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Use native OpenCode compaction lifecycle #70

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9b41a3b
Use native OpenCode compaction lifecycle
ishaanxgupta Aug 12, 2026
3113da6
Delete src/services/compaction.test.ts
ishaanxgupta Aug 12, 2026
c80d761
Delete src/config.test.ts
ishaanxgupta Aug 12, 2026
03a8d6a
Remove README changes
ishaanxgupta Aug 12, 2026
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2 changes: 1 addition & 1 deletion bun.lock
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3 changes: 2 additions & 1 deletion package.json
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Original file line number Diff line number Diff line change
Expand Up @@ -30,7 +30,7 @@
"url": "https://github.com/supermemoryai/opencode-supermemory"
},
"devDependencies": {
"@opencode-ai/plugin": "^1.0.162",
"@opencode-ai/plugin": "^1.0.191",
"@types/bun": "latest",
"supermemory": "^4.0.0",
"typescript": "^5.7.3"
Expand All @@ -40,6 +40,7 @@
"hooks": [
"chat.message",
"permission.ask",
"experimental.session.compacting",
"event"
]
},
Expand Down
84 changes: 3 additions & 81 deletions src/cli.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -11,7 +11,6 @@ import { getTags } from "./services/tags.js";

const OPENCODE_CONFIG_DIR = join(homedir(), ".config", "opencode");
const OPENCODE_COMMAND_DIR = join(OPENCODE_CONFIG_DIR, "command");
const OH_MY_OPENCODE_CONFIG = join(OPENCODE_CONFIG_DIR, "oh-my-opencode.json");
const PLUGIN_NAME = "opencode-supermemory@latest";
const DEFAULT_CONFIG_FILE = CONFIG_FILE ?? join(OPENCODE_CONFIG_DIR, "supermemory.json");

Expand Down Expand Up @@ -344,58 +343,8 @@ function createCommands(): boolean {
return true;
}

function isOhMyOpencodeInstalled(): boolean {
const configPath = findOpencodeConfig();
if (!configPath) return false;

try {
const content = readFileSync(configPath, "utf-8");
return content.includes("oh-my-opencode");
} catch {
return false;
}
}

function isAutoCompactAlreadyDisabled(): boolean {
if (!existsSync(OH_MY_OPENCODE_CONFIG)) return false;

try {
const content = readFileSync(OH_MY_OPENCODE_CONFIG, "utf-8");
const config = JSON.parse(content);
const disabledHooks = config.disabled_hooks as string[] | undefined;
return disabledHooks?.includes("anthropic-context-window-limit-recovery") ?? false;
} catch {
return false;
}
}

function disableAutoCompactHook(): boolean {
try {
let config: Record<string, unknown> = {};

if (existsSync(OH_MY_OPENCODE_CONFIG)) {
const content = readFileSync(OH_MY_OPENCODE_CONFIG, "utf-8");
config = JSON.parse(content);
}

const disabledHooks = (config.disabled_hooks as string[]) || [];
if (!disabledHooks.includes("anthropic-context-window-limit-recovery")) {
disabledHooks.push("anthropic-context-window-limit-recovery");
}
config.disabled_hooks = disabledHooks;

writeFileSync(OH_MY_OPENCODE_CONFIG, JSON.stringify(config, null, 2));
console.log(`✓ Disabled anthropic-context-window-limit-recovery hook in oh-my-opencode.json`);
return true;
} catch (err) {
console.error("✗ Failed to update oh-my-opencode.json:", err);
return false;
}
}

interface InstallOptions {
tui: boolean;
disableAutoCompact: boolean;
}

async function install(options: InstallOptions): Promise<number> {
Expand Down Expand Up @@ -446,33 +395,9 @@ async function install(options: InstallOptions): Promise<number> {
createCommands();
}

// Step 3: Configure Oh My OpenCode (if installed)
if (isOhMyOpencodeInstalled()) {
console.log("\nStep 3: Configure Oh My OpenCode");
console.log("Detected Oh My OpenCode plugin.");
console.log("Supermemory handles context compaction, so the built-in context-window-limit-recovery hook should be disabled.");

if (isAutoCompactAlreadyDisabled()) {
console.log("✓ anthropic-context-window-limit-recovery hook already disabled");
} else {
if (options.tui) {
const shouldDisable = await confirm(rl!, "Disable anthropic-context-window-limit-recovery hook to let Supermemory handle context?");
if (!shouldDisable) {
console.log("Skipped.");
} else {
disableAutoCompactHook();
}
} else if (options.disableAutoCompact) {
disableAutoCompactHook();
} else {
console.log("Skipped. Use --disable-context-recovery to disable the hook in non-interactive mode.");
}
}
}

if (rl) rl.close();

// Step 4: Authenticate
// Final step: Authenticate
console.log("\n" + "─".repeat(50));
console.log("\n🔑 Final step: Authenticate with Supermemory\n");

