. low Moderate Semantic](https://agentbadge.xyz/rules/AB-166) β™Ώ Accessibility Is your site accessible to all users, including those using assistive technology? 2 rules [β™Ώ Image alt text coverage All images on your page have alt attributes (empty alt is valid for decorative images). medium Moderate Semantic](https://agentbadge.xyz/rules/AB-117) [β™Ώ Lazy loading on below-fold images Images below the fold use loading="lazy" for improved page load performance. low Quick fix Semantic](https://agentbadge.xyz/rules/AB-118) πŸ’² Pricing Is pricing information available in machine-readable formats for automated clients? 1 rule [πŸ’² Pricing discoverability Pricing information is discoverable in agent-guide or llms.txt. high Quick fix Semantic](https://agentbadge.xyz/rules/AB-150) ⏱️ Rate Limits Are rate limits and over-limit behavior declared machine-readably? 1 rule [⏱️ Rate limits machine-readable Rate limits are declared in a machine-readable format. high Moderate Semantic](https://agentbadge.xyz/rules/AB-151) ## Executability Can an agent act on your API? Weight: 30 πŸ” Bot Authentication Can you prove which AI bot is making the request? 23 rules [πŸ” MCP Auth Discovery Your MCP server's authentication info is discoverable by agents. medium Moderate Capability](https://agentbadge.xyz/rules/AB-023) [✍️ Bot Signatures Directory Your site has a directory of bot signatures for verifying AI agent identities. medium Complex Capability](https://agentbadge.xyz/rules/AB-058) [πŸ‘₯ Bot Directory Members Your bot signatures directory has valid, recognized members. medium Moderate Capability](https://agentbadge.xyz/rules/AB-059) [πŸ”‘ Bot Public Keys Public keys for verified bots are reachable and valid. medium Moderate Capability](https://agentbadge.xyz/rules/AB-060) [πŸ›‘οΈ Protected Resource Metadata Your site publishes metadata about what resources are protected and how. medium Moderate Capability](https://agentbadge.xyz/rules/AB-063) [πŸ“œ Web Bot Auth Directory Your site has a directory for web-based bot authentication using HTTP message signatures. medium Complex Capability](https://agentbadge.xyz/rules/AB-067) [πŸ” OAuth2 preferred over static API keys Your API uses OAuth2 security schemes instead of static API keys. high Moderate Capability](https://agentbadge.xyz/rules/AB-128) [πŸ” Credentials via headers not query params API keys and tokens are passed in headers, not query parameters. high Quick fix Capability](https://agentbadge.xyz/rules/AB-129) [πŸ” OAuth scopes defined Your OAuth metadata declares scopes_supported. medium Quick fix Capability](https://agentbadge.xyz/rules/AB-130) [πŸ” Token revocation endpoint available Your OAuth metadata publishes a revocation_endpoint. medium Moderate Capability](https://agentbadge.xyz/rules/AB-131) [πŸ” Token introspection supported Your OAuth metadata publishes an introspection_endpoint (optional). low Moderate Capability](https://agentbadge.xyz/rules/AB-132) [πŸ” Private key JWT authentication Your token endpoint supports private_key_jwt auth method (optional). low Complex Capability](https://agentbadge.xyz/rules/AB-133) [πŸ” Token Exchange (RFC 8693) supported Your OAuth metadata supports token-exchange grant type (optional). medium Complex Capability](https://agentbadge.xyz/rules/AB-134) [πŸ” AAuth metadata endpoint available Your API publishes /.well-known/aauth.json with agent authorization metadata. medium Moderate Capability](https://agentbadge.xyz/rules/AB-135) [πŸ” Agent Authorization Grant supported Your OAuth metadata includes the agent_authorization grant type. medium Complex Capability](https://agentbadge.xyz/rules/AB-136) [πŸ” AAuth scope descriptions published Your aauth.json publishes scope_descriptions (optional). low Quick fix Capability](https://agentbadge.xyz/rules/AB-137) [πŸ” DPoP token binding supported Your OAuth metadata supports DPoP (RFC 9449) for token binding (optional). medium Complex Capability](https://agentbadge.xyz/rules/AB-138) [πŸ” mTLS-bound access tokens Your OAuth metadata supports mTLS certificate-bound tokens (optional). medium Complex Capability](https://agentbadge.xyz/rules/AB-139) [πŸ” Short-lived access tokens Your token endpoint returns expires_in with access tokens. medium Quick fix Capability](https://agentbadge.xyz/rules/AB-141) [πŸ” Refresh token rotation supported Your OAuth metadata includes refresh_token in grant_types_supported (optional). medium Moderate Capability](https://agentbadge.xyz/rules/AB-142) [πŸ” Token revocation endpoint reachable Your credential security analysis confirms revocation endpoint is supported. medium Moderate Capability](https://agentbadge.xyz/rules/AB-143) [πŸ” No static API keys in OpenAPI security Your OpenAPI spec does not use apiKey security schemes. high Moderate Capability](https://agentbadge.xyz/rules/AB-145) [πŸ” Authentication clarity Security schemes are declared in the OpenAPI spec. critical Moderate Capability](https://agentbadge.xyz/rules/AB-153) πŸͺͺ Identity Can agents verify your on-chain identity? 3 rules [πŸͺͺ WebFinger Identity Lookup Your site can answer 'who is this?' queries from AI agents. low Moderate Capability](https://agentbadge.xyz/rules/AB-056) [πŸ†” DID Document Your site provides a Decentralized Identifier document for on-chain identity verification. low Complex Capability](https://agentbadge.xyz/rules/AB-057) [key OAuth Authorization Server metadata (RFC 9728) OAuth Authorization Server Metadata published at /.well-known/oauth-authorization-server. medium Moderate Capability](https://agentbadge.xyz/rules/AB-112) πŸ’° Payments Can agents pay for your services programmatically? 