Methodology
WebMCP manifest
ia.webmcp-manifest · 4.2
Act
MAY
Recommendation
Why it matters
No specification defines a WebMCP manifest and no agent reads one. This checkpoint is retired. Old reports still show it.
How to fix it
Use WebMCP form annotations or registerTool() instead of a manifest.
-
Remove /.well-known/webmcp.json and annotate the forms on the page.
Verify
Run a new scan for this checkpoint:
isagentready results {domain} --checkpoint ia.webmcp-manifest
Details Mapping, lifecycle and references
- AR mapping
- No AR practice
- Score role
- Informational
- Introduced
- 2026-08-24
- Methodology version
- 2026-10-22