From 87c62498e97aa0eca67ac2512ad63729d77a3cb5 Mon Sep 17 00:00:00 2001
From: "10946620@163.com" <>
Date: Wed, 28 Jan 2026 14:23:24 +0800
Subject: [PATCH 1/2] Add DeepSeek provider support to onboarding flow

---
 AGENTS.md                                  |  5 +-
 findings.md                                | 19 +++++
 progress.md                                |  9 +++
 src/agents/model-auth.ts                   |  1 +
 src/agents/models-config.providers.ts      | 46 +++++++++++
 src/commands/auth-choice-options.ts        |  8 ++
 src/commands/auth-choice.apply.deepseek.ts | 92 ++++++++++++++++++++++
 src/commands/auth-choice.apply.ts          |  2 +
 src/commands/onboard-auth.config-core.ts   | 69 ++++++++++++++++
 src/commands/onboard-auth.credentials.ts   | 13 +++
 src/commands/onboard-auth.models.ts        | 24 ++++++
 src/commands/onboard-auth.ts               |  5 ++
 src/commands/onboard-types.ts              |  2 +
 src/infra/provider-usage.fetch.deepseek.ts | 17 ++++
 src/infra/provider-usage.fetch.ts          |  1 +
 src/infra/provider-usage.load.ts           |  3 +
 src/infra/provider-usage.shared.ts         |  2 +
 src/infra/provider-usage.types.ts          |  1 +
 task_plan.md                               | 13 +++
 19 files changed, 331 insertions(+), 1 deletion(-)
 create mode 100644 findings.md
 create mode 100644 progress.md
 create mode 100644 src/commands/auth-choice.apply.deepseek.ts
 create mode 100644 src/infra/provider-usage.fetch.deepseek.ts
 create mode 100644 task_plan.md

diff --git a/AGENTS.md b/AGENTS.md
index 44b0149fd..6fae71ceb 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -47,10 +47,13 @@
 - Type-check/build: `pnpm build` (tsc)
 - Lint/format: `pnpm lint` (oxlint), `pnpm format` (oxfmt)
 - Tests: `pnpm test` (vitest); coverage: `pnpm test:coverage`
+- Run single test: `pnpm vitest run src/path/to/test.ts` (fastest feedback loop).
 
