feat: Add GitLab Duo Agentic Chat Provider Support #7333

vglafirov · 2026-01-08T12:55:16Z

Add GitLab Duo Provider Support

Problem

In-line with GitLab's open-core strategy, we want to officially integrate GitLab Duo with OpenCode as a supported provider, operable with both GitLab.com and self-hosted GitLab instances. To streamline our users' journey across tools and enable access to GitLab's AI capabilities including agentic chat with native tool calling, GitLab is upstreaming the required provider packages to this repository.

Solution

This PR adds GitLab as a supported provider with three agentic chat model variants (Haiku, Sonnet, Opus), enabling seamless integration with GitLab.com and self-hosted instances.

Changes

Dependencies Added

@gitlab/[email protected] - Provider implementation
@gitlab/[email protected] - OAuth/PAT authentication
@gitlab/[email protected] - GitLab API tools

Provider Implementation

Added GitLab to bundled providers in provider.ts
Implemented custom loader with multi-source auth (env, config, OAuth, PAT)
Registered three Claude-based models: haiku-4-5, sonnet-4-5, opus-4-5
OAuth token refresh support
Self-hosted GitLab instance support via GITLAB_INSTANCE_URL

Plugin Auto-Loading

GitLab auth/tools plugins load automatically when GitLab is configured
Checks environment variables, config, and auth.json
Respects OPENCODE_DISABLE_DEFAULT_PLUGINS flag

Tests

Added 8 provider-specific tests covering auth methods, config options, and model availability
All 619 existing tests pass

Files Changed

packages/opencode/package.json - Added 3 GitLab dependencies
packages/opencode/src/provider/provider.ts - GitLab provider implementation
packages/opencode/src/plugin/index.ts - Auto-loading logic
packages/opencode/test/provider/gitlab-duo.test.ts - New tests (8 tests)
packages/docs/essentials/gitlab-duo.mdx - Documentation

Usage

Basic setup with environment variable:

export GITLAB_TOKEN="glpat-xxxxxxxxxxxx"

Then use in config:

{
  "model": "gitlab/duo-chat-sonnet-4-5"
}

Self-hosted GitLab:

export GITLAB_INSTANCE_URL="https://gitlab.company.internal"
export GITLAB_TOKEN="glpat-xxxxxxxxxxxx"

Testing

All 619 existing tests pass
Added 8 provider-specific tests
Tested with GitLab.com and environment variable auth

Closes #7455

github-actions · 2026-01-08T12:55:52Z

The following comment was made by an LLM, it may be inaccurate:

No duplicate PRs found

vglafirov · 2026-01-08T13:10:13Z

Related PR to models.dev registry: anomalyco/models.dev#616

rekram1-node · 2026-01-09T06:53:55Z

/review

packages/opencode/src/provider/provider.ts

packages/opencode/src/plugin/index.ts

packages/opencode/src/provider/provider.ts

vglafirov · 2026-01-09T09:51:23Z

/review

vglafirov · 2026-01-09T10:00:56Z

Closes #7455

vglafirov · 2026-01-09T16:14:47Z

I am not sure why PR Standards check is failing. I've created an issue and linked it to this PR.

rekram1-node · 2026-01-12T18:02:04Z

@vglafirov apologies for delay I had this open on my computer but forgot to look at it

vglafirov · 2026-01-12T18:16:13Z

@rekram1-node You recently merged Gitlab Duo PR on models.dev, but deployment pipeline is failing. If we get models deployed on models.dev, I can remove models from https://github.com/anomalyco/opencode/pull/7333/changes#diff-b0155a9e5561043f50ba86bc54d5fd59aa528c7af7c92b2f37585d80e792cd9aR740

PR to fix deployment issues: anomalyco/models.dev#631

rekram1-node · 2026-01-13T05:30:41Z

Just address these and I will merge tmr morn! Once again sorry for delays our issue and pr volume has exploded

Feel free to DM or email me if needed

vglafirov · 2026-01-13T07:41:35Z

Can you link me to these packages you are adding? for some reason they aren't popping up when I try to search for them but that is likely me being an idiot

You are not an idiot. I have no idea why, but they are not popping up in a search, for some reason 😞 Here they are:

kamilchm · 2026-01-13T08:58:45Z

@vglafirov this is awesome — thanks for building it!
I have a self-hosted GitLab in my organization and would love to test the integration.
Is there any doc I should follow, or a quick minimal setup guide (env vars + callback URL/redirect URI + required scopes) to get it working?

vglafirov · 2026-01-13T09:20:17Z

@vglafirov this is awesome — thanks for building it! I have a self-hosted GitLab in my organization and would love to test the integration. Is there any doc I should follow, or a quick minimal setup guide (env vars + callback URL/redirect URI + required scopes) to get it working?

