renderer.go

  1package messages
  2
  3import (
  4	"encoding/json"
  5	"fmt"
  6	"strings"
  7	"time"
  8
  9	"github.com/charmbracelet/crush/internal/fsext"
 10	"github.com/charmbracelet/crush/internal/highlight"
 11	"github.com/charmbracelet/crush/internal/llm/agent"
 12	"github.com/charmbracelet/crush/internal/llm/tools"
 13	"github.com/charmbracelet/crush/internal/tui/components/core"
 14	"github.com/charmbracelet/crush/internal/tui/styles"
 15	"github.com/charmbracelet/lipgloss/v2"
 16	"github.com/charmbracelet/lipgloss/v2/tree"
 17	"github.com/charmbracelet/x/ansi"
 18)
 19
 20// responseContextHeight limits the number of lines displayed in tool output
 21const responseContextHeight = 10
 22
 23// renderer defines the interface for tool-specific rendering implementations
 24type renderer interface {
 25	// Render returns the complete (already styled) tool‑call view, not
 26	// including the outer border.
 27	Render(v *toolCallCmp) string
 28}
 29
 30// rendererFactory creates new renderer instances
 31type rendererFactory func() renderer
 32
 33// renderRegistry manages the mapping of tool names to their renderers
 34type renderRegistry map[string]rendererFactory
 35
 36// register adds a new renderer factory to the registry
 37func (rr renderRegistry) register(name string, f rendererFactory) { rr[name] = f }
 38
 39// lookup retrieves a renderer for the given tool name, falling back to generic renderer
 40func (rr renderRegistry) lookup(name string) renderer {
 41	if f, ok := rr[name]; ok {
 42		return f()
 43	}
 44	return genericRenderer{} // sensible fallback
 45}
 46
 47// registry holds all registered tool renderers
 48var registry = renderRegistry{}
 49
 50// baseRenderer provides common functionality for all tool renderers
 51type baseRenderer struct{}
 52
 53// paramBuilder helps construct parameter lists for tool headers
 54type paramBuilder struct {
 55	args []string
 56}
 57
 58// newParamBuilder creates a new parameter builder
 59func newParamBuilder() *paramBuilder {
 60	return &paramBuilder{args: make([]string, 0)}
 61}
 62
 63// addMain adds the main parameter (first argument)
 64func (pb *paramBuilder) addMain(value string) *paramBuilder {
 65	if value != "" {
 66		pb.args = append(pb.args, value)
 67	}
 68	return pb
 69}
 70
 71// addKeyValue adds a key-value pair parameter
 72func (pb *paramBuilder) addKeyValue(key, value string) *paramBuilder {
 73	if value != "" {
 74		pb.args = append(pb.args, key, value)
 75	}
 76	return pb
 77}
 78
 79// addFlag adds a boolean flag parameter
 80func (pb *paramBuilder) addFlag(key string, value bool) *paramBuilder {
 81	if value {
 82		pb.args = append(pb.args, key, "true")
 83	}
 84	return pb
 85}
 86
 87// build returns the final parameter list
 88func (pb *paramBuilder) build() []string {
 89	return pb.args
 90}
 91
 92// renderWithParams provides a common rendering pattern for tools with parameters
 93func (br baseRenderer) renderWithParams(v *toolCallCmp, toolName string, args []string, contentRenderer func() string) string {
 94	width := v.textWidth()
 95	if v.isNested {
 96		width -= 4 // Adjust for nested tool call indentation
 97	}
 98	header := br.makeHeader(v, toolName, width, args...)
 99	if v.isNested {
100		return v.style().Render(header)
101	}
102	if res, done := earlyState(header, v); done {
103		return res
104	}
105	body := contentRenderer()
106	return joinHeaderBody(header, body)
107}
108
109// unmarshalParams safely unmarshal JSON parameters
110func (br baseRenderer) unmarshalParams(input string, target any) error {
111	return json.Unmarshal([]byte(input), target)
112}
113
114// makeHeader builds the tool call header with status icon and parameters for a nested tool call.
115func (br baseRenderer) makeNestedHeader(v *toolCallCmp, tool string, width int, params ...string) string {
116	t := styles.CurrentTheme()
117	tool = t.S().Base.Foreground(t.FgHalfMuted).Render(tool) + " "
118	return tool + renderParamList(true, width-lipgloss.Width(tool), params...)
119}
120
121// makeHeader builds "<Tool>: param (key=value)" and truncates as needed.
