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YYLO

JUNO AI
open source / Overall score: 1.7

Command-line orchestrator for coding agents that runs each task in a dedicated branch and worktree, with typed task, validation, merge, and release-readiness boundaries and receipt-backed repository changes. It delegates model work to the coding agent the user installs and configures, ships repeatable command workflows, and distributes as the @yylo/cli npm package.

Verified 2026-09-13 via the yylo-dev/yylo repository, its LICENSE, and the npm registry download API.

Openness

5 high confidence
5.0
license
MIT(OSI)
source
public
core-gated
ungated

Verified MIT (standard license text, Copyright (c) 2026 JUNO AI INC.), full CLI source public on GitHub, no paid tier, managed offering, or enterprise directory. The tool delegates model work to the coding agent the user installs and configures.

Adoption

1 medium confidence
1.0

The npm download API returns 933 downloads for @yylo/cli over the trailing month, which bands at level 1 (<10K monthly) on the software scale. @yylo/cli is the product's declared and only distribution channel, so the figure measures the product itself rather than standing in for it. Raw download volume includes CI and mirror traffic, so this is install volume rather than a user count; an early-stage tool, included as the open orchestration layer of a category whose marquee agents are proprietary.

Capability

2 medium confidence
2.0

Narrow, early orchestration tool (933 npm installs a month, 59 stars); capable within its scope - typed boundaries, isolated worktrees, durable receipts - but young and with no third-party benchmark coverage, so scored 2. No peer comparison is recorded because the scale bottoms out before the anchor is reachable.

  • https://yylo.dev recorded 2026-09-13

    homepage describing YYLO as a command-layer system coordinating coding agents from intent through validated code, with isolated worktrees, evidence receipts, review and merge boundaries; npm install of @yylo/cli; no benchmark figure

Verified 2026-09-13