{"record":{"id":"fdbc95fdf7f169cf","repo":"aaif-goose/goose","slug":"session-has-no-conversation-after-history-modifica","errorCode":null,"errorMessage":"Session has no conversation after history modification","messagePattern":"Session has no conversation after history modification","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"crates/goose/src/agents/agent.rs","lineNumber":2047,"sourceCode":"                    .await?;\n\n                // Check if this was a command that modifies conversation history\n                let modifies_history = crate::agents::execute_commands::COMPACT_TRIGGERS\n                    .contains(&message_text.trim())\n                    || message_text.trim() == \"/clear\";\n\n                return Ok(Box::pin(async_stream::try_stream! {\n                    yield AgentEvent::Message(user_message);\n                    yield AgentEvent::Message(response);\n\n                    // After commands that modify history, notify UI that history was replaced\n                    if modifies_history {\n                        let updated_session = session_manager.get_session(&session_config.id, true)\n                            .await\n                            .map_err(|e| anyhow!(\"Failed to fetch updated session: {}\", e))?;\n                        let updated_conversation = updated_session\n                            .conversation\n                            .ok_or_else(|| anyhow!(\"Session has no conversation after history modification\"))?;\n                        yield AgentEvent::HistoryReplaced(updated_conversation);\n                    }\n                }));\n            }\n            Ok(Some(resolved_message)) => {\n                session_manager\n                    .add_message(\n                        &session_config.id,\n                        &user_message.clone().with_visibility(true, false),\n                    )\n                    .await?;\n                session_manager\n                    .add_message(\n                        &session_config.id,\n                        &resolved_message.clone().with_visibility(false, true),\n                    )\n                    .await?;\n            }","sourceCodeStart":2029,"sourceCodeEnd":2065,"githubUrl":"https://github.com/aaif-goose/goose/blob/3810898a7447ec3299be72e223d3570a7aabf0ab/crates/goose/src/agents/agent.rs#L2029-L2065","documentation":"Companion of 316 in the same HistoryReplaced block: the re-fetch after /compact //clear succeeded, but Session.conversation is None, so there is no conversation to hand the UI. The session record on disk simply has no conversation attached — typical when the history-modifying command ran in a session that never had any messages (conversation metadata never created) or the session record lost that field.","triggerScenarios":"Issuing /clear (or a COMPACT_TRIGGERS command) as the very first input of a freshly created session whose record has conversation: None; session created via API without an initial exchange; older or externally-written session records missing the conversation field.","commonSituations":"Automation scripts creating empty sessions and immediately sending /clear; imported/migrated sessions with incomplete metadata.","solutions":["Send at least one normal message before issuing /clear or /compact so the session has a conversation","If the session should have messages, inspect its stored record for a missing conversation field and repair or recreate it","Treat the error as benign for genuinely empty sessions and continue without the HistoryReplaced event"],"exampleFix":null,"handlingStrategy":"validation","validationCode":"// Guard history-modifying commands on sessions that actually have a conversation:\nlet session = session_manager.get_session(&session_id, true).await?;\nif session.conversation.is_none() {\n    anyhow::bail!(\"session {session_id} has no conversation; nothing to clear\");\n}","typeGuard":"fn no_conversation(e: &anyhow::Error) -> bool {\n    e.to_string().contains(\"has no conversation\")\n}","tryCatchPattern":null,"preventionTips":["Send a normal first message before /clear or /compact in fresh sessions","Create sessions through the standard chat entry point so conversation metadata is initialized","Treat missing conversation on an 'empty' session as expected, not fatal"],"tags":["rust","goose","session","conversation","slash-commands"],"backgroundTag":null,"analyzedSha":"3810898a7447ec3299be72e223d3570a7aabf0ab","analyzedAt":"2026-08-16T10:14:26.282Z","schemaVersion":2},"datasetVersion":"2026-08-16T13:17:31.715Z"}