14 Cache-Breaking Vectors
- Entity ID:
ent-20260419-1b3359938871 - Type:
concept - Scope:
shared - Status:
active - Aliases: cache fragility map, Blake Crosley cache vectors
Description
Enumerated list of 14 events that invalidate the prompt cache: CLAUDE.md mid-session edit, hook-injected system prompt, MCP tool schema change, session resume with different tools, custom instructions change, mid-session model switch, external memory file edits, workspace trust change, API key rotation, org change, feature-flag change (60-min GrowthBook poll), oversized file reads, compaction events, and cc:// session handoff.
Key claims
- 14 vectors break the prompt cache
Relations
- 14 Cache-Breaking Vectors --[contains]--> Prompt Cache Section Registry
- Blake Crosley Cache Fragility Analysis --[summarizes]--> 14 Cache-Breaking Vectors