Plugin event listener for "session.created" not firing

Description

Plugins that subscribe to the event bus are not receiving the session.created event. The event is published but plugins don't respond.

Plugins

Custom plugin in ~/.config/opencode/plugins/engram.ts (Engram memory system)

OpenCode version

1.2.10

Steps to reproduce

Create a plugin that listens to session.created via the event property
Start a new OpenCode session
Plugin doesn't receive the event

Screenshot and/or share link

Evidence: Engram does not activate automatically

Problem

According to AGENTS.md, mem_session_start should execute automatically at the start of each session.
But it doesn't happen - the user had to call it manually.

Log Evidence (opencode_session_created_bug.log)

Line 15 - Plugin loads:
INFO service=plugin path=...engram.ts loading plugin

Line 55 - MCP detected:
INFO service=mcp key=engram type=local found

Line 78 - MCP created:
INFO service=mcp key=engram toolCount=14 create() successfully created client

Lines 89-90 - ERRORS (here's the problem):
ERROR service=mcp clientName=engram error=MCP error -32601: prompts not supported
ERROR service=mcp clientName=engram error=MCP error -32601: resources not supported

Line 96 - OpenCode session created (without Engram):
INFO service=session id=ses_... created

Line 329 - ONLY HERE mem_session_start is called (manual):
INFO service=permission permission=engram_mem_session_start pattern=* ... evaluated

Conclusion

Engram plugin loads
There are MCP errors (prompts/resources not supported)
OpenCode session is created
mem_session_start is NEVER executed automatically
It only executes when the user calls it manually (line 329)

Possible Cause

The -32601 errors on lines 89-90 suggest that the Engram plugin does not support
some MCP methods that OpenCode expects, wh

Operating System

ubuntu 22

Terminal

Alacritty

FYI this is needed for https://github.com/mksglu/context-mode

+1

fix: await plugin event hooks and handle errors in database effects

+1

+1 cmon, we need this ASAP

+1

Hey everyone! 👋 While we wait for the official fix to get merged, I built a workaround plugin opencode-enforce-context-mode so you can still use context-mode properly despite the session.created bug.

It solves the problem using two steps:

Proactive Guidance: It bypasses the broken hook by using experimental.chat.messages.transform to inject the environment constraints directly into the first user message, so the AI knows to use ctx_* tools immediately.
Aggressive Enforcement: If the AI still attempts to run a forbidden native command (like grep or curl), it gets blocked by a fatal system directive that forces immediate compliance and redirects it to the correct context-mode alternative.

Just a friendly ping. Is #17517 ready to merge and fix this? Or is there something that still needs to be fixed beyond that?

Just asking because I'd like to play with that context-mode plugin but i kinda feel it becomes a messy situation if i need another plugin just to workaround a bug.

+1

import type { PluginModule } from "@opencode-ai/plugin"

export default {
  id: "local.session-created-toast",
  async server(input) {
    return {
      async event({ event }) {
        if (event.type !== "session.created") return

        await input.client.tui.showToast({
          body: {
            title: "My message",
            message: "My body",
            variant: "success",
            duration: 5000,
          },
          throwOnError: true,
        })
      },
    }
  },
} satisfies PluginModule

I cannot replicate this issue, here is an example plugin, the toast does fire when new sessions are created.

If someone can send me minimal repro or show how this doesnt work for them ill reopen

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Plugin event listener for "session.created" not firing #14808

Description

Plugins

OpenCode version

Steps to reproduce

Screenshot and/or share link

Evidence: Engram does not activate automatically

Problem

Log Evidence (opencode_session_created_bug.log)

Conclusion

Possible Cause

Operating System

Terminal

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Plugin event listener for "session.created" not firing #14808

Description

Description

Plugins

OpenCode version

Steps to reproduce

Screenshot and/or share link

Evidence: Engram does not activate automatically

Problem

Log Evidence (opencode_session_created_bug.log)

Conclusion

Possible Cause

Operating System

Terminal

Activity

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