Claude Code Guide - Setup, Commands, workflows, agents, skills & tips-n-tricks from beginner to power user!
Agent Claude Code
Use when requirements, an approved design, or a root cause are clear and one scoped, complete implementation is authorized. Do not use for unresolved exploration, product decisions, diagnosis-only work, or review-only requests.
Agent Claude Code
Use proactively after an implementation or when an existing diff needs correctness, regression, concurrency, compatibility, and meaningful verification review. Do not use for implementation or a dedicated exploitability assessment.
Agent Claude Code
Use proactively when a task needs local repository structure, entry points, ownership, data flow, or change-surface mapping before a decision. Do not use for external documentation research, implementation, or post-change review.
Agent Claude Code
Use proactively when a decision depends on current official documentation, release notes, schemas, supported models, APIs, or version-specific behavior. Do not use when the primary work is tracing local code or implementing a change.
Agent Claude Code
Use proactively when a failure must be reproduced, isolated, and causally explained before a fix is written. Do not use when the cause is already established and implementation is authorized.
Agent Claude Code
Use after a completed change when acceptance criteria must be exercised through the real user-facing, CLI, service, browser, filesystem, or integration boundary. Do not use to implement fixes or when the change is incomplete.
Agent Claude Code
Use proactively when attacker-controlled input, trust boundaries, authorization decisions, sensitive sinks, secrets, or security-impacting changes require exploitability analysis. Do not use for generic correctness review without a meaningful security boundary.
Agent Claude Code
Use when established requirements and evidence leave multiple viable designs or cross-component boundaries that need explicit trade-offs before implementation. Do not use for a small specified fix or while the root cause is still unknown.