{"record":{"id":"e12022351825d521","repo":"earendil-works/pi","slug":"compaction-cancelled","errorCode":null,"errorMessage":"Compaction cancelled","messagePattern":"Compaction cancelled","errorType":"exception","errorClass":"Error","httpStatus":null,"severity":"error","filePath":"packages/coding-agent/src/core/agent-session.ts","lineNumber":1904,"sourceCode":"\t\t\t\t}\n\t\t\t\tthrow new Error(\"Nothing to compact (session too small)\");\n\t\t\t}\n\n\t\t\tlet extensionCompaction: CompactionResult | undefined;\n\n\t\t\tif (this._extensionRunner.hasHandlers(\"session_before_compact\")) {\n\t\t\t\tconst result = (await this._extensionRunner.emit({\n\t\t\t\t\ttype: \"session_before_compact\",\n\t\t\t\t\tpreparation,\n\t\t\t\t\tbranchEntries: pathEntries,\n\t\t\t\t\tcustomInstructions,\n\t\t\t\t\treason: \"manual\",\n\t\t\t\t\twillRetry: false,\n\t\t\t\t\tsignal: this._compactionAbortController.signal,\n\t\t\t\t})) as SessionBeforeCompactResult | undefined;\n\n\t\t\t\tif (result?.cancel) {\n\t\t\t\t\tthrow new Error(\"Compaction cancelled\");\n\t\t\t\t}\n\n\t\t\t\tif (result?.compaction) {\n\t\t\t\t\textensionCompaction = result.compaction;\n\t\t\t\t\tfromExtension = true;\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tlet summary: string;\n\t\t\tlet firstKeptEntryId: string;\n\t\t\tlet tokensBefore: number;\n\t\t\tlet usage: Usage | undefined;\n\t\t\tlet details: unknown;\n\n\t\t\tif (extensionCompaction) {\n\t\t\t\t// Extension provided compaction content\n\t\t\t\tsummary = extensionCompaction.summary;\n\t\t\t\tfirstKeptEntryId = extensionCompaction.firstKeptEntryId;","sourceCodeStart":1886,"sourceCodeEnd":1922,"githubUrl":"https://github.com/earendil-works/pi/blob/4af9d21d3b4d664e4a29fcabfec85171077248e3/packages/coding-agent/src/core/agent-session.ts#L1886-L1922","documentation":"Error \"Compaction cancelled\" thrown in earendil-works/pi.","triggerScenarios":"Thrown at packages/coding-agent/src/core/agent-session.ts:1904 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"}