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Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

Unreleased

Planned

  • GitHub Models API Provider: Access 40+ models (DeepSeek, Llama 4, Grok 3) + embeddings
  • Agent Creation Command: codetyper agent create <name> --prompt "..."
  • Session Revert/Undo: Revert to any previous message
  • File Watching: Detect external editor changes
  • Anti-Research Constraint: Max 3 grep calls before forcing a decision

0.5.2 - 2026-03-30

Fixed

  • npm Package Build: Dist was stale (from Feb 16). Rebuilt with all 0.5.x changes.
  • Package Dependencies: Updated packages.

0.5.1 - 2026-03-30

Fixed

  • Version Sync: Fixed version mismatch between package.json and version.json.
  • Documentation: Updated changelog and README.

0.5.0 - 2026-03-30

Added

  • complete_task Tool: Agents must explicitly signal completion via tool call. Text-only responses no longer stop the agent loop — the runtime enforces completion contracts.
  • ask_user Tool: LLM can present selectable options to users via TUI modal with keyboard navigation, 1-9 quick pick, and custom answer support.
  • codetyper agent list Command: Shows all available agents (built-in + project + global) in a formatted table. Created autonomously by the agent in 8 iterations.
  • Debug File Logger: Comprehensive logging to /tmp/codetyper.cli.log when ENV=DEV. Logs every API call (headers, payload, response), tool execution (full args, duration), agent iterations, permission checks, user prompts, and errors with stack traces.
  • Startup Instrumentation: Wraps token refresh, session ops, MCP connections, provider availability, hooks, and compaction with debug logging.
  • Tool Filter Profiles: 7 profiles (full, explore, code, test, review, plan, chat) limiting which tools are sent per request. Default "code" profile = 10 tools (was 23).
  • Context Budget Enforcement: Agent loop estimates tokens before each LLM call and trims old messages when approaching 80% of the model's context limit.
  • Copilot API Optimizations: X-Initiator: agent/user header, cache_control: ephemeral on system messages, reasoning_opaque preservation across turns, Copilot-Vision-Request header for image detection.
  • Grep maxResults Parameter: Default limit of 200 results to prevent context explosion.
  • Shell Metacharacter Validation: validateFilePath() rejects injection patterns (& | ; $ \ () {} [] < > !`) in read/write/edit/multi-edit/apply-patch tools.
  • Sensitive File Guard on Multi-Edit: Blocks editing .env, credentials, and other sensitive files in batch edits.
  • Theme Persistence: Saves theme selection to ~/.config/codetyper/theme.json, loads on startup.
  • Tab Key Navigation: Tab opens agent selector, Shift+Tab opens mode selector.
  • Tool Output Truncation: 20KB cap for search tools (grep, bash, web_fetch). Read/edit tools skip truncation to preserve file integrity.

Changed

  • Default Model: gpt-5-mini → gpt-4.1 (free/unlimited, 111K context, 16K output — 10x more efficient per token).
  • "auto" Model Removed: Copilot API rejects model: "auto". Removed from model selector, header, and all fallback paths.
  • System Prompts Reduced ~75%: Base, balanced, and thorough tier prompts trimmed. Copilot provider prompt gutted (-4.4K chars). Total system prompt from ~14K to ~4K chars.
  • Agent Autonomy: "Responding with only a plan or explanation is FAILURE. You MUST execute via tools." Adopted from crush's coder.md.tpl.
  • Plan Approval Threshold: 3+ files → 5+ files. Simple tasks (single-file, docs, config) execute immediately without plan approval.
  • MAX_PARALLEL_TOOLS: 3 → 10 for faster parallel tool execution.
  • MCP Tools Scoped: Only included in "full" profile. Code/test/plan profiles get built-in tools only (eliminates 9 mcp_filesystem_* tools from most requests).
  • Model Lists Verified: Purged 8 non-functional models (codex variants, raptor-mini) via curl testing against Copilot API. 16 verified working models remain.
  • Compaction Triggers: 80% → 60% threshold for earlier context compression.
  • Prompt Instructions: "Use edit not write — write OVERWRITES entire file", "Read files with limit=500+", "If apply_patch fails, use edit immediately."