122func (br baseRenderer) makeHeader(v *toolCallCmp, tool string, width int, params ...string) string {
123	if v.isNested {
124		return br.makeNestedHeader(v, tool, width, params...)
125	}
126	t := styles.CurrentTheme()
127	icon := t.S().Base.Foreground(t.GreenDark).Render(styles.ToolPending)
128	if v.result.ToolCallID != "" {
129		if v.result.IsError {
130			icon = t.S().Base.Foreground(t.RedDark).Render(styles.ToolError)
131		} else {
132			icon = t.S().Base.Foreground(t.Green).Render(styles.ToolSuccess)
133		}
134	} else if v.cancelled {
135		icon = t.S().Muted.Render(styles.ToolPending)
136	}
137	tool = t.S().Base.Foreground(t.Blue).Render(tool)
138	prefix := fmt.Sprintf("%s %s ", icon, tool)
139	return prefix + renderParamList(false, width-lipgloss.Width(prefix), params...)
140}
141
142// renderError provides consistent error rendering
143func (br baseRenderer) renderError(v *toolCallCmp, message string) string {
144	t := styles.CurrentTheme()
145	header := br.makeHeader(v, prettifyToolName(v.call.Name), v.textWidth(), "")
146	errorTag := t.S().Base.Padding(0, 1).Background(t.Red).Foreground(t.White).Render("ERROR")
147	message = t.S().Base.Foreground(t.FgHalfMuted).Render(v.fit(message, v.textWidth()-3-lipgloss.Width(errorTag))) // -2 for padding and space
148	return joinHeaderBody(header, errorTag+" "+message)
149}
150
151// Register tool renderers
152func init() {
153	registry.register(tools.BashToolName, func() renderer { return bashRenderer{} })
154	registry.register(tools.ViewToolName, func() renderer { return viewRenderer{} })
155	registry.register(tools.EditToolName, func() renderer { return editRenderer{} })
156	registry.register(tools.WriteToolName, func() renderer { return writeRenderer{} })
157	registry.register(tools.FetchToolName, func() renderer { return fetchRenderer{} })
158	registry.register(tools.GlobToolName, func() renderer { return globRenderer{} })
159	registry.register(tools.GrepToolName, func() renderer { return grepRenderer{} })
160	registry.register(tools.LSToolName, func() renderer { return lsRenderer{} })
161	registry.register(tools.SourcegraphToolName, func() renderer { return sourcegraphRenderer{} })
162	registry.register(tools.DiagnosticsToolName, func() renderer { return diagnosticsRenderer{} })
163	registry.register(agent.AgentToolName, func() renderer { return agentRenderer{} })
164}
165
166// -----------------------------------------------------------------------------
167//  Generic renderer
168// -----------------------------------------------------------------------------
169
170// genericRenderer handles unknown tool types with basic parameter display
171type genericRenderer struct {
172	baseRenderer
173}
174
175// Render displays the tool call with its raw input and plain content output
176func (gr genericRenderer) Render(v *toolCallCmp) string {
177	return gr.renderWithParams(v, prettifyToolName(v.call.Name), []string{v.call.Input}, func() string {
178		return renderPlainContent(v, v.result.Content)
179	})
180}
181
182// -----------------------------------------------------------------------------
183//  Bash renderer
184// -----------------------------------------------------------------------------
185
186// bashRenderer handles bash command execution display
187type bashRenderer struct {
188	baseRenderer
189}
190
191// Render displays the bash command with sanitized newlines and plain output
192func (br bashRenderer) Render(v *toolCallCmp) string {
193	var params tools.BashParams
194	if err := br.unmarshalParams(v.call.Input, &params); err != nil {
195		return br.renderError(v, "Invalid bash parameters")
196	}
197
198	cmd := strings.ReplaceAll(params.Command, "\n", " ")
199	args := newParamBuilder().addMain(cmd).build()
200
201	return br.renderWithParams(v, "Bash", args, func() string {
202		if v.result.Content == tools.BashNoOutput {
203			return ""
204		}
205		return renderPlainContent(v, v.result.Content)
206	})
207}
208
209// -----------------------------------------------------------------------------
210//  View renderer
211// -----------------------------------------------------------------------------
212
213// viewRenderer handles file viewing with syntax highlighting and line numbers
214type viewRenderer struct {
215	baseRenderer
216}
217
218// Render displays file content with optional limit and offset parameters
219func (vr viewRenderer) Render(v *toolCallCmp) string {
220	var params tools.ViewParams
221	if err := vr.unmarshalParams(v.call.Input, &params); err != nil {
222		return vr.renderError(v, "Invalid view parameters")
223	}
224
225	file := fsext.PrettyPath(params.FilePath)
226	args := newParamBuilder().
