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Contributing to ZeroClaw

Thanks for your interest in contributing to ZeroClaw! This guide will help you get started, whether you’re fixing a typo or building a new provider.

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First-Time Contributors

Welcome — contributions of all sizes are valued. If this is your first contribution:
1

Find an issue

Look for issues labeled good first issue. These are scoped for newcomers and include context to get moving quickly.
2

Pick a scope

Good first contributions include:
  • Typo and documentation fixes
  • Test additions or improvements
  • Small bug fixes with clear reproduction steps
3

Follow the workflow

Fork → branch → change → test → PR:
# Fork the repository and clone your fork
git checkout -b fix/my-change
cargo fmt && cargo clippy && cargo test
# Open a PR against `dev` using the PR template
4

Start with Track A

ZeroClaw uses three collaboration tracks (A/B/C) based on risk. First-time contributors should target Track A (docs, tests, chore) — these require lighter review and are the fastest path to a merged PR.
If you get stuck, open a draft PR early and ask questions in the description.

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Development Setup

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Quick Start

# Clone the repo
git clone https://github.com/zeroclaw-labs/zeroclaw.git
cd zeroclaw

# Enable the pre-push hook (runs fmt, clippy, tests before every push)
git config core.hooksPath .githooks

# Build
cargo build

# Run tests (all must pass)
cargo test --locked

# Format & lint (required before PR)
./scripts/ci/rust_quality_gate.sh

# Release build
cargo build --release --locked

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Pre-push Hook

The repo includes a pre-push hook in .githooks/ that enforces quality checks. Enable it with: 
git config core.hooksPath .githooks
For opt-in strict lint passes: 
# Strict lint pass during pre-push
ZEROCLAW_STRICT_LINT=1 git push

# Strict lint delta pass (changed Rust lines only)
ZEROCLAW_STRICT_DELTA_LINT=1 git push

# Docs quality pass (changed-line markdown gate)
ZEROCLAW_DOCS_LINT=1 git push

# Docs links pass (added-links gate)
ZEROCLAW_DOCS_LINKS=1 git push
To skip hooks during rapid iteration: 
git push --no-verify
CI runs the same checks, so skipped hooks will be caught on the PR.

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Collaboration Tracks (Risk-Based)

Every PR should map to one track to keep review throughput high:
TrackScopeReview Depth
Track A (Low risk)docs/tests/chore, isolated refactors1 maintainer review + green CI
Track B (Medium risk)providers/channels/memory/tools behavior changes1 subsystem-aware review + validation evidence
Track C (High risk)src/security/**, src/runtime/**, src/gateway/**, .github/workflows/**2-pass review, rollback plan required
When in doubt, choose the higher track.

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Architecture: Trait-Based Pluggability

ZeroClaw’s architecture is built on traits — every subsystem is swappable. Contributing a new integration is as simple as implementing a trait and registering it. 
src/
├── providers/       # LLM backends     → Provider trait
├── channels/        # Messaging         → Channel trait
├── observability/   # Metrics/logging   → Observer trait
├── runtime/         # Platform adapters → RuntimeAdapter trait
├── tools/           # Agent tools       → Tool trait
├── memory/          # Persistence       → Memory trait
└── security/        # Sandboxing        → SecurityPolicy

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How to Add Integrations

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Adding a Provider

Create src/providers/your_provider.rs: 
use async_trait::async_trait;
use anyhow::Result;
use crate::providers::traits::Provider;

pub struct YourProvider {
    api_key: String,
    client: reqwest::Client,
}

impl YourProvider {
    pub fn new(api_key: Option<&str>) -> Self {
        Self {
            api_key: api_key.unwrap_or_default().to_string(),
            client: reqwest::Client::new(),
        }
    }
}

#[async_trait]
impl Provider for YourProvider {
    async fn chat(&self, message: &str, model: &str, temperature: f64) -> Result<String> {
        // Your API call here
        todo!()
    }
}
Register in src/providers/mod.rs: 
"your_provider" => Ok(Box::new(your_provider::YourProvider::new(api_key))),