 ## Coding Style & Naming Conventions
 - Language: TypeScript (ESM). Prefer strict typing; avoid `any`.
-- Formatting/linting via Oxlint and Oxfmt; run `pnpm lint` before commits.
+- Formatting/linting via Oxlint and Oxfmt; run `pnpm lint` before commits. Use `pnpm lint:fix` to auto-fix both.
+- Imports: Use standard ESM imports. No path aliases are configured; use relative paths.
+- Error Handling: Use strongly typed errors where possible. Handle specific error types rather than catching generic `Error`.
 - Add brief code comments for tricky or non-obvious logic.
 - Keep files concise; extract helpers instead of “V2” copies. Use existing patterns for CLI options and dependency injection via `createDefaultDeps`.
 - Aim to keep files under ~700 LOC; guideline only (not a hard guardrail). Split/refactor when it improves clarity or testability.
diff --git a/findings.md b/findings.md
new file mode 100644
index 000000000..4fc534cc5
--- /dev/null
+++ b/findings.md
@@ -0,0 +1,19 @@
+# Findings
+
+## Onboarding Implementation
+- Onboarding logic is spread across `src/commands/onboard-*` and `src/wizard/onboarding*.ts`.
+- `onboard-auth.ts` exports functions to apply configurations for various providers.
+- `onboard-auth.config-core.ts` and `onboard-auth.credentials.ts` handle core provider setup.
+- `onboard-auth.models.ts` defines model defaults.
+- **DeepSeek is currently missing** from the onboarding flow.
+
+## DeepSeek Integration Plan
+1.  **Define Defaults**: Add DeepSeek model constants in `src/commands/onboard-auth.models.ts` (reuse constants from `models-config.providers.ts` if possible, but they are private there, so likely redefine or export).
+2.  **Config Applicator**: Create `applyDeepSeekProviderConfig` and `applyDeepSeekConfig` in `src/commands/onboard-auth.config-core.ts` (or a new file if needed, but core seems fine).
+3.  **Credential Setter**: Add `setDeepSeekApiKey` in `src/commands/onboard-auth.credentials.ts`.
+4.  **Interactive Flow**: Update `src/commands/onboard-interactive.ts` or `src/commands/auth-choice.ts` to include DeepSeek as an option.
+5.  **Export**: Update `src/commands/onboard-auth.ts` to export the new functions.
+
+## Implementation Details
+- `DEEPSEEK_DEFAULT_MODEL_ID` = `deepseek-chat`
+- `DEEPSEEK_DEFAULT_MODEL_REF` = `deepseek/deepseek-chat`
diff --git a/progress.md b/progress.md
new file mode 100644
index 000000000..3a2594543
--- /dev/null
+++ b/progress.md
@@ -0,0 +1,9 @@
+# Progress Log
+
+## Session Start
+- Initialized planning files.
+- Started Discovery phase.
+- Identified onboarding files.
+- Implemented `DeepSeek` in onboarding flow.
+- Verified compilation with `bunx tsc`.
+- Completed task.
diff --git a/src/agents/model-auth.ts b/src/agents/model-auth.ts
index 96e4e4ae6..6975b5734 100644
--- a/src/agents/model-auth.ts
+++ b/src/agents/model-auth.ts
@@ -283,6 +283,7 @@ export function resolveEnvApiKey(provider: string): EnvApiKeyResult | null {
     minimax: "MINIMAX_API_KEY",
     synthetic: "SYNTHETIC_API_KEY",
     venice: "VENICE_API_KEY",
+    deepseek: "DEEPSEEK_API_KEY",
     mistral: "MISTRAL_API_KEY",
     opencode: "OPENCODE_API_KEY",
   };
diff --git a/src/agents/models-config.providers.ts b/src/agents/models-config.providers.ts
index a176dac8a..bf0a79286 100644
--- a/src/agents/models-config.providers.ts
+++ b/src/agents/models-config.providers.ts
@@ -64,6 +64,18 @@ const QWEN_PORTAL_DEFAULT_COST = {
   cacheWrite: 0,
 };
 
+const DEEPSEEK_BASE_URL = "https://api.deepseek.com";
+const DEEPSEEK_CHAT_MODEL_ID = "deepseek-chat";
+const DEEPSEEK_REASONER_MODEL_ID = "deepseek-reasoner";
+const DEEPSEEK_DEFAULT_CONTEXT_WINDOW = 64000;
+const DEEPSEEK_DEFAULT_MAX_TOKENS = 8192;
+const DEEPSEEK_DEFAULT_COST = {
+  input: 0.14,
+  output: 0.28,
+  cacheRead: 0.014,
+  cacheWrite: 0.14,
+};
+
 const OLLAMA_BASE_URL = "http://127.0.0.1:11434/v1";
 const OLLAMA_API_BASE_URL = "http://127.0.0.1:11434";
 const OLLAMA_DEFAULT_CONTEXT_WINDOW = 128000;
@@ -333,6 +345,33 @@ function buildQwenPortalProvider(): ProviderConfig {
   };
 }
 
