Explain GRACE 4 methodology, .grace artifacts, semantic anchors, change lifecycle, verification, and migration boundaries.
npx skills add https://github.com/osovv/grace-marketplace --skill grace-explainer
<skill>
<core_model>
GRACE 4 uses .grace as the durable project model:
.grace/context stores requirements, technology, principles, deployment, and UX constraints..grace/graph stores graph indexes and routed graph documents with GD-*, M-*, and DF-* tags..grace/verification stores verification indexes and routed V-M-* entries..grace/changes stores active and archived C-* change bundles with GraceChangeSpec, optional non-normative design context, and GraceChangePlan.</core_model>
<workflow>
grace-init creates the .grace skeleton.grace-spec creates an active change spec and waits for approval.grace-plan creates assertions, scopes, and T-* implementation tasks.grace-execute runs sequential or parallel-safe mode from the approved plan.grace lint and grace status provide validation and health evidence.grace-migrate; the CLI validates the result but does not convert legacy docs directly.</workflow>
</skill>
Integration with protocols.io API for managing scientific protocols. This skill should be used when working with protocols.io to search, create, update, or publish protocols; manage protocol steps and materials; handle discussions and comments; organize workspaces; upload and manage files; or integrate protocols.io functionality into workflows. Applicable for protocol discovery, collaborative protocol development, experiment tracking, lab protocol management, and scientific documentation.
Analyzes job descriptions and generates tailored resumes that highlight relevant experience, skills, and achievements to maximize interview chances
Generate Excalidraw diagrams from natural language descriptions. Use when asked to "create a diagram", "make a flowchart", "visualize a process", "draw a system architecture", "create a mind map", or "generate an Excalidraw file". Supports flowcharts, relationship diagrams, mind maps, and system architecture diagrams. Outputs .excalidraw JSON files that can be opened directly in Excalidraw.
Build and distribute Expo development clients locally or via TestFlight
Use when you have a written implementation plan to execute in a separate session with review checkpoints
Data structure for annotated matrices in single-cell analysis. Use when working with .h5ad files or integrating with the scverse ecosystem. This is the data format skill—for analysis workflows use scanpy; for probabilistic models use scvi-tools; for population-scale queries use cellxgene-census.
Benchling R&D platform integration. Access registry (DNA, proteins), inventory, ELN entries, workflows via API, build Benchling Apps, query Data Warehouse, for lab data management automation.
Comprehensive molecular biology toolkit. Use for sequence manipulation, file parsing (FASTA/GenBank/PDB), phylogenetics, and programmatic NCBI/PubMed access (Bio.Entrez). Best for batch processing, custom bioinformatics pipelines, BLAST automation. For quick lookups use gget; for multi-service integration use bioservices.
Take osovv/grace-explainer from the repository into ~/.claude/skills for personal
use, or into .claude/skills inside a project.
The agent identifies a skill by the name field in its header. Two skills with the
same name cannot sit side by side — one of them will be ignored.