t3406: address remaining PR #191 review feedback

[marcusquinn]

Summary

• Harden MCP loading policy enforcement in the OpenCode generator by handling malformed MCP config entries defensively.
• Ensure OmO MCP tool patterns (grep_app_*, websearch_*, gh_grep_*) are always forced off globally, even on upgraded configs where they were previously true.
• Update @claude-code docs to match the current fork-based command and clarify tool naming plus nested-invocation cost impact.

Verification

• shellcheck .agents/scripts/generate-opencode-agents.sh (SC1091 info-only existing repo behavior)
• markdown-formatter lint .agents/tools/ai-assistants/claude-code.md
• bash .agents/scripts/generate-opencode-agents.sh

Closes #3406

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⚙️ Run configuration

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Run ID: 7a88fc1e-e8af-488a-a9a6-52b92d057eb4

📥 Commits

Reviewing files that changed from the base of the PR and between f90e5f7 and aee9ba5.

📒 Files selected for processing (2)

• .agents/scripts/generate-opencode-agents.sh
• .agents/tools/ai-assistants/claude-code.md

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch bugfix/t3406-pr191-review-feedback

📝 Coding Plan

• Generate coding plan for human review comments

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🔍 Code Quality Report

�[0;35m[MONITOR]�[0m Code Review Monitoring Report

�[0;34m[INFO]�[0m Latest Quality Status:
SonarCloud: 0 bugs, 0 vulnerabilities, 414 code smells

�[0;34m[INFO]�[0m Recent monitoring activity:
Fri Mar 13 23:53:58 UTC 2026: Code review monitoring started
Fri Mar 13 23:53:59 UTC 2026: SonarCloud - Bugs: 0, Vulnerabilities: 0, Code Smells: 414

📈 Current Quality Metrics

• BUGS: 0
• CODE SMELLS: 414
• VULNERABILITIES: 0

Generated on: Fri Mar 13 23:54:02 UTC 2026

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Generated by AI DevOps Framework Code Review Monitoring

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud