chore: remove all Crush references from comments

Remove mentions of Crush from:
- cache_control.go
- agent.go (2 references)
- content.go
- tool_renderers.go
- lsp-diagnostics.go (2 references)

examples/extensions/lsp-diagnostics.go

@@ -2,9 +2,7 @@
 
 // lsp-diagnostics.go — LSP-powered diagnostics for Kit's edit tool.
 //
-// Starts language servers on demand and surfaces diagnostics after file edits,
-// following the same pattern used by Charm's crush editor:
-//
+// Starts language servers on demand and surfaces diagnostics after file edits:
 //  1. After an edit, notify the LSP server of the file change
 //  2. Wait for the server to publish fresh diagnostics
 //  3. Append diagnostic output to the edit tool's result
@@ -412,7 +410,7 @@ func (c *lspClient) changeFile(absPath, content string) {
 }
 
 // waitForDiagnostics polls until the server publishes new diagnostics or
-// the timeout elapses. Mirrors crush's WaitForDiagnostics pattern.
+// the timeout elapses.
 func (c *lspClient) waitForDiagnostics(timeout time.Duration) {
 	c.diagMu.Lock()
 	startVersion := c.diagVersion

internal/agent/agent.go

@@ -100,7 +100,7 @@ type GenerateWithLoopResult struct {
 	FinalResponse *fantasy.Response
 	// ConversationMessages contains all messages in the conversation including tool calls and results
 	ConversationMessages []fantasy.Message
-	// Messages contains the conversation as custom content blocks (crush-style)
+	// Messages contains the conversation as custom content blocks
 	Messages []message.Message
 	// TotalUsage contains aggregate token usage across all steps
 	TotalUsage fantasy.Usage
@@ -166,7 +166,7 @@ func NewAgent(ctx context.Context, agentConfig *AgentConfig) (*Agent, error) {
 	}
 
 	if len(allTools) > 0 {
-		// Apply cache control to last tool (4th block in Crush's 4-block strategy)
+		// Apply cache control to last tool (4th cache block)
 		allTools[len(allTools)-1].SetProviderOptions(cacheControlOptions())
 		agentOpts = append(agentOpts, fantasy.WithTools(allTools...))
 	}

internal/agent/cache_control.go

@@ -16,7 +16,7 @@ func cacheControlOptions() fantasy.ProviderOptions {
 }
 
 // applyCacheControlToMessages adds cache control to specific messages.
-// Following Crush's strategy (max 4 blocks per Anthropic limit):
+// Anthropic allows max 4 cache blocks per request:
 // 1. Last system message (if present)
 // 2. Last 2 messages in the conversation
 func applyCacheControlToMessages(messages []fantasy.Message) []fantasy.Message {

internal/message/content.go

@@ -115,9 +115,9 @@ const (
 )
 
 // Message is a single conversation message containing a heterogeneous slice
-// of ContentPart blocks. This design (borrowed from crush) enables a single
-// assistant message to carry text, reasoning, and multiple tool calls as
-// discrete, typed blocks rather than flattening everything into strings.
+// of ContentPart blocks. This design enables a single assistant message to
+// carry text, reasoning, and multiple tool calls as discrete, typed blocks
+// rather than flattening everything into strings.
 type Message struct {
 	ID        string        `json:"id"`
 	Role      MessageRole   `json:"role"`

internal/ui/tool_renderers.go

@@ -634,7 +634,6 @@ func renderBashBody(toolResult string, width int) string {
 
 	const lineIndent = "  "
 	// Truncate individual lines to the available width so they never wrap.
-	// This mirrors Crush's approach: truncate, don't wrap.
 	lineWidth := max(width-len(lineIndent), 20)
 	// Account for PaddingLeft(1) on the output/stderr styles
 	maxLineChars := lineWidth - 1