+function buildDeepSeekProvider(): ProviderConfig {
+  return {
+    baseUrl: DEEPSEEK_BASE_URL,
+    api: "openai-completions",
+    models: [
+      {
+        id: DEEPSEEK_CHAT_MODEL_ID,
+        name: "DeepSeek Chat (V3)",
+        reasoning: false,
+        input: ["text"],
+        cost: DEEPSEEK_DEFAULT_COST,
+        contextWindow: DEEPSEEK_DEFAULT_CONTEXT_WINDOW,
+        maxTokens: DEEPSEEK_DEFAULT_MAX_TOKENS,
+      },
+      {
+        id: DEEPSEEK_REASONER_MODEL_ID,
+        name: "DeepSeek Reasoner (R1)",
+        reasoning: true,
+        input: ["text"],
+        cost: DEEPSEEK_DEFAULT_COST,
+        contextWindow: DEEPSEEK_DEFAULT_CONTEXT_WINDOW,
+        maxTokens: DEEPSEEK_DEFAULT_MAX_TOKENS,
+      },
+    ],
+  };
+}
+
 function buildSyntheticProvider(): ProviderConfig {
   return {
     baseUrl: SYNTHETIC_BASE_URL,
@@ -374,6 +413,13 @@ export async function resolveImplicitProviders(params: {
     providers.minimax = { ...buildMinimaxProvider(), apiKey: minimaxKey };
   }
 
+  const deepseekKey =
+    resolveEnvApiKeyVarName("deepseek") ??
+    resolveApiKeyFromProfiles({ provider: "deepseek", store: authStore });
+  if (deepseekKey) {
+    providers.deepseek = { ...buildDeepSeekProvider(), apiKey: deepseekKey };
+  }
+
   const moonshotKey =
     resolveEnvApiKeyVarName("moonshot") ??
     resolveApiKeyFromProfiles({ provider: "moonshot", store: authStore });
diff --git a/src/commands/auth-choice-options.ts b/src/commands/auth-choice-options.ts
index 6b49ff17b..7e4738bfe 100644
--- a/src/commands/auth-choice-options.ts
+++ b/src/commands/auth-choice-options.ts
@@ -20,6 +20,7 @@ export type AuthChoiceGroupId =
   | "minimax"
   | "synthetic"
   | "venice"
+  | "deepseek"
   | "qwen";
 
