What's Changed
- feat(mcp): preserve CallToolResult.isError flag in MCPToolResult by @Zelys-DFKH in #2118
- feat: add
count_tokenmethod to model with naive estimation using tiktoken by @lizradway in #2031 - chore(log): added warning for default model awareness and is subject to change by @poshinchen in #2164
- fix(litellm): forward ttl field from CachePoint in _format_system_messages by @ElliottJW in #2153
- fix(skills): preserve cache points in system prompt during skills inj… by @mattdai01 in #2134
- fix(ollama): generate unique toolUseId instead of reusing tool name by @Ratansairohith in #2053
- feat(cache): add TTL support to CachePoint for prompt caching by @kpx-dev in #1660
- fix: use non-interactive flag for Nova Sonic history and system promp… by @prettyprettyprettygood in #2188
- ci: update litellm requirement from <=1.82.6,>=1.75.9 to >=1.75.9,<=1.83.13 by @dependabot[bot] in #2197
- ci: update pre-commit requirement from <4.6.0,>=3.2.0 to >=3.2.0,<4.7.0 by @dependabot[bot] in #2185
- feat: large tool result offload by @lizradway in #2162
- feat: override count_tokens with native token counting for supported providers by @opieter-aws in #2189
- fix(bedrock): upgrade default model to Claude Sonnet 4.5 by @afarntrog in #2193
- chore: update style guide for tool spec navigation by @lizradway in #2203
- feat: add ProviderTokenCountError for native token counting failures by @opieter-aws in #2211
- fix(conversation-manager): handle window_size=0 and reject negative values by @SuperMarioYL in #2208
- fix: change token counting fallback log from warning to debug by @opieter-aws in #2220
- fix: do not synthesize exception for cancelled tools by @Gastly in #2106
- feat: estimate input tokens before model calls by @opieter-aws in #2221
- feat(offloader): return explicit paths in preview and auto-enable retrieval by @lizradway in #2222
- fix: update tests to use non-EOL'd model by @zastrowm in #2226
- feat(bedrock): add strict_tools config with auto-inject of additional… by @kaghatim in #2213
New Contributors
- @Zelys-DFKH made their first contribution in #2118
- @ElliottJW made their first contribution in #2153
- @Ratansairohith made their first contribution in #2053
- @kpx-dev made their first contribution in #1660
- @prettyprettyprettygood made their first contribution in #2188
- @SuperMarioYL made their first contribution in #2208
- @Gastly made their first contribution in #2106
- @kaghatim made their first contribution in #2213
Full Changelog: v1.37.0...v1.38.0