weichenandCursor
17f2a4ecfa
Why: token budget let the current tool batch run, compaction could split a tool pair or race an append, writes were not crash-atomic, and several MCP and session edges only existed as comments. Evidence: GOWORK=off go test -count=1 -race ./runtime/ ./runtime/llm/ ./runtime/session/ ./runtime/tools/ ./runtime/mcp/ ./adapters/native/ ./adapters/intentgate/ passed, including the TestR2* cases for budget, replacement, cancel, compaction, SSE, UTF-8, schema, MCP retry, session terminate, poison reload, and registry reload. Impact: over-budget tool calls are skipped and paired; Stop.Replacement is appended to the session; the intent gate can follow Registry.Reload. Refs: N5, N6, N7, N8, N9, N11, N12, N15, N16, N17, N18, N19, N21, I9 Co-authored-by: Cursor <cursoragent@cursor.com>
16 lines
314 B
Go
16 lines
314 B
Go
package tools
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import "unicode/utf8"
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// CutUTF8 按字节上限截断，并回退到完整 rune，避免切开 UTF-8。
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func CutUTF8(s string, maxBytes int) string {
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if maxBytes <= 0 || len(s) <= maxBytes {
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return s
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}
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end := maxBytes
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for end > 0 && !utf8.ValidString(s[:end]) {
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end--
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}
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return s[:end]
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}
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