{"record":{"id":"fefcc19e3702d84d","repo":"chenhg5/cc-connect","slug":"parse-auth-json-w","errorCode":null,"errorMessage":"parse auth.json: %w","messagePattern":"parse auth\\.json: %w","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"agent/codex/usage.go","lineNumber":78,"sourceCode":"\nfunc (a *Agent) readOAuthTokens(readFile func(string) ([]byte, error)) (codexOAuthTokens, error) {\n\tpath, err := codexAuthPath()\n\tif err != nil {\n\t\treturn codexOAuthTokens{}, err\n\t}\n\tdata, err := readFile(path)\n\tif err != nil {\n\t\treturn codexOAuthTokens{}, fmt.Errorf(\"read %s: %w\", path, err)\n\t}\n\n\tvar payload struct {\n\t\tTokens struct {\n\t\t\tAccessToken string `json:\"access_token\"`\n\t\t\tAccountID   string `json:\"account_id\"`\n\t\t} `json:\"tokens\"`\n\t}\n\tif err := json.Unmarshal(data, &payload); err != nil {\n\t\treturn codexOAuthTokens{}, fmt.Errorf(\"parse auth.json: %w\", err)\n\t}\n\tif strings.TrimSpace(payload.Tokens.AccessToken) == \"\" {\n\t\treturn codexOAuthTokens{}, fmt.Errorf(\"auth.json missing tokens.access_token\")\n\t}\n\tif strings.TrimSpace(payload.Tokens.AccountID) == \"\" {\n\t\treturn codexOAuthTokens{}, fmt.Errorf(\"auth.json missing tokens.account_id\")\n\t}\n\n\treturn codexOAuthTokens{\n\t\tAccessToken: payload.Tokens.AccessToken,\n\t\tAccountID:   payload.Tokens.AccountID,\n\t}, nil\n}\n\nfunc (a *Agent) fetchUsage(ctx context.Context, client *http.Client, tokens codexOAuthTokens) (*core.UsageReport, error) {\n\treq, err := http.NewRequestWithContext(ctx, http.MethodGet, codexUsageURL, nil)\n\tif err != nil {\n\t\treturn nil, err","sourceCodeStart":60,"sourceCodeEnd":96,"githubUrl":"https://github.com/chenhg5/cc-connect/blob/4000b2338aa6e850c99df54f8b0ed6ed7460b401/agent/codex/usage.go#L60-L96","documentation":"After reading auth.json, readOAuthTokens unmarshals the bytes into a struct expecting {\"tokens\":{\"access_token\":...,\"account_id\":...}}. This error wraps the json.Unmarshal failure, so the cause carries the exact JSON syntax problem (offset, unexpected token, type mismatch). It is thrown whenever the file exists but is not valid JSON matching the expected shape.","triggerScenarios":"json.Unmarshal(data, &payload) returns an error inside readOAuthTokens, e.g. auth.json contains truncated content, invalid JSON syntax, or a top-level JSON array/string instead of an object. Callers: GetUsage and the InvalidJSON test.","commonSituations":"auth.json corrupted by a partial write or disk-full during `codex login`; file manually edited and syntax broken; another tool overwrote auth.json with a different format; encoding issues (BOM) after editing on Windows.","solutions":["Re-run `codex login` to regenerate a valid auth.json","Validate the file: `python3 -m json.tool ~/.codex/auth.json` to see the syntax error","Restore from backup or re-copy the auth.json from the machine where Codex was logged in","Check for editors/scripts that may have mangled the file (BOM, truncation)"],"exampleFix":"// before\n// silently ignores malformed auth.json until GetUsage fails\nusage, err := agent.GetUsage(ctx)\n// after: pre-validate JSON before calling\nvar probe map[string]any\nif err := json.Unmarshal(authBytes, &probe); err != nil {\n    log.Fatalf(\"auth.json is not valid JSON: %v — run `codex login`\", err)\n}\nusage, err := agent.GetUsage(ctx)","handlingStrategy":"validation","validationCode":"var probe any\nif err := json.Unmarshal(b, &probe); err != nil { return fmt.Errorf(\"auth.json is not valid JSON: %w\", err) }","typeGuard":null,"tryCatchPattern":"if err := json.Unmarshal(data, &payload); err != nil {\n    var je *json.SyntaxError\n    if errors.As(err, &je) { return fmt.Errorf(\"auth.json invalid at offset %d: %v\", je.Offset, je) }\n    return fmt.Errorf(\"auth.json unreadable, re-run `codex login`: %w\", err)\n}","preventionTips":["Never hand-edit auth.json; regenerate via `codex login`","Validate JSON after copying auth.json between machines (`python3 -m json.tool`)","Watch for editors introducing BOM/truncation","Back up auth.json before Codex CLI upgrades"],"tags":["go","json","codex","oauth"],"backgroundTag":"json-unmarshal-failed","analyzedSha":"4000b2338aa6e850c99df54f8b0ed6ed7460b401","analyzedAt":"2026-09-06T11:45:09.575Z","contentChangedAt":"2026-09-06T11:45:09.575Z","schemaVersion":2},"datasetVersion":"2026-09-14T05:17:10.506Z"}