José Almeida 6cbf050fa1 fix: prevent agentctl OOM from unbounded diff generation in workspace tracker (#598)
* fix: prevent agentctl OOM from unbounded diff generation in workspace tracker

Add per-file size cap (10MB), binary detection (null-byte in 8KB),
diff output cap (256KB), and total budget (2MB) to workspace tracker
diff enrichment. Strip diff content from event bus path. Surface skip
reasons in frontend. Add pprof endpoints to agentctl.

* fix: address PR review feedback

Close stdout pipe on cmd.Start failure to prevent fd leak.
Limit untracked file read to maxDiffOutputSize (256KB) instead of
maxDiffFileSize (10MB) to reduce peak allocation from ~20MB to ~512KB.

* fix: add filepath.Clean to os.Stat call to satisfy CodeQL path-injection check

* fix: address second round of PR review feedback

Extract all DiffSkipReason strings as named constants. Add diff_skip_reason
to UncommittedFile type removing unsafe cast. Add unit tests for
isBinaryContent, totalDiffBytes, capDiffOutput truncation, and all
enrichUntrackedFileDiffs skip-reason paths.

* fix: use bytes.IndexByte for null-byte check clarity

* fix: show truncation banner when diff has partial content

* fix: revert diff stripping from event bus — frontend needs diffs from this path

E2E tests confirmed the frontend receives git status diffs through the
event bus (agentctl → backend WS → event bus → gateway → frontend).
Stripping diffs broke the changes panel. The per-file size caps in
workspace_git_diff.go already bound the data.

* fix: extract renderDiffContent to keep FileDiffSection under 100-line lint limit

* fix: correct onCommentRun type in renderDiffContent helper

* fix: format long destructuring line for prettier

* fix: move diffSkipReasonLabel to types.ts to keep review-diff-list under 600 lines

Co-authored-by: José Almeida <undefined@users.noreply.github.com>

* fix: coerce optional forceLoad to boolean for renderDiffContent

* fix: shorten className and comment to stay within prettier printWidth

* fix: apply prettier formatting to review-diff-list

* fix: correct off-by-one in untracked file line count

---------

Co-authored-by: claude[bot] <41898282+claude[bot]@users.noreply.github.com>
Co-authored-by: José Almeida <undefined@users.noreply.github.com>
2026-04-17 15:16:18 +01:00
2026-01-16 01:59:19 +00:00
2026-04-16 09:59:38 +01:00
2026-02-17 09:19:42 +00:00

Kandev

Manage and run tasks in parallel. Orchestrate agents. Review changes. Ship value.

Workflows | Roadmap | Contributing | Architecture

Kandev Demo

See all screenshots

What

Organize work across kanban and pipeline views with opinionated workflows and execute multiple tasks in parallel. Assign agents from any provider, and review their output in an integrated workspace - file editor, file tree, terminal, browser preview, and git changes in one place. Terminal agent TUIs are great for running agents, but reviewing and iterating on changes there doesn't scale.

Run it locally or self-host it on your own infrastructure and access it from anywhere via Tailscale or any VPN.

Open source, multi-provider, no telemetry, not tied to any cloud.

Vision

Humans stay in control. Define tasks, build agentic workflows with gates, review every change, decide what ships.

  • Review-first - Humans support production systems. We need to understand (yet) and trust the code that gets deployed.
  • Your workflow - Every team is different, and not every developer uses AI the same way. Define workflows once, share them across the team, and give everyone a consistent process for working with agents - regardless of experience level.
  • Remote agents - Running multiple agents on a large codebase can quickly saturate a local machine. The goal is a single control plane: offload execution to servers, orchestrate from anywhere, including your phone.

Features

  • Multi-agent support - Claude Code, Codex, GitHub Copilot, Gemini CLI, Amp, Auggie, OpenCode
  • Parallel task execution – start and manage multiple tasks from different sources simultaneously, boosting productivity with AI agents
  • Integrated workspace - Built-in terminal, code editor with LSP, git changes panel, embedded vscode and chat in one IDE-like view
  • Kanban task management - Drag-and-drop boards, columns, and workflow automation
  • Agentic workflows - Multi-step pipelines that chain agents through automated task routing. See docs/workflows.md
  • CLI passthrough - Drop into raw agent CLI mode for direct terminal interaction with any supported agent, leverage the full power of their TUIs
  • Workspace isolation - Git worktrees prevent concurrent agents from conflicting
  • Flexible runtimes - Run agents as local processes, in isolated Docker containers or in remote executors like sprites.dev
  • Session management - Resume and review agent conversations
  • Stats - Track your productivity with stats on the completed tasks, agent turns, etc