227		addMain(file).
228		addKeyValue("limit", formatNonZero(params.Limit)).
229		addKeyValue("offset", formatNonZero(params.Offset)).
230		build()
231
232	return vr.renderWithParams(v, "View", args, func() string {
233		var meta tools.ViewResponseMetadata
234		if err := vr.unmarshalParams(v.result.Metadata, &meta); err != nil {
235			return renderPlainContent(v, v.result.Content)
236		}
237		return renderCodeContent(v, meta.FilePath, meta.Content, params.Offset)
238	})
239}
240
241// formatNonZero returns string representation of non-zero integers, empty string for zero
242func formatNonZero(value int) string {
243	if value == 0 {
244		return ""
245	}
246	return fmt.Sprintf("%d", value)
247}
248
249// -----------------------------------------------------------------------------
250//  Edit renderer
251// -----------------------------------------------------------------------------
252
253// editRenderer handles file editing with diff visualization
254type editRenderer struct {
255	baseRenderer
256}
257
258// Render displays the edited file with a formatted diff of changes
259func (er editRenderer) Render(v *toolCallCmp) string {
260	var params tools.EditParams
261	var args []string
262	if err := er.unmarshalParams(v.call.Input, &params); err == nil {
263		file := fsext.PrettyPath(params.FilePath)
264		args = newParamBuilder().addMain(file).build()
265	}
266
267	return er.renderWithParams(v, "Edit", args, func() string {
268		var meta tools.EditResponseMetadata
269		if err := er.unmarshalParams(v.result.Metadata, &meta); err != nil {
270			return renderPlainContent(v, v.result.Content)
271		}
272
273		formatter := core.DiffFormatter().
274			Before(fsext.PrettyPath(params.FilePath), meta.OldContent).
275			After(fsext.PrettyPath(params.FilePath), meta.NewContent).
276			Width(v.textWidth() - 2) // -2 for padding
277		if v.textWidth() > 120 {
278			formatter = formatter.Split()
279		}
280		return formatter.String()
281	})
282}
283
284// -----------------------------------------------------------------------------
285//  Write renderer
286// -----------------------------------------------------------------------------
287
288// writeRenderer handles file writing with syntax-highlighted content preview
289type writeRenderer struct {
290	baseRenderer
291}
292
293// Render displays the file being written with syntax highlighting
294func (wr writeRenderer) Render(v *toolCallCmp) string {
295	var params tools.WriteParams
296	var args []string
297	var file string
298	if err := wr.unmarshalParams(v.call.Input, &params); err == nil {
299		file = fsext.PrettyPath(params.FilePath)
300		args = newParamBuilder().addMain(file).build()
301	}
302
303	return wr.renderWithParams(v, "Write", args, func() string {
304		return renderCodeContent(v, file, params.Content, 0)
305	})
306}
307
308// -----------------------------------------------------------------------------
309//  Fetch renderer
310// -----------------------------------------------------------------------------
311
312// fetchRenderer handles URL fetching with format-specific content display
313type fetchRenderer struct {
314	baseRenderer
315}
316
317// Render displays the fetched URL with format and timeout parameters
318func (fr fetchRenderer) Render(v *toolCallCmp) string {
319	var params tools.FetchParams
320	var args []string
321	if err := fr.unmarshalParams(v.call.Input, &params); err == nil {
322		args = newParamBuilder().
323			addMain(params.URL).
324			addKeyValue("format", params.Format).
325			addKeyValue("timeout", formatTimeout(params.Timeout)).
