Claude Code Analytics

This is Claude Code Analytics! It uses ClaudeCode statusline and Claude Code hooks to store information about your Claude Code sessions in a local SQLite database.

Why use hooks instead of just reading statusline data?

The statusline updates every 300ms, so we could do all analytics calculations in real-time. But this marvellous monstrosity explores a different approach:

• Hooks do heavy lifting during natural Claude Code pauses (PostToolUse, UserPromptSubmit)
• Statusline stays responsive with sub-millisecond lookups of pre-computed data
• True zero-impact analytics - expensive queries happen when Claude Code is already waiting
• Separation of concerns - data processing vs. display logic

The result? A statusline that can show complex productivity insights, cache efficiency metrics, and sparkline visualizations without ever slowing down your workflow.

Sometimes the best solution is the most over-engineered one! 😂

There's a CLI for reports and analytics, for example Cost Analytics...

◇  How many days to analyze?
│  7

Cost Trend (Last 7 Days)

   $21.47    ┤                           ╭────────────────╮
   $19.55    ┤                         ╭─╯                ╰──╮
   $17.63    ┤                       ╭─╯                     ╰──╮
   $15.71    ┤                     ╭─╯                          ╰──╮
   $13.78    ┤                  ╭──╯                               ╰───╮
   $11.86    ┤                ╭─╯                                      ╰─
    $9.94    ┤             ╭──╯
    $8.02    ┤   ╭─────────╯
    $6.10    ┼───╯

Total Cost        │$68.11
Total Sessions    │87
Avg Cost/Session  │$0.78
Daily Average     │$9.73

Activity patterns...

◇  How many days to analyze?
│  7

Activity Heatmap (Last 7 Days)

Total: 88 sessions across 5 days
Peak: 13 sessions on 2025-08-27 at 20:00

    00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23
Sun ░░ ░░ ░░ ░░ ░░ ░░ ░░ ░░ ░░ ░░ ░░ ░░ ░░ ░░ ░░ ░░ ░░ ░░ ░░ ░░ ░░ ░░ ░░ ░░
Mon ░░ ░░ ░░ ░░ ░░ ░░ ░░ ░░ ░░ ░░ ░░ ░░ ░░ ░░ ░░ ░░ ░░ ░░ ░░ ░░ ░░ ░░ ░░ ░░
Tue ░░ ░░ ░░ ░░ ░░ ░░ ░░ ░░ ▓▓ ▓▓ ▓▓ ░░ ░░ ░░ ░░ ░░ ▓▓ ░░ ░░ ▓▓ ░░ ░░ ░░ ░░
Wed ░░ ░░ ░░ ░░ ░░ ░░ ░░ ▓▓ ░░ ░░ ░░ ░░ ░░ ░░ ░░ ░░ ░░ ░░ ▓▓ ░░ ██ ▓▓ ░░ ░░
Thu ░░ ░░ ░░ ░░ ░░ ░░ ░░ ░░ ▓▓ ██ ░░ ░░ ░░ ░░ ░░ ░░ ▓▓ ▓▓ ▓▓ ▓▓ ░░ ░░ ░░ ░░
Fri ░░ ░░ ░░ ░░ ░░ ▓▓ ▓▓ ▓▓ ▓▓ ░░ ░░ ▓▓ ░░ ░░ ░░ ░░ ▓▓ ░░ ░░ ░░ ░░ ░░ ░░ ░░
Sat ░░ ░░ ░░ ░░ ░░ ░░ ░░ ░░ ░░ ▓▓ ░░ ░░ ░░ ░░ ░░ ░░ ░░ ▓▓ ░░ ▓▓ ▓▓ ▓▓ ░░ ░░

██ High (9+)  ▓▓ Medium (5-9)  ░░ Low (0-5)

Top Activity Hours:
  1. Wed 20:00 (2025-08-27): 13 sessions
  2. Thu 09:00 (2025-08-28): 9 sessions
  3. Tue 10:00 (2025-08-26): 8 sessions
  4. Thu 18:00 (2025-08-28): 7 sessions
  5. Thu 16:00 (2025-08-28): 6 sessions

Install globally with your preferred package manager:

# npm
npm install -g claude-code-analytics

# pnpm
pnpm add -g claude-code-analytics

# bun
bun add -g claude-code-analytics

# volta
volta install claude-code-analytics

Run interactive setup to install the statusline and hooks:

claude-code-analytics config

This lets you:

• Install the statusline and/or lightweight hooks in ~/.claude/settings.json.
• Enable or disable local data collection in ~/.claude/claude-code-analytics.json.

Note: Running claude-code-analytics with no arguments is intended for Claude Code statusline integration and isn’t useful on its own in a terminal. Use subcommands like config, analytics, or quick-stats.

Tip: To confirm the CLI is available on your PATH, try:

claude-code-analytics -h

This should print the help text.

