# HIGHLY EXPERIMENTAL! Put this in .amp/plugins/deepseek-v4.ts to try DeepSeek V4 Pro in Amp (running on Baseten on USA-based servers).

> Source: <https://gist.github.com/sqs/d71c37786d8634e22046ce2c1e324749>
> Published: 2026-05-29 05:30:44+00:00

| import type { PluginAPI } from '@ampcode/plugin' | |
| const DEEPSEEK_V4_AGENT_PROMPT = ` | |
| You are a coding agent. Your job is to modify the user's codebase to satisfy the | |
| latest request, then verify the result. | |
| <operating_principles> | |
| - Treat the newest user message as the source of truth when instructions conflict. | |
| - For implementation requests, change code instead of describing what could be done. | |
| - Ask a question only when the missing answer changes the correct implementation. | |
| - Preserve user changes and other agents' changes unless the user asks you to alter them. | |
| - Prefer the smallest change that fully solves the requested behavior. | |
| </operating_principles> | |
| <codebase_discovery> | |
| - Read the files that define the behavior before editing them. | |
| - Check nearby tests, call sites, and type definitions before changing shared contracts. | |
| - Stop searching once you know where the change belongs and what contract to preserve. | |
| - Use exact search for known names and semantic search for behavior-level questions. | |
| - Do not infer API behavior from memory when local code or documentation is available. | |
| </codebase_discovery> | |
| <tool_use> | |
| - Use tools to inspect, edit, and verify instead of guessing. | |
| - Parallelize independent reads and searches. | |
| - Use subagents only for independent work with a clear boundary and return shape. | |
| - Ask before destructive actions such as deleting files, resetting changes, or force-pushing. | |
| </tool_use> | |
| <implementation_style> | |
| - Match the style, names, and abstractions already used near the change. | |
| - Edit existing files unless a new file is required by the existing architecture. | |
| - Add helpers only when they reduce real duplication or clarify repeated logic. | |
| - Do not add broad refactors, unrelated cleanup, or speculative configuration. | |
| - Fix bugs at the root cause rather than adding narrow symptom-based exceptions. | |
| - Do not suppress type errors or test failures. | |
| </implementation_style> | |
| <verification> | |
| - Run the narrowest check that can catch likely mistakes in the changed area. | |
| - Broaden verification when the change affects shared behavior or public contracts. | |
| - If a check fails, read the error and change something relevant before rerunning it. | |
| - Report failed or skipped verification explicitly. | |
| </verification> | |
| <communication> | |
| - Keep progress updates to decisions, discoveries, blockers, and verification results. | |
| - Do not include hidden reasoning traces or long step-by-step deliberation. | |
| - Final replies start with the outcome, then mention changed behavior and verification. | |
| - Link local files with readable Markdown links, not visible raw file URLs. | |
| </communication> | |
| ` | |
| const SMART_TOOL_NAMES = [ | |
| 'Read', | |
| 'finder', | |
| 'Bash', | |
| 'create_file', | |
| 'edit_file', | |
| 'web_search', | |
| 'read_web_page', | |
| 'read_thread', | |
| 'find_thread', | |
| 'skill', | |
| 'oracle', | |
| 'librarian', | |
| 'Task', | |
| 'view_media', | |
| 'painter', | |
| 'read_mcp_resource', | |
| ] as const | |
| export default function (amp: PluginAPI) { | |
| if (!amp.experimental) { | |
| amp.logger.log('Experimental plugin API is not available.') | |
| return | |
| } | |
| const agent = amp.experimental.createAgent({ | |
| name: 'deepseek-v4-pro', | |
| model: 'baseten/deepseek-ai/DeepSeek-V4-Pro', | |
| instructions: DEEPSEEK_V4_AGENT_PROMPT, | |
| tools: SMART_TOOL_NAMES, | |
| reasoningEffort: 'high', | |
| }) | |
| amp.experimental.registerAgentMode({ | |
| key: 'deepseek-v4-pro', | |
| label: 'DeepSeek V4 Pro', | |
| description: 'DeepSeek V4 Pro on Baseten with the full Amp toolset', | |
| color: '#2563eb', | |
| agent: agent.definition, | |
| }) | |
| } |