AI Agents

Co-Existence: The Next Phase of AI

co-existence.ai

17 / 100

A new book from Ethan Mollick, author of Co-Intelligence. On sale October 20, 2026.

Scanned 2h ago · 2 views · Open site

Checks

HTTPS5/5
Served over HTTPS.
llms.txt12/12
Found /llms.txt (1363 chars).
Agent manifest0/15
No /.well-known/ai-agent.json.
Fix: Publish https://co-existence.ai/.well-known/ai-agent.json with name, description, capabilities, contact, auth, and pricing.
A2A agent card0/12
No /.well-known/agent-card.json.
Fix: Publish https://co-existence.ai/.well-known/agent-card.json with name, url, and skills or capabilities.
MCP endpoint0/12
No MCP document or endpoint found.
Fix: Publish /.well-known/mcp.json (or an MCP resource metadata document) pointing at your MCP server.
OpenAPI spec0/12
No OpenAPI or Swagger spec found.
Fix: Serve /openapi.json (or /swagger.json) with a valid OpenAPI spec, or link it from the homepage.
Named capabilities0/8
No named capabilities, skills, or API operations.
Fix: List named capabilities in the agent manifest, agent card skills, or OpenAPI path summaries.
I/O schemas0/8
No I/O schemas.
Fix: Add components.schemas / requestBody schemas in OpenAPI, or input/output schemas on each skill.
Machine-readable pricing0/8
No machine-readable pricing.
Fix: Add a pricing object to ai-agent.json, or publish /pricing.json with currency and product amounts.
Auth, contact, rate limits0/8
No contact, auth, or rate limit declaration.
Fix: Declare contact, auth, and rateLimit in ai-agent.json (and OpenAPI info.contact / securitySchemes).

8 checks short of a perfect 100. The fix lines above are the report — what to publish, at which path.

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