 export type AuthChoiceGroup = {
@@ -53,6 +54,12 @@ const AUTH_CHOICE_GROUP_DEFS: {
     hint: "M2.1 (recommended)",
     choices: ["minimax-api", "minimax-api-lightning"],
   },
+  {
+    value: "deepseek",
+    label: "DeepSeek",
+    hint: "V3 / R1 (low cost)",
+    choices: ["deepseek-api-key"],
+  },
   {
     value: "qwen",
     label: "Qwen",
@@ -147,6 +154,7 @@ export function buildAuthChoiceOptions(params: {
     label: "Venice AI API key",
     hint: "Privacy-focused inference (uncensored models)",
   });
+  options.push({ value: "deepseek-api-key", label: "DeepSeek API key" });
   options.push({
     value: "github-copilot",
     label: "GitHub Copilot (GitHub device login)",
diff --git a/src/commands/auth-choice.apply.deepseek.ts b/src/commands/auth-choice.apply.deepseek.ts
new file mode 100644
index 000000000..cae1a5175
--- /dev/null
+++ b/src/commands/auth-choice.apply.deepseek.ts
@@ -0,0 +1,92 @@
+import { ensureAuthProfileStore, resolveAuthProfileOrder } from "../agents/auth-profiles.js";
+import { resolveEnvApiKey } from "../agents/model-auth.js";
+import {
+  formatApiKeyPreview,
+  normalizeApiKeyInput,
+  validateApiKeyInput,
+} from "./auth-choice.api-key.js";
+import type { ApplyAuthChoiceParams, ApplyAuthChoiceResult } from "./auth-choice.apply.js";
+import { applyDefaultModelChoice } from "./auth-choice.default-model.js";
+import {
+  applyAuthProfileConfig,
+  applyDeepSeekConfig,
+  applyDeepSeekProviderConfig,
+  DEEPSEEK_DEFAULT_MODEL_REF,
+  setDeepSeekApiKey,
+} from "./onboard-auth.js";
+
+export async function applyAuthChoiceDeepSeek(
+  params: ApplyAuthChoiceParams,
+): Promise<ApplyAuthChoiceResult | null> {
+  let nextConfig = params.config;
+  let agentModelOverride: string | undefined;
+  const noteAgentModel = async (model: string) => {
+    if (!params.agentId) return;
+    await params.prompter.note(
+      `Default model set to ${model} for agent "${params.agentId}".`,
+      "Model configured",
+    );
+  };
+
+  const authChoice = params.authChoice;
+  if (
+    authChoice === "deepseek-api-key" ||
+    (authChoice === "apiKey" && params.opts?.tokenProvider === "deepseek")
+  ) {
+    let hasCredential = false;
+    if (!hasCredential && params.opts?.token && params.opts?.tokenProvider === "deepseek") {
+      await setDeepSeekApiKey(normalizeApiKeyInput(params.opts.token), params.agentDir);
+      hasCredential = true;
+    }
+
+    if (!hasCredential) {
+      await params.prompter.note(
+        [
+          "DeepSeek provides low-cost, high-performance models (V3, R1).",
+          "Get your API key at: https://platform.deepseek.com/api_keys",
+        ].join("\n"),
+        "DeepSeek",
+      );
+    }
+    const envKey = resolveEnvApiKey("deepseek");
+    if (envKey) {
+      const useExisting = await params.prompter.confirm({
+        message: `Use existing DEEPSEEK_API_KEY (${envKey.source}, ${formatApiKeyPreview(envKey.apiKey)})?`,
+        initialValue: true,
+      });
+      if (useExisting) {
+        await setDeepSeekApiKey(envKey.apiKey, params.agentDir);
+        hasCredential = true;
+      }
+    }
+    if (!hasCredential) {
+      const key = await params.prompter.text({
+        message: "Enter DeepSeek API key",
+        validate: validateApiKeyInput,
+      });
+      await setDeepSeekApiKey(normalizeApiKeyInput(String(key)), params.agentDir);
+    }
+    nextConfig = applyAuthProfileConfig(nextConfig, {
+      profileId: "deepseek:default",
+      provider: "deepseek",
+      mode: "api_key",
+    });
+    {
+      const applied = await applyDefaultModelChoice({
+        config: nextConfig,
+        setDefaultModel: params.setDefaultModel,
+        defaultModel: DEEPSEEK_DEFAULT_MODEL_REF,
+        applyDefaultConfig: applyDeepSeekConfig,
+        applyProviderConfig: applyDeepSeekProviderConfig,
+        noteDefault: DEEPSEEK_DEFAULT_MODEL_REF,
+        noteAgentModel,
+        prompter: params.prompter,
+      });
+      nextConfig = applied.config;
+      agentModelOverride = applied.agentModelOverride ?? agentModelOverride;
+    }
+    return { config: nextConfig, agentModelOverride };
+  }
+
+  return null;
+}
diff --git a/src/commands/auth-choice.apply.ts b/src/commands/auth-choice.apply.ts
index f139b509f..e3b9a8f9a 100644
--- a/src/commands/auth-choice.apply.ts
+++ b/src/commands/auth-choice.apply.ts
@@ -4,6 +4,7 @@ import type { WizardPrompter } from "../wizard/prompts.js";
 import { applyAuthChoiceAnthropic } from "./auth-choice.apply.anthropic.js";
 import { applyAuthChoiceApiProviders } from "./auth-choice.apply.api-providers.js";
 import { applyAuthChoiceCopilotProxy } from "./auth-choice.apply.copilot-proxy.js";
+import { applyAuthChoiceDeepSeek } from "./auth-choice.apply.deepseek.js";
 import { applyAuthChoiceGitHubCopilot } from "./auth-choice.apply.github-copilot.js";
 import { applyAuthChoiceGoogleAntigravity } from "./auth-choice.apply.google-antigravity.js";
 import { applyAuthChoiceGoogleGeminiCli } from "./auth-choice.apply.google-gemini-cli.js";
@@ -45,6 +46,7 @@ export async function applyAuthChoice(
     applyAuthChoiceGoogleAntigravity,
     applyAuthChoiceGoogleGeminiCli,
     applyAuthChoiceCopilotProxy,
+    applyAuthChoiceDeepSeek,
     applyAuthChoiceQwenPortal,
   ];
 
