rip out smoosh for now, prep work for evals

Author: matteing

cli/src/components/config-panel.tsx

@@ -19,7 +19,7 @@ import { OverlayPanel, Indicator } from "./overlay-panel.js";
 
 // ── Types ────────────────────────────────────────────────────
 
-type FeatureKey = "subAgents" | "skills" | "debug" | "smoosh";
+type FeatureKey = "subAgents" | "skills" | "debug";
 type Section = "features" | "tools";
 
 interface MenuItem {
@@ -33,10 +33,9 @@ const FEATURE_LABELS: Record<FeatureKey, string> = {
   subAgents: "Sub-agents",
   skills: "Skills",
   debug: "Debug introspection",
-  smoosh: "Smoosh compression",
 };
 
-const FEATURE_KEYS: FeatureKey[] = ["subAgents", "skills", "debug", "smoosh"];
+const FEATURE_KEYS: FeatureKey[] = ["subAgents", "skills", "debug"];
 
 const SECTIONS: { key: Section; heading: string }[] = [
   { key: "features", heading: "Features" },

cli/src/hooks/use-opal-commands.ts

@@ -15,7 +15,6 @@ import { useHotkeys } from "./use-hotkeys.js";
 import { useCommands, type CommandRegistry } from "./use-commands.js";
 import { copyToClipboard, openPath } from "../lib/desktop.js";
 import type { Overlay } from "./use-overlay.js";
-import type { OpalConfigSetParams } from "../sdk/protocol.js";
 
 export interface UseOpalCommandsReturn {
   readonly cmds: ReturnType<typeof useCommands>;
@@ -77,43 +76,6 @@ export function useOpalCommands(
           setOverlay("opal");
         },
       },
-      smoosh: {
-        description: "Toggle smoosh compression or show status",
-        args: "[on|off]",
-        execute: async ({ arg }) => {
-          if (!session) return "No active session.";
-
-          if (arg === "on" || arg === "off") {
-            const enabled = arg === "on";
-            try {
-              await session.config.setRuntime({
-                features: { smoosh: enabled } as OpalConfigSetParams["features"],
-              });
-              pushStatus(`Smoosh ${enabled ? "enabled" : "disabled"}`, "success");
-            } catch (e: unknown) {
-              pushStatus(
-                `Failed to toggle smoosh: ${e instanceof Error ? e.message : String(e)}`,
-                "error",
-              );
-            }
-            return;
-          }
-
-          try {
-            const config = await session.config.getRuntime();
-            const enabled = config.features.smoosh;
-            const hasKb = config.tools.enabled.includes("kb_search");
-            const status = enabled ? "enabled" : "disabled";
-            const kb = hasKb ? "active (kb_search available)" : "no indexed content";
-            pushStatus(`Smoosh: ${status} · Knowledge base: ${kb}`, "info");
-          } catch (e: unknown) {
-            pushStatus(
-              `Failed to get smoosh status: ${e instanceof Error ? e.message : String(e)}`,
-              "error",
-            );
-          }
-        },
-      },
     }),
     // eslint-disable-next-line react-hooks/exhaustive-deps
     [session],

