Interview the user and create an approved GRACE 4 GraceChangeSpec plus optional design-context.xml inside .grace/changes/active/C-*/.
npx skills add https://github.com/osovv/grace-marketplace --skill grace-spec
<skill>
<change_bundle_contract>
.grace/changes/active/C-CHANGE-ID/
spec.xml — normative GraceChangeSpecdesign-context.xml — optional, explanatory onlyplan.xml — created later by grace-plan</change_bundle_contract>
<status_rules>
Create spec.xml as status="draft". Set status="approved" only after explicit user approval. Rejected or cancelled specs move to archive with terminal status. Do not create or edit plan.xml in this skill.
</status_rules>
<strict_contract>
The direct C-* wrapper must contain exactly one meaningful Summary, Goals, Constraints, NonGoals, AcceptanceCriteria, AffectedAreas, and VerificationIntent section. Empty containers are not approval-ready. Semantic anchors are canonical attribute-free XML tags, never attributes or attribute values.
</strict_contract>
<workflow>
C-* change id.spec.xml from references/change-spec-template.xml with exactly one direct C-* wrapper and no empty required section.design-context.xml from its template.spec.xml as status="draft" and report the approval step needed.</workflow>
<hard_rules>
spec.xml is the source of truth for grace-plan; design context never adds requirements.grace lint --path <project-root> --assertions current as a pre-implementation active-baseline check after writing the bundle; never present it as target or final evidence.</hard_rules>
</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-spec 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.