326			build()
327	}
328
329	return fr.renderWithParams(v, "Fetch", args, func() string {
330		file := fr.getFileExtension(params.Format)
331		return renderCodeContent(v, file, v.result.Content, 0)
332	})
333}
334
335// getFileExtension returns appropriate file extension for syntax highlighting
336func (fr fetchRenderer) getFileExtension(format string) string {
337	switch format {
338	case "text":
339		return "fetch.txt"
340	case "html":
341		return "fetch.html"
342	default:
343		return "fetch.md"
344	}
345}
346
347// formatTimeout converts timeout seconds to duration string
348func formatTimeout(timeout int) string {
349	if timeout == 0 {
350		return ""
351	}
352	return (time.Duration(timeout) * time.Second).String()
353}
354
355// -----------------------------------------------------------------------------
356//  Glob renderer
357// -----------------------------------------------------------------------------
358
359// globRenderer handles file pattern matching with path filtering
360type globRenderer struct {
361	baseRenderer
362}
363
364// Render displays the glob pattern with optional path parameter
365func (gr globRenderer) Render(v *toolCallCmp) string {
366	var params tools.GlobParams
367	var args []string
368	if err := gr.unmarshalParams(v.call.Input, &params); err == nil {
369		args = newParamBuilder().
370			addMain(params.Pattern).
371			addKeyValue("path", params.Path).
372			build()
373	}
374
375	return gr.renderWithParams(v, "Glob", args, func() string {
376		return renderPlainContent(v, v.result.Content)
377	})
378}
379
380// -----------------------------------------------------------------------------
381//  Grep renderer
382// -----------------------------------------------------------------------------
383
384// grepRenderer handles content searching with pattern matching options
385type grepRenderer struct {
386	baseRenderer
387}
388
389// Render displays the search pattern with path, include, and literal text options
390func (gr grepRenderer) Render(v *toolCallCmp) string {
391	var params tools.GrepParams
392	var args []string
393	if err := gr.unmarshalParams(v.call.Input, &params); err == nil {
394		args = newParamBuilder().
395			addMain(params.Pattern).
396			addKeyValue("path", params.Path).
397			addKeyValue("include", params.Include).
398			addFlag("literal", params.LiteralText).
399			build()
400	}
401
402	return gr.renderWithParams(v, "Grep", args, func() string {
403		return renderPlainContent(v, v.result.Content)
404	})
405}
406
407// -----------------------------------------------------------------------------
408//  LS renderer
409// -----------------------------------------------------------------------------
410
411// lsRenderer handles directory listing with default path handling
412type lsRenderer struct {
413	baseRenderer
414}
415
416// Render displays the directory path, defaulting to current directory
417func (lr lsRenderer) Render(v *toolCallCmp) string {
418	var params tools.LSParams
419	var args []string
420	if err := lr.unmarshalParams(v.call.Input, &params); err == nil {
421		path := params.Path
422		if path == "" {
423			path = "."
424		}
425		path = fsext.PrettyPath(path)
426
427		args = newParamBuilder().addMain(path).build()
428	}
429
430	return lr.renderWithParams(v, "List", args, func() string {
431		return renderPlainContent(v, v.result.Content)
432	})
433}
434
435// -----------------------------------------------------------------------------
436//  Sourcegraph renderer
437// -----------------------------------------------------------------------------
438
439// sourcegraphRenderer handles code search with count and context options
440type sourcegraphRenderer struct {
441	baseRenderer
442}
443
444// Render displays the search query with optional count and context window parameters
445func (sr sourcegraphRenderer) Render(v *toolCallCmp) string {
446	var params tools.SourcegraphParams
447	var args []string
448	if err := sr.unmarshalParams(v.call.Input, &params); err == nil {
449		args = newParamBuilder().
450			addMain(params.Query).
451			addKeyValue("count", formatNonZero(params.Count)).
452			addKeyValue("context", formatNonZero(params.ContextWindow)).
