seek — DeepSeek native AI coding agent

seek@agent:~/project
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Not an agent demo — a local agent platform that plans, spawns a team of sub-agents, and ships while you sleep. Open source, single static Go binary (~6 MB download), DeepSeek-native.

Install Docs GitHub

why seek is different

Not an agent demo — a platform.

Three claims in the tagline, each backed by shipping code.

Plans before it acts

/plan gates work behind analyze → propose → you approve → execute. Read-only until you approve a step-by-step list; push back mid-run and it re-plans without redoing finished work. State rebuilds from the transcript, so seek -resume picks up exactly where it left off.

Spawns a team of sub-agents

Fans a task out to sub-agents that run in parallel, each isolated in its own git worktree so they never collide. Permissions narrow monotonically; cost aggregates to the parent's status bar. Watch live with /agents · /worktrees.

Ships while you sleep

Zero-daemon scheduling on your OS (launchd / systemd / Task Scheduler). seek cron, a model-scheduled schedule_wakeup, or a CI trigger file runs unattended, commits, and pushes the result to your phone (ntfy / Slack / Discord / any URL).

at a glance

Numbers that matter.

DeepSeek-native engineering — every design choice optimises for cost, speed, and reliability.

$0.0028
per 1M tokens
Prefix-cache hit pricing · 10–100× cheaper than Claude
~6 MB
download
single static Go binary · zero deps · macOS / Linux / Windows
50% off
off-peak discount
UTC+8 00:30–08:30 · live countdown in status bar
95.7%
cache hit rate
After turn 5 on bootstrap benchmark · visible in status bar

interactive demo

See seek in action.

Click a tab to watch a real seek session — unattended autopilot, subagent delegation, memory recall, web fetching, and more.

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timeline

git log --oneline

v0–v7 PRD series all delivered, shipping as v0.8.1. Latest: autopilot, OS sandbox, ACP/Zed, offline OCR, /goal.

3992a9f (v0.8) 2026-05 autopilot fleet · OS sandbox (seatbelt/landlock) · ACP/Zed · offline OCR · /goal autonomous loop
a3f210c (v0.7) 2026-05 cron + schedule_wakeup + file triggers + OS notifications · push-to-phone webhooks
d8b4e6f (v0.6) 2026-04 subagent + worktree isolation · code-review · background jobs + monitor · semantic references
7c2a19b (v0.5) 2026-03 checkpoint undo/redo · shell-hooks · webfetch SSRF-safe · MCP client
f9e1d45 (v0.4) 2026-02 plan-mode v2 (propose/execute) · skill v2 package format · permission refactor
b4a882c (v0.3) 2026-01 skill lifecycle (create/install/update) · ask_user TUI picker · /steer
e05d1f7 (v0.2) 2025-12 three-tier memory L/M/S · session JSONL persistence · skill loader
1a9c34e (v0.1) 2025-11 DeepSeek-native core · multi-provider · terminal TUI · basic tool set

pricing

Open source. Pay only for API.

seek is MIT-licensed and free. You only pay your LLM provider — and DeepSeek is 10–100× cheaper than alternatives.

$0.0028
V4-Flash · cache hit
per 1M input tokens
$0.0036
V4-Pro · cache hit
thinking mode enabled
$0.30
Claude Sonnet 4 · cache hit
for comparison — 107× more对比参考——107 倍差价
50% off
off-peak discount
UTC+8 00:30–08:30 · live timer
¹ V4-Pro at 75%-off promo rate. 95.7% cache hit rate on bootstrap benchmark — visible in status bar.

capabilities

30+ tools, one binary.

Scroll to explore every tool seek ships with — autonomy, agent, memory, web, safety, and developer experience.

install

One binary, anywhere.

No runtime deps, no package manager required. Pick your path.

macOS / Linux (curl pipe)

Pulls the latest release — no Go toolchain needed.

$ OS=$(uname -s | tr '[:upper:]' '[:lower:]')
$ ARCH=$(uname -m | sed 's/x86_64/amd64/;s/aarch64/arm64/')
$ VER=$(curl -fsSL https://api.github.com/repos/whyiyhw/seek/releases/latest | sed -nE 's/.*"tag_name":[[:space:]]*"v([^"]+)".*/\1/p')
$ curl -fsSL "https://github.com/whyiyhw/seek/releases/download/v${VER}/seek_${VER}_${OS}_${ARCH}.tar.gz" | sudo tar -xz -C /usr/local/bin seek

Go install (from source)

Requires Go 1.25+. One command — installs to $GOPATH/bin.

$ go install github.com/whyiyhw/seek/cmd/seek@latest

Windows

Download from Releases or run the PowerShell one-liner below. Use Windows Terminal — the legacy blue PowerShell window mis-renders the TUI.

PS> $v=(irm https://api.github.com/repos/whyiyhw/seek/releases/latest).tag_name; irm "https://github.com/whyiyhw/seek/releases/download/$v/seek_$($v.Substring(1))_windows_amd64.zip" -OutFile seek.zip; Expand-Archive -Force seek.zip -Dest .; Remove-Item seek.zip; .\seek.exe -install; echo "Done -- restart shell, then run: seek"

Upgrade

Atomic in-place update. Pulls the latest release, verifies sha256, replaces the binary — no re-download needed. macOS / Linux: requires sudo when installed to /usr/local/bin (the default).

$ sudo seek -upgrade  # macOS / Linux
PS> seek -upgrade  # Windows (user-owned PATH)
First run walks you through provider setup — no manual export needed.
macOS Gatekeeper: curl | tar doesn't trigger quarantine. If your browser download is blocked: xattr -d com.apple.quarantine seek.
No sudo? Install to ~/.local/bin instead — just change -C /usr/local/bin to -C ~/.local/bin, then add it to your PATH.