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Adding a Channel

Create src/channels/your_channel.rs: 
use async_trait::async_trait;
use anyhow::Result;
use tokio::sync::mpsc;
use crate::channels::traits::{Channel, ChannelMessage};

pub struct YourChannel { /* config fields */ }

#[async_trait]
impl Channel for YourChannel {
    fn name(&self) -> &str { "your_channel" }

    async fn send(&self, message: &str, recipient: &str) -> Result<()> {
        // Send message via your platform
        todo!()
    }

    async fn listen(&self, tx: mpsc::Sender<ChannelMessage>) -> Result<()> {
        // Listen for incoming messages, forward to tx
        todo!()
    }

    async fn health_check(&self) -> bool { true }
}

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Adding a Tool

Create src/tools/your_tool.rs: 
use async_trait::async_trait;
use anyhow::Result;
use serde_json::{json, Value};
use crate::tools::traits::{Tool, ToolResult};

pub struct YourTool { /* security policy, config */ }

#[async_trait]
impl Tool for YourTool {
    fn name(&self) -> &str { "your_tool" }
    fn description(&self) -> &str { "Does something useful" }

    fn parameters_schema(&self) -> Value {
        json!({
            "type": "object",
            "properties": {
                "input": { "type": "string", "description": "The input" }
            },
            "required": ["input"]
        })
    }

    async fn execute(&self, args: Value) -> Result<ToolResult> {
        let input = args["input"].as_str()
            .ok_or_else(|| anyhow::anyhow!("Missing 'input'"))?;
        Ok(ToolResult {
            success: true,
            output: format!("Processed: {input}"),
            error: None,
        })
    }
}
See the examples directory for complete working examples of custom providers, channels, tools, and memory backends.

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Code Naming Conventions

Use these defaults unless an existing subsystem pattern clearly overrides them:
  • Rust casing: modules/files snake_case, types/traits/enums PascalCase, functions/variables snake_case, constants SCREAMING_SNAKE_CASE
  • Domain-first naming: prefer DiscordChannel, SecurityPolicy, SqliteMemory over Manager, Util, Helper
  • Trait implementers: keep predictable suffixes (*Provider, *Channel, *Tool, *Memory)
  • Factory keys: lowercase and stable (openai, discord, shell)
  • Tests: behavior-oriented names (subject_expected_behavior)

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Pull Request Checklist

  • PR template sections are completed (including security + rollback)
  • ./scripts/ci/rust_quality_gate.sh passes
  • cargo test --locked passes locally
  • New code has inline #[cfg(test)] tests
  • No new dependencies unless absolutely necessary
  • README updated if adding user-facing features
  • Follows code naming conventions and architecture boundary rules
  • No personal/sensitive data in code/docs/tests/fixtures
We use Conventional Commits:
feat: add Anthropic provider
feat(provider): add Anthropic provider
fix: path traversal edge case with symlinks
docs: update contributing guide
test: add heartbeat unicode parsing tests
refactor: extract common security checks
chore: bump tokio to 1.43
Recommended scope keys: provider, channel, memory, security, runtime, ci, docs, tests
  • Minimal dependencies — every crate adds to binary size
  • Inline tests — #[cfg(test)] mod tests {} at the bottom of each file
  • Trait-first — define the trait, then implement
  • Security by default — sandbox everything, allowlist, never blocklist
  • No unwrap in production code — use ?, anyhow, or thiserror

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Reporting Issues

  • Bugs: Include OS, Rust version, steps to reproduce, expected vs actual
  • Features: Describe the use case, propose which trait to extend
  • Security: See SECURITY.md for responsible disclosure
  • Privacy: Redact/anonymize all personal data before posting logs/payloads

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Resources

CONTRIBUTING.md

Full contributor guide with detailed workflows

Examples

Working code examples for all extension points

Architecture Docs

Deep dives into system design and patterns

Discussions

Ask questions and share ideas

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License

By contributing, you agree that your contributions will be licensed under the MIT License.

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