cli/src/sdk/protocol.ts

@@ -104,12 +104,7 @@ export type OpalConfigGetResult = {
   /** Erlang distribution info if active (node name and cookie), or null if not distributed. */
   distribution: { cookie: string; node: string } | null;
   /** Current runtime feature flags. */
-  features: {
-    debug: boolean;
-    skills: boolean;
-    smoosh: boolean;
-    subAgents: boolean;
-  };
+  features: { debug: boolean; skills: boolean; subAgents: boolean };
   /** Tool availability for the session. */
   tools: { all: string[]; disabled: string[]; enabled: string[] };
 };
@@ -118,12 +113,7 @@ export type OpalConfigSetParams = {
   /** Start or stop Erlang distribution. Pass {name, cookie?} to start, null to stop. */
   distribution?: { cookie?: string; name: string } | null;
   /** Feature flags to update. */
-  features?: {
-    debug: boolean;
-    skills: boolean;
-    smoosh: boolean;
-    subAgents: boolean;
-  };
+  features?: { debug: boolean; skills: boolean; subAgents: boolean };
   /** Target session ID. */
   sessionId: string;
   /** Exact list of enabled tool names. */
@@ -134,12 +124,7 @@ export type OpalConfigSetResult = {
   /** Erlang distribution info if active (node name and cookie), or null if not distributed. */
   distribution: { cookie: string; node: string } | null;
   /** Current runtime feature flags. */
-  features: {
-    debug: boolean;
-    skills: boolean;
-    smoosh: boolean;
-    subAgents: boolean;
-  };
+  features: { debug: boolean; skills: boolean; subAgents: boolean };
   /** Tool availability for the session. */
   tools: { all: string[]; disabled: string[]; enabled: string[] };
 };
@@ -204,12 +189,7 @@ export type SessionListResult = {
 
 export type SessionStartParams = {
   /** Boot-time feature toggles. */
-  features?: {
-    debug: boolean;
-    skills: boolean;
-    smoosh: boolean;
-    subAgents: boolean;
-  };
+  features?: { debug: boolean; skills: boolean; subAgents: boolean };
   /** Model to use. Defaults to config default. */
   model?: { id: string; provider: string; thinkingLevel?: string };
   /** If true, enable session persistence. */
@@ -399,26 +379,6 @@ export type SkillLoadedEvent = {
   name: string;
 };
 
-export type SmooshCompressEvent = {
-  /** Event type discriminator. */
-  readonly type: "smooshCompress";
-  /** Compressed output size in bytes. */
-  compressedBytes: number;
-  /** Original output size in bytes. */
-  rawBytes: number;
-  /** Tool that produced the output. */
-  tool: string;
-};
-
-export type SmooshIndexEvent = {
-  /** Event type discriminator. */
-  readonly type: "smooshIndex";
-  /** Original output size in bytes. */
-  rawBytes: number;
-  /** Tool that produced the output. */
-  tool: string;
-};
-
 export type StatusUpdateEvent = {
   /** Event type discriminator. */
   readonly type: "statusUpdate";
@@ -516,8 +476,6 @@ export type AgentEvent =
   | MessageQueuedEvent
   | MessageStartEvent
   | SkillLoadedEvent
-  | SmooshCompressEvent
-  | SmooshIndexEvent
   | StatusUpdateEvent
   | SubAgentEventEvent
   | ThinkingDeltaEvent

cli/src/sdk/session.ts

@@ -453,7 +453,6 @@ export async function createSession(opts: SessionOptions = {}): Promise<Session>
             skills: false,
             subAgents: false,
             debug: false,
-            smoosh: true,
             ...opts.features,
           },
         }

cli/src/state/timeline.ts

@@ -18,8 +18,6 @@ import type {
   AgentEvent,
   ToolExecutionStartEvent,
   ToolExecutionEndEvent,
-  SmooshCompressEvent,
-  SmooshIndexEvent,
 } from "../sdk/protocol.js";
 import type { TimelineEntry, ToolCall, AgentView, TokenUsage, StatusLevel } from "./types.js";
 
@@ -128,11 +126,6 @@ function updateToolEntry(
 
 // ── View-level reducer (shared across all agents) ────────────────
 
-function formatBytes(bytes: number): string {
-  if (bytes >= 1024) return `${(bytes / 1024).toFixed(1)} KB`;
-  return `${bytes} B`;
-}
-
 interface ViewFields {
   entries: readonly TimelineEntry[];
   thinking: string | null;
@@ -240,39 +233,6 @@ function reduceView(view: ViewFields, event: Record<string, unknown>): ViewField
     case "statusUpdate":
       return { ...view, statusMessage: (event.message as string) ?? null };
 
