AgentIndex icon
AgentIndex
bub logo
bub
★ 1.7k
vs
reticle logo
reticle
★ 1.3k

bub vs reticle

bub: Bub is a small Python agent runtime built on agents.md and Agent Skills, where every stage of a turn is a pluggy hook that plugins can override. Context is rebuilt from append-only tape records, and the same pipeline serves the CLI, Telegram and custom channels.; reticle: Reticle puts a dev-only SDK inside your web or desktop app so a coding agent can look, act, observe and assert against the running app. Each check ends in a pass, fail or cannot-tell verdict with the network request, state change or console line that decided it and the source line to fix.

01

TL;DR

bub logo
bubDev Tooling · ★ 1.7k

Running an agent in a group chat shared by several people

Read bub full review →
reticle logo
reticleDev Tooling · ★ 1.3k

Check that a coding agent's fix actually works in the running app

Read reticle full review →
02

Side-by-Side Comparison

Field
bub logobub
reticle logoreticle
Category
Dev Tooling
Dev Tooling
Stars
★ 1.7k
★ 1.3k
License
Apache-2.0
NOASSERTION
Install Command
curl -fsSL https://bub.build/install.sh | bash
npm install -g @reticlehq/server && claude mcp add reticle -s user -- npx @reticlehq/server mcp
Updated
2d ago
1d ago
Open Source
Yes
Yes
Website
↗ Visit
↗ Visit
GitHub
↗ GitHub
↗ GitHub
Tags
agent-runtime, python, plugins
agent-skill, agent-skills, agent-testing
03

Features

bub logobub
01Turn pipeline where every stage, from resolve_session to dispatch_outbound, is a replaceable hook
02Tape context rebuilt from append-only records, easy to inspect and replay
03One runtime across CLI chat, one-shot runs and a Telegram gateway
04Agent Skills discovery and plugin packaging through Python entry points
reticle logoreticle
01Verdicts of yes, no or unknown with the evidence and file:line attached
02Reads network responses, store state (zustand, Redux, TanStack Query, Pinia) and console errors
03Saved flows that replay deterministically without an AI model
04CI gate that fails changes touching a saved flow without a new passing run
05SDK excluded from production builds; bridge listens only on 127.0.0.1
04

Use Cases

bub logobub
↳Running an agent in a group chat shared by several people
↳Building a custom agent by overriding only the prompt or model stage
↳Experimenting with replayable, auditable agent context
reticle logoreticle
↳Check that a coding agent's fix actually works in the running app
↳Catch silent failures such as a 500 response behind a success message
↳Guard key user journeys in CI with replayable flows
05

Best For

bub logobub
EssentialTrending
reticle logoreticle
EssentialTrending
FAQ

FAQ

What is the difference between bub and reticle?
Both bub and reticle are in the Dev Tooling category. bub has 1.7k stars, while reticle has 1.3k stars.
Which is better, bub or reticle?
The best choice depends on your use case. Choose bub if Running an agent in a group chat shared by several people, and reticle if Check that a coding agent's fix actually works in the running app.
Is bub free or open source?
Yes, bub is open source on GitHub (Apache-2.0).
Is reticle free or open source?
Yes, reticle is open source on GitHub (NOASSERTION).
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Related

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