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Heimdall logo Heimdall

A CLI for deterministic agentic workflows from YAML. Agents provide the intelligence; Heimdall owns the structure — phases, gates, feedback loops, and isolated git worktrees.

Open source · MIT Licensed · Documentation preview

Heimdall logo

Why Heimdall?

Make agentic development explicit — structure, validation, and handoffs are first-class, not improvised.

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Deterministic structure

YAML workflows define phases, gates, artifacts, and completion criteria so every run follows the same playbook.

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Feedback loops

Review, validation, correction, and retry paths are part of the workflow model — not bolted on after the fact.

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Isolated execution

Each run uses a separate git worktree so parallel fixes and implementations do not mix changes.

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PR-ready paths

Model workflows from ticket intake through implementation, validation, review, and pull request creation.

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Complex branching

Branching, iteration, and explicit handoffs — built for real team processes, not linear prompt chains.

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Dark mode docs

Read comfortably with Lotus Docs dark mode and Heimdall’s cyan accent palette inspired by the brand mark.

Customise The Lotus Docs Appearance

Much of Lotus Docs’ appearance can be customised. Dark mode is optional (enabled by default) and you can choose a Google font that suites you via the config parameters.

/images/screenshots/lotusdocs_dark_v0.8.webp /images/screenshots/lotusdocs_light_v0.8.webp
/images/screenshots/lotusdocs_google_font_demo_inter_screenshot.webp /images/screenshots/lotusdocs_google_font_demo_lifesavers_screenshot.webp
/images/screenshots/lotusdocs_blue_theme_colour.webp /images/screenshots/lotusdocs_cardinal_theme_colour.webp