@kamilchm This PR contains documentation update: https://github.com/anomalyco/opencode/pull/7333/changes#diff-b5d5affc6941bf7bb19805cc8f556cd1b9ae73ffd99e520120700536b166f8c0

Also check published npm packages in comment above. They providing extensive documentation how to use this integration. Feel free to provide a feedback here or on repositories behind these npm packages. We haven't tested this on self-hosted instances yet, I am highly interesting to see if it works as expected. Thanks

kamilchm · 2026-01-13T09:22:24Z

Great, one more question: do I need snything special on the GitLab Server side? Version, features?

vglafirov · 2026-01-13T09:26:44Z

Great, one more question: do I need snything special on the GitLab Server side? Version, features?

If you have self-hosted Duo, then I guess nothing special is needed, if not: https://docs.gitlab.com/administration/gitlab_duo_self_hosted/

vglafirov · 2026-01-13T09:35:15Z

Can you link me to these packages you are adding? for some reason they aren't popping up when I try to search for them but that is likely me being an idiot

@rekram1-node I've fixed npmjs search problems. It was due to poor metadata. Packages are searcheble now :)

rekram1-node · 2026-01-13T16:26:24Z

Nice! let me review these packages and then I think this is basically good to go

@rekram1-node

Follow Copilot plugin pattern by removing @gitlab/opencode-gitlab-auth and @gitlab/opencode-gitlab-plugin from package.json dependencies. Plugins are now dynamically installed via BunProc.install() when GitLab is configured, matching the established pattern for opencode-copilot-auth and opencode-anthropic-auth. Changes: - Removed plugin packages from package.json dependencies - Pinned plugin versions (1.3.0 and 1.1.0) in auto-loading logic - Updated bun.lock to reflect dynamic installation approach - Kept @gitlab/gitlab-ai-provider as it's statically imported Addresses feedback from @rekram1-node on PR #7333

packages/opencode/src/plugin/index.ts

packages/opencode/src/provider/provider.ts

- Move @gitlab/[email protected] to BUILTIN array - Make @gitlab/[email protected] opt-in (not auto-loaded) - Remove custom GitLab plugin detection logic (~33 lines) - Simplify auth to use Auth.get() instead of manual parsing (~45 lines) - Add documentation for optional GitLab tools plugin - Update test mocks to handle versioned builtin plugins Net reduction: 63 lines (-99/+36) All 660 tests passing

vglafirov · 2026-01-13T19:14:12Z

@rekram1-node Refactored plugins loading. Please take a look again 🙏

rekram1-node · 2026-01-13T19:19:46Z

lookin

Co-authored-by: Aiden Cline <[email protected]> Co-authored-by: Aiden Cline <[email protected]>

Upstream changes: - feat: add plan mode with enter/exit tools (anomalyco#8281) - feat: Add GitLab Duo Agentic Chat Provider Support (anomalyco#7333) - feat(desktop): Ask Question Tool Support (anomalyco#8232) - feat: add Undertale and Deltarune built-in themes (anomalyco#8240) - fix: Add Plugin Mocks to Provider Tests (anomalyco#8276) - fix: update User-Agent string to latest Chrome version in webfetch (anomalyco#8284) - fix(prompt-input): handle Shift+Enter before IME check - fix(state): delete key from recordsByKey on instance disposal - fix(mcp): close existing client before reassignment to prevent leaks Resolved conflicts: - bun.lock: regenerated with fork dependencies - global-sync.tsx: adopted upstream variable naming (question instead of request) - session/index.tsx: merged upstream workdir display with fork's ANSI terminal emulation - amazon-bedrock.test.ts: added all mock modules (fork + upstream) - vscode/package.json: kept fork branding, updated version Fork commits included: - refactor(tui): use SDK client for tool list dialog - chore: update lockfile with fork dependencies

feat: Added GitLab Duo Agentic chat provider

af0394b

vglafirov mentioned this pull request Jan 8, 2026

feat: added GitLab Duo Agentic models anomalyco/models.dev#616

Merged