11 rules [πŸ’° Paid Endpoint Response When an agent tries to access a paid feature, your site responds with a clear payment request. high Complex Capability](https://agentbadge.xyz/rules/AB-030) [πŸ”“ Payment Challenge Decodable The payment request your site sends is properly formatted and can be decoded by agents. high Complex Capability](https://agentbadge.xyz/rules/AB-031) [πŸ“‹ Payment Required Header Your payment responses include a header that tells agents payment is needed. high Moderate Capability](https://agentbadge.xyz/rules/AB-032) [πŸ‘€ Payment Recipient Your payment requests specify who should receive the payment. high Moderate Capability](https://agentbadge.xyz/rules/AB-033) [πŸ’΅ Payment Amount Your payment requests specify how much the agent needs to pay. medium Moderate Capability](https://agentbadge.xyz/rules/AB-034) [πŸ“„ Payment Discovery File Your site publishes a file that describes all payment options in one place. medium Moderate Capability](https://agentbadge.xyz/rules/AB-035) [🏦 Payment Facilitator Your payment requests specify a facilitator that can process the payment. medium Complex Capability](https://agentbadge.xyz/rules/AB-038) [⚑ Lightning Payment Support Your site supports Lightning Network payments for instant, low-cost transactions. high Complex Capability](https://agentbadge.xyz/rules/AB-070) [🎫 Lightning Payment Details Your Lightning payment responses include all required details for agents to pay. high Complex Capability](https://agentbadge.xyz/rules/AB-071) [πŸ’³ MPP (Machine Payments Protocol) Support Checks for /.well-known/mpp.json declaring Machine Payments Protocol support. medium Quick fix Capability](https://agentbadge.xyz/rules/AB-088) [πŸ’³ SPT (Stripe Payment Terms) Support Checks for /.well-known/spt.json declaring Stripe Payment Terms support. low Quick fix Capability](https://agentbadge.xyz/rules/AB-093) πŸͺ Bazaar Is your agent listed in the decentralized marketplace? 3 rules [πŸͺ Bazaar Discoverable Your agent marketplace listings can be discovered by other agents. medium Moderate Capability](https://agentbadge.xyz/rules/AB-036) [🏷️ Bazaar Service Declared Your site declares what services it offers in the Bazaar marketplace. low Moderate Capability](https://agentbadge.xyz/rules/AB-037) [πŸ›’ Bazaar in Lightning Payments Your Lightning payment responses include Bazaar marketplace information. medium Complex Capability](https://agentbadge.xyz/rules/AB-072) 🚫 Error Semantics Are 4xx error responses declared with schemas and descriptions in the spec? 1 rule [🚫 Error response schemas 4xx and 5xx error responses are declared with schemas. high Moderate Semantic](https://agentbadge.xyz/rules/AB-149) πŸ” Retry Semantics Are idempotency and retry guidance (Retry-After) declared for agents? 1 rule [πŸ” Retry semantics declared Idempotency-Key or Retry-After headers are documented. medium Moderate Semantic](https://agentbadge.xyz/rules/AB-154) πŸ§ͺ Sandbox Is a test/sandbox environment advertised for agent experimentation? 1 rule [πŸ§ͺ Sandbox declared A sandbox/test environment is documented in agent-guide. low Quick fix Capability](https://agentbadge.xyz/rules/AB-156) πŸ“Œ Versioning Is the API version declared with a deprecation/sunset policy? 1 rule [πŸ“Œ Versioning declared API version and deprecation policy are documented. medium Quick fix Semantic](https://agentbadge.xyz/rules/AB-155) ## Verifiability Can an agent verify what it observed? Weight: 25 βœ… Verification Can agents verify you are who you say you are? 2 rules [βœ… Owner Verification Your site can prove that you own the domain and are who you claim to be. medium Complex Semantic](https://agentbadge.xyz/rules/AB-013) [πŸ” Pricing/limits consistency Pricing and rate limits are consistent across all sources. medium Quick fix Semantic](https://agentbadge.xyz/rules/AB-152) πŸ—οΈ Infrastructure Are your caching, errors, and rate limits agent-ready? 6 rules [⚑ Cache Headers Your site sends cache headers so agents and CDNs know how to cache your content. medium Quick fix Semantic](https://agentbadge.xyz/rules/AB-045) [🚫 Structured 404 Errors Your site returns structured JSON for 404 errors instead of plain HTML. medium Quick fix Semantic](https://agentbadge.xyz/rules/AB-046) [⏱️ Rate Limit Headers Your site sends rate limit headers so agents know how many requests they can make. low Quick fix Semantic](https://agentbadge.xyz/rules/AB-047) [πŸ”’ HTTPS Redirect Enforced Your site automatically redirects HTTP requests to HTTPS so agents always use a secure connection. high Quick fix Semantic](https://agentbadge.xyz/rules/AB-073) [πŸ”’ Content-Security-Policy header Your homepage returns a Content-Security-Policy header. high Moderate Semantic](https://agentbadge.xyz/rules/AB-098) [πŸ”’ Referrer-Policy header Your homepage returns a Referrer-Policy header. low Quick fix Semantic](https://agentbadge.xyz/rules/AB-099) πŸ“œ Agent Policy Is there a machine-readable usage policy for automated clients? 1 rule [πŸ“œ Agent policy machine-readable A machine-readable usage policy for AI agents is present. medium Quick fix Semantic](https://agentbadge.xyz/rules/AB-157) ## How does AgentBadge compare? 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