dsh-llm-github-copilot

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GitHub Copilot sign-in for DeepSeek Harness: a device-flow login page and chat commands. This plugin only supplies credentials; the Harness's built-in github-copilot route owns models, token refresh, images, and requests.

Requirements

• Harness 0.2.2-rc.1 (current development baseline); older supported releases and compatibility details.
• A GitHub account with Copilot access; Node.js ≥ 24 and pnpm ≥ 9 on PATH.
• The default Web profile, or a custom composition with @deepseek-ai/dsh-llm-pi-ai and dsh-credentials-local.

Install or update

Install from npm:

dsh plugin --profile web add @lujianjun19/dsh-llm-github-copilot -w

Update an existing installation:

dsh plugin --profile web update @lujianjun19/dsh-llm-github-copilot --latest -w

Restart dsh web and hard-refresh the browser. Confirm the version at the bottom of Settings → GitHub Copilot. The bundle is registered automatically; do not add a second plugin insert to the profile patch.

For GitHub source installs, exact versions, or delayed updates, see the guide.

Sign in and use a model

1. Open Settings → GitHub Copilot → Sign in.
2. Open the displayed GitHub URL, enter the device code, and authorize the GitHub App (VS Code). The plugin saves the token automatically.
3. In Settings → Models, add the built-in github-copilot provider if absent. No custom endpoint or pasted API key is needed.
4. Save, choose a model in the chat model selector, and send a request.

Signing in does not add the provider configuration. A visible model is not proof of account access; availability depends on the Harness catalog and your account/organization policies.

Chat commands are also available:

Command	Purpose
/copilot-login	Start sign-in
/copilot-status	Check whether a token is stored, not whether a live request succeeds
/copilot-logout	Remove the local grant and writable token reference

Sign-out does not revoke GitHub authorization or remove model configuration. If an external token remains, the UI reports it; remove that token from the environment/.env or external source, restart DSH, and sign out again.

Optional configuration

No configuration is needed for device-flow sign-in. To use an existing compatible long-lived GitHub OAuth token instead:

export GITHUB_COPILOT_OAUTH_TOKEN='<your-github-oauth-token>'
dsh web

An existing grant takes precedence. Do not assume an arbitrary PAT has Copilot access; short-lived Copilot API tokens are not suitable here.

The only plugin option, oauthTokenEnv, changes the credential reference name. Override the installed entry in the active profile's cordis.patch.yml:

- id: llm-github-copilot
  config:
    oauthTokenEnv: GITHUB_COPILOT_OAUTH_TOKEN

The consuming grant remains at llm-pi-ai/github-copilot; this option does not create another account/provider. Credential details.

More

• Troubleshooting, proxies, and old-version migration
• Development, local deployment, and rollback
• Development and release workflow
• Why this plugin is credential-only · Changelog · MIT license