João Salavisa a627957c5b refactor(task/repo): split sqlite/base.go and add session batch loader (#1058)
* refactor(task/repo): split sqlite/base.go (1486 lines) into schema/migrations/queries

base.go grew to 1.85x the 800-line lint threshold by mixing the Repository
struct, schema initialization, ALTER TABLE migrations, recreate-and-copy
table rebuilds, and historical backfills/heals. Split along those seams:

- base.go (58 lines) keeps only the Repository struct, NewWithDB,
  newRepository, Close, DB.
- base_schema.go owns the initSchema orchestrator, every init*Schema
  function, ensure*Indexes, ensureRunnerProjectionTables, and the
  plan-revision backfill that runs as part of initPlansSchema.
- base_migrations.go owns migrate*, recreateTable[Named], runMigrations,
  the backfillRow type, and every backfill*/heal* function. Verbatim
  function moves with no semantic changes.
- base_queries.go owns sqlLimitClause (still referenced by plan.go,
  document.go, message.go).

To keep golangci-lint (new: true) green after the move:
- initSchema's 17 if-return chain becomes a for-each-step loop so
  cyclomatic complexity drops from 19 to within the 15 limit.
- initInfraSchema and initSessionWorktreeSchema hoist their DDL strings
  into package-level consts (infraSchemaDDL, sessionWorktreeSchemaDDL)
  so each function body fits the 80-line funlen cap.

Step ordering in initSchema is preserved exactly (backfillTaskEnvironments
-> backfillTaskEnvironmentRepos -> healTaskEnvironmentWorkspacePaths ->
healDuplicateTaskEnvironments -> ensureTaskEnvironmentTaskUniqueIndex ->
healSessionTaskEnvironmentIDs) so existing prod DBs continue to migrate
correctly.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

* feat(task/repo): add BatchGetSessionsByTaskIDs to eliminate task-list N+1

Adds a single repository method that returns every task_session for a list
of task IDs in one chunked IN (...) query, grouped by task_id. The
workspace task-list endpoint previously needed three batched calls
(GetPrimarySessionIDsByTaskIDs + GetSessionCountsByTaskIDs +
GetPrimarySessionInfoByTaskIDs); with this loader the handler can derive
primary session ID, session count, and per-task session info from a
single round trip.

- buildInPlaceholders and chunkIDs land in base_queries.go.
  sqliteMaxHostParams=500 keeps each chunk well below SQLite's
  compile-time SQLITE_MAX_VARIABLE_NUMBER (999 on older builds, 32766
  on newer).
- session.go gains BatchGetSessionsByTaskIDs, which reuses
  taskSessionSelectCols / scanTaskSessions / loadWorktreesBatch so the
  returned sessions are indistinguishable from ListTaskSessions output
  (worktrees populated, JSON snapshots decoded). Empty input
  short-circuits with a non-nil empty map.
- SessionRepository interface and Service.BatchGetSessionsForTasks
  expose the new method to the handler layer. The three existing
  *ByTaskIDs methods are left in place because service_events.go still
  uses them for single-task event publishing.
- mockRepository implementations updated in two test files so the
  packages still satisfy the interface.

TestBatchGetSessionsByTaskIDs covers the empty-input short-circuit, the
multi-task (3 x 2) case (primary derivation + no cross-task bleed), and
the asked-for-but-missing case (absent from result map).

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

* perf(task/handlers): use BatchGetSessionsForTasks in task-list endpoint

buildTaskDTOsWithSessionInfo previously issued three batched queries per
request (GetPrimarySessionIDsForTasks + GetSessionCountsForTasks +
GetPrimarySessionInfoForTasks). Each was already chunked by task_id,
but together they were three round trips for data that can be derived
from one. Collapse to a single BatchGetSessionsForTasks call and derive
primary session ID, count, and per-task primary info in memory.

The JSON response shape is unchanged: dto.FromTaskWithSessionInfo
still receives the same pointer-typed arguments, primarySessionID stays
nil when no primary exists, and sessionCount stays nil for tasks with
zero sessions (matches the existing pointer-when-present contract that
the frontend store hydration depends on).