-    case "smooshCompress": {
-      const e = event as unknown as SmooshCompressEvent;
-      const ratio = ((1 - e.compressedBytes / e.rawBytes) * 100).toFixed(0);
-      return {
-        ...view,
-        statusMessage: null,
-        entries: [
-          ...view.entries,
-          {
-            kind: "status",
-            text: `Compressed ${e.tool} output (${formatBytes(e.rawBytes)} → ${formatBytes(e.compressedBytes)}, ${ratio}% reduction)`,
-            level: "info" as StatusLevel,
-          },
-        ],
-      };
-    }
-
-    case "smooshIndex": {
-      const e = event as unknown as SmooshIndexEvent;
-      return {
-        ...view,
-        statusMessage: null,
-        entries: [
-          ...view.entries,
-          {
-            kind: "status",
-            text: `Indexed ${e.tool} output (${formatBytes(e.rawBytes)}) into knowledge base`,
-            level: "info" as StatusLevel,
-          },
-        ],
-      };
-    }
-
     default:
       return view;
   }
@@ -318,8 +278,6 @@ export function applyEvent(state: TimelineSnapshot, event: AgentEvent): Timeline
     case "toolExecutionEnd":
     case "toolOutput":
     case "statusUpdate":
-    case "smooshCompress":
-    case "smooshIndex":
       return {
         ...state,
         agents: reduceAgentView(

docs/research/references.md

@@ -56,12 +56,6 @@ Compiled from `## References` sections across docs, plus README and ongoing rese
 
 ---
 
-## Context & Token Efficiency
-
-- [Context Mode](https://mksg.lu/blog/context-mode) — Mert Köseoğlu, 2026. MCP server that compresses tool outputs before they enter the context window, achieving 98% reduction. Reference implementation for Smoosh Knowledge Base: dual FTS5 tables (Porter + trigram), BM25 ranking, 3-layer fallback search, chunking strategies. Source: [github.com/mksglu/claude-context-mode](https://github.com/mksglu/claude-context-mode). ([smoosh](../smoosh.md))
-- [exqlite](https://github.com/elixir-sqlite/exqlite) — Direct SQLite3 NIF driver for Elixir. Used by KnowledgeBase for FTS5/BM25 without Ecto. Requires `SQLITE_ENABLE_FTS5=1` compile flag. ([smoosh](../smoosh.md))
-- [SQLite FTS5 Extension](https://sqlite.org/fts5.html) — Official SQLite docs for FTS5 virtual tables, `bm25()` ranking function, `highlight()`, and tokenizer configuration (`porter`, `unicode61`, `trigram`). ([smoosh](../smoosh.md))
-
 ## TODO
 
 Papers and resources to review and potentially integrate:

docs/smoosh.md docs/v2/smoosh.mddocs/smoosh.md renamed to docs/v2/smoosh.md

@@ -1,6 +1,6 @@
 # Smoosh!
 
-> **Status**: Implemented
+> **Status**: Idea (rolled back — not yet implemented)
 > **Scope**: `Opal.Agent.Smoosh.*`, `Opal.Tool.KbSearch`, `Opal.Agent.ToolRunner`
 
 ## The Algorithm at a Glance

opal/config/config.exs

@@ -3,11 +3,6 @@ import Config
 # Logger must use stderr — stdout is reserved for JSON-RPC over stdio.
 config :logger, :default_handler, config: %{type: :standard_error}
 
-# exqlite: enable FTS5 for Smoosh knowledge base
-config :exqlite,
-  force_build: true,
-  make_env: %{"EXQLITE_SYSTEM_CFLAGS" => "-DSQLITE_ENABLE_FTS5=1"}
-
 config :opal,
   # data_dir: "~/.opal",          # nil = platform default (Unix: ~/.opal, Windows: %APPDATA%/opal)
   # shell: :sh,                   # nil = auto-detect per platform