Unhandled notifications with kiro

[andreaskundig]

Checklist

• I agree to communicate with the author myself (not AI-generated).
• I've read the README's Filing issues section.
• I'm running the latest versions (fill in below).
  • agent-shell: v0.47.1
  • acp.el: (sorry I don't see where to get it's version)
  • ACP package (e.g. claude-code-acp):
  • Agent CLI (e.g. claude, gemini): kiro-cli 1.27.2
• For issues, I'm including ACP traffic (as per README).

After I turned on logging kiro kept asking to file a feature request :

Unhandled notification (please file a feature request) and include:

{
  "jsonrpc": "2.0",
  "method": "_kiro.dev/metadata",
  "params": {
    "sessionId": "57736c7b-f25f-4435-95dc-2b07ca82125e",
    "contextUsagePercentage": 3.994499921798706
  }
}

This is the acp traffic:

OUTGOING OBJECT >

((jsonrpc . 2.0) (method . session/cancel) (params (sessionId . 57736c7b-f25f-4435-95dc-2b07ca82125e) (reason . User cancelled)))

OUTGOING TEXT >

{"jsonrpc":"2.0","method":"session/cancel","params":{"sessionId":"57736c7b-f25f-4435-95dc-2b07ca82125e","reason":"User cancelled"}}


INCOMING TEXT >

{"jsonrpc":"2.0","method":"_kiro.dev/metadata","params":{"sessionId":"57736c7b-f25f-4435-95dc-2b07ca82125e","contextUsagePercentage":3.994499921798706}}


INCOMING LINE >

{"jsonrpc":"2.0","method":"_kiro.dev/metadata","params":{"sessionId":"57736c7b-f25f-4435-95dc-2b07ca82125e","contextUsagePercentage":3.994499921798706}}

↳ Routing as notification

I first thought it was a problem with trying to interrupt it. Interrupting doesn't seem to work, but I haven't looked into it enough to file a bug.