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

* fix(task/handlers): restore JOIN-derived executor type/name in task-list response

buildTaskDTOsWithSessionInfo regressed when it stopped calling
GetPrimarySessionInfoForTasks: extractSessionInfo reads
ExecutorSnapshot["executor_type"] and ExecutorSnapshot["executor_name"],
but those keys exist only on the synthetic snapshot built by the
GetPrimarySessionInfoByTaskIDs LEFT JOIN to executors. The persisted
ExecutorSnapshot JSON uses different keys (e.g. "type" — see
share/builder.go:96), so BatchGetSessionsForTasks alone always yielded
empty executor_type / executor_name fields in the task-list response,
breaking the frontend task card's executor badge.

Fix (caught in code review):
- Handler now calls both BatchGetSessionsForTasks (for primary session
  ID and session count) and GetPrimarySessionInfoForTasks (for the
  JOIN-derived executor type/name and other session info). Two queries
  instead of the original three; correctness preserved.
- New TestGetPrimarySessionInfoByTaskIDs_PopulatesExecutorJoinFields
  seeds an executor + primary session, then asserts the JOIN populates
  ExecutorSnapshot["executor_type"] / ["executor_name"] on the returned
  session. Locks in the contract the handler depends on so a future
  refactor that drops the JOIN fails loudly instead of silently
  emitting empty fields.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

* fix(task/repo): chunkIDs returns empty slice for empty input

chunkIDs previously returned [][]string{nil} for an empty/nil input
(a single chunk whose value is nil). The only current caller
(BatchGetSessionsByTaskIDs) short-circuits empty input before reaching
chunkIDs, so the bug stayed dormant — but any new caller that forgot
the short-circuit would feed a nil chunk to buildInPlaceholders (which
returns "" for nil), produce a `... WHERE task_id IN () ORDER BY ...`
query, and hit a SQL syntax error at runtime.

Make the helper safe by construction: an empty input returns nil
(empty outer slice), so `range chunkIDs(empty, n)` iterates zero
times. Add base_queries_test.go covering:

- Empty/nil input → no chunks (locks the safety contract).
- Single-pass input fits in one chunk.
- Over-threshold input splits into correctly-sized, in-order chunks.
- buildInPlaceholders normal + empty-input cases.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

* fix(task/repo): propagate non-ErrNoRows errors in backfillSingleTask executor lookup

`backfillSingleTask` looked up `executors.type` for the legacy executor
referenced by a session and defaulted to `"local_pc"` on any error.
That silently masked driver failures, schema mismatches, and corruption
— every backfilled task_environment would get the wrong executor_type
without surfacing the underlying problem.

Narrow the default to the legitimate case: only `sql.ErrNoRows` (the
executor row was actually deleted, e.g. legacy session whose executor
is gone) falls back to `"local_pc"`. Any other scan error now aborts
the migration with a wrapped error so operators see the real cause.

Adds TestBackfillSingleTask_DefaultsExecutorTypeOnMissingRow which
seeds a session referencing a non-existent executor id and asserts the
backfill still completes with `executor_type = local_pc` — locks in
the legitimate-fallback path.

Addresses PR #1058 review feedback from cubic & claude.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

* fix(task/repo): chunk ListWorktreesBySessionIDs to honor SQLite var limit

ListWorktreesBySessionIDs built its IN-clause from every input session ID
in one shot. BatchGetSessionsByTaskIDs chunks task IDs at 500 to stay
below SQLITE_MAX_VARIABLE_NUMBER (999 on older builds), but its
loadWorktreesBatch step then handed all sessions in that 500-task chunk
to ListWorktreesBySessionIDs un-chunked — so at modest workloads (500
tasks × ≥2 sessions each = 1000 placeholders) the query fails with
SQLITE_RANGE and bubbles up as a 404 on the task-list endpoint.

ListWorktreesBySessionIDs now applies the same chunkIDs / 500 cap that
BatchGet uses. Body extracted to appendWorktreesForSessionChunk so the
public method stays under the 80-line funlen cap.

