diff --git a/internal/model/cmd_buff.go b/internal/model/cmd_buff.go
index ef79ff5b..bac776e1 100644
--- a/internal/model/cmd_buff.go
+++ b/internal/model/cmd_buff.go
@@ -3,9 +3,9 @@ package model
 const maxBuff = 10
 
 const (
-	// Command represents a command buffer.
+	// CommandBuffer represents a command buffer.
 	CommandBuffer BufferKind = 1 << iota
-	// Filter represents a filter buffer.
+	// FilterBuffer represents a filter buffer.
 	FilterBuffer
 )
 
@@ -40,17 +40,25 @@ func NewCmdBuff(key rune, kind BufferKind) *CmdBuff {
 	}
 }
 
+// CurrentSuggestion returns the current suggestion.
 func (c *CmdBuff) CurrentSuggestion() (string, bool) {
 	return "", false
 }
+
+// NextSuggestion returns the next suggestion.
 func (c *CmdBuff) NextSuggestion() (string, bool) {
 	return "", false
 }
+
+// PrevSuggestion returns the prev suggestion.
 func (c *CmdBuff) PrevSuggestion() (string, bool) {
 	return "", false
 }
+
+// ClearSuggestions clear out all suggestions.
 func (c *CmdBuff) ClearSuggestions() {}
 
+// AutoSuggests returns true if model implements auto suggestions.
 func (c *CmdBuff) AutoSuggests() bool {
 	return false
 }
@@ -84,7 +92,7 @@ func (c *CmdBuff) GetText() string {
 	return string(c.buff)
 }
 
-// Set initializes the buffer with a command.
+// SetText initializes the buffer with a command.
 func (c *CmdBuff) SetText(cmd string) {
 	c.buff = []rune(cmd)
 	c.fireBufferChanged()
diff --git a/internal/model/fish_buff.go b/internal/model/fish_buff.go
index 13546878..ebe4cf7a 100644
--- a/internal/model/fish_buff.go
+++ b/internal/model/fish_buff.go
@@ -33,6 +33,7 @@ func NewFishBuff(key rune, kind BufferKind) *FishBuff {
 	}
 }
 
+// PrevSuggestion returns the prev suggestion.
 func (c *FishBuff) PrevSuggestion() (string, bool) {
 	if c.suggestionIndex < 0 {
 		return "", false
@@ -44,6 +45,7 @@ func (c *FishBuff) PrevSuggestion() (string, bool) {
 	return c.suggestions[c.suggestionIndex], true
 }
 
+// NextSuggestion returns the next suggestion.
 func (c *FishBuff) NextSuggestion() (string, bool) {
 	if c.suggestionIndex < 0 {
 		return "", false
@@ -55,10 +57,12 @@ func (c *FishBuff) NextSuggestion() (string, bool) {
 	return c.suggestions[c.suggestionIndex], true
 }
 
+// ClearSuggestions clear out all suggestions.
 func (c *FishBuff) ClearSuggestions() {
 	c.suggestion, c.suggestionIndex = "", -1
 }
 
+// CurrentSuggestion returns the current suggestion.
 func (c *FishBuff) CurrentSuggestion() (string, bool) {
 	if c.suggestionIndex < 0 {
 		return "", false
@@ -66,10 +70,12 @@ func (c *FishBuff) CurrentSuggestion() (string, bool) {
 	return c.suggestions[c.suggestionIndex], true
 }
 
+// AutoSuggests returns true if model implements auto suggestions.
 func (c *FishBuff) AutoSuggests() bool {
 	return true
 }
 
+// Suggestions returns suggestions.
 func (f *FishBuff) Suggestions() []string {
 	if f.suggestionFn != nil {
 		return f.suggestionFn(string(f.buff))
diff --git a/internal/ui/app.go b/internal/ui/app.go
index 62b05499..4435ed96 100644
--- a/internal/ui/app.go
+++ b/internal/ui/app.go
@@ -115,6 +115,7 @@ func (a *App) BailOut() {
 	a.Stop()
 }
 
+// ResetPrompt reset the prompt model and marks buffer as active.
 func (a *App) ResetPrompt(m PromptModel) {
 	a.Prompt().SetModel(m)
 	a.SetFocus(a.Prompt())
@@ -220,7 +221,7 @@ func (a *App) Logo() *Logo {
 	return a.views["logo"].(*Logo)
 }
 
-// Cmd returns app cmd.
+// Prompt returns command prompt.
 func (a *App) Prompt() *Prompt {
 	return a.views["prompt"].(*Prompt)
 }
diff --git a/internal/ui/prompt.go b/internal/ui/prompt.go
index eaf6c825..894c715d 100644
--- a/internal/ui/prompt.go
+++ b/internal/ui/prompt.go
@@ -19,10 +19,18 @@ var _ Suggester = (*model.CmdBuff)(nil)
 var _ PromptModel = (*model.FishBuff)(nil)
 var _ Suggester = (*model.FishBuff)(nil)
 
+// Suggester provides suggestions.
 type Suggester interface {
+	// CurrentSuggestion returns the current suggestion.
 	CurrentSuggestion() (string, bool)
+
+	// NextSuggestion returns the next suggestion.
 	NextSuggestion() (string, bool)
+
+	// PrevSuggestion returns the prev suggestion.
 	PrevSuggestion() (string, bool)
+
+	// ClearSuggestions clear out all suggestions.
 	ClearSuggestions()
 }
 
@@ -51,9 +59,16 @@ type PromptModel interface {
 	// RemoveListener removes a listener.
 	RemoveListener(model.BuffWatcher)
 
+	// IsActive returns true if prompt is active.
 	IsActive() bool
+
+	// SetActive sets whether the prompt is active or not.
 	SetActive(bool)
+
+	// Add adds a new char to the prompt.
 	Add(rune)
+
+	// Delete deletes the last prompt character.
 	Delete()
 }
 
@@ -104,6 +119,7 @@ func (p *Prompt) SendStrokes(s string) {
 	}
 }
 
+// SetModel sets the prompt buffer model.
 func (c *Prompt) SetModel(m PromptModel) {
 	if c.model != nil {
 		c.model.RemoveListener(c)
diff --git a/internal/ui/table.go b/internal/ui/table.go
index 5fe660a7..118edd3f 100644
--- a/internal/ui/table.go
+++ b/internal/ui/table.go
@@ -148,6 +148,7 @@ func (t *Table) FilterInput(r rune) bool {
 	return true
 }
 
+// Filter filters out table data.
 func (t *Table) Filter(s string) {
 	t.ClearSelection()
 	t.doUpdate(t.filtered(t.GetModel().Peek()))