Fixed

  • 52 Bug Fixes across all subsystems:
    • Security: Command injection validation, multi-edit sensitive file guard, Copilot token expiry buffer mismatch.
    • Permissions: Path normalization (absolute vs relative), boundary-aware substring matching, absolute directory patterns.
    • Memory: Capped unbounded stores — logs (2K), usage history (500), todo history (50), multi-agent instances (20), conflicts (50).
    • Sessions: Context files restored on session resume, not cleared after first message, fork state cleanup on switch, graceful shutdown.
    • TUI: Double @ in file picker, duplicate keyboard handlers, status bar timer leaks, streaming batch updates, modal event blocking, theme persistence.
    • Providers: Ollama tool message format, default model qwen3-coder:30b, tool capability detection, error body reading, cascade availability check, cascade audit crash protection.
  • apply_patch Failures: Now returns detailed hunk failure reasons and suggests edit tool as fallback. Prevents 3x retry of same broken patch.
  • Modal Keyboard Freeze: Removed blanket useKeyboard(stopPropagation) from CenteredModal that blocked all child component keyboard handlers (/model, /theme, etc.).
  • File Deletion Prevention: Tool output truncation no longer applies to read/edit results (previously truncated file content caused model to overwrite with partial data, deleting 951 lines).
  • Cloud Sync Race: Replaced boolean flag with Promise-based mutex for concurrent sync protection.
  • Dead Code: Deleted entire src/api/copilot/ directory (unused duplicate of providers layer).
  • Error Handling: Silent .catch(() => {}) blocks replaced with debug logging. Uncaught exceptions and unhandled rejections now log stack traces before exit.

0.4.7 - 2026-02-16

Fixed

  • Session Resume: Fixed --resume not finding sessions created in the current session
    • New sessions now properly use the session persistence system IDs
    • Resume link on exit now displays the correct session ID instead of "unknown"

0.4.6 - 2026-02-16

Added

  • Copilot Usage Display: Real-time GitHub Copilot quota monitoring in the Activity Panel
    • Shows Premium Requests, Chat, and Completions quotas with color-coded progress bars
    • Color indicators: Green (>40% remaining), Yellow (5-40%), Red (≤5%)
    • Auto-refreshes every 60 seconds and after task completion
    • Displays quota reset date
    • Available immediately when using GitHub Copilot provider
  • Enhanced /usage Command: Color-coded progress bars matching the Activity Panel display

0.4.5 - 2026-02-14

Added

  • Session Stats on Exit: Display detailed session statistics when quitting the CLI
    • Total usage estimate and Premium requests
    • API time spent and total session time
    • Total code changes (+additions/-deletions)
    • Breakdown by AI model with token usage (input/output/cached)
    • Resume command with session ID for easy session continuation
    • CODETYPER ASCII art banner on exit
  • Activity Panel Toggle: Ctrl+O keybind to show/hide the activity panel (context/tokens, modified files)

Fixed

  • Session Summary Persistence: Fixed exit message being cleared on exit
  • Terminal Garbage on Exit: Fixed 997;1n text appearing on exit, caused by unanswered DECRQM mode 997 query from the TUI renderer

0.4.4 - 2026-02-12

Fixed

  • Minor fixes and stability improvements

0.4.3 - 2026-02-11

Added

  • Pink Purple Theme: New built-in theme with hot pink primary, purple secondary, and deep magenta accent on a dark plum background

Fixed

  • Image Paste Race Condition: Fixed images being silently dropped when pasting via Ctrl+V. The clearPastedImages() call in the input area was racing with the async message handler, clearing images before they could be read and attached to the message
  • @ File Picker: Now works at any cursor position in the input, not just when the input is empty
  • / Command Menu: Now works at any cursor position in the input, not just when the input is empty

