Strips formulaic phrasing and grades the residue. It never rewrites your argument and never deletes a sentence silently.

Parses a `.bib` file, removes duplicate entries and writes a normalised bibliography in a fixed field order. Fires before any citation-dependent stage so downstream tools see one consistent shape.

Parses PASCO Capstone `.cap` files into down-sampled CSV/JSON, pre-configures a Capstone run from a lab manual PDF, and drafts a watermarked lab report. It is an interoperability helper for teaching; it never fabricates data and never claims the experiment was performed by the tool.

Cross-checks two or more documents, datasets or extracted fact tables for contradictions and reports each conflict with a severity. Numbers are compared with hard cross-checks, not fuzzy inference.

Produces the first look at a dataset and reports what is in it. **A PASS means 'characterised', never 'clean'.** The profiler never modifies the input.

Tracks how a family of document versions evolved: discovers the version files, aligns them block by block, and reports paragraph-level changes plus the lineage of named concepts across versions. Fires when a set of drafts must be compared over time rather than one pair of files.

Deterministic formula checker for physics and maths. You extract the equation and declare the units; the tool runs five CAS layers plus a pint unit cross-check and returns a strict pass / fail / unknown verdict. Fires on any formula whose correctness matters.

Queries the arXiv API and normalises the response into one JSON file per search. It does not rank by relevance for you beyond the API's own sort.

Audits a labelled dataset for leakage and label errors with scikit-learn, and optionally takes a second opinion from cleanlab. Runs inside the process sandbox; missing dependencies degrade the gate to `UNVERIFIED`.

Atom-conservation gate for molecular formulae and chemical equations. Parses Hill notation, balances both sides and cross-checks with rdkit; runs inside the process sandbox and degrades to `UNVERIFIED` when rdkit is absent.

Extracts every DOI from a draft and verifies it against the Crossref API. A DOI that does not exist fails the gate and stops the pipeline; a network failure is reported as unknown, never as a pass.

Generation meta-skill: renders static scientific charts from tabular data and scans gif/animation frame sequences. Successor to `figure-generator`, adding the gif path and four chart types.

Screens text and Python sources before dispatch: prompt-injection markers in external text, and an AST walk for dangerous call sites (`eval`, `exec`, `os.system`, `subprocess.*`). A screen, not a sandbox.

Mandatory entry point for task folders. Builds the standard four-zone workspace, files every deliverable by provenance, verifies each run with automatic rollback, and keeps the `_broadcast/` index that lets a later session read one summary instead of every original. Fires whenever a task folder is named or attached and work starts inside it.