Building blocks and infrastructure for developers

council-diff runs five differently biased personas in parallel on the same decision and exposes their scores, verdicts, strengths, gaps, agreement, and recommendation. Built-in domains cover founder, engineering, investing, career, product, and quant questions, while custom rosters are supported. An optional Oracle reviews difficult or split calls, and the Brier module scores predictions after outcomes resolve. Safe mode can keep the Oracle on a zero-retention model when retention matters.

Use public REST endpoints without signing up or supplying an API key for workflow tasks such as human approval forms, webhook capture, and temporary storage, plus utilities for hashing, encoding, UUIDs, time, and IP lookup. The repository includes Python and JavaScript clients, function-calling definitions, and a Claude skill. Temporary storage, short links, and several webhook records expire automatically after 24 hours.

Instrument synchronous or asynchronous Python code with context-manager spans or decorators, capturing timing, attributes, events, and exception status. Trace data can stay in memory or persist as local JSON files. A terminal dashboard and MCP tools expose individual traces and aggregate statistics, while thread locks and ContextVar tracking preserve isolation across concurrent work.

Define highlights, numbered callouts, labels, steps, and arrows against Playwright locators or selector strings. The tool injects those annotations as DOM elements before capture, so they render sharply and stay anchored to the interface. Replayable JSON specs let documentation screenshots be regenerated after UI changes. It requires Node 18 or newer, Playwright, and an accessible web page.

Wallpaper6 Design Skills packages 40 atomic recipes for turning a source image into a seamless tile. Each recipe combines primitives such as symmetry, density, rotation, twist, graphic effects, and lighting effects, with JSON, JSONL, CSV, and TypeScript formats for different consumers. The repository keeps a legacy 64-skill file for compatibility, but new integrations should use the v2 recipes.json recipes.

ASCENT scaffolds a containerized Express, SQLite-WAL, React, and Vite project, then keeps it organized with ADRs, phase-gated delivery, tests, health checks, and session-resumption files. Its parent Claude skill routes work by engineering role and operation mode, while embedded ascent-* skills audit the project as it grows. The framework is deliberately opinionated, so it suits teams that want strong conventions rather than a minimal or freely chosen stack.

Use the TypeScript SDK to turn fluent component calls into Lowcoder's required DSL, while the companion MCP server exposes app creation, SEO, and related tools to agents. A Claude skill explains the workflow across supported clients. Lowcoder 2.7.0 or newer and a configured instance with an API key are required.

wechat-typesetter is a reusable formatting specification for turning source text into inline-styled HTML that survives the WeChat public-account editor. It defines a two-color card system, eleven components, image-card wrappers, compatibility filters, and six self-checks. The source characters and paragraph structure must remain unchanged, with one output block per input paragraph. It targets WeChat on desktop and mobile; other publishing platforms are untested, and JavaScript is intentionally excluded.

Shadow signs each credit decision with Ed25519 and chains attestations with SHA-256 so a later verifier can detect silent changes to the verdict, reason codes, model manifest, or committed inputs and outputs. The verdict engine uses deterministic rules, while LLM personas provide advisory rationale that cannot alter the decision. The project sends no telemetry and explicitly remains pre-1.0 rather than a compliance product. It is a research layer for lenders building an auditable decision narrative.

Distill Figure helps developers build interactive explanations with plain HTML and ES modules. Its reusable components cover linked graphs, matrices, plots, controls, and chart wrappers, while the render and probe tools check multiple widths and real pointer or keyboard interactions. It is useful when visual polish must be accompanied by working interactions, without a bundler or framework.

Revenue Messaging Framework audits a B2B homepage, scores its messaging, explains weaknesses section by section, and returns rewritten headlines, value propositions, calls to action, and a three-layer narrative. It is meant to clarify what a go-to-market team should change on its own site, combining an open methodology with a Claude Code skill. The output is an audit and rewrite, not a general page builder.

lofi.css adds a paper-scribble look to semantic HTML through one CSS file with embedded handwriting fonts, grayscale styling, annotations, and a 1,745-icon sprite. It uses no JavaScript, dependencies, build step, or external requests, making it suited to early flow discussions rather than polished UI. Its companion Claude skill can generate constrained mockups from descriptions, notes, websites, or whiteboard photos.