feat: default auto_mcp_discovery to true

[kulvirgit]

Summary

• Changes the auto_mcp_discovery Zod schema from .boolean().optional() to .boolean().default(true) so the config schema explicitly reflects the runtime default (discovery was already enabled unless explicitly set to false)
• Removes the redundant "(default: true)" note from the describe string since the schema now encodes it
• Fixes test typechecks by adding the now-required field to test experimental config objects

Test plan

• Verify bun turbo typecheck passes
• Confirm MCP auto-discovery still runs by default when auto_mcp_discovery is not set in config
• Confirm setting "auto_mcp_discovery": false disables discovery

🤖 Generated with Claude Code

Summary by CodeRabbit

• Configuration
  • Auto MCP discovery is now enabled by default. Explicitly disable it in configuration if preferred.

[claude]

Claude Code Review

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ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Repository UI

Review profile: CHILL

Plan: Pro

Run ID: cdb7e748-bb78-4293-9577-3f1a78b015db

📥 Commits

Reviewing files that changed from the base of the PR and between d19d813 and d8b6375.

📒 Files selected for processing (3)

• .opencode/opencode.jsonc
• packages/opencode/src/config/config.ts
• packages/opencode/test/tool/skill.test.ts

💤 Files with no reviewable changes (1)

• .opencode/opencode.jsonc

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📝 Walkthrough

Walkthrough

This change modifies the default behavior of auto MCP discovery by removing an explicit false setting from the config file and updating the schema to enforce a default value of true. The schema definition changes from optional to a boolean with a default, ensuring auto discovery is enabled unless explicitly disabled.

Changes

Cohort / File(s)	Summary
Config file cleanup .opencode/opencode.jsonc	Removed the explicit experimental.auto_mcp_discovery: false configuration block and its accompanying comments.
Schema default enforcement packages/opencode/src/config/config.ts	Updated experimental.auto_mcp_discovery schema from .optional() to .default(true), ensuring the property resolves to true when undefined. Updated descriptive text to reflect startup behavior without explicitly mentioning the default.
Test configuration updates packages/opencode/test/tool/skill.test.ts	Added explicit experimental.auto_mcp_discovery: true to test project configurations in two test cases to align with the new schema default behavior.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

Possibly related PRs

• feat: auto-discover MCP servers from external AI tool configs #311: Both PRs modify the experimental.auto_mcp_discovery flag—the related PR introduced the flag and conditional discovery logic, while this PR changes its schema default and removes explicit false configuration.

Poem

🐰 A discovery awaits, no longer locked away,
Auto MCP springs to life by default each day,
The config grows lighter, the schema more true,
Discovery enabled—let the magic brew! ✨

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly and concisely summarizes the main change: making auto_mcp_discovery default to true in the config schema.
Description check	✅ Passed	The description covers all required template sections with clear explanations of what changed, why, test plan details, and a checklist.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch feat/auto-mcp-discovery-default

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