Anthropic Python SDK 1.5.0 release notes

Full Changelog: v1.4.0...v1.5.0

api: add auto mode tool permissions for Managed Agents (62aa21b)
api: add content_too_large web_fetch tool error code (4b5dec6)
api: add the user-profiles-2026-09-04 beta value and external_user_details to user profiles (5f881a5)
api: support mounting public GitHub repositories without an authorization_token in Managed Agents sessions (285937c)
client: add Message.to_param() and BetaMessage.to_param() (192a2b2)
credentials: add CredentialsError and IdentityTokenFileError (9acd79f)
tools: accept tool objects directly in messages.create, parse, stream and count_tokens (ebd2fc5)

client: merge extra_body before client hooks run (7aaf887)
credentials: refuse credentials files accessible by group or others (7af3e2b)
streaming: keep partial tool input JSON off content blocks (4605bca)
types: leave parsed_output out of dumped text blocks (ca0706d)

client: clean up the unused idempotency request option (c97830c)
client: keep the idempotency_key request option as a deprecated no-op (#621) (c2ab92e)
docs: correct the environment scope field description (b903ee0)
internal: remove generated file header comments (ae671f8)
internal: restore package version (f3aefc7)
internal: restore package version (e3c70e8)
internal: stop stamping the package version into generated files (e7a6a28)
tests: restore empty test package marker files (0803af0)