chore: remove echo-memory demo plugin

plugins/README.md

@@ -45,11 +45,10 @@ stdin:  {"type": "after_turn", "agent_id": "...", "messages": [...]}
 stdout: {"type": "ok"}
 ```
 
-## Current Plugins (7)
+## Current Plugins (6)
 
 | Plugin | Hooks | Description |
 |--------|-------|-------------|
-| echo-memory | ingest, after_turn | Demo plugin that echoes user messages as recalled memories |
 | auto-summarizer | ingest, after_turn | Running conversation summary for long context compression |
 | conversation-logger | after_turn | Logs conversations to JSONL files for auditing and analytics |
 | guardrails | ingest | Safety filter detecting PII, prompt injection, and credential exposure |

plugins/echo-memory/README.md

@@ -1,14 +0,0 @@
-# echo-memory
-
-Simple demo plugin that echoes back the user message as a "recalled memory". Useful for verifying the plugin system works end-to-end.
-
-## Hooks
-
-| Hook | Script | Description |
-|------|--------|-------------|
-| ingest | `hooks/ingest.py` | Echoes the user message back as a recalled memory fragment |
-| after_turn | `hooks/after_turn.py` | Acknowledges each conversation turn (no-op demo) |
-
-## Usage
-
-Installed automatically when enabled in agent configuration.

plugins/echo-memory/hooks/README.md

@@ -1,15 +0,0 @@
-# echo-memory hooks
-
-Python hook scripts for the echo-memory demo plugin. Each script reads a JSON request from stdin and writes a JSON response to stdout.
-
-## Scripts
-
-| Script | Hook | Description |
-|--------|------|-------------|
-| `ingest.py` | ingest | Receives `{"message": "..."}`, returns it wrapped as a memory fragment |
-| `after_turn.py` | after_turn | Receives the conversation messages array, responds with `{"type": "ok"}` |
-
-## Protocol
-
-- **Input**: JSON object on stdin (fields vary by hook type)
-- **Output**: JSON object on stdout (`ingest_result` with memories, or `ok`)

plugins/echo-memory/hooks/after_turn.py

@@ -1,27 +0,0 @@
-#!/usr/bin/env python3
-"""Echo memory after_turn hook — demo plugin.
-
-Logs the number of messages in the conversation after each turn.
-
-Receives via stdin:
-    {"type": "after_turn", "agent_id": "...", "messages": [...]}
-
-Prints to stdout:
-    {"type": "ok"}
-"""
-import json
-import sys
-
-
-def main():
-    request = json.loads(sys.stdin.read())
-    agent_id = request.get("agent_id", "unknown")
-    messages = request.get("messages", [])
-
-    # In a real plugin you might update an index or persist state here.
-    # For this demo we just acknowledge.
-    print(json.dumps({"type": "ok"}), flush=True)
-
-
-if __name__ == "__main__":
-    main()

plugins/echo-memory/hooks/ingest.py

@@ -1,31 +0,0 @@
-#!/usr/bin/env python3
-"""Echo memory ingest hook — demo plugin.
-
-Echoes the user message back as a "recalled memory" to verify
-the plugin system works end-to-end.
-
-Receives via stdin:
-    {"type": "ingest", "agent_id": "...", "message": "user message text"}
-
-Prints to stdout:
-    {"type": "ingest_result", "memories": [{"content": "..."}]}
-"""
-import json
-import sys
-
-
-def main():
-    request = json.loads(sys.stdin.read())
-    message = request.get("message", "")
-    agent_id = request.get("agent_id", "unknown")
-
-    memories = [
-        {"content": f"[echo-memory] Agent {agent_id} received: {message[:200]}"}
-    ]
-
-    result = {"type": "ingest_result", "memories": memories}
-    print(json.dumps(result))
-
-
-if __name__ == "__main__":
-    main()

plugins/echo-memory/plugin.toml

@@ -1,8 +0,0 @@
-name = "echo-memory"
-version = "0.1.0"
-description = "Simple demo plugin that echoes back the user message as a 'recalled memory'"
-author = "librefang"
-
-[hooks]
-ingest = "hooks/ingest.py"
-after_turn = "hooks/after_turn.py"

plugins/echo-memory/requirements.txt

@@ -1 +0,0 @@
-# No external dependencies — uses only Python stdlib