0.4.2 - 2026-02-10

Fixed

  • Exit Message Service: Fixed exit message service to use proper constants

0.4.1 - 2026-02-08

Fixed

  • Minor bug fixes and improvements

0.4.0 - 2026-02-06

Added

  • Text Clipboard Copy/Read: Cross-platform text clipboard operations

    • macOS (osascript/pbpaste), Linux (wl-copy/xclip/xsel), Windows (PowerShell)
    • OSC 52 escape sequence support for SSH/tmux environments
    • Mouse selection auto-copies to system clipboard via onMouseUp
    • Ctrl+Y keyboard shortcut for copy-selection
    • Unified readClipboard() returning text or image with MIME type
    • Shared runCommand helpers extracted from clipboard-service

  • Plan Approval Gate: User confirmation before agent executes plans

    • Plan approval modal with keyboard navigation
    • Multiple approval modes: auto-accept, manual approve, feedback
    • Inline permission prompt for plan execution

  • Execution Control: Pause, resume, and abort agent execution

    • Ctrl+P to toggle pause/resume during execution
    • Ctrl+Z to abort with rollback
    • Ctrl+Shift+S to toggle step-by-step mode
    • Enter to advance step when waiting for confirmation

  • Parallel Agent Execution: Unified agent registry with concurrent task support

  • Thinking Tag Parser: Parse and display reasoning/thinking tags from LLM responses

Changed

  • Inline Permission Prompt: Improved TUI layout for permission prompts
  • Clipboard Service Refactored: Extracted shared runCommand into @services/clipboard/run-command

Security

  • Sensitive File Protection: Auto-backup before modifying sensitive files (.env, credentials, etc.)
  • Dangerous Command Blocking: Block destructive bash commands (rm -rf, sudo, etc.)

Fixed

  • Rollback now correctly extracts file path from tool arguments
  • Permission handling improvements

0.3.0 - 2025-02-04

Added

  • System Prompt Builder: New modular prompt system with modes, tiers, and providers
    • Separate prompt templates for different agent modes
    • Provider-specific prompt optimizations
    • Tier-based prompt complexity (basic, standard, advanced)

Changed

  • Restructured src/ Modules: Consistent internal organization across all modules
    • Deleted legacy index.ts barrel exports
    • Improved import paths with path aliases
    • Better separation of concerns

Removed

  • Legacy React/Ink TUI: Removed old TUI implementation
    • Migrated fully to Solid.js + OpenTUI
    • Fixed TypeScript errors from removal

Fixed

  • Import paths in utils folder
  • MCP initialization issues

0.2.4 - 2025-02-01

Fixed

  • MCP server connection stability improvements
  • Various MCP-related bug fixes

0.2.3 - 2025-01-31

Fixed

  • MCP form input handling for server configuration
  • Reactive MCP server state updates
  • MCP server issues and stability

Added

  • BRAIN_DISABLED flag for disabling Brain API integration
  • Ollama tool call formatting improvements

0.2.2 - 2025-01-30

Fixed

  • App store initialization issue
  • General stability improvements

0.2.1 - 2025-01-29

Added

  • MCP Server Searcher: Browse and discover MCP servers
    • Interactive browser with /mcp browse
    • Search servers with /mcp search <query>
    • Filter by category (database, web, AI, dev-tools, etc.)
    • View server details and required environment variables
    • One-click install with /mcp install <id>
    • 15+ curated verified servers from Anthropic
    • Popular servers list with /mcp popular
    • Category listing with /mcp categories

0.2.0 - 2025-01-28

Added

  • Hooks System: Lifecycle hooks for extensibility

    • 6 hook events: PreToolUse, PostToolUse, SessionStart, SessionEnd, UserPromptSubmit, Stop
    • Exit code control flow (0=allow, 1=warn, 2=block)
    • JSON input/output via stdin/stdout
    • Modified arguments via updatedInput
    • Global + local configuration support
    • Configurable timeout per hook

  • Plugin System: Custom tools, commands, and hooks

    • Plugin manifest with version and capabilities
    • Custom tool definitions via TypeScript
    • Custom slash commands via Markdown with frontmatter
    • Plugin-specific hooks
    • Global (~/.config/codetyper/plugins/) + local (.codetyper/plugins/)
    • Dynamic tool/command registration

  • Session Forking/Rewind: Branch and time-travel session history

    • Named snapshots at any point in conversation
    • Rewind to any snapshot by name or index
    • Fork branches from any snapshot
    • Switch between forks
    • Suggested commit messages based on session content
    • Commands: /snapshot, /rewind, /fork, /forks, /switch

