Connect locally signed-in Trae models to DeepSeek Harness with local DSH tools and a read-only credits overview.

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A DeepSeek Harness (DSH) bundle plugin that connects locally signed-in Trae CN models to the DSH model picker. Trae generates structured tool calls while DSH executes its own local tools, with a read-only Work/general credits and model-management panel.

• Trae model provider — registers locally signed-in Trae models as the trae provider (e.g. DeepSeek-V4-Flash, DeepSeek-V4-Pro).
• DSH local tool loop — gets pending structured tool_calls from Trae llm_utils_chat, lets DSH execute its own local tools, then returns tool results to the model.
• Trae CN account switching — detects local Trae CN and TRAE SOLO CN sign-ins, refreshes the token list, and lets users select an account without storing tokens in DSH settings.
• Read-only credits and model management — shows Work credits separately from the general credits usable by DSH, and manages which Trae models are enabled. Read-only queries do not consume credits.
• Secure loopback shim — random port + in-process random secret; the real Trae token is never handed to pi-ai.

DSH PiAiAdapter
  -> secure loopback shim
  -> TraeSoloBridge
  -> https://trae-api-cn.mchost.guru/api/agent/v3/llm_utils_chat
  -> Trae SSE / pending function_call
  -> OpenAI SSE tool_calls
  -> DSH executes local tools and returns their results

Usage overview hits the read-only https://api.trae.cn/trae/api/v2/pay/* and /trae/api/v2/ug/* endpoints.

See docs/IMPLEMENTATION_PLAN.md, docs/SOLO_ROUTE_DECISION.md, docs/USAGE_API_RESEARCH.md.

dsh plugin --profile desktop add dsh-connect-trae

Or directly via npm:

npm install dsh-connect-trae

Restart the DSH process after install/update/uninstall.

• Account data directory: the plugin reads %APPDATA%\Trae CN / %APPDATA%\TRAE SOLO CN → User\globalStorage\storage.json (unrelated to the install directory). The folder names match macOS, so no extra config is needed; if the name does not match, point the authFile + edition plugin options at the exact path.
• App version headers: the plugin reads appVersion from <LOCALAPPDATA>\Programs\<AppName>\resources\app\product.json and sends x-app-version / x-ide-version; if unreadable, those headers are omitted (same as the previous behavior).
• Raw Chat probing (known limitation): model-cache depends on the sqlite3 command-line tool, which is not installed by default on Windows; Raw Chat capability probing fails and falls back safely. Raw Chat is off by default and does not affect the main flow.
• See docs/WINDOWS_TOKEN_PROBE.md for troubleshooting.

pnpm install
pnpm run check   # typecheck + test + build

Local dev via a link: install to the desktop profile (restart DSH Desktop after editing):

dsh plugin --profile desktop add /Users/dmh2002/DshProject/dsh-connect-trae

• Wang-JQ77/dsh-trae-api (MIT) — Reference implementation for research into Trae authentication, sessions, and model protocols.

The open-source projects referenced for Trae integration (architecture/protocol research), together with their licenses and compliance notes, are recorded in THIRD_PARTY_NOTICES.md. When introducing new Trae-related external dependencies or reusing code from other projects, update that file accordingly and honor the upstream licenses.

This project is licensed under the MIT License. Copyright: Copyright (c) 2026 LaoDing.