6 hacks
Use /effort (low→max) or CLAUDE_CODE_EFFORT_LEVEL so simple edits stay cheap and hard debugging gets deeper reasoning without paying max on every prompt.
Inspect `/usage` (alias `/cost`) for per-skill, subagent, and MCP breakdowns, then cut the expensive outliers.
Cycle into plan mode (Shift+Tab) so Claude explores and proposes an approach for approval before editing.
Shift specialized playbooks into on-demand skills so every session does not pay for instructions you rarely need.
Turn off MCP servers unrelated to the current project—their tool schemas still consume context at session start.
Add a top-level cache_control ephemeral flag so growing conversation prefixes reuse cached tokens and cut API cost and latency.