`gj[ dZddlZddlmZmZmZddedededdfdZdededefd Z d e dee e ffd Z dd eee efd e dedeee effdZ y)uBAnthropic prompt caching strategy. Single layout: ``system_and_3``. 4 cache_control breakpoints — system prompt + last 3 non-system messages, all at the same TTL (5m or 1h). Reduces input token costs by ~75% on multi-turn conversations within a single session. Pure functions -- no class state, no AIAgent dependency. N)AnyDictListmsg cache_markernative_anthropicreturnc2|jdd}|jd}|dk(r|r||d<y||dk(r|dk(r|sy|dk(r|sy||d<yt|tr d||d g|d<yt|tr|r|d }t|tr||d<yyyy) zFAdd cache_control to a single message, handling all format variations.rolecontenttool cache_controlN assistanttext)typerr)get isinstancestrlistdict)rrrr r lasts G/root/.hermes/venv/lib/python3.12/site-packages/agent/prompt_caching.py_apply_cache_markerrs 7762 Dggi G v~* ,O'R- 6>"2  ; '7 +O'3W| L I '4 Wr{ dD !$0D ! "&- c|ry|jd}||dk(ryt|tr t|xrt|dtSt|t S)uTrue if a marker on this message is actually honored by the provider. On the native Anthropic layout every message works (top-level markers are relocated by the adapter). On the envelope layout (OpenRouter et al.) only markers inside content parts are honored: empty-content messages (e.g. assistant turns that are pure tool_calls) and empty tool messages would receive a top-level marker the provider ignores — wasting one of the four breakpoints. Skip those so the breakpoints land on messages that count. Tr r Fr)rrrboolrr)rrr s r_can_carry_markerr4sYggi G'R-'4 G}>GBK!>> gs ##rttlc"ddi}|dk(rd|d<|S)zCBuild a cache_control marker dict for the given TTL ('5m' or '1h').r ephemeral1hr )r markers r _build_markerr&Ls!$k2F d{u Mr api_messages cache_ttlctj|}|s|St|}d}|djddk(rt |d|||dz }d|z }t t |Dcgc]+}||jddk7rt|||r|-}}|| dD]} t || |||Scc}w)aApply system_and_3 caching strategy to messages for Anthropic models. Places up to 4 cache_control breakpoints: system prompt + last 3 non-system messages, all at the same TTL. Returns: Deep copy of messages with cache_control breakpoints injected. rr system)rN)copydeepcopyr&rrrangelenr) r'r(rmessagesr%breakpoints_used remaininginon_sysidxs rapply_anthropic_cache_controlr7Ts}}\*H  9 %F{v(*HQKBRSA$$Is8}% A;??6 "h . hqkr;s """1T"1"1"1Z^"1J$4$4$D$0stCH~"#tCH~&### $sCx. #r