diff --git a/src/commands/onboard-auth.config-core.ts b/src/commands/onboard-auth.config-core.ts
index 921ee01d1..702e2e000 100644
--- a/src/commands/onboard-auth.config-core.ts
+++ b/src/commands/onboard-auth.config-core.ts
@@ -19,6 +19,10 @@ import {
 import {
   buildKimiCodeModelDefinition,
   buildMoonshotModelDefinition,
+  buildDeepSeekModelDefinition,
+  DEEPSEEK_BASE_URL,
+  DEEPSEEK_DEFAULT_MODEL_ID,
+  DEEPSEEK_DEFAULT_MODEL_REF,
   KIMI_CODE_BASE_URL,
   KIMI_CODE_MODEL_ID,
   KIMI_CODE_MODEL_REF,
@@ -27,6 +31,71 @@ import {
   MOONSHOT_DEFAULT_MODEL_REF,
 } from "./onboard-auth.models.js";
 
+export function applyDeepSeekProviderConfig(cfg: MoltbotConfig): MoltbotConfig {
+  const models = { ...cfg.agents?.defaults?.models };
+  models[DEEPSEEK_DEFAULT_MODEL_REF] = {
+    ...models[DEEPSEEK_DEFAULT_MODEL_REF],
+    alias: models[DEEPSEEK_DEFAULT_MODEL_REF]?.alias ?? "DeepSeek V3",
+  };
+
+  const providers = { ...cfg.models?.providers };
+  const existingProvider = providers.deepseek;
+  const existingModels = Array.isArray(existingProvider?.models) ? existingProvider.models : [];
+  const defaultModel = buildDeepSeekModelDefinition();
+  const hasDefaultModel = existingModels.some((model) => model.id === DEEPSEEK_DEFAULT_MODEL_ID);
+  const mergedModels = hasDefaultModel ? existingModels : [...existingModels, defaultModel];
+  const { apiKey: existingApiKey, ...existingProviderRest } = (existingProvider ?? {}) as Record<
+    string,
+    unknown
+  > as { apiKey?: string };
+  const resolvedApiKey = typeof existingApiKey === "string" ? existingApiKey : undefined;
+  const normalizedApiKey = resolvedApiKey?.trim();
+  providers.deepseek = {
+    ...existingProviderRest,
+    baseUrl: DEEPSEEK_BASE_URL,
+    api: "openai-completions",
+    ...(normalizedApiKey ? { apiKey: normalizedApiKey } : {}),
+    models: mergedModels.length > 0 ? mergedModels : [defaultModel],
+  };
+
+  return {
+    ...cfg,
+    agents: {
+      ...cfg.agents,
+      defaults: {
+        ...cfg.agents?.defaults,
+        models,
+      },
+    },
+    models: {
+      mode: cfg.models?.mode ?? "merge",
+      providers,
+    },
+  };
+}
+
+export function applyDeepSeekConfig(cfg: MoltbotConfig): MoltbotConfig {
+  const next = applyDeepSeekProviderConfig(cfg);
+  const existingModel = next.agents?.defaults?.model;
+  return {
+    ...next,
+    agents: {
+      ...next.agents,
+      defaults: {
+        ...next.agents?.defaults,
+        model: {
+          ...(existingModel && "fallbacks" in (existingModel as Record<string, unknown>)
+            ? {
+                fallbacks: (existingModel as { fallbacks?: string[] }).fallbacks,
+              }
+            : undefined),
+          primary: DEEPSEEK_DEFAULT_MODEL_REF,
+        },
+      },
+    },
+  };
+}
+
 export function applyZaiConfig(cfg: MoltbotConfig): MoltbotConfig {
   const models = { ...cfg.agents?.defaults?.models };
   models[ZAI_DEFAULT_MODEL_REF] = {
diff --git a/src/commands/onboard-auth.credentials.ts b/src/commands/onboard-auth.credentials.ts
index b2fb58542..1a35752ab 100644
--- a/src/commands/onboard-auth.credentials.ts
+++ b/src/commands/onboard-auth.credentials.ts
@@ -73,6 +73,19 @@ export async function setMoonshotApiKey(key: string, agentDir?: string) {
   });
 }
 
