@sylus-ai fix: auth token
git commit -m "feat: auto impl"
✓ unit tests passed
PR #142 merged
mock test: all green
issue #38 → implementing
docker exec → passing
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Sylus implements GitHub issues, detects bugs, writes tests, and merges PRs — all on its own.

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How It Works

From issue to merged PR, automatically

Sylus reads, plans, implements, tests, and submits — following standard GitHub protocols every step of the way.

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Trigger with a tag
Add @sylus-ai to your GitHub issue title. Sylus instantly picks it up and analyzes the full context — repository, codebase, related issues, and history.
Instant pickup
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Plan & architect the solution
Sylus understands your codebase architecture, identifies affected files, and generates a structured implementation plan evaluated by multiple AI roles before a single line of code is written.
Multi-role review
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Implement the changes
Sylus writes production-quality code following your project's conventions, patterns, and style. It can build entire new features, remove deprecated ones, or surgically fix a specific bug.
Production-grade code
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Unit test + mock test
Every implementation is validated twice: once with targeted unit tests, and once with a full mock test run that tracks the entire internal processing flow to verify the change works as part of the whole system.
Dual-pass validation
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Submit the PR & close the loop
Once all evaluations pass, Sylus opens a pull request with a full description of changes, test results, and reasoning. It posts progress updates directly in the GitHub issue thread.
GitHub-native workflow
Trigger

One title tag. That's it.

Drop @sylus-ai in any GitHub issue title. Sylus posts updates as it works, then closes the loop with a merged PR.

@sylus-ai — Checkout fails when cart contains out-of-stock item open
👤
dev-maya · 1 hour ago
Reproduced: adding an out-of-stock item then proceeding to checkout throws a 500 on POST /orders/create. Stack trace points to inventory.validate() not handling null quantity. Adding @sylus-ai to handle this.
🤖
sylus[bot] · just now
Picked up. Analyzing inventory.validate() and surrounding call chain...
⚙ Implementing fix · Writing null-guard and unit tests for inventory validation edge cases.
✅ PR #203 opened — "fix: handle null quantity in inventory.validate()" · All tests passing · Ready for review.
Capabilities

What Sylus can do for you

From a quick bug fix to building entire applications — Sylus handles it all through the GitHub issues you already use.

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Ask about your repo
Query Sylus about your codebase architecture, implementation patterns, or how a specific feature works. It reads and understands your entire repository.
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Design new features
Describe a feature in plain language. Sylus drafts an implementation plan, discusses tradeoffs, and once approved — builds it for you end-to-end.
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Remove & refactor safely
Deprecate old features or do large-scale refactors. Sylus traces all usages, removes them cleanly, and verifies nothing breaks in the process.
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Autonomous bug detection
Sylus doesn't wait to be asked. It actively scans for potential issues, edge cases, and regressions — filing and fixing bugs before they reach production.
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Build entire applications
Start a new project from scratch. Describe your app, Sylus scaffolds, implements, and iterates — building production-ready applications issue by issue.
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Let Sylus handle it
Assign any implementation task and step away. Sylus manages the entire lifecycle — planning, coding, testing, and merging — without you needing to intervene.
Testing

Tested twice, every time

Sylus doesn't just write code — it proves that code works. Every implementation goes through a rigorous dual-pass testing pipeline before a PR is ever opened.

The unit pass targets the implementation in isolation. The mock pass runs the entire application with instrumentation enabled, tracking internal processing to ensure the change integrates cleanly with the full system.

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Unit Testing Isolated tests validate the implementation logic directly — edge cases, error handling, and expected output.
🌐
Mock Testing Full application run with instrumentation — tracks the entire internal processing chain to verify system-level correctness.
sylus · test runner
# Unit Test Pass
✓ inventory.validate() returns false on null qty
✓ throws CartError with correct message
✓ handles zero quantity edge case
✓ existing valid items unaffected
✓ POST /orders/create returns 400 on invalid cart
# Mock Test Pass (instrumented run)
▶ checkout flow: add item → validate → order
✓ inventory hook intercepted correctly
✓ error propagated to checkout controller
✓ response matches expected 400 schema
✓ no side effects on order state
9 passed · 0 failed 2.4s total
Multi-Role AI

It evaluates its own decisions

Sylus uses multiple specialized AI roles that review, challenge, and validate each other — preventing hallucinations and ensuring high-quality, accurate output at every stage.

🤖 Sylus Core
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Analyst
Reads and interprets the issue, codebase context, and requirements with full repository awareness.
🏛️
Architect
Designs the implementation plan, evaluates tradeoffs, and challenges structural decisions.
👨‍💻
Engineer
Writes the actual code changes following project conventions and the approved plan.
🕵️
Reviewer
Critically reviews the implementation for correctness, style, security, and hidden regressions.
GitHub Native

Follows GitHub protocols, strictly

Sylus operates entirely within GitHub's standard workflows — no external tools, no custom dashboards, no integrations to maintain. Everything happens where your team already works.

  • Triggered via issue titles — no external CLI or UI
  • Posts real-time progress updates as GitHub comments
  • Opens pull requests with full descriptions and test results
  • Respects branch protection rules and required reviewers
  • Labels, assigns, and closes issues automatically
  • Works with any GitHub repository — public or private
◉   Sylus workflow · Issue #203
Issue detected@sylus-ai tag found in title
done
Repo analyzedFull codebase read & indexed
done
Plan reviewedArchitect + Reviewer sign-off
done
ImplementationCode written & committed
done
Tests passedUnit + mock · 9/9
done
PR #203 openAwaiting human review
active
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