entropic::Gemma4Adapter Class Reference

Fallback adapter for Gemma-4 tiers; owns the <|channel> markers. More...

#include </home/runner/work/entropic/entropic/src/inference/adapters/gemma4_adapter.h>

Inheritance diagram for entropic::Gemma4Adapter:

Collaboration diagram for entropic::Gemma4Adapter:

Public Member Functions
std::string	chat_format () const override
	Chat format identifier.
ThinkMarkers	thinking_markers () const override
	Gemma-4 QAT reasoning delimiters.
ParseResult	parse_tool_calls (const std::string &content) const override
	Fallback parse for when no common_chat arena is available.
	ChatAdapter (std::string tier_name, std::string identity_prompt)
	Construct adapter with tier identity.
Public Member Functions inherited from entropic::ChatAdapter
	ChatAdapter (std::string tier_name, std::string identity_prompt)
	Construct adapter with tier identity.
std::string	strip_think_blocks (const std::string &content) const
	Strip this family's reasoning blocks from content (gh#108).
virtual Message	format_tool_result (const ToolCall &tool_call, const std::string &result) const
	Format a tool result as a user message.
virtual std::string	format_tools (const std::vector< std::string > &tool_jsons) const
	Format tool definitions for injection into system prompt.
bool	is_response_complete (const std::string &content, const std::vector< ToolCall > &tool_calls) const
	Check if response represents task completion.
virtual std::string	format_system_with_vision (const std::string &base_system, bool has_vision) const
	Format system prompt with optional vision context.
virtual std::string	format_content_parts (const std::vector< ContentPart > &parts) const
	Convert multimodal content parts to adapter-specific format.

Additional Inherited Members
Protected Member Functions inherited from entropic::ChatAdapter
std::vector< ToolCall >	parse_tagged_tool_calls (const std::string &content) const
	Parse <tool_call>JSON</tool_call> tagged blocks.
std::optional< ToolCall >	try_recover_json (const std::string &json_str) const
	Attempt JSON recovery on malformed tool call string.
std::optional< ToolCall >	parse_single_tool_call (const std::string &json_str) const
	Parse a single JSON tool call string.
Protected Attributes inherited from entropic::ChatAdapter
std::string	tier_name_
	Identity tier name.
std::string	identity_prompt_
	Assembled identity prompt.
std::unordered_set< std::string >	tool_prefixes_
	Known tool prefixes.

Detailed Description

Fallback adapter for Gemma-4 tiers; owns the <|channel> markers.

Version

2.10.3

Definition at line 38 of file gemma4_adapter.h.

Member Function Documentation

chat_format()

std::string entropic::Gemma4Adapter::chat_format ( ) const

inlineoverridevirtual

Chat format identifier.

Returns

The string "gemma4". @utility

Version

2.10.3

Implements entropic::ChatAdapter.

Definition at line 48 of file gemma4_adapter.h.

ChatAdapter()

entropic::ChatAdapter::ChatAdapter	(	std::string	tier_name,
		std::string	identity_prompt
	)

Construct adapter with tier identity.

Parameters

tier_name	Identity tier (e.g. "eng", "lead").
identity_prompt	Assembled identity prompt.

Version

1.8.2

Parameters

tier_name	Identity tier name.
identity_prompt	Assembled identity prompt.

Version

1.8.2

Definition at line 137 of file adapter_base.cpp.

parse_tool_calls()

ParseResult entropic::Gemma4Adapter::parse_tool_calls ( const std::string &  content ) const

overridevirtual

Fallback parse for when no common_chat arena is available.

Parameters

content

Raw model output.

Returns

ParseResult with reasoning stripped and any tool calls found.

Version

2.10.3

Reasoning removal comes from the base marker-driven strip, which reads thinking_markers() — the whole reason this class exists.

For tool calls this reuses the base bare-JSON recovery rather than adding a hand-rolled Gemma grammar: PEG_GEMMA4 stays primary whenever a tooled render captured an arena, and a toolless call has no staged tools to invoke in the first place, so the realistic yield here is zero calls plus clean content. recover_action_envelope_calls still covers the gh#88 case where a primed model parrots a {"action":...} envelope.

Parameters

content

Raw model output.

Returns

ParseResult. @dg_internal

Version

2.10.3

Implements entropic::ChatAdapter.

Definition at line 30 of file gemma4_adapter.cpp.

thinking_markers()

ThinkMarkers entropic::Gemma4Adapter::thinking_markers ( ) const

inlineoverridevirtual

Gemma-4 QAT reasoning delimiters.

Note the close marker is <channel|>, not a mirrored </|channel> — matching the live emission and strip_thinking_channels, whose behaviour this consolidates.

Declared once here and read by both consumers: the buffered strip (ChatAdapter::strip_think_blocks) and the live StreamThinkFilter that wraps on_token in generate_streaming.

Returns

{"<|channel>", "<channel|>"}. @req REQ-INFER-011

Version

2.10.3

Reimplemented from entropic::ChatAdapter.

Definition at line 65 of file gemma4_adapter.h.

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The documentation for this class was generated from the following files:

• inference/adapters/gemma4_adapter.h
• inference/adapters/gemma4_adapter.cpp