+export async function setDeepSeekApiKey(key: string, agentDir?: string) {
+  // Write to resolved agent dir so gateway finds credentials on startup.
+  upsertAuthProfile({
+    profileId: "deepseek:default",
+    credential: {
+      type: "api_key",
+      provider: "deepseek",
+      key,
+    },
+    agentDir: resolveAuthAgentDir(agentDir),
+  });
+}
+
 export async function setKimiCodeApiKey(key: string, agentDir?: string) {
   // Write to resolved agent dir so gateway finds credentials on startup.
   upsertAuthProfile({
diff --git a/src/commands/onboard-auth.models.ts b/src/commands/onboard-auth.models.ts
index de5a4edaa..22723e2dd 100644
--- a/src/commands/onboard-auth.models.ts
+++ b/src/commands/onboard-auth.models.ts
@@ -21,6 +21,18 @@ export const KIMI_CODE_HEADERS = { "User-Agent": "KimiCLI/0.77" } as const;
 export const KIMI_CODE_COMPAT = { supportsDeveloperRole: false } as const;
 
 // Pricing: MiniMax doesn't publish public rates. Override in models.json for accurate costs.
+export const DEEPSEEK_BASE_URL = "https://api.deepseek.com";
+export const DEEPSEEK_DEFAULT_MODEL_ID = "deepseek-chat";
+export const DEEPSEEK_DEFAULT_MODEL_REF = `deepseek/${DEEPSEEK_DEFAULT_MODEL_ID}`;
+export const DEEPSEEK_DEFAULT_CONTEXT_WINDOW = 64000;
+export const DEEPSEEK_DEFAULT_MAX_TOKENS = 8192;
+export const DEEPSEEK_DEFAULT_COST = {
+  input: 0.14,
+  output: 0.28,
+  cacheRead: 0.014,
+  cacheWrite: 0.14,
+};
+
 export const MINIMAX_API_COST = {
   input: 15,
   output: 60,
@@ -103,6 +115,18 @@ export function buildMoonshotModelDefinition(): ModelDefinitionConfig {
   };
 }
 
