[uni-mike]

Summary

• Preserve MCP tool display titles from tools/list when converting MCP tools to AI SDK tools
• Use the preserved title when completing MCP tool calls so CLI/TUI output does not show Unknown
• Falls back to tool.title, then tool.annotations.title, then the MCP tool name

Motivation

OpenCode currently renders successful MCP calls as:

⚙ pekg_status Unknown

even when the MCP server returns:

{ "name": "status", "title": "PeKG Status", "annotations": { "title": "PeKG Status" } }

MCP tool definitions support title as the human-readable display name, so the completed tool part should use it instead of an empty title.

Fixes #26044.

Testing

• Not run locally: this environment does not have bun installed, so bun run --cwd packages/opencode typecheck could not execute.
• Patch is limited to preserving title metadata and using it in the existing MCP output object.

[github-actions]

Hey! Your PR title Fix MCP tool display titles doesn't follow conventional commit format.

Please update it to start with one of:

• feat: or feat(scope): new feature
• fix: or fix(scope): bug fix
• docs: or docs(scope): documentation changes
• chore: or chore(scope): maintenance tasks
• refactor: or refactor(scope): code refactoring
• test: or test(scope): adding or updating tests

Where scope is the package name (e.g., app, desktop, opencode).

See CONTRIBUTING.md for details.

[github-actions]

This PR doesn't fully meet our contributing guidelines and PR template.

What needs to be fixed:

• PR description is missing required template sections. Please use the PR template.

Please edit this PR description to address the above within 2 hours, or it will be automatically closed.

If you believe this was flagged incorrectly, please let a maintainer know.

[github-actions]

This pull request has been automatically closed because it was not updated to meet our contributing guidelines within the 2-hour window.

Feel free to open a new pull request that follows our guidelines.