Package a repeatable change with precise tools
Every sprint the service desk asks Hana for one more ticket field, and the first Claude Code attempt reads twenty files and edits the wrong occurrence. Decide what deserves a reusable skill, write it where the team gets it with declared arguments, pre-approved and disallowed tools and a forked context, and pick the precise tool for each question: Grep for contents, Glob for file names, Read for the needed sections and Edit with a unique anchor, with the three documented options when the anchor isn't unique. Original HarborWorks case aligned to Claude Certified Architect – Foundations tasks 2.5 and 3.2 (July 2026 v1.0 guide).
Independent exam preparation, not affiliated with or endorsed by Anthropic; personal views, no employer endorsement. Original examples only, no actual exam items, no credential guarantee.
These episodes cover selected decisions, not complete track coverage. Guide alignment uses the captured July 2026 v1.0 guide; check current official guidance before exam planning or implementation.
Public source credits:
- Claude Certified Architect – Foundations Exam Guide, July 2026 v1.0
- Use Skills in Claude Code
- Claude Code tools reference
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