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fix: sanitize tool_use.id to comply with Claude API regex ^[a-zA-Z0-9_-]+$

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Add util.SanitizeClaudeToolID() to replace non-conforming characters in
tool_use.id fields across all five response translators (gemini, codex,
openai, antigravity, gemini-cli).

Upstream tool names may contain dots or other special characters
(e.g. "fs.readFile") that violate Claude's ID validation regex.
The sanitizer replaces such characters with underscores and provides
a generated fallback for empty IDs.

Fixes #1872, Fixes #1849

Made-with: Cursor
This commit is contained in:
Xu Hong
2026-03-06 00:10:09 +08:00
parent cc8dc7f62c
commit 553d6f50ea
6 changed files with 37 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
internal/translator/antigravity/claude/antigravity_claude_response.go
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@@ -15,6 +15,7 @@ import (
"time"
"github.com/router-for-me/CLIProxyAPI/v6/internal/cache"
"github.com/router-for-me/CLIProxyAPI/v6/internal/util"
log "github.com/sirupsen/logrus"
"github.com/tidwall/gjson"
@@ -256,7 +257,7 @@ func ConvertAntigravityResponseToClaude(_ context.Context, _ string, originalReq
// Create the tool use block with unique ID and function details
data := fmt.Sprintf(`{"type":"content_block_start","index":%d,"content_block":{"type":"tool_use","id":"","name":"","input":{}}}`, params.ResponseIndex)
data, _ = sjson.Set(data, "content_block.id", fmt.Sprintf("%s-%d-%d", fcName, time.Now().UnixNano(), atomic.AddUint64(&toolUseIDCounter, 1)))
data, _ = sjson.Set(data, "content_block.id", util.SanitizeClaudeToolID(fmt.Sprintf("%s-%d-%d", fcName, time.Now().UnixNano(), atomic.AddUint64(&toolUseIDCounter, 1))))
data, _ = sjson.Set(data, "content_block.name", fcName)
output = output + fmt.Sprintf("data: %s\n\n\n", data)

5
internal/translator/codex/claude/codex_claude_response.go
View File

@@ -12,6 +12,7 @@ import (
"fmt"
"strings"
"github.com/router-for-me/CLIProxyAPI/v6/internal/util"
"github.com/tidwall/gjson"
"github.com/tidwall/sjson"
)
@@ -141,7 +142,7 @@ func ConvertCodexResponseToClaude(_ context.Context, _ string, originalRequestRa
(*param).(*ConvertCodexResponseToClaudeParams).HasReceivedArgumentsDelta = false
template = `{"type":"content_block_start","index":0,"content_block":{"type":"tool_use","id":"","name":"","input":{}}}`
template, _ = sjson.Set(template, "index", (*param).(*ConvertCodexResponseToClaudeParams).BlockIndex)
template, _ = sjson.Set(template, "content_block.id", itemResult.Get("call_id").String())
template, _ = sjson.Set(template, "content_block.id", util.SanitizeClaudeToolID(itemResult.Get("call_id").String()))
{
// Restore original tool name if shortened
name := itemResult.Get("name").String()
@@ -310,7 +311,7 @@ func ConvertCodexResponseToClaudeNonStream(_ context.Context, _ string, original
}
toolBlock := `{"type":"tool_use","id":"","name":"","input":{}}`
toolBlock, _ = sjson.Set(toolBlock, "id", item.Get("call_id").String())
toolBlock, _ = sjson.Set(toolBlock, "id", util.SanitizeClaudeToolID(item.Get("call_id").String()))
toolBlock, _ = sjson.Set(toolBlock, "name", name)
inputRaw := "{}"
if argsStr := item.Get("arguments").String(); argsStr != "" && gjson.Valid(argsStr) {

3
internal/translator/gemini-cli/claude/gemini-cli_claude_response.go
View File

@@ -14,6 +14,7 @@ import (
"sync/atomic"
"time"
"github.com/router-for-me/CLIProxyAPI/v6/internal/util"
"github.com/tidwall/gjson"
"github.com/tidwall/sjson"
)
@@ -209,7 +210,7 @@ func ConvertGeminiCLIResponseToClaude(_ context.Context, _ string, originalReque
// Create the tool use block with unique ID and function details
data := fmt.Sprintf(`{"type":"content_block_start","index":%d,"content_block":{"type":"tool_use","id":"","name":"","input":{}}}`, (*param).(*Params).ResponseIndex)
data, _ = sjson.Set(data, "content_block.id", fmt.Sprintf("%s-%d-%d", fcName, time.Now().UnixNano(), atomic.AddUint64(&toolUseIDCounter, 1)))
data, _ = sjson.Set(data, "content_block.id", util.SanitizeClaudeToolID(fmt.Sprintf("%s-%d-%d", fcName, time.Now().UnixNano(), atomic.AddUint64(&toolUseIDCounter, 1))))
data, _ = sjson.Set(data, "content_block.name", fcName)
output = output + fmt.Sprintf("data: %s\n\n\n", data)