  • Vim Motions: Vim-style keyboard navigation

    • 4 modes: Normal, Insert, Command, Visual
    • Scroll navigation (j/k, gg/G, Ctrl+d/u)
    • Search with highlighting (/, n/N)
    • Command mode (:q, :w, :wq, :nohl)
    • Mode indicator in status line
    • Configurable via settings.json

0.1.80 - 2025-01-27

Fixed

  • Prompt template issues
  • Agent response formatting

0.1.79 - 2025-01-26

Changed

  • Version bump with minor fixes

0.1.78 - 2025-01-25

Changed

  • Improved Agent Autonomy: Better task execution flow
  • Enhanced Diff View: Improved readability for file changes
    • Better color contrast
    • Clearer line indicators

0.1.77 - 2025-01-24

Added

  • Debug Log Panel: View internal logs for troubleshooting
  • Centered Modals: Improved modal positioning and appearance

Fixed

  • Multiple UX issues
  • Modal positioning on different terminal sizes
  • Input focus handling

0.1.76 - 2025-01-23

Fixed

  • Installation issues with npm link
  • Package distribution problems

0.1.75 - 2025-01-22

Fixed

  • Repository URL in package.json
  • Package metadata corrections

0.1.0 - 2025-01-16

Added

  • Interactive TUI: Full terminal UI using Solid.js + OpenTUI

    • Message-based input (Enter to send, Shift+Enter for newlines)
    • Log panel showing conversation history
    • Status bar with session info
    • ASCII banner header

  • Permission System: Granular control over tool execution

    • Interactive permission modal with keyboard navigation
    • Scoped permissions: once, session, project, global
    • Pattern-based matching: Bash(command:args), Read(*), Write(path), Edit(*.ext)
    • Persistent storage in ~/.codetyper/settings.json and .codetyper/settings.json

  • Agent System: Autonomous task execution

    • Multi-turn conversation with tool calls
    • Automatic retry with exponential backoff for rate limits
    • Configurable max iterations

  • Tools:

    • bash - Execute shell commands
    • read - Read file contents
    • write - Create or overwrite files
    • edit - Find and replace in files
    • glob - Find files by pattern
    • grep - Search file contents

  • Provider Support:

    • GitHub Copilot (default) - OAuth device flow authentication
    • Ollama - Local server (no auth)

  • Cascading Provider System: Intelligent routing between providers

    • Quality scoring per task type
    • Automatic provider selection based on performance

  • Session Management:

    • Persistent session storage
    • Continue previous sessions with --continue
    • Resume specific sessions with --resume <id>

  • CLI Commands:

    • codetyper - Start interactive TUI
    • codetyper <prompt> - Start with initial prompt
    • codetyper login <provider> - Authenticate with provider
    • codetyper status - Show provider status

  • Theme System: 14+ built-in color themes

  • Todo Panel: Task tracking with Ctrl+T

  • Home Screen: Welcome screen with version info

Version History Summary

Version Date Highlights
0.4.7 2026-02-16 Fixed session resume functionality
0.4.6 2026-02-16 Copilot usage display with color-coded progress bars
0.4.5 2026-02-14 Session stats on exit, activity panel toggle, exit improvements
0.4.4 2026-02-12 Minor fixes and stability improvements
0.4.3 2026-02-11 Pink-purple theme, image paste fix, @/commands anywhere
0.4.2 2026-02-10 Exit message service fixes
0.5.2 2026-03-30 npm package rebuild (stale dist from Feb)
0.5.1 2026-03-30 Version sync fix
0.5.0 2026-03-30 Agent completion architecture, tool filtering, 52 bug fixes, API opts
0.4.1 2026-02-08 Minor bug fixes
0.4.0 2026-02-06 Clipboard copy/read, plan approval, execution control, safety features
0.3.0 2025-02-04 System prompt builder, module restructure, legacy TUI removal
0.2.x 2025-01-28 - 02-01 Hooks, plugins, session forks, vim motions, MCP browser
0.1.x 2025-01-16 - 01-27 Initial release, TUI, agent system, providers, permissions