+export function buildDeepSeekModelDefinition(): ModelDefinitionConfig {
+  return {
+    id: DEEPSEEK_DEFAULT_MODEL_ID,
+    name: "DeepSeek Chat (V3)",
+    reasoning: false,
+    input: ["text"],
+    cost: DEEPSEEK_DEFAULT_COST,
+    contextWindow: DEEPSEEK_DEFAULT_CONTEXT_WINDOW,
+    maxTokens: DEEPSEEK_DEFAULT_MAX_TOKENS,
+  };
+}
+
 export function buildKimiCodeModelDefinition(): ModelDefinitionConfig {
   return {
     id: KIMI_CODE_MODEL_ID,
diff --git a/src/commands/onboard-auth.ts b/src/commands/onboard-auth.ts
index b122d89cf..af0abd248 100644
--- a/src/commands/onboard-auth.ts
+++ b/src/commands/onboard-auth.ts
@@ -5,6 +5,8 @@ export {
 export { VENICE_DEFAULT_MODEL_ID, VENICE_DEFAULT_MODEL_REF } from "../agents/venice-models.js";
 export {
   applyAuthProfileConfig,
+  applyDeepSeekConfig,
+  applyDeepSeekProviderConfig,
   applyKimiCodeConfig,
   applyKimiCodeProviderConfig,
   applyMoonshotConfig,
@@ -35,6 +37,7 @@ export {
 export {
   OPENROUTER_DEFAULT_MODEL_REF,
   setAnthropicApiKey,
+  setDeepSeekApiKey,
   setGeminiApiKey,
   setKimiCodeApiKey,
   setMinimaxApiKey,
@@ -50,10 +53,12 @@ export {
   ZAI_DEFAULT_MODEL_REF,
 } from "./onboard-auth.credentials.js";
 export {
+  buildDeepSeekModelDefinition,
   buildKimiCodeModelDefinition,
   buildMinimaxApiModelDefinition,
   buildMinimaxModelDefinition,
   buildMoonshotModelDefinition,
+  DEEPSEEK_DEFAULT_MODEL_REF,
   DEFAULT_MINIMAX_BASE_URL,
   KIMI_CODE_BASE_URL,
   KIMI_CODE_MODEL_ID,
diff --git a/src/commands/onboard-types.ts b/src/commands/onboard-types.ts
index aa1d9afe0..0dec3a8fc 100644
--- a/src/commands/onboard-types.ts
+++ b/src/commands/onboard-types.ts
@@ -27,6 +27,7 @@ export type AuthChoice =
   | "minimax"
   | "minimax-api"
   | "minimax-api-lightning"
+  | "deepseek-api-key"
   | "opencode-zen"
   | "github-copilot"
   | "copilot-proxy"
@@ -68,6 +69,7 @@ export type OnboardOptions = {
   geminiApiKey?: string;
   zaiApiKey?: string;
   minimaxApiKey?: string;
+  deepseekApiKey?: string;
   syntheticApiKey?: string;
   veniceApiKey?: string;
   opencodeZenApiKey?: string;
diff --git a/src/infra/provider-usage.fetch.deepseek.ts b/src/infra/provider-usage.fetch.deepseek.ts
new file mode 100644
index 000000000..d72a96b21
--- /dev/null
+++ b/src/infra/provider-usage.fetch.deepseek.ts
@@ -0,0 +1,17 @@
+import type { ProviderUsageSnapshot } from "./provider-usage.types.js";
+
+export async function fetchDeepSeekUsage(
+  _token: string,
+  _timeoutMs: number,
+  _fetchFn: typeof fetch,
+): Promise<ProviderUsageSnapshot> {
+  // DeepSeek API currently does not provide a standard usage/subscription endpoint
+  // that matches the OpenAI format or similar.
+  // We return a placeholder to satisfy the interface.
+  return {
+    provider: "deepseek",
+    displayName: "DeepSeek",
+    windows: [],
+    // error: "Usage API not supported", // Optional: hide error if we don't want it to show up as failed
+  };
+}
diff --git a/src/infra/provider-usage.fetch.ts b/src/infra/provider-usage.fetch.ts
index 070396554..a96393265 100644
--- a/src/infra/provider-usage.fetch.ts
+++ b/src/infra/provider-usage.fetch.ts
@@ -4,4 +4,5 @@ export { fetchCodexUsage } from "./provider-usage.fetch.codex.js";
 export { fetchCopilotUsage } from "./provider-usage.fetch.copilot.js";
 export { fetchGeminiUsage } from "./provider-usage.fetch.gemini.js";
 export { fetchMinimaxUsage } from "./provider-usage.fetch.minimax.js";