4
internal/translator/gemini/claude/gemini_claude_response.go
View File

@@ -224,7 +224,7 @@ func ConvertGeminiResponseToClaude(_ context.Context, _ string, originalRequestR
// Create the tool use block with unique ID and function details
data := fmt.Sprintf(`{"type":"content_block_start","index":%d,"content_block":{"type":"tool_use","id":"","name":"","input":{}}}`, (*param).(*Params).ResponseIndex)
data, _ = sjson.Set(data, "content_block.id", fmt.Sprintf("%s-%d", upstreamToolName, atomic.AddUint64(&toolUseIDCounter, 1)))
data, _ = sjson.Set(data, "content_block.id", util.SanitizeClaudeToolID(fmt.Sprintf("%s-%d", upstreamToolName, atomic.AddUint64(&toolUseIDCounter, 1))))
data, _ = sjson.Set(data, "content_block.name", clientToolName)
output = output + fmt.Sprintf("data: %s\n\n\n", data)
@@ -343,7 +343,7 @@ func ConvertGeminiResponseToClaudeNonStream(_ context.Context, _ string, origina
clientToolName := util.MapToolName(toolNameMap, upstreamToolName)
toolIDCounter++
toolBlock := `{"type":"tool_use","id":"","name":"","input":{}}`
toolBlock, _ = sjson.Set(toolBlock, "id", fmt.Sprintf("%s-%d", upstreamToolName, toolIDCounter))
toolBlock, _ = sjson.Set(toolBlock, "id", util.SanitizeClaudeToolID(fmt.Sprintf("%s-%d", upstreamToolName, toolIDCounter)))
toolBlock, _ = sjson.Set(toolBlock, "name", clientToolName)
inputRaw := "{}"
if args := functionCall.Get("args"); args.Exists() && gjson.Valid(args.Raw) && args.IsObject() {

8
internal/translator/openai/claude/openai_claude_response.go
View File

@@ -243,7 +243,7 @@ func convertOpenAIStreamingChunkToAnthropic(rawJSON []byte, param *ConvertOpenAI
// Send content_block_start for tool_use
contentBlockStartJSON := `{"type":"content_block_start","index":0,"content_block":{"type":"tool_use","id":"","name":"","input":{}}}`
contentBlockStartJSON, _ = sjson.Set(contentBlockStartJSON, "index", blockIndex)
contentBlockStartJSON, _ = sjson.Set(contentBlockStartJSON, "content_block.id", accumulator.ID)
contentBlockStartJSON, _ = sjson.Set(contentBlockStartJSON, "content_block.id", util.SanitizeClaudeToolID(accumulator.ID))
contentBlockStartJSON, _ = sjson.Set(contentBlockStartJSON, "content_block.name", accumulator.Name)
results = append(results, "event: content_block_start\ndata: "+contentBlockStartJSON+"\n\n")
}
@@ -414,7 +414,7 @@ func convertOpenAINonStreamingToAnthropic(rawJSON []byte) []string {
if toolCalls := choice.Get("message.tool_calls"); toolCalls.Exists() && toolCalls.IsArray() {
toolCalls.ForEach(func(_, toolCall gjson.Result) bool {
toolUseBlock := `{"type":"tool_use","id":"","name":"","input":{}}`
toolUseBlock, _ = sjson.Set(toolUseBlock, "id", toolCall.Get("id").String())
toolUseBlock, _ = sjson.Set(toolUseBlock, "id", util.SanitizeClaudeToolID(toolCall.Get("id").String()))
toolUseBlock, _ = sjson.Set(toolUseBlock, "name", toolCall.Get("function.name").String())
argsStr := util.FixJSON(toolCall.Get("function.arguments").String())
@@ -612,7 +612,7 @@ func ConvertOpenAIResponseToClaudeNonStream(_ context.Context, _ string, origina
toolCalls.ForEach(func(_, tc gjson.Result) bool {
hasToolCall = true
toolUse := `{"type":"tool_use","id":"","name":"","input":{}}`
toolUse, _ = sjson.Set(toolUse, "id", tc.Get("id").String())
toolUse, _ = sjson.Set(toolUse, "id", util.SanitizeClaudeToolID(tc.Get("id").String()))
toolUse, _ = sjson.Set(toolUse, "name", util.MapToolName(toolNameMap, tc.Get("function.name").String()))
argsStr := util.FixJSON(tc.Get("function.arguments").String())
@@ -669,7 +669,7 @@ func ConvertOpenAIResponseToClaudeNonStream(_ context.Context, _ string, origina
toolCalls.ForEach(func(_, toolCall gjson.Result) bool {
hasToolCall = true
toolUseBlock := `{"type":"tool_use","id":"","name":"","input":{}}`
toolUseBlock, _ = sjson.Set(toolUseBlock, "id", toolCall.Get("id").String())
toolUseBlock, _ = sjson.Set(toolUseBlock, "id", util.SanitizeClaudeToolID(toolCall.Get("id").String()))
toolUseBlock, _ = sjson.Set(toolUseBlock, "name", util.MapToolName(toolNameMap, toolCall.Get("function.name").String()))
argsStr := util.FixJSON(toolCall.Get("function.arguments").String())

24
internal/util/claude_tool_id.go Normal file
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@@ -0,0 +1,24 @@
package util
import (
"fmt"
"regexp"
"sync/atomic"
"time"
)
var (
claudeToolUseIDSanitizer = regexp.MustCompile(`[^a-zA-Z0-9_-]`)
claudeToolUseIDCounter uint64
)
// SanitizeClaudeToolID ensures the given id conforms to Claude's
// tool_use.id regex ^[a-zA-Z0-9_-]+$. Non-conforming characters are
// replaced with '_'; an empty result gets a generated fallback.
func SanitizeClaudeToolID(id string) string {
s := claudeToolUseIDSanitizer.ReplaceAllString(id, "_")
if s == "" {
s = fmt.Sprintf("toolu_%d_%d", time.Now().UnixNano(), atomic.AddUint64(&claudeToolUseIDCounter, 1))
}
return s
}