{"record":{"id":"006d5ca9208715f5","repo":"vxcontrol/pentagi","slug":"failed-to-stat-container-path-s-w","errorCode":null,"errorMessage":"failed to stat container path '%s': %w","messagePattern":"failed to stat container path '(.+?)': %w","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"backend/pkg/docker/client.go","lineNumber":973,"sourceCode":"\tFiles    []container.PathStat\n\tFailures []ContainerEntryError\n\t// Truncated is set when the directory held more than maxListEntries children\n\t// and only the first maxListEntries were listed.\n\tTruncated bool\n}\n\nfunc (dc *dockerClient) ListContainerDir(\n\tctx context.Context,\n\tcontainerID string,\n\tdirPath string,\n) (ContainerDirListing, error) {\n\tif strings.TrimSpace(dirPath) == \"\" {\n\t\tdirPath = WorkFolderPathInContainer\n\t}\n\n\tdirStat, err := dc.ContainerStatPath(ctx, containerID, dirPath)\n\tif err != nil {\n\t\treturn ContainerDirListing{}, fmt.Errorf(\"failed to stat container path '%s': %w\", dirPath, err)\n\t}\n\tif !dirStat.Mode.IsDir() {\n\t\treturn ContainerDirListing{}, fmt.Errorf(\"container path '%s' is not a directory\", dirPath)\n\t}\n\n\t// List direct children NUL-delimited. Parsing `ls` output is unsafe: under a\n\t// TTY GNU coreutils shell-quotes names and busybox wraps them in ANSI escapes,\n\t// so a readable file with a space / quote / non-ASCII byte would be mis-stat'd\n\t// and reported unreadable. `find -print0` emits literal bytes and is portable\n\t// (GNU + busybox); the NUL delimiter also survives names containing newlines.\n\t// No TTY: a TTY's onlcr would rewrite every \\n in the stream to \\r\\n —\n\t// including a \\n that is part of a filename — corrupting the name. Without a\n\t// TTY the exec stream is multiplexed and demuxed below.\n\tcreateResp, err := dc.ContainerExecCreate(ctx, containerID, client.ExecCreateOptions{\n\t\tCmd:          []string{\"find\", dirPath, \"-maxdepth\", \"1\", \"-mindepth\", \"1\", \"!\", \"-name\", \".*\", \"-print0\"},\n\t\tAttachStdout: true,\n\t\tAttachStderr: true,\n\t})","sourceCodeStart":955,"sourceCodeEnd":991,"githubUrl":"https://github.com/vxcontrol/pentagi/blob/ea665308baaff015b226f308438a68d929d0f29b/backend/pkg/docker/client.go#L955-L991","documentation":"ListContainerDir first stats the target directory inside the container; if ContainerStatPath fails, the error is wrapped with this message including the path that could not be stat'ed. Nothing was listed.","triggerScenarios":"dc.ContainerStatPath fails: the path does not exist inside the container, the container is not running, the container lacks the binaries needed to run the stat command, or command execution in the container failed (exec create/start error).","commonSituations":"Agent requests a path that was deleted or never created in the sandbox; container stopped/crashed before the listing; minimal images (distroless) where the exec shell/tooling is unavailable; typo'd or shell-quoted path coming from LLM tool arguments; wrong WorkFolderPathInContainer assumption for a custom image.","solutions":["Verify the container is running (`IsContainerRunning`) before listing","Confirm the path exists: `docker exec <id> ls -la <dir>` and correct the path argument","Check the image contains the utilities the stat implementation exec's; use a fuller base image if not","Normalize/trim the incoming dirPath (strip quotes, trailing slashes) before calling ListContainerDir"],"exampleFix":"// before\nlisting, err := c.ListContainerDir(ctx, containerID, dirPath)\n// after\nif strings.TrimSpace(dirPath) == \"\" {\n    dirPath = WorkFolderPathInContainer\n}\ndirPath = strings.Trim(dirPath, \"\\\"'\")\nlisting, err := c.ListContainerDir(ctx, containerID, dirPath)","handlingStrategy":"validation","validationCode":"func sanitizeDirPath(p string) string {\n    p = strings.TrimSpace(p)\n    p = strings.Trim(p, \"\\\"'\")\n    p = strings.TrimRight(p, \"/\")\n    if p == \"\" {\n        p = WorkFolderPathInContainer\n    }\n    return p\n}","typeGuard":null,"tryCatchPattern":"listing, err := c.ListContainerDir(ctx, id, dir)\nif err != nil {\n    if strings.Contains(err.Error(), \"failed to stat container path\") {\n        // surface the path back to the agent so it can correct it\n        return fmt.Errorf(\"path %q not accessible in container\", dir)\n    }\n    return err\n}","preventionTips":["Stat the path before listing when the origin is untrusted input","Use full base images (not distroless) for sandbox containers that exec commands","Check container liveness before filesystem operations","Normalize quotes/trailing slashes from LLM-generated path arguments"],"tags":["docker","filesystem","exec"],"backgroundTag":"container-path-stat-failed","analyzedSha":"ea665308baaff015b226f308438a68d929d0f29b","analyzedAt":"2026-09-01T14:16:31.421Z","contentChangedAt":null,"schemaVersion":2},"datasetVersion":"2026-09-08T10:18:20.063Z"}