widget-based status line composition with modular data rendering
Implements a pluggable widget architecture where each status line element (model info, git status, token usage, session duration) is a discrete, composable component that processes JSON input from Claude Code CLI and renders formatted output. Widgets are registered in a central registry, executed sequentially, and their outputs are combined with configurable separators (including Powerline arrow glyphs) to produce multi-segment status lines. The system supports up to 3 independent status lines with different widget configurations per line.
Unique: Uses a declarative widget registry pattern where widgets are registered with input/output schemas and executed in a pipeline, enabling runtime composition without code changes. Supports Powerline font integration natively with fallback separators, and allows widgets to declare dependencies on external data sources (git, shell commands) that are resolved at render time.
vs alternatives: More modular than hardcoded status line formatters because widgets are independently testable and composable; more flexible than simple template systems because widgets can execute arbitrary logic and fetch live data.
interactive tui-based configuration with real-time preview
Provides a React/Ink-based terminal UI that allows users to interactively select widgets, configure their properties, choose color themes, and preview the resulting status line in real-time without restarting Claude Code. The TUI reads the current configuration, renders interactive screens for widget selection and property editing, and persists changes back to ~/.claude/settings.json. Configuration changes are immediately reflected in the preview pane, enabling iterative customization.
Unique: Uses React/Ink to render an interactive terminal UI with live preview of status line changes, allowing users to see formatting, colors, and widget output in real-time before persisting configuration. Integrates directly with Claude Code's settings file format, automatically registering the status line hook during configuration.
vs alternatives: More user-friendly than manual JSON editing because it provides visual feedback and validation; more powerful than simple CLI prompts because it supports complex multi-step configuration with preview.
configuration persistence and claude code settings integration
Manages configuration persistence by reading from and writing to ~/.claude/settings.json, the standard Claude Code configuration file. The system validates configuration against a schema, handles version migrations, and automatically registers the ccstatusline status line hook in Claude Code's settings. Configuration changes made in the TUI are immediately persisted, and Claude Code reads the updated configuration on the next execution. Supports configuration backup and rollback.
Unique: Directly integrates with Claude Code's native settings file format, automatically registering the status line hook without requiring manual configuration. Validates configuration against a schema and handles version migrations transparently.
vs alternatives: More seamless than external configuration files because it uses Claude Code's native settings; more reliable than environment variables because configuration is persisted and version-controlled.
stdin-based json input processing with schema validation
Processes JSON input from Claude Code CLI via stdin, parsing the payload and validating it against a predefined schema to ensure required fields are present. The system handles malformed JSON gracefully, providing error messages without crashing. Supports multiple JSON payload formats (different Claude Code versions) through schema versioning. Input validation ensures that widgets receive correctly-typed data and can fail fast on invalid input.
Unique: Implements schema-based validation of Claude Code JSON payloads with support for multiple schema versions, enabling graceful handling of different Claude Code versions without code changes. Validates input before passing to widgets, ensuring data consistency.
vs alternatives: More robust than unvalidated JSON parsing because it catches malformed input early; more flexible than hardcoded field access because schema versioning supports format evolution.
custom widget development framework with typescript support
Provides a framework for developing custom widgets by implementing a standard widget interface (input/output types, render method, configuration schema). Widgets are written in TypeScript, compiled to JavaScript, and registered in the widget registry. The framework provides utilities for common tasks (color formatting, text truncation, number formatting) and handles widget lifecycle (initialization, configuration validation, rendering). Custom widgets can be packaged as npm modules or included inline in the configuration.
Unique: Provides a TypeScript-based widget framework with a standard interface, utilities for common formatting tasks, and a registry system for dynamic widget loading. Supports both inline widget definitions and npm module packages.
vs alternatives: More extensible than hardcoded widgets because custom widgets can be developed independently; more developer-friendly than shell-based extensions because it provides TypeScript types and utilities.
git repository status integration with branch and diff metrics
Integrates with local git repositories to extract and display real-time metrics including current branch name, commit status (staged/unstaged changes), ahead/behind commit counts relative to upstream, and repository state (clean/dirty). The git widget executes git commands (git rev-parse, git status, git rev-list) to gather this data and formats it with customizable separators and color coding based on repository state. Supports both short and long format output.
Unique: Executes git commands directly to fetch live repository state rather than parsing git config files, enabling real-time tracking of branch changes, staged/unstaged modifications, and upstream divergence. Caches git command results within a single render cycle to avoid redundant executions.
vs alternatives: More accurate than parsing .git/HEAD files because it uses official git commands; more efficient than full git status parsing because it only executes commands for enabled metrics.
token usage and model information display from claude code session data
Extracts and formats token usage metrics (input tokens, output tokens, total tokens) and model information (model name, version) from JSON data passed by Claude Code CLI via stdin. The widget parses the JSON payload, calculates token statistics, and formats them with optional unit suffixes (K for thousands) and color coding based on token thresholds. Supports displaying cumulative session tokens or per-request token counts.
Unique: Parses Claude Code's native JSON status payload to extract token and model data, avoiding the need for external API calls or log parsing. Supports configurable formatting (e.g., '12.5K tokens' vs '12500 tokens') and color thresholds based on token consumption patterns.
vs alternatives: More reliable than parsing Claude Code logs because it uses official JSON data; more efficient than querying the API separately because it uses data already provided by Claude Code.
session duration and elapsed time calculation with custom formatting
Calculates and displays elapsed time since the Claude Code session started, parsing session start timestamps from JSON input and formatting the duration in human-readable units (seconds, minutes, hours, days). The widget supports multiple format options including compact (1h 23m), verbose (1 hour 23 minutes), and numeric (1:23:45) formats. Updates in real-time as the session progresses without requiring external time sources.
Unique: Calculates elapsed time client-side from session start timestamp without requiring external time services, enabling accurate duration display even in offline environments. Supports multiple human-readable format options and can apply color coding based on session duration thresholds.
vs alternatives: More accurate than shell-based duration calculation because it uses precise timestamps from Claude Code; more flexible than hardcoded time formats because it supports multiple output styles.
+5 more capabilities