`remember` keyword trigger creates invalid synthetic part IDs (`id` must start with `prt`)

[sirsir23333]

Description

When opencode-supermemory detects a memory keyword like remember, it injects a synthetic text part into the message. The injected part uses an id like supermemory-nudge-..., which does not satisfy OpenCode's part ID schema requirement that id must start with prt.

This causes message creation to fail with:

ZodError: [
  {
    "origin": "string",
    "code": "invalid_format",
    "format": "starts_with",
    "prefix": "prt",
    "path": ["id"],
    "message": "Invalid string: must start with \"prt\""
  }
]

I also found the same problem in the injected context part on first-message context injection: it uses supermemory-context-..., which also does not start with prt.

Reproduction

Environment:

• OpenCode 1.2.25
• opencode-supermemory cached install 2.0.4

Steps:

1. Enable the plugin in OpenCode config
2. Start OpenCode
3. Send a prompt containing remember, for example:

remember this preference: detailed progress updates

Actual

OpenCode fails while creating the user message with schema validation:

schema validation failure stack trace:
at createUserMessage ...
ZodError: Invalid string: must start with "prt"

Expected

The plugin should inject valid synthetic parts and the prompt should continue normally, allowing the agent to call the supermemory tool.

Root Cause

In src/index.ts, the plugin constructs synthetic Part objects with invalid IDs:

id: `supermemory-nudge-${Date.now()}`
id: `supermemory-context-${Date.now()}`

These should use the prt prefix expected by OpenCode.

Minimal Fix

- id: `supermemory-nudge-${Date.now()}`,
+ id: `prt_supermemory_nudge_${Date.now()}`,

- id: `supermemory-context-${Date.now()}`,
+ id: `prt_supermemory_context_${Date.now()}`,

Verification

After applying the patch locally, this succeeds:

opencode run "remember this preference: detailed progress updates"

and the plugin correctly triggers:

supermemory {"mode":"add","scope":"user","type":"preference",...}