LeylineAHENSYA
Signals
For agents Sign in 100 components
Catalogue

Signals

Ranks Pulse

For agents

MCP, API and llms.txt

On this device

Context

Machine forms: JSON · Markdown

[ Component ]

appseed

bb

bb is an MIT-licensed, self-hosted agentic IDE that coordinates installed coding-agent CLIs in persistent, steerable threads. Its first-class control surfaces are a desktop app, web app, CLI, and HTTP API. The project’s central differentiator is that much of its UI/workflow surface is implemented as plugins, so an agent can extend the IDE itself rather than only working inside a fixed product.

MCP noAPI yesCost unknownLicence MIT

Interface

cli

Command-line interface

Interface

http

HTTP API

Open homepageOpen repository

[ Observed sample ]

Frequency in Leyline's observed sample

The count is distinct observed stacks. It is not a Score input.

This component is not in Leyline's observed sample.

Record cmp_bb

Open ranks

[ Score explain ]

Why the Score is 10

How Score works

Score v2 uses only observed signals. The displayed contribution is weight × value × 100. Missing factors are insufficient evidence.

Score factor

GitHub health

18% weight. A licence is declared.

Value 0.15 · 2.7 points

18% weight × 0.15 value

2.7 points

A licence is declared.

Score factor

Agent use

16% weight. insufficient evidence

insufficient evidence

insufficient evidence

insufficient evidence

insufficient evidence

Score factor

Human notes

14% weight. insufficient evidence

insufficient evidence

insufficient evidence

insufficient evidence

insufficient evidence

Score factor

Composability

16% weight. insufficient evidence

insufficient evidence

insufficient evidence

insufficient evidence

insufficient evidence

Score factor

Checklist

10% weight. No MCP surface is declared. An API is declared. Cost is unknown. 1 of 3 checklist fields are complete.

Value 0.33 · 3.3 points

10% weight × 0.33 value

3.3 points

No MCP surface is declared. An API is declared. Cost is unknown. 1 of 3 checklist fields are complete.

Score factor

Evidence quality

14% weight. 3 sources cover 1 evidence types. The latest dated evidence is 2026-08-06. Freshness is omitted unless observed as a signal.

Value 0.26 · 3.7 points

14% weight × 0.26 value

3.7 points

3 sources cover 1 evidence types. The latest dated evidence is 2026-08-06. Freshness is omitted unless observed as a signal.

Score factor

Benchmarks

12% weight. insufficient evidence

insufficient evidence

insufficient evidence

insufficient evidence

insufficient evidence

Total9.70 → 10 after rounding

Agent use: insufficient evidence

Human notes: insufficient evidence

Composability: insufficient evidence

Benchmarks: insufficient evidence

[ Claims ]

Publisher-asserted record

Claims are what the publisher declares. Score uses observed signals, not these assertions, except for checklist fields derived from interfaces. MCP, API, cost, and license claims are marked verified, unverified, or contradicted from intake evidence.

Kind
app
Interfaces

Interface

cli

Command-line interface

Interface

http

HTTP API

Functions

Function

Compose

assemble other functions

Compose Browse Compose

[ Capability slices ]

Compose the useful parts.

compose

Compose

bb is an MIT-licensed, self-hosted agentic IDE that coordinates installed coding-agent CLIs in persistent, steerable threads. Its first-class control surfaces are a desktop app, web app, CLI, and HTTP API. The project’s central differentiator is that much of its UI/workflow surface is implemented as plugins, so an agent can extend the IDE itself rather than only working inside a fixed product.

unknownCompose with this

[ Relations ]

Derived alternatives and shared slots

  • Alternative toHark Shared functions compose. Same kind and overlapping capability.
  • Alternative toshadcn/ui Shared functions compose. Same kind and overlapping capability.

[ Signals ]

Observed evidence

Each signal carries source, method, and observedAt. Unobserved metrics stay insufficient evidence.

  • humanCompendium resource card ×3

No social source is stored.

[ Notes ]

No notes are stored.