453			build()
454	}
455
456	return sr.renderWithParams(v, "Sourcegraph", args, func() string {
457		return renderPlainContent(v, v.result.Content)
458	})
459}
460
461// -----------------------------------------------------------------------------
462//  Diagnostics renderer
463// -----------------------------------------------------------------------------
464
465// diagnosticsRenderer handles project-wide diagnostic information
466type diagnosticsRenderer struct {
467	baseRenderer
468}
469
470// Render displays project diagnostics with plain content formatting
471func (dr diagnosticsRenderer) Render(v *toolCallCmp) string {
472	args := newParamBuilder().addMain("project").build()
473
474	return dr.renderWithParams(v, "Diagnostics", args, func() string {
475		return renderPlainContent(v, v.result.Content)
476	})
477}
478
479// -----------------------------------------------------------------------------
480//  Task renderer
481// -----------------------------------------------------------------------------
482
483// agentRenderer handles project-wide diagnostic information
484type agentRenderer struct {
485	baseRenderer
486}
487
488func RoundedEnumerator(children tree.Children, index int) string {
489	if children.Length()-1 == index {
490		return " ╰──"
491	}
492	return " ├──"
493}
494
495// Render displays agent task parameters and result content
496func (tr agentRenderer) Render(v *toolCallCmp) string {
497	t := styles.CurrentTheme()
498	var params agent.AgentParams
499	tr.unmarshalParams(v.call.Input, &params)
500
501	prompt := params.Prompt
502	prompt = strings.ReplaceAll(prompt, "\n", " ")
503
504	header := tr.makeHeader(v, "Agent", v.textWidth())
505	if res, done := earlyState(header, v); done {
506		return res
507	}
508	taskTag := t.S().Base.Padding(0, 1).MarginLeft(1).Background(t.BlueLight).Foreground(t.White).Render("Task")
509	remainingWidth := v.textWidth() - lipgloss.Width(header) - lipgloss.Width(taskTag) - 2 // -2 for padding
510	prompt = t.S().Muted.Width(remainingWidth).Render(prompt)
511	header = lipgloss.JoinVertical(
512		lipgloss.Left,
513		header,
514		"",
515		lipgloss.JoinHorizontal(
516			lipgloss.Left,
517			taskTag,
518			" ",
519			prompt,
520		),
521	)
522	childTools := tree.Root(header)
523
524	for _, call := range v.nestedToolCalls {
525		childTools.Child(call.View())
526	}
527	parts := []string{
528		childTools.Enumerator(RoundedEnumerator).String(),
529	}
530	if v.result.ToolCallID == "" {
531		v.spinning = true
532		parts = append(parts, v.anim.View().String())
533	} else {
534		v.spinning = false
535	}
536
537	header = lipgloss.JoinVertical(
538		lipgloss.Left,
539		parts...,
540	)
541
542	if v.result.ToolCallID == "" {
543		return header
544	}
545
546	body := renderPlainContent(v, v.result.Content)
547	return joinHeaderBody(header, body)
548}
549
550// renderParamList renders params, params[0] (params[1]=params[2] ....)
551func renderParamList(nested bool, paramsWidth int, params ...string) string {
552	t := styles.CurrentTheme()
553	if len(params) == 0 {
554		return ""
555	}
556	mainParam := params[0]
557	if len(mainParam) > paramsWidth {
558		mainParam = mainParam[:paramsWidth-3] + "..."
559	}
560
561	if len(params) == 1 {
562		if nested {
563			return t.S().Muted.Render(mainParam)
564		}
565		return t.S().Subtle.Render(mainParam)
566	}
567	otherParams := params[1:]
568	// create pairs of key/value
569	// if odd number of params, the last one is a key without value
570	if len(otherParams)%2 != 0 {
571		otherParams = append(otherParams, "")
572	}
573	parts := make([]string, 0, len(otherParams)/2)
574	for i := 0; i < len(otherParams); i += 2 {
575		key := otherParams[i]
576		value := otherParams[i+1]
577		if value == "" {
578			continue
579		}
580		parts = append(parts, fmt.Sprintf("%s=%s", key, value))
581	}
582
583	partsRendered := strings.Join(parts, ", ")
584	remainingWidth := paramsWidth - lipgloss.Width(partsRendered) - 3 // count for " ()"
585	if remainingWidth < 30 {
586		if nested {
587			return t.S().Muted.Render(mainParam)
588		}
589		// No space for the params, just show the main
590		return t.S().Subtle.Render(mainParam)
591	}
592
593	if len(parts) > 0 {
594		mainParam = fmt.Sprintf("%s (%s)", mainParam, strings.Join(parts, ", "))
595	}
596
597	if nested {
598		return t.S().Muted.Render(ansi.Truncate(mainParam, paramsWidth, "..."))
599	}
600	return t.S().Subtle.Render(ansi.Truncate(mainParam, paramsWidth, "..."))
601}
602
603// earlyState returns immediately‑rendered error/cancelled/ongoing states.
604func earlyState(header string, v *toolCallCmp) (string, bool) {
605	t := styles.CurrentTheme()
606	message := ""
607	switch {
608	case v.result.IsError:
609		message = v.renderToolError()
610	case v.cancelled:
611		message = t.S().Base.Padding(0, 1).Background(t.Border).Render("Cancelled")
612	case v.result.ToolCallID == "":
613		message = t.S().Base.Padding(0, 1).Background(t.Accent).Foreground(t.FgSubtle).Render("Waiting for tool to start...")
