Source Intelligence
Sweep 28 Aug 2026 · 00:00Z Build v2.1.250 478 read Stable v2.1.236 Latest v2.1.250 Next v2.1.251 Feeds RSS JSON llms.txt
Reading a new release v2.1.251 Analysing changes · 2/5 Sorting the findings · 1/4 steps 470 findings $18.91 so far

DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.

Search the documentation

2 pages for disable_prompt_caching_fable.

Titles and paths first, then pages whose text carries it. Each row opens that page as this site last read it.

Model configuration Claude Code CLI · in the page model-config …ing for Opus models only | | `DISABLE_PROMPT_CACHING_FABLE` | Set to `1` to disable prompt caching for Fable models only… How Claude Code uses prompt caching Claude Code CLI · in the page prompt-caching …ly | | `DISABLE_PROMPT_CACHING_OPUS` | Disable for Opus only | | `DISABLE_PROMPT_CACHING_FABLE` | Disable for Fable only | To set caching policy across an organization, put any of these or the…