skharness

Sovereign "phone-drives-my-agent-swarm" harness.

Run many coding/work agents, each in an isolated session, and drive them from a phone over the tailnet — the feel of Claude Code's remote control, but self-hosted on SKWorld infra with no Big-Tech broker.

Why

Claude Code Remote Control has great UX but routes phone↔laptop through Anthropic's relay — it fails the sovereignty test. skharness replicates the experience, not the foundation, over Tailscale + capauth. (Design basis: the 2026-06-13 harness deep-research — pi / cmux / OpenCode / web-shells / Claude Code Remote Control. Full spec in docs/superpowers/specs/2026-06-13-skharness-design.md.)

Architecture

A capauth-gated FastAPI over a SessionManager:

Module Role
gateway.py FastAPI app; bind to a Tailscale IP only (never a public port). verify_caller is the auth seam — a real capauth verifier in prod, a fake in tests.
manager.py SessionManager — ties registry + spawner; spawn creates an isolated worker.
spawner.py Spawner seam — FakeSpawner for CI, TmuxSpawner for real sessions.
registry.py SessionRegistry — track/persist sessions (JSON now; coord-board / skmem-pg later).
session.py Session model — one isolated agent worker.

Mostly reuse: pi (MIT, multi-provider incl. local qwen) as orchestrator + the coord board / skmem-pg as the session/task registry.

Run

pip install -e .            # fastapi + pydantic
# build_app(manager=..., verify_caller=<capauth verifier>) -> FastAPI
# serve bound to the tailscale IP only; auth every call via capauth.

Status

v0.1.0, P0 session core (spec + plan under docs/superpowers/). Mirror: smilinTux (private).

skcode-hostd (P0, read-only)

skcode-hostd is the read-only remote-control daemon over the unified Harness session plane. It owns ONE harness (the claude-code tmux adapter) and exposes exactly three capauth-gated data routes plus a self-contained static client. There is NO write surface: no spawn, inject, kill, dispatch, rename, archive, or model switch. A test (tests/test_daemon.py::test_no_write_surface) proves POST/DELETE return 405 and /inject / /dispatch return 404.

Routes:

Method Path Purpose
GET /api/v1/hosts/self host + harness identity
GET /api/v1/sessions list live + historical sessions
GET /api/v1/sessions/{sid} one session, or 404
WS /api/v1/sessions/{sid}/stream typed SessionEvent stream (?token=)
GET / and /app the static read-only web client

HTTP routes require a Bearer token; the WebSocket takes the token as a ?token= query param (browsers cannot set headers on a WS). The capauth verifier in P0 is a fail-closed deny-all placeholder: real verification lands with the pairing work (spec 7.6), so the daemon rejects every token until then by design.

Run (Tailscale IP only, never 0.0.0.0):

~/.skenv/bin/python -m skharness --host <your-tailscale-ip> --port 9394 --host-id .158

skcode-hostd defaults to :9394 (SKWorld platform spec R0.4). Port :9390 is owned by skcomms.transports.broker_server (its honest, documented default), so the two no longer collide on a shared host. Override with --port <free> and record it in ~/.skcapstone/docs/PORTS.md if :9394 is taken.

Key dates

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  • Released:
Newer release available (0.3.44)

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Requires

Python >=3.10

Provides Extra

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