614	default:
615		return "", false
616	}
617
618	message = t.S().Base.PaddingLeft(2).Render(message)
619	return lipgloss.JoinVertical(lipgloss.Left, header, "", message), true
620}
621
622func joinHeaderBody(header, body string) string {
623	t := styles.CurrentTheme()
624	body = t.S().Base.PaddingLeft(2).Render(body)
625	return lipgloss.JoinVertical(lipgloss.Left, header, "", body, "")
626}
627
628func renderPlainContent(v *toolCallCmp, content string) string {
629	t := styles.CurrentTheme()
630	content = strings.TrimSpace(content)
631	lines := strings.Split(content, "\n")
632
633	width := v.textWidth() - 2 // -2 for left padding
634	var out []string
635	for i, ln := range lines {
636		if i >= responseContextHeight {
637			break
638		}
639		ln = " " + ln // left padding
640		if len(ln) > width {
641			ln = v.fit(ln, width)
642		}
643		out = append(out, t.S().Muted.
644			Width(width).
645			Background(t.BgBaseLighter).
646			Render(ln))
647	}
648
649	if len(lines) > responseContextHeight {
650		out = append(out, t.S().Muted.
651			Background(t.BgBaseLighter).
652			Width(width).
653			Render(fmt.Sprintf("... (%d lines)", len(lines)-responseContextHeight)))
654	}
655	return strings.Join(out, "\n")
656}
657
658func pad(v any, width int) string {
659	s := fmt.Sprintf("%v", v)
660	w := ansi.StringWidth(s)
661	if w >= width {
662		return s
663	}
664	return strings.Repeat(" ", width-w) + s
665}
666
667func renderCodeContent(v *toolCallCmp, path, content string, offset int) string {
668	t := styles.CurrentTheme()
669	truncated := truncateHeight(content, responseContextHeight)
670
671	highlighted, _ := highlight.SyntaxHighlight(truncated, path, t.BgBase)
672	lines := strings.Split(highlighted, "\n")
673
674	if len(strings.Split(content, "\n")) > responseContextHeight {
675		lines = append(lines, t.S().Muted.
676			Background(t.BgBase).
677			Render(fmt.Sprintf(" …(%d lines)", len(strings.Split(content, "\n"))-responseContextHeight)))
678	}
679
680	maxLineNumber := len(lines) + offset
681	padding := lipgloss.Width(fmt.Sprintf("%d", maxLineNumber))
682	for i, ln := range lines {
683		num := t.S().Base.
684			Foreground(t.FgMuted).
685			Background(t.BgBase).
686			PaddingRight(1).
687			PaddingLeft(1).
688			Render(pad(i+1+offset, padding))
689		w := v.textWidth() - 10 - lipgloss.Width(num) // -4 for left padding
690		lines[i] = lipgloss.JoinHorizontal(lipgloss.Left,
691			num,
692			t.S().Base.
693				PaddingLeft(1).
694				Render(v.fit(ln, w-1)))
695	}
696	return lipgloss.JoinVertical(lipgloss.Left, lines...)
697}
698
699func (v *toolCallCmp) renderToolError() string {
700	t := styles.CurrentTheme()
701	err := strings.ReplaceAll(v.result.Content, "\n", " ")
702	errTag := t.S().Base.Padding(0, 1).Background(t.Red).Foreground(t.White).Render("ERROR")
703	err = fmt.Sprintf("%s %s", errTag, t.S().Base.Foreground(t.FgHalfMuted).Render(v.fit(err, v.textWidth()-2-lipgloss.Width(errTag))))
704	return err
705}
706
707func truncateHeight(s string, h int) string {
708	lines := strings.Split(s, "\n")
709	if len(lines) > h {
710		return strings.Join(lines[:h], "\n")
711	}
712	return s
713}
714
715func prettifyToolName(name string) string {
716	switch name {
717	case agent.AgentToolName:
718		return "Agent"
719	case tools.BashToolName:
720		return "Bash"
721	case tools.EditToolName:
722		return "Edit"
723	case tools.FetchToolName:
724		return "Fetch"
725	case tools.GlobToolName:
726		return "Glob"
727	case tools.GrepToolName:
728		return "Grep"
729	case tools.LSToolName:
730		return "List"
731	case tools.SourcegraphToolName:
732		return "Sourcegraph"
733	case tools.ViewToolName:
734		return "View"
735	case tools.WriteToolName:
736		return "Write"
737	default:
738		return name
739	}
740}