Expand Down Expand Up @@ -654,7 +579,6 @@ opencode-supermemory - Persistent memory for OpenCode agents
Commands:
install Install and configure the plugin
--no-tui Non-interactive mode (for LLM agents)
--disable-context-recovery Disable Oh My OpenCode's context hook
login Authenticate with Supermemory (opens browser)
logout Clear stored credentials
status Show Supermemory connection status
Expand All @@ -676,13 +600,11 @@ if (args.length === 0 || args[0] === "help" || args[0] === "--help" || args[0] =

if (args[0] === "install") {
const noTui = args.includes("--no-tui");
const disableAutoCompact = args.includes("--disable-context-recovery");
install({ tui: !noTui, disableAutoCompact }).then((code) => process.exit(code));
install({ tui: !noTui }).then((code) => process.exit(code));
} else if (args[0] === "setup") {
console.log("Note: 'setup' is deprecated. Use 'install' instead.\n");
const noTui = args.includes("--no-tui");
const disableAutoCompact = args.includes("--disable-context-recovery");
install({ tui: !noTui, disableAutoCompact }).then((code) => process.exit(code));
install({ tui: !noTui }).then((code) => process.exit(code));
} else if (args[0] === "login") {
login().then((code) => process.exit(code));
} else if (args[0] === "logout") {
Expand Down
31 changes: 25 additions & 6 deletions src/config.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -12,6 +12,7 @@ const CONFIG_FILES = [
];

export const DEFAULT_BASE_URL = "https://api.supermemory.ai";
const DEFAULT_COMPACTION_THRESHOLD = 0.8;

interface SupermemoryConfig {
apiKey?: string;
Expand All @@ -26,7 +27,9 @@ interface SupermemoryConfig {
projectContainerTag?: string;
filterPrompt?: string;
keywordPatterns?: string[];
compactionThreshold?: number;
compactionEnabled?: boolean;
/** @deprecated OpenCode now owns the compaction trigger. Use compactionEnabled. */
compactionThreshold?: number | false;
autoRecallEveryPrompt?: boolean;
captureEveryNTurns?: number;
recallDirective?: string | null;
Expand Down Expand Up @@ -60,7 +63,8 @@ const DEFAULTS: Required<Omit<SupermemoryConfig, "apiKey" | "baseUrl" | "userCon
containerTagPrefix: "opencode",
filterPrompt: "You are a stateful coding agent. Remember all the information, including but not limited to user's coding preferences, tech stack, behaviours, workflows, and any other relevant details.",
keywordPatterns: [],
compactionThreshold: 0.80,
compactionEnabled: true,
compactionThreshold: DEFAULT_COMPACTION_THRESHOLD,
autoRecallEveryPrompt: false,
captureEveryNTurns: 0,
};
Expand All @@ -74,14 +78,25 @@ function isValidRegex(pattern: string): boolean {
}
}

function validateCompactionThreshold(value: number | undefined): number {
if (value === undefined || typeof value !== 'number' || isNaN(value)) {
return DEFAULTS.compactionThreshold;
export function validateCompactionThreshold(
value: number | false | undefined,
): number {
if (value === false || value === 0) return 0;
if (value === undefined || typeof value !== "number" || Number.isNaN(value)) {
return DEFAULT_COMPACTION_THRESHOLD;
}
if (value <= 0 || value > 1) return DEFAULTS.compactionThreshold;
if (value < 0 || value > 1) return DEFAULT_COMPACTION_THRESHOLD;
return value;
}

export function resolveCompactionEnabled(
enabled: boolean | undefined,
legacyThreshold: number | false | undefined,
): boolean {
if (enabled !== undefined) return enabled;
return validateCompactionThreshold(legacyThreshold) !== 0;
}

function validateCaptureEveryNTurns(
value: number | undefined,
fallback: number,
Expand Down Expand Up @@ -168,6 +183,10 @@ export const CONFIG = {
...DEFAULT_KEYWORD_PATTERNS,
...(fileConfig.keywordPatterns ?? []).filter(isValidRegex),
],
compactionEnabled: resolveCompactionEnabled(
fileConfig.compactionEnabled,
fileConfig.compactionThreshold,
),
compactionThreshold: validateCompactionThreshold(fileConfig.compactionThreshold),
autoRecallEveryPrompt:
fileConfig.autoRecallEveryPrompt ??
Expand Down
40 changes: 8 additions & 32 deletions src/index.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -73,44 +73,20 @@ export const SupermemoryPlugin: Plugin = async (ctx: PluginInput) => {
log("Plugin disabled - SUPERMEMORY_API_KEY not set");
}

// Fetch model limits once at plugin init
const modelLimits = new Map<string, number>();

(async () => {
try {
const response = await ctx.client.provider.list();
if (response.data?.all) {
for (const provider of response.data.all) {
if (provider.models) {
for (const [modelId, model] of Object.entries(provider.models)) {
if (model.limit?.context) {
modelLimits.set(`${provider.id}/${modelId}`, model.limit.context);
}
}
}
}
}
log("Model limits loaded", { count: modelLimits.size });
} catch (error) {
log("Failed to fetch model limits", { error: String(error) });
}
})();

const getModelLimit = (providerID: string, modelID: string): number | undefined => {
return modelLimits.get(`${providerID}/${modelID}`);
};

const compactionHook = isConfigured() && ctx.client
? createCompactionHook(ctx as CompactionContext, tags, {
threshold: CONFIG.compactionThreshold,
getModelLimit,
})
const compactionHook = isConfigured() && ctx.client && CONFIG.compactionEnabled
? createCompactionHook(ctx as CompactionContext, tags)
: null;
const captureHook = isConfigured() && ctx.client
? createCaptureHook(ctx, tags)
: null;

return {
"experimental.session.compacting": compactionHook
? async (input, output) => {
await compactionHook.compacting(input, output);
}
: undefined,

"chat.message": async (input, output) => {
if (!isConfigured()) return;

Expand Down
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