Compaction overhaul (#5186)

Co-authored-by: Douwe Osinga <douwe@squareup.com>
Co-authored-by: David Katz <dkatz@squareup.com>
Co-authored-by: Alex Hancock <alexhancock@block.xyz>

crates/goose/src/providers/formats/anthropic.rs

@@ -90,10 +90,7 @@ pub fn format_messages(messages: &[Message]) -> Vec<Value> {
                 MessageContent::ToolConfirmationRequest(_tool_confirmation_request) => {
                     // Skip tool confirmation requests
                 }
-                MessageContent::ContextLengthExceeded(_) => {
-                    // Skip
-                }
-                MessageContent::SummarizationRequested(_) => {
+                MessageContent::ConversationCompacted(_) => {
                     // Skip
                 }
                 MessageContent::Thinking(thinking) => {

crates/goose/src/providers/formats/bedrock.rs

@@ -48,10 +48,7 @@ pub fn to_bedrock_message_content(content: &MessageContent) -> Result<bedrock::C
             // Redacted thinking blocks are not supported in Bedrock - skip
             bedrock::ContentBlock::Text("".to_string())
         }
-        MessageContent::ContextLengthExceeded(_) => {
-            bail!("ContextLengthExceeded should not get passed to the provider")
-        }
-        MessageContent::SummarizationRequested(_) => {
+        MessageContent::ConversationCompacted(_) => {
             bail!("SummarizationRequested should not get passed to the provider")
         }
         MessageContent::ToolRequest(tool_req) => {

crates/goose/src/providers/formats/databricks.rs

@@ -127,10 +127,7 @@ fn format_messages(messages: &[Message], image_format: &ImageFormat) -> Vec<Data
                         }
                     }
                 }
-                MessageContent::ContextLengthExceeded(_) => {
-                    continue;
-                }
-                MessageContent::SummarizationRequested(_) => {
+                MessageContent::ConversationCompacted(_) => {
                     continue;
                 }
                 MessageContent::ToolResponse(response) => {

crates/goose/src/providers/formats/openai.rs

@@ -95,10 +95,7 @@ pub fn format_messages(messages: &[Message], image_format: &ImageFormat) -> Vec<
                     // Redacted thinking blocks are not directly used in OpenAI format
                     continue;
                 }
-                MessageContent::ContextLengthExceeded(_) => {
-                    continue;
-                }
-                MessageContent::SummarizationRequested(_) => {
+                MessageContent::ConversationCompacted(_) => {
                     continue;
                 }
                 MessageContent::ToolRequest(request) => match &request.tool_call {

crates/goose/src/providers/formats/snowflake.rs

@@ -53,10 +53,7 @@ pub fn format_messages(messages: &[Message]) -> Vec<Value> {
                 MessageContent::ToolConfirmationRequest(_) => {
                     // Skip tool confirmation requests
                 }
-                MessageContent::ContextLengthExceeded(_) => {
-                    // Skip
-                }
-                MessageContent::SummarizationRequested(_) => {
+                MessageContent::ConversationCompacted(_) => {
                     // Skip
                 }
                 MessageContent::Thinking(_thinking) => {