Supported ACP Agents

Agent Protocol
Claude Code ACP (@zed-industries/claude-agent-acp)
Codex ACP (@zed-industries/codex-acp)
GitHub Copilot ACP
Gemini CLI ACP
Amp ACP (amp-acp)
Auggie ACP
OpenCode ACP

All agents communicate via ACP (Agent Client Protocol). Some agents support ACP natively, while others use ACP adapter packages that bridge their native protocols. CLI Passthrough mode is also available for direct terminal interaction with any agent CLI. If your agent isn't supported yet, open an issue or submit a PR with the integration. See Adding a New Agent CLI for a step-by-step guide.

Bring your own TUI agents

There is support for running any agent as TUI inside a terminal. Just add the cli command in the agent profile settings and the task will start the agent inside a PTY terminal instead of using ACP.

Supported Executors

Executor Description
Local Process Runs the agent as a local process on the host machine
Docker Runs the agent in an isolated Docker container
Sprites Runs the agent in a remote cloud environment via sprites.dev

Each executor uses git worktrees for workspace isolation, preventing concurrent agents from conflicting.

Quick Start

npx kandev

This downloads pre-built backend + frontend bundles and starts them locally. The worktrees and sqlite db will be created in ~/.kandev by default. Should work on macOS, Linux, and Windows (WSL or native).

From Source

# Clone the repository
git clone git@github.com:kdlbs/kandev.git
cd kandev

# Start in production mode
make start

Prerequisites: Go 1.26+, Node.js 18+, pnpm, Docker (optional - needed for container runtimes)

High level architecture

graph LR
    UI[Web UI] --> Backend


        Backend["Backend (Orchestrator)"]


    Backend --> W1 & W2

    subgraph W1[Local Process]
        Agent1[Agent CLI] --- WT1[Worktree]
    end

    subgraph W2[Docker Container]
        Agent2[Agent CLI] --- WT2[Worktree]
    end

We also want to add support for these remote runtimes:

  • Remote SSH - run agents on remote servers over SSH, using docker or local processes with workspace isolation
  • K8s operator - run agents in a Kubernetes cluster, with auto-scaling and resource management.
Development

Project Structure

apps/
├── backend/    # Go backend (orchestrator, lifecycle, agentctl, WS gateway)
├── web/        # Next.js frontend (SSR, Zustand, real-time subscriptions)
├── cli/        # CLI tool (npx kandev launcher)
└── packages/   # Shared UI components & types

Prerequisites

  • Go 1.21+
  • Node.js 18+
  • pnpm
  • Docker (optional)

Running Dev Servers

# Start everything (backend + frontend with auto ports)
make dev

# Or run separately
make dev-backend    # Backend on :8080
make dev-web        # Frontend on :37429

Testing & Linting

make test           # Run all tests (backend + web)
make lint           # Run all linters
make typecheck      # TypeScript type checking
make fmt            # Format all code

Pre-commit Hooks

# Install pre-commit (https://pre-commit.com/#install)
pipx install pre-commit

# Install git hooks
pre-commit install

Comparison to Other Tools

There are a few similar tools in this space, and new ones appearing everyday. Here's what sets this one apart:

  • Server-first architecture - Not a desktop app. Runs as a server you can access from any device, including your phone. Start a task away from your computer and check in on it later.
  • Remote runtimes - Run agents on remote servers and Docker hosts, not just your local machine.
  • Multi-provider - Use Claude Code, Codex, Copilot, Gemini, Amp, Auggie, and OpenCode side by side. Not locked to one vendor.
  • CLI passthrough and chat - Interact with agents through structured chat messages or drop into raw CLI mode for full agent TUI capabilities.
  • Open source and self-hostable - No vendor lock-in, no telemetry, runs on your infrastructure.

Contributing

Contributions are welcome! Please read CONTRIBUTING.md before opening a PR.

See the issue tracker for open tasks.

Acknowledgments

Built with these excellent open-source projects:

Monaco Editor · Tiptap · xterm.js · dockview · CodeMirror · dnd-kit · Mermaid · Recharts · TanStack Table · Zustand · Shadcn/UI · Radix UI · Tailwind CSS

License

AGPL-3.0

S
Description
Upstream mirror of https://github.com/kdlbs/kandev (main). Internal development and testing.
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