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vision-augment

本地优先的多模态视觉 MCP —— 为无视觉 LLM(DeepSeek、GLM 等)提供可自定义端点的看图 / OCR / 文档解析能力。

  • 简化配置、本地优先:不强制依赖云端;OCR 与文档解析全部本地完成
  • 视觉理解用视觉模型:OpenAI 兼容通道链,按序降级,最后兜底本地 Ollama VL(无 key 即用)
  • 不限制模型渠道:任意 OpenAI 兼容端点,base_url + api_key + model 三元组可配多个
  • uvx 一键分发uvx vision-augment 直接接入任意 MCP harness

架构

MCP client (Hermes / Claude / OpenCode ...)
   └─ mcp_vision_augment_vision(task_type=reasoning|ocr|document)
        └─ Router ─┬─ reasoning → OpenAI 兼容通道链 + Ollama 兜底
                   ├─ ocr       → RapidOCR(本地)→ PaddleOCR(可选升级)
                   └─ document  → markitdown(本地)→ PaddleOCR-VL / MinerU(可选升级)

所有工具返回统一 JSON envelope:{task_type, tool_used, code, error, result, confidence, metadata},错误码 0-5。

快速开始

环境要求:Python >= 3.12,uv

方式一:无 key,本地 Ollama(默认)

ollama pull llava  # 或任一视觉模型(llava/vision/qwen2.5-vl/...)
uvx vision-augment

方式二:自定义 OpenAI 兼容端点(推荐)

uvx vision-augment[ocr,document]   # 按需安装本地 OCR/文档引擎
# 注册到 Hermes config.yaml(其他客户端见下)
mcp_servers:
  vision-augment:
    command: uvx
    args: [vision-augment]
    env:
      VISION_AUGMENT_CHANNELS: '[{"base_url": "https://api.example.com/v1", "api_key": "${API_KEY}", "model": "qwen3.7-plus"}]'

无通道配置时自动探测本地 Ollama VL 模型作为兜底;通道配置优先。

方式三:从 GitHub 直接安装(未发布到 PyPI 前)

# 最新 master(PEP 508 语法:extras 在 @ 之前)
uvx "vision-augment[ocr,document] @ git+https://github.com/CaoMeiYouRen/vision-augment"

# 锁定 tag / commit
uvx "vision-augment @ git+https://github.com/CaoMeiYouRen/vision-augment@v0.1.0"

# 长期安装到 PATH(等价 pipx)
uv tool install "vision-augment[ocr] @ git+https://github.com/CaoMeiYouRen/vision-augment"

方式四:HTTP 传输(streamable-http)

适合 Docker 部署、远程服务器、多客户端并发场景(stdio 单进程只能服务一个客户端):

VISION_AUGMENT_TRANSPORT=streamable-http VISION_AUGMENT_PORT=8000 uvx vision-augment
  • 默认绑定 127.0.0.1:8000,MCP 端点 /mcp;SDK 对 localhost 自动启用 DNS rebinding 防护
  • 跨机器访问:设置 VISION_AUGMENT_HOST=0.0.0.0并自行加反向代理/鉴权(远程暴露是部署方责任)
  • 客户端配置示例(Hermes):
mcp_servers:
  vision-augment:
    url: http://127.0.0.1:8000/mcp
    transport: streamable-http

注意:不要给 streamable-http 端点发送空 params 的 initialize 探测请求——SDK 会挂起该请求,用合法握手载荷探测。

注册到其他客户端

// Claude Desktop: claude_desktop_config.json
{ "mcpServers": { "vision-augment": { "command": "uvx", "args": ["vision-augment"] } } }
// OpenCode: opencode.json
{ "mcp": { "vision-augment": { "type": "local", "command": ["uvx", "vision-augment"], "enabled": true } } }

工具

工具 说明
mcp_vision_augment_vision 入口:task_type(reasoning 看图问答 / ocr 图片文字 / document 文档解析)+ source(路径 / file:// / http(s):// / data:URL)+ task + language
mcp_vision_augment_health 环境探测:通道/Ollama/OCR/文档引擎配置状态(不含密钥),供 agent 反馈缺失配置
mcp_vision_augment_clear_cache 清除本地结果缓存

安装与使用 Skill

仓库根目录的 SKILL.md 符合 Agent Skills 规范,可通过 npx skills 生态一键安装(需仓库已公开):

# 全局安装到 opencode / hermes-agent
npx skills add CaoMeiYouRen/vision-augment -g -a opencode -a hermes-agent -y

# 或项目级安装(不指定 -g)
npx skills add CaoMeiYouRen/vision-augment

# 查看已安装
npx skills list

Skill 安装后 agent 的工作方式:

  1. 环境探测:优先调用 mcp_vision_augment_health 检查通道/Ollama/引擎状态,自动向你反馈还缺哪些配置及安装命令(如 uvx vision-augment[ocr]
  2. 任务路由:看图 → reasoning;图片文字 → ocr;文档解析 → document,由 skill 指引 agent 选择
  3. 故障闭环:错误码 0-5 对应的处置路径写在 SKILL.md 中

手动安装:把 SKILL.md 复制到 ~/.config/opencode/skills/vision-augment/(opencode)或 ~/.hermes/skills/(Hermes)等目录即可。

配置(环境变量,均有默认值)

变量 默认 说明
VISION_AUGMENT_CHANNELS [] OpenAI 兼容通道 JSON 数组
VISION_AUGMENT_OLLAMA_URL http://127.0.0.1:11434 本地 Ollama 地址
VISION_AUGMENT_CACHE_TTL_SECONDS 86400 缓存 TTL(0=关闭)
VISION_AUGMENT_CACHE_DIR ~/.cache/vision-augment 缓存目录
VISION_AUGMENT_MAX_INPUT_MB 50 输入大小上限
VISION_AUGMENT_MAX_OUTPUT_CHARS 20000 输出截断上限
VISION_AUGMENT_ALLOW_URLS false 允许 http(s) 输入(防 SSRF,默认关闭)
VISION_AUGMENT_DEBUG false DEBUG 日志
VISION_AUGMENT_TRANSPORT stdio 传输方式:stdio / streamable-http
VISION_AUGMENT_HOST 127.0.0.1 HTTP 绑定地址
VISION_AUGMENT_PORT 8000 HTTP 端口

完整说明见 docs/design.md

开发

uv sync            # 安装开发环境(基础依赖)
uv run pytest      # 单元测试(不依赖重型引擎)
uv run ruff check  # 代码检查

安装可选引擎做集成验证:

uv sync --extra ocr --extra document   # RapidOCR + markitdown
# 或全量:uv sync --all-extras(含 PaddleOCR,体积大)

发布(CI 自动)

push 到 master 后,release workflowpython-semantic-release 根据 conventional commits 自动版本化(pyproject + __version__ + CHANGELOG + tag + GitHub Release),并通过 Trusted Publisher(OIDC,免 token) 发布到 PyPI。

Trusted Publisher 配置(PyPI → Publishing → Trusted Publishers → Add pending publisher):

字段
PyPI Project Name vision-augment
Owner CaoMeiYouRen
Repository name vision-augment
Workflow name release.yml
Environment name 留空

首次发布后 uvx vision-augment 即生效。手动发布备选:uv build && uv publish(需 UV_PUBLISH_TOKEN)。

文档

  • 需求文档(含需求评估与未覆盖问题评估)
  • 设计文档(架构、envelope 契约、通道链、缓存、平台支持矩阵)
  • SKILL.md(agent 使用技能)

许可证

MIT © 2026 CaoMeiYouRen

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