• claude-code-analytics config: Interactive configuration (statusline, hooks, settings).
• claude-code-analytics analytics: Interactive analytics dashboard (tables and ASCII charts).
• claude-code-analytics quick-stats: One-shot 7‑day summary.
• claude-code-analytics install | uninstall: Install/remove statusline and hooks without prompts.
• claude-code-analytics --help | --version: Show help/version.

Default behaviour: When invoked without arguments (or by Claude Code), the binary runs in statusline mode.

• Use Claude Code normally. The statusline and hooks record session metadata locally for analytics.
• View analytics anytime with claude-code-analytics analytics or a quick summary with claude-code-analytics quick-stats.

• Database: ~/.claude/claude-code-analytics.db (SQLite, local-only).
• Config: ~/.claude/claude-code-analytics.json.
• Claude integration: ~/.claude/settings.json (non-destructive; only our entries).
• No telemetry or network calls.

To disable collection, set data_collection: false in ~/.claude/claude-code-analytics.json.

You can override settings per project with a local config file at:

• <project>/.claude/claude-code-analytics.json

Example (this repo): claude-code-analytics/.claude/claude-code-analytics.json

Project config deep‑merges over the global config. Useful for:

• Disabling collection in a specific repo
• Customizing the statusline layout per project

Example:

{
	"data_collection": true,
	"display": {
		"layout": [
			["git", "model"],
			["cost", "duration", "lines_changed"]
		]
	}
}

You can customize the statusline’s look globally or per‑project.

• Config files:
  • Global: ~/.claude/claude-code-analytics.json
  • Project: <project>/.claude/claude-code-analytics.json (overrides global)

Display keys

• display.theme: minimal (default), ascii, or emoji
• display.icons: enable/disable icons globally (default: true)
• display.powerline: boolean (auto‑detect when omitted)
• display.icon_overrides: map of symbol name → string
• display.layout: string[][] to control segment order and lines

Examples

Minimal (default) with Powerline forced:

{
	"display": {
		"theme": "minimal",
		"powerline": true
	}
}

Pure ASCII:

{
	"display": {
		"theme": "ascii",
		"icons": true
	}
}

Emoji (opt‑in) with simple overrides:

{
	"display": {
		"theme": "emoji",
		"icon_overrides": {
			"branch": " ",
			"ahead": "↑",
			"behind": "↓"
		}
	}
}

Notes

• No environment variables are used for theming. Configure via JSON only.
• Project config deep‑merges over global config.

The CLI uses color and layout for readability without relying on heavy emoji.

• chalk for subtle, meaningful color (headings, axes, legends)
• cli-table3 for clean, aligned tables
• asciichart for compact line charts with scaled y‑axis labels
• Powerline glyphs when the terminal supports them (auto‑detected)

Upcoming improvements

• Color cues for session rank, cache efficiency, and tool success
• Theme presets that bundle layout + color choices (e.g., Minimal, Dense)
• Optional ASCII‑only mode across all views for maximal portability

Add segments to display.layout (each inner array is a row). Available segments:

• Core: git, model, cost, duration, lines_changed, tool_performance, cache_efficiency, working_directory
• Gauges: tool_gauge (tool success %), cache_gauge (cache efficiency %), context_gauge (context tokens vs limit)
• Bars: lines_bar (added vs removed)
• Sparklines: cost_sparkline (recent session costs), cache_reads_sparkline (cache read tokens per session)
• Activity: activity_strip (last 24h hourly activity), streak_bar (last 7 days usage)
• Mix: model_mix (top 3 models compact bands)
• Ambient: ambient_wave, ambient_bounce, ambient_marquee, ambient_spinner, ambient_twinkle, ambient_wave_sine

Segment options (under display)

• colors: boolean — enable color cues (default: true)
• bar_width: number — width for gauges/bars (default: 10–12)
• sparkline: { width, height, points } — size and history length for sparklines
• context: { token_limit, mode, recent_n } — context gauge configuration
  • token_limit: default 200000 (200k tokens)
  • mode: latest | session_total | recent_n (default latest)
  • recent_n: number of assistant turns when mode = recent_n

Example multi‑row layout

{
	"display": {
		"theme": "minimal",
		"colors": true,
		"bar_width": 12,
		"sparkline": { "width": 20, "height": 2, "points": 20 },
		"context": {
			"token_limit": 200000,
			"mode": "latest",
			"recent_n": 5
		},
		"layout": [
			["working_directory"],
			["git", "model"],
			["cost", "duration"],
			["tool_gauge", "cache_gauge"],
			["context_gauge"],
			["activity_strip"],
			["streak_bar"],
			["model_mix"],
			["cache_reads_sparkline"],
			["ambient_wave"],
			["ambient_bounce"],
			["ambient_marquee"],
			["ambient_spinner"],
			["ambient_twinkle"],
			["ambient_wave_sine"],
			["cost_sparkline"]
		]
	}
}