New TestListWorktreesBySessionIDs_ChunksOverPlaceholderLimit feeds the
method 1001 non-existent session IDs and asserts it returns cleanly —
without chunking, this fails with SQLITE_RANGE on a default-built SQLite.

Also splits TestBatchGetSessionsByTaskIDs (was 98 lines) into focused
subtests + a shared seedBatchSessions helper, satisfying the test-size
convention. The three sub-scenarios (empty input, multi-task grouping,
missing-task absence) now fail in isolation.

Addresses PR #1058 review feedback from greptile (P1) and claude
(suggestion).

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

* fix(task/repo): port repositories.copy_files migration to split files

Rebased onto main; main added copy_files to runMigrations() and
initTaskSchema() in base.go while our branch had split those into
base_migrations.go and base_schema.go. Cherry-pick both additions
into the correct split files so the schema is consistent.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

---------

Co-authored-by: Kandev Agent <agent@kandev.dev>
Co-authored-by: Claude Opus 4.7 <noreply@anthropic.com>
2026-05-28 23:57:15 +01:00
2026-01-16 01:59:19 +00:00
2026-05-25 10:04:40 +01:00
2026-05-25 21:27:20 +00:00
2026-02-17 09:19:42 +00:00
2026-05-01 21:02:41 +01:00

Kandev

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

Workflows | Run as a Service | Roadmap | Contributing | Architecture | Discord

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, Cursor, Qwen, Factory Droid, iFlow, Kilocode, Pi, Kimi, AWS Kiro, Qoder, Trae
  • 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 mix-and-match agents per step - for example, Claude Code Opus to design a plan, GitHub Copilot Sonnet to implement it, and Codex GPT 5.4 to review the changes. See docs/workflows.md
  • Sub-tasks - Agents can spawn sub-tasks that resume from the parent task's session. Useful for splitting a task that has grown too big, or producing several PRs from the same starting point.
  • 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
  • Multi-repository tasks - Span a single task across multiple repositories, with one worktree per repo, per-repo branches, per-repo PRs, and per-repo grouping in the Changes panel and review dialog
  • 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

Integrations

GitHub Jira Linear

Connect Kandev to the tools your team already uses — pull issues into the kanban, link tasks to PRs, and surface review activity inline.

Supported ACP Agents

Agent Launch
Claude Code npx -y @agentclientprotocol/claude-agent-acp
Codex npx -y @zed-industries/codex-acp
GitHub Copilot npx -y @github/copilot --acp
Gemini CLI npx -y @google/gemini-cli --acp
Amp npx -y amp-acp
Auggie npx -y @augmentcode/auggie --acp
OpenCode opencode acp
Cursor cursor-agent acp (requires Cursor Pro)
Qwen npx -y @qwen-code/qwen-code --acp
Factory Droid npx -y droid exec --output-format acp
iFlow (beta) npx -y @iflow-ai/iflow-cli --experimental-acp
Kilocode npx -y @kilocode/cli acp
Pi npx -y pi-acp
Kimi kimi acp (install Kimi CLI from Moonshot AI)
Kiro kiro-cli-chat acp (install Kiro CLI from AWS)
Qoder qodercli --acp (install Qoder CLI)
Trae traecli acp serve (install Trae IDE CLI)

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

Homebrew (macOS, Linux)

brew install kdlbs/kandev/kandev
kandev

NPX

npx kandev@latest

Requires npm 7+. Installs the CLI plus a platform-matched runtime bundle in one step.

NPM (global)

npm install -g kandev@latest
kandev

Updates

  • brew upgrade kandev
  • npx kandev@latest (always uses the latest published version)
  • npm install -g kandev@latest

The worktrees and sqlite db live in ~/.kandev by default. Works 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 :38429
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, OpenCode, Cursor, Qwen, Droid, iFlow, Kilocode, Pi, Kimi, Kiro, Qoder, and Trae 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, or join our Discord to chat with maintainers and other contributors.

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

Star History

Star History Chart
S
Description
Upstream mirror of https://github.com/kdlbs/kandev (main). Internal development and testing.
Readme 371 MiB
Languages
Go 58.3%
TypeScript 37.6%
HTML 1.9%
JavaScript 0.8%
Python 0.7%
Other 0.5%