# Revision: Cheat Sheet and Self-Check — Advanced Agent Workflows and Skills

Source: https://www.geekswithgeeks.com/en/agent-workflows/wrap-revision

> Review the patterns, tools and safety habits from the whole course.

## Cheat sheet

**Patterns**: chain, route, parallelise, orchestrate, evaluate-and-refine; start simple. **Skills**: SKILL.md with a sharp description, scripts for exact work. **Subagents**: isolate noisy work, give minimal tools. **Context**: keep it small, use `CLAUDE.md` and progress files. **Hooks**: enforce rules as code. **Safety**: least privilege, distrust inputs, step and cost limits, human checkpoints. **Quality**: verification commands and evals.

## Questions interviewers ask

Be ready to explain: workflow versus agent and when each fits, why a hook is stronger than a prompt rule, what progressive disclosure means for skills, how a subagent protects context, and how you would stop a runaway loop.

**Quiz:** A rule must never be broken, such as "do not push to main". What enforces it best?

- [ ] A polite line in the prompt
- [x] A hook or permission rule that blocks it
- [ ] Hoping the model remembers
- [ ] A longer CLAUDE.md

*Answer:* A hook or permission rule that blocks it. Enforcement in code works even when the model forgets or is tricked.

**Quiz:** Which statement about subagents is correct?

- [ ] They share the main conversation's full memory
- [x] They work in their own context and return a summary
- [ ] They cannot use tools
- [ ] They always make tasks cheaper

*Answer:* They work in their own context and return a summary. Isolation is their purpose; they still cost tokens, so use them where it pays off.

**Quiz:** When should you add an agent loop instead of a fixed workflow?

- [ ] Always, as the first step
- [x] When steps cannot be predicted and simpler designs fall short
- [ ] When you want fewer tests
- [ ] When latency must be zero

*Answer:* When steps cannot be predicted and simpler designs fall short. Agents add cost and unpredictability, so use them only where flexibility is needed.