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fix(memory): add minimum-length filter for auto-save messages

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Every user message was auto-saved to memory regardless of length,
flooding the store with trivial entries like "ok", "thanks", "hi".
These noise entries competed with real memories during recall, degrading
relevance — especially with keyword-only search.

Skip auto-saving messages shorter than 20 characters. Applied to both
the channel path (channels/mod.rs) and CLI agent path (agent/loop_.rs).

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
Edvard 2026-02-19 15:24:06 -05:00 • committed by Chummy
parent 63a59e3735
commit ea2ff7c53b
2 changed files with 15 additions and 5 deletions
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6
src/channels/mod.rs
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@ -81,6 +81,10 @@ use tokio_util::sync::CancellationToken;
type ConversationHistoryMap = Arc<Mutex<HashMap<String, Vec<ChatMessage>>>>;
/// Maximum history messages to keep per sender.
const MAX_CHANNEL_HISTORY: usize = 50;
/// Minimum user-message length (in chars) for auto-save to memory.
/// Messages shorter than this (e.g. "ok", "thanks") are not stored,
/// reducing noise in memory recall.
const AUTOSAVE_MIN_MESSAGE_CHARS: usize = 20;
/// Maximum characters per injected workspace file (matches `OpenClaw` default).
const BOOTSTRAP_MAX_CHARS: usize = 20_000;
@ -808,7 +812,7 @@ async fn process_channel_message(
let memory_context =
build_memory_context(ctx.memory.as_ref(), &msg.content, ctx.min_relevance_score).await;
if ctx.auto_save_memory {
if ctx.auto_save_memory && msg.content.chars().count() >= AUTOSAVE_MIN_MESSAGE_CHARS {
let autosave_key = conversation_memory_key(&msg);
let _ = ctx
.memory