{"record":{"id":"ddd880a81b12878a","repo":"earendil-works/pi","slug":"offset-offset-is-beyond-end-of-file-alllines-ddd880","errorCode":null,"errorMessage":"Offset ${offset} is beyond end of file (${allLines.length} lines total)","messagePattern":"Offset (.+?) is beyond end of file \\((.+?) lines total\\)","errorType":"validation","errorClass":null,"httpStatus":null,"severity":"error","filePath":"packages/coding-agent/src/core/tools/read.ts","lineNumber":282,"sourceCode":"\t\t\t\t\t\t\t\t\tif (processed.hints.length > 0) textNote += `\\n${processed.hints.join(\"\\n\")}`;\n\t\t\t\t\t\t\t\t\tif (nonVisionImageNote) textNote += `\\n${nonVisionImageNote}`;\n\t\t\t\t\t\t\t\t\tcontent = [\n\t\t\t\t\t\t\t\t\t\t{ type: \"text\", text: textNote },\n\t\t\t\t\t\t\t\t\t\t{ type: \"image\", data: processed.data, mimeType: processed.mimeType },\n\t\t\t\t\t\t\t\t\t];\n\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\t\t// Read text content.\n\t\t\t\t\t\t\t\tconst buffer = await ops.readFile(absolutePath);\n\t\t\t\t\t\t\t\tconst textContent = buffer.toString(\"utf-8\");\n\t\t\t\t\t\t\t\tconst allLines = textContent.split(\"\\n\");\n\t\t\t\t\t\t\t\tconst totalFileLines = allLines.length;\n\t\t\t\t\t\t\t\t// Apply offset if specified. Convert from 1-indexed input to 0-indexed array access.\n\t\t\t\t\t\t\t\tconst startLine = offset ? Math.max(0, offset - 1) : 0;\n\t\t\t\t\t\t\t\tconst startLineDisplay = startLine + 1;\n\t\t\t\t\t\t\t\t// Check if offset is out of bounds.\n\t\t\t\t\t\t\t\tif (startLine >= allLines.length) {\n\t\t\t\t\t\t\t\t\tthrow new Error(`Offset ${offset} is beyond end of file (${allLines.length} lines total)`);\n\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\tlet selectedContent: string;\n\t\t\t\t\t\t\t\tlet userLimitedLines: number | undefined;\n\t\t\t\t\t\t\t\t// If limit is specified by the user, honor it first. Otherwise truncateHead decides.\n\t\t\t\t\t\t\t\tif (limit !== undefined) {\n\t\t\t\t\t\t\t\t\tconst endLine = Math.min(startLine + limit, allLines.length);\n\t\t\t\t\t\t\t\t\tselectedContent = allLines.slice(startLine, endLine).join(\"\\n\");\n\t\t\t\t\t\t\t\t\tuserLimitedLines = endLine - startLine;\n\t\t\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\t\t\tselectedContent = allLines.slice(startLine).join(\"\\n\");\n\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\t// Apply truncation, respecting both line and byte limits.\n\t\t\t\t\t\t\t\tconst truncation = truncateHead(selectedContent);\n\t\t\t\t\t\t\t\tlet outputText: string;\n\t\t\t\t\t\t\t\tif (truncation.firstLineExceedsLimit) {\n\t\t\t\t\t\t\t\t\t// First line alone exceeds the byte limit. Point the model at a bash fallback.\n\t\t\t\t\t\t\t\t\tconst firstLineSize = formatSize(Buffer.byteLength(allLines[startLine], \"utf-8\"));\n\t\t\t\t\t\t\t\t\toutputText = `[Line ${startLineDisplay} is ${firstLineSize}, exceeds ${formatSize(DEFAULT_MAX_BYTES)} limit. Use bash: sed -n '${startLineDisplay}p' ${path} | head -c ${DEFAULT_MAX_BYTES}]`;","sourceCodeStart":264,"sourceCodeEnd":300,"githubUrl":"https://github.com/earendil-works/pi/blob/4af9d21d3b4d664e4a29fcabfec85171077248e3/packages/coding-agent/src/core/tools/read.ts#L264-L300","documentation":"Error \"Offset ${offset} is beyond end of file (${allLines.length} lines total)\" thrown in earendil-works/pi.","triggerScenarios":"Thrown at packages/coding-agent/src/core/tools/read.ts:282 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":[],"exampleFix":null,"handlingStrategy":null,"validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"4af9d21d3b4d664e4a29fcabfec85171077248e3","analyzedAt":"2026-08-24T13:07:14.692Z","schemaVersion":2},"datasetVersion":"2026-08-24T17:17:21.512Z"}