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datamol

Guides agents using the datamol Python package for RDKit-first molecular IO, preparation, fingerprints, similarity, structure generation, visualization, and…

Skill by VectorSpaceLab

IndexedApache-2.0★ 341
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Install

Works with Claude Code, Claude apps, Codex, Cursor, Gemini CLI, GitHub Copilot, VS Code, OpenCode, Goose, Windsurf. Read the repository before you give any tool access to your data.

npx agentmarket install skill/vectorspacelab-datamol

Asks which of your tools to add it to (Claude Code, Codex, Cursor, VS Code, Windsurf, Gemini CLI, Claude Desktop) and shows the change first. See https://agentmart.dev/cli.

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About

Guides agents using the datamol Python package for RDKit-first molecular IO, preparation, fingerprints, similarity, structure generation, visualization, and utility workflows.

Use cases: data

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What this skill can do and what it asks for, from its SKILL.md. Checked Oct 25, 2026.

Tools
No tools found
Secrets
None asked for
Install scripts
None found
Runs as
Python package

Network hosts it talks to 1

  • codeload.github.com · found in install command

Files it touches

  • ~/.claude/skills/datamol

What's inside

Skill name
datamol
Description
Guides agents using the datamol Python package for RDKit-first molecular IO, preparation, fingerprints, similarity, structure generation, visualization, and utility workflows.
License
Apache-2.0
Metadata
disco-role: operating
Instructions
65 lines in SKILL.md · view on GitHub

Before installing

  • Ships executable scripts

Files (27)

  • SKILL.md
  • capability-map.md · references/
  • repo-provenance.md · references/
  • repo-routing-metadata.json · references/
  • troubleshooting.md · references/
  • check_datamol_environment.py · scripts/
  • SKILL.md · sub-skills/fingerprints-similarity/
  • api-reference.md · sub-skills/fingerprints-similarity/references/
  • troubleshooting.md · sub-skills/fingerprints-similarity/references/
  • workflows.md · sub-skills/fingerprints-similarity/references/
  • fingerprint_similarity_smoke.py · sub-skills/fingerprints-similarity/scripts/
  • SKILL.md · sub-skills/molecule-io-prep/
  • api-reference.md · sub-skills/molecule-io-prep/references/
  • data-formats.md · sub-skills/molecule-io-prep/references/
  • troubleshooting.md · sub-skills/molecule-io-prep/references/
  • workflows.md · sub-skills/molecule-io-prep/references/
  • molecule_io_smoke.py · sub-skills/molecule-io-prep/scripts/
  • SKILL.md · sub-skills/structure-generation/
  • api-reference.md · sub-skills/structure-generation/references/
  • troubleshooting.md · sub-skills/structure-generation/references/
  • workflows.md · sub-skills/structure-generation/references/
  • structure_generation_smoke.py · sub-skills/structure-generation/scripts/
  • SKILL.md · sub-skills/visualization-utilities/
  • api-reference.md · sub-skills/visualization-utilities/references/
  • troubleshooting.md · sub-skills/visualization-utilities/references/
  • workflows.md · sub-skills/visualization-utilities/references/
  • visualization_utility_smoke.py · sub-skills/visualization-utilities/scripts/

SKILL.md (first lines)

# Datamol Repo Skill

Use this skill when a task names `datamol`, asks for RDKit-first molecule processing in Python, or needs practical guidance for molecular IO, standardization, fingerprints, descriptors, clustering, conformers, scaffolds, reactions, isomers, visualization, or datamol utility helpers.

Datamol is a Python layer on top of RDKit. Assume user-facing objects are usually `rdkit.Chem.Mol` instances, SMILES strings, pandas dataframes, NumPy arrays, or small molecule files such as SDF/SMI/CSV/XLSX.

## Install And Import

Prefer the public package install used by the project:

```bash
mamba install -c conda-forge datamol
# or, when conda is unavailable:
python -m pip install datamol
```

Minimal import check:

```python
import datamol as dm
mol = dm.to_mol("CCO")
assert dm.to_smiles(mol) == "CCO"
```

Run [scripts/check_datamol_environment.py](scripts/check_datamol_environment.py) when an environment, RDKit install, optional dependency, or basic API smoke check is uncertain.

