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Verlorene Updates erkennen statt warten: optimistische Pruefung beim Ersetzen, Konflikte im Audit und im Lagebild (#720)

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FileLedger merkt je Agent die gelesene Fassung einer Datei in gemeinsamen
Bereichen. write, copy und Downloads (FTP, RocketChat) ersetzen eine Datei nur,
wenn sie seit dem Lesen unveraendert ist; eine fremde Datei nicht ungelesen.
append bleibt ungeprueft, macht aeltere Lesestaende aber ungueltig.
Abgelehnte Schreibvorgaenge: eigener Audit-Status Conflict, Tabelle
FileConflicts, Hotspots (>= 3 in 7 Tagen) in der Teamuebersicht.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
Richard
2026-09-28 10:45:46 +02:00
co-authored by Claude Opus 5.5
parent 8a7212c240
commit 79a3a7854f
21 changed files with 818 additions and 11 deletions
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src/ClawdDotNet.Tools.FTP/FtpTool.cs
+10
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@@ -317,10 +317,20 @@ public sealed class FTPTool : IAgentTool
{
var (localFull, wsLabel) = ResolveLocalPath(localRel, context, write: true);
// #720: a download over a shared file replaces it — not over a change this agent has not seen.
var guarded = wsLabel != WorkspaceLayout.Personal && context.Files is not null;
if (guarded && context.Files!.CheckReplace(context.AgentId, context.RunId, localFull, wsLabel, Core.Files.FileLedger.HashOf(localFull)) is { } conflict)
{
await context.Files.RecordAsync(conflict, ct);
return ToolResult.Conflict(conflict.Message(localRel));
}
var localDir = Path.GetDirectoryName(localFull);
if (localDir != null && !Directory.Exists(localDir)) Directory.CreateDirectory(localDir);
var status = await client.DownloadFile(localFull, remote, FtpLocalExists.Overwrite, FtpVerify.None, null, ct);
if (guarded && status == FtpStatus.Success)
context.Files!.NoteReplace(context.AgentId, context.RunId, localFull, Core.Files.FileLedger.HashOf(localFull));
return status == FtpStatus.Success
? ToolResult.Ok($"[{wsLabel} Workspace] File successfully downloaded: {remote} → {localRel}")
: ToolResult.Fail($"Download failed: {status}");