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feat(providers/anthropic): prefix user content with sender name

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Sibling change to the anthropic_messages adapter, this time for the
SDK-based path that talks to the official Anthropic endpoint via
anthropic-sdk-go. The Messages API there is the same shape, so the
fix is identical: wrap user content with messageutil.ApplyUserNamePrefix
when the message carries Name attribution; tool result blocks pass
through unchanged.

The prefix is applied at marshal time only; the persisted message is
not mutated. Existing single-user / direct-channel flows are
unaffected because Name is empty there.

Existing provider tests continue to pass; behavior is exercised by
the messageutil unit tests (which cover ApplyUserNamePrefix
exhaustively) and the agent-level integration tests added earlier.

Refs #2702.
This commit is contained in:
maxiaoyang 2026-04-29 21:04:37 +08:00
parent f89b4cdf48
commit cd4372368e
1 changed files with 5 additions and 1 deletions
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6
pkg/providers/anthropic/provider.go
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@ -11,6 +11,7 @@ import (
"github.com/anthropics/anthropic-sdk-go/option"
"github.com/sipeed/picoclaw/pkg/providers/common"
"github.com/sipeed/picoclaw/pkg/providers/messageutil"
"github.com/sipeed/picoclaw/pkg/providers/protocoltypes"
)
@ -170,8 +171,11 @@ func buildParams(
anthropic.NewUserMessage(anthropic.NewToolResultBlock(msg.ToolCallID, msg.Content, false)),
)
} else {
// Anthropic has no per-message author identity; render any
// sender attribution as a `[name] ` prefix without mutating
// the persisted message.
anthropicMessages = append(anthropicMessages,
anthropic.NewUserMessage(anthropic.NewTextBlock(msg.Content)),
anthropic.NewUserMessage(anthropic.NewTextBlock(messageutil.ApplyUserNamePrefix(msg))),
)
}
case "assistant":