Agent skills for DeepSeek Harness

Generates a structured Bug Fix Brief (BFB) to document issue corrections.

Find correctness bugs in source code through differential and invariant-based analysis.

Automate Bugherd tasks via Rube MCP (Composio).

Take a PRD and build a dark factory around it - a repository that takes work in as an issue and ships validated code out with nobody at…

Build a new production-ready service from scratch — config management, health checks, graceful shutdown, structured logging.

Build a compact Coval test set from product requirements, observed conversation failures or a coverage gap.

Write SLO-based alert rules with burn rate thresholds and paired runbooks.

Use when creating or restructuring a PlayCanvas application with the direct Engine API, @playcanvas/react, or @playcanvas/web-components…

Create, patch, validate, and render Excalidraw diagrams through deterministic JSON and layout checks before delivery.

This skill should be used when the user wants to build an "MCP app", add "interactive UI" or "widgets" to an MCP server, "render…

Design and spec an analytical dashboard — define the question each chart answers, write the SQL queries, spec the layout and refresh…

Build out the transformation layers (`staging/`, `intermediate/`) of a data product and run dbt against them, following project-wide…

Executes intelligent, incremental build checks and test verifications based on changed files and caching.

Audits, optimizes, and updates build and test verification configurations to ensure robust project validation.

Build or refactor an AppKit app feature on top of SwiftASB using explicit application, window, document, thread, and turn ownership with…

Build an interactive HTML dashboard with charts, filters, and tables.

Build a device driver or protocol handler — I2C sensors, BLE services, MQTT clients, SPI peripherals with interrupt-driven I/O and clean…

Build production-grade infrastructure as code for a service or project.

When to activate: Vite config, bundle optimization, tree shaking, code splitting, module federation, CDN, bundle analysis

Diagnose and fix under-parallelized MSBuild builds.

Build a Proof of Concept (PoC) to validate technical feasibility and retire architectural risks