## Choose A Sub-Skill

- Use [sub-skills/molecule-io-prep/SKILL.md](sub-skills/molecule-io-prep/SKILL.md) for molecule construction, SMILES/InChI/SMARTS/SELFIES conversion, SDF/CSV/XLSX/dataframe IO, standardization, sanitization, salts/solvents, properties, bundled toy datasets, and molar unit helpers.
- Use [sub-skills/fingerprints-similarity/SKILL.md](sub-skills/fingerprints-similarity/SKILL.md) for fingerprints, descriptors, fingerprint arrays, pairwise or cross-distance matrices, clustering, diversity/centroid picking, MCS, and molecular graph matching.
- Use [sub-skills/structure-generation/SKILL.md](sub-skills/structure-generation/SKILL.md) for conformers, 3D features, alignment, atom reordering, fragmentation, assembly, scaffolds/fuzzy scaffolds, reactions, attachments, tautomers, stereoisomers, and structural isomers.
- Use [sub-skills/visualization-utilities/SKILL.md](sub-skills/visualization-utilities/SKILL.md) for molecule grids, SVG/PNG rendering, substructure or lasso highlighting, dataframe rendering, existing conformer display, filesystem helpers, parallel jobs, RDKit log control, and diagnostics.

## Common Workflow Order

1. Start in `molecule-io-prep` to parse inputs, sanitize/standardize molecules, preserve properties, and choose dataframe/file formats.
2. Move to `fingerprints-similarity` when the next step needs numeric descriptors, distance matrices, clusters, diversity selection, MCS, or graph correspondence.
3. Move to `structure-generation` when the task creates new chemistry or 3D structures through conformers, fragments, scaffolds, reactions, or isomer enumeration.
4. Move to `visualization-utilities` when the output needs images, highlights, notebook/file rendering, parallel utility helpers, fsspec checks, or RDKit logging control.

Read [references/capability-map.md](references/capability-map.md) for natural task phrases and the owning sub-skill. Read [references/troubleshooting.md](references/troubleshooting.md) for cross-cutting install/import, RDKit, file-format, optional dependency, and workflow routing failures.

## Safety Defaults

- Keep examples small and deterministic until molecule parsing, sanitization, and output formats are verified.
- Bound expensive or combinatorial chemistry with small `n_confs`, `n_variants`, `timeout`, `timeout_seconds`, `depth`, `max_n_mols`, `num_threads=1`, and `n_jobs=1` first.
- Treat network files, cloud URIs, notebook widgets, and optional renderers as environment-specific; validate them with the nearest troubleshooting reference before relying on them.
- Prefer SVG output for deterministic visual artifacts and use PNG/Pillow only when the caller explicitly needs raster output.
- Preserve row identifiers, molecule properties, and invalid-row handling explicitly when converting between dataframes and molecule files.

## Bundled Checks

- Root environment smoke: [scripts/check_datamol_environment.py](scripts/check_datamol_environment.py)
- IO/prep smoke: [sub-skills/molecule-io-prep/scripts/molecule_io_smoke.py](sub-skills/molecule-io-prep/scripts/molecule_io_smoke.py)
- Fingerprint/similarity smoke: [sub-skills/fingerprints-similarity/scripts/fingerprint_similarity_smoke.py](sub-skills/fingerprints-similarity/scripts/fingerprint_similarity_smoke.py)
- Structure-generation smoke: [sub-skills/structure-generation/scripts/structure_generation_smoke.py](sub-skills/structure-generation/scripts/structure_generation_smoke.py)
- Visualization/utility smoke: [sub-skills/visualization-utilities/scripts/visualization_utility_smoke.py](sub-skills/visualization-utilities/scripts/visualization_utility_smoke.py)

Each script supports `--help` and uses only tiny local examples by default.

## Provenance And Refresh

Read [references/repo-provenance.md](references/repo-provenance.md) before deciding whether this skill is current for a datamol checkout. If the current commit, dirty state, package metadata, or major evidence paths differ from that snapshot, run `refresh-repo-skill` before relying on stale API details.

From VectorSpaceLab/AREX-Skill, Apache-2.0.

More from VectorSpaceLab/AREX-Skill

Signals

Stars
341
Forks
26
Open issues
0
Last commit (this folder)
Aug 26, 2026 (2 months ago)
Last release
Sep 2, 2026 (1 month ago)

From GitHub (fetched Oct 24, 2026).

Details

License
Apache-2.0
First seen
Oct 24, 2026
Last checked
Oct 24, 2026

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datamol skill. Agent Mart. https://agentmart.dev/skills/vectorspacelab-datamol (last updated 2026-10-24)