Claude Plugins — Automate Your Business Processes

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Course content

6.2 Lessons from Practice -- What Worked and What Did Not

Lessons from Practice

What worked and what did not in real plugin development

Theory is clean. Practice is messy. After building and deploying plugins in real business environments, clear patterns emerge about what succeeds and what fails.

What Worked

Small, Focused Plugins

Plugins that solve one specific problem are easier to build, test, debug, and maintain than multi-purpose tools.

Reference Files

Keeping domain knowledge in reference files instead of hardcoding it into logic makes plugins adaptable and reusable.

Incremental Rollout

Deploying to one workflow first, collecting feedback, then expanding prevents large-scale failures.

What Did Not Work

Over-Engineering

Building complex plugins with many features before validating the core use case wastes time and creates fragile systems.

Skipping Error Handling

Plugins that assume perfect inputs fail in production. Every external call needs timeout and retry logic.

No Documentation

Plugins without clear SKILL.md files become unusable by anyone except the original author within weeks.

Practical Guidelines

✓Keep each plugin under 200 lines of core logic

✓Always include a SKILL.md with trigger, inputs, outputs, and examples

✓Test with real data before deploying, not just sample inputs

✓Log every decision the plugin makes for debugging later

✓Plan for the plugin to fail and define recovery behavior

The Maintenance Trap

A plugin you do not maintain will break. Schedule monthly reviews to check for API changes, data format shifts, and new edge cases.

Key Takeaway

The best plugins are born from real problems, built simply, and improved continuously. Resist complexity — simplicity is the ultimate reliability.