+export { fetchDeepSeekUsage } from "./provider-usage.fetch.deepseek.js";
 export { fetchZaiUsage } from "./provider-usage.fetch.zai.js";
diff --git a/src/infra/provider-usage.load.ts b/src/infra/provider-usage.load.ts
index 39a97a86c..d4b828b4c 100644
--- a/src/infra/provider-usage.load.ts
+++ b/src/infra/provider-usage.load.ts
@@ -4,6 +4,7 @@ import {
   fetchClaudeUsage,
   fetchCodexUsage,
   fetchCopilotUsage,
+  fetchDeepSeekUsage,
   fetchGeminiUsage,
   fetchMinimaxUsage,
   fetchZaiUsage,
@@ -66,6 +67,8 @@ export async function loadProviderUsageSummary(
             return await fetchCodexUsage(auth.token, auth.accountId, timeoutMs, fetchFn);
           case "minimax":
             return await fetchMinimaxUsage(auth.token, timeoutMs, fetchFn);
+          case "deepseek":
+            return await fetchDeepSeekUsage(auth.token, timeoutMs, fetchFn);
           case "zai":
             return await fetchZaiUsage(auth.token, timeoutMs, fetchFn);
           default:
diff --git a/src/infra/provider-usage.shared.ts b/src/infra/provider-usage.shared.ts
index 6c8c1d9bb..1aa4f7a3a 100644
--- a/src/infra/provider-usage.shared.ts
+++ b/src/infra/provider-usage.shared.ts
@@ -9,6 +9,7 @@ export const PROVIDER_LABELS: Record<UsageProviderId, string> = {
   "google-gemini-cli": "Gemini",
   "google-antigravity": "Antigravity",
   minimax: "MiniMax",
+  deepseek: "DeepSeek",
   "openai-codex": "Codex",
   zai: "z.ai",
 };
@@ -19,6 +20,7 @@ export const usageProviders: UsageProviderId[] = [
   "google-gemini-cli",
   "google-antigravity",
   "minimax",
+  "deepseek",
   "openai-codex",
   "zai",
 ];
diff --git a/src/infra/provider-usage.types.ts b/src/infra/provider-usage.types.ts
index cef446ceb..169439f7e 100644
--- a/src/infra/provider-usage.types.ts
+++ b/src/infra/provider-usage.types.ts
@@ -23,5 +23,6 @@ export type UsageProviderId =
   | "google-gemini-cli"
   | "google-antigravity"
   | "minimax"
+  | "deepseek"
   | "openai-codex"
   | "zai";
diff --git a/task_plan.md b/task_plan.md
new file mode 100644
index 000000000..d9db5f78f
--- /dev/null
+++ b/task_plan.md
@@ -0,0 +1,13 @@
+# Task Plan: Enable DeepSeek in Onboarding
+
+## Goal
+Verify and enable DeepSeek provider support in the `moltbot onboard` command.
+
+## Phases
+- [ ] Discovery: Analyze `moltbot onboard` implementation to see how providers are listed. <!-- id: 0 -->
+- [ ] Implementation: Add DeepSeek to the onboarding provider list if missing. <!-- id: 1 -->
+- [ ] Verification: Verify the changes. <!-- id: 2 -->
+
+## Current Status
+- Phase: Discovery
+- Status: Pending

From 0f56c7086df48fb6efa47ac2b6e50b226d5a295c Mon Sep 17 00:00:00 2001
From: "10946620@163.com" <>
Date: Fri, 30 Jan 2026 14:13:20 +0800
Subject: [PATCH 2/2] reset

---
 task_plan.md | 13 -------------
 1 file changed, 13 deletions(-)
 delete mode 100644 task_plan.md

diff --git a/task_plan.md b/task_plan.md
deleted file mode 100644
index d9db5f78f..000000000
--- a/task_plan.md
+++ /dev/null
@@ -1,13 +0,0 @@
-# Task Plan: Enable DeepSeek in Onboarding
-
-## Goal
-Verify and enable DeepSeek provider support in the `moltbot onboard` command.
-
-## Phases
-- [ ] Discovery: Analyze `moltbot onboard` implementation to see how providers are listed. <!-- id: 0 -->
-- [ ] Implementation: Add DeepSeek to the onboarding provider list if missing. <!-- id: 1 -->
-- [ ] Verification: Verify the changes. <!-- id: 2 -->
-
-## Current Status
-- Phase: Discovery
-- Status: Pending