ENSDF

Use this skill when performing editorial review of ENSDF comment lines. Checks grammatical precision, subject-verb agreement, hyphenation, technical terminology, and ENSDF text-notation correctness. Suitable for editorial checks, grammar reviews, manuscript audits, or ENSDF comment validation in Nuclear Data Sheets manuscripts.

Use this skill when cross-checking all quoted values in cL J$ comment lines against L-record and G-record data fields in ENSDF adopted files. Detects mismatches in gamma energies, multipolarities, level energies, J-π values, and energy conservation violations. Fixes comment text only — never edits data records. Skip ruler and column validation (comment-only workflow).

ENSDF DP (Delayed Proton), B (Beta Minus), E (Electron Capture/Beta Plus), and A (Alpha) record 80-column format specifications and field definitions.

Use this skill when deducing multipolarities for gamma transitions and then Jπ for nuclear levels by combining constraints from feeding and deexciting gamma transitions using electromagnetic selection rules. Applies D/E2 rules to primary capture transitions, D/Q or D/E2 to deexciting gammas (if RUL applies), and takes AND intersection of all constraints. Handles multi-valued initial Jπ via union before intersection.

Use this skill when calculating weighted or unweighted averages for ENSDF nuclear data using Java_Average.py. Enforces exact transcription of the Suggested Adopted Result, minimum-uncertainty rule, and lifetime uncertainty limit 99. Suitable for adopting measured values from multiple publications.

Use this skill when standardizing multipolarity (M), mixing ratio (MR), angular correlation coefficients (A2, A4, A6), and polarization (POL) in ENSDF G-records. Extracts data from messy raw comment text, populates G-record fields, and adds standardized cG comment lines with proper subscript notation and {I} uncertainties. Validates 80-column compliance after every edit.

Organizes general comment sections in Adopted Dataset ENSDF files in the canonical sequence: Isotope Discovery, Production, Decay Measurements, Radius, Mass, Theoretical Calculations. Use when adding or reorganizing general comments at the beginning of an Adopted dataset file.

Standardizes L-transfer phrases in ENSDF cL J$ comments. Use when deducing Jπ from L-transfers in XREF-identified reaction datasets using angular momentum coupling rules. Comment-only workflow; no ruler or column validation required.

Use this skill when calculating Q-alpha values from measured alpha energies and updating the Q field (cols 65-74) and DQ field (cols 75-76) in ENSDF P records. Uses exact kinematic formula Q = E_alpha * A/(A-4). Applies to single files or chains of alpha-decay datasets.

Use this skill when expanding flags in column 77 or flags in FLAG= continuation records in ENSDF files into individual cG or cL comment lines. Maps each flag character to its defined description in the dataset header. Clears column 77 flag characters from data records or deletes original FLAG= continuation lines after expansion.

Use this skill when looking up and verifying DOIs for the most recent Nuclear Data Sheets (NDS) evaluation articles by mass number A. Uses the NNDC EvaluationIndexServlet as ground truth, Crossref REST API for DOI discovery, and the Elsevier linking hub for confirmation. Inserts verified DOI lines in ascending A order into Data Check Report .txt files.

Use this skill when adding nuclear reaction equation comments to transfer reaction dataset headers in ENSDF files. Covers stripping, pickup, charge exchange, and fragmentation reactions. Determines net nucleon transfer and formats with added nucleons LEFT of arrow and removed nucleons RIGHT of arrow. Includes reference table for 40+ common reactions and target ground state spin-parity table.

Use this skill when scaling resonance strengths (ωγ) in ENSDF cL comment lines by a given factor and applying specified relative uncertainties. Handles dual-threshold uncertainty (e.g., 30% above cutoff, 50% below). Uses PDG sig-fig convention for ENSDF {In} formatting. Comment-only workflow — skip ruler and column validation.

Use this skill when checking consistency of nuclear level energies across multiple occurrences in a gamma-ray transition CSV, Markdown, or pipe table. Verifies that energy, uncertainty, and J-π are identical wherever a level appears as both an initial (Ei) and final (Ef) state. Mandates explicit column mapping including blank cells and bidirectional forward/backward verification.

Use this skill when reviewing or writing gamma-ray source comments for an ENSDF dataset. Establishes a single default-source general cG E,RI$ comment and adds individual exception comments only where needed. Covers weighted averages, non-default dataset sources, and enforces ENSDF comment ordering (E$ → RI$ → M$ → MR$).

Checks target data in ENS files against source data for exact consistency after data entry. Use when validating target data in ENS files against source data from CSV, Markdown, MRG, ENS, or ADP files, including values, uncertainties, signs, limits, decimal digits, units, provenance comments, strings, XREFs, and completeness.

Reconciles source data into a target ENS file by replacing, keeping, adding, merging, or averaging data records and fields. Use when synchronizing ENS files with source CSV, Markdown, MRG, ADP, or raw ENS data, or when updating energies, intensities, and comments while preserving selected target values.

Update L-record half-life value T and uncertainty DT from adopted cL T$ lifetime values by converting |t to T{-1/2} with ln(2), applying ENSDF uncertainty notation, unit scaling, and validation.

Standardize cL T$ lifetime comments in ENSDF files. Use (NSR, METHOD) format for individual datasets and "in REACTION from NSR with METHOD" for adopted datasets. Handles single values, weighted averages, limits, and mixed patterns. Applies Oxford comma, chronological ordering, {IUNC} uncertainty (limit 99 for lifetime full precision).

Use this skill as a reference guide for ENSDF multipolarity (M) and mixing ratio (MR) field notation. Covers E1/M1/E2/M2 designations, shorthand D/Q/O, mixed M1+E2 formatting, symmetric and asymmetric DMR uncertainties, and exact column positions 33-41 (M) and 42-49 (MR). Suitable for writing or reviewing G-record multipolarity fields.

Use this skill when reviewing RI=100 gamma transitions in ENSDF adopted files. Replaces unnecessary RI=100 averaging with source adoption from the most precise dataset, updates G-record RI/DRI when needed, rewrites cG RI$ comments, and validates the result.

Creates and revises SKILL.md files for VS Code GitHub Copilot and Claude agent skills. Use when authoring a new SKILL.md, improving an existing one, diagnosing why a skill is not triggering, or packaging domain knowledge into a reusable workflow skill. Not for creating .instructions.md, .prompt.md, .agent.md, hooks, or other customization file types.

Use this skill as a reference guide for ENSDF spin-parity (Jπ) notation rules. Covers L-transfer field positioning at column 56, J-π assignment confidence levels using parentheses, single/multiple/range spin assignments, and critical parentheses placement rules. Suitable for writing J-π values in L-records or J$ comment lines.

Performs bulk data entry from CSV or Markdown tables into ENSDF dataset L-records and G-records. Enforces bidirectional column mapping and mandatory 15% spot-check validation. Use when transferring ≥10 numeric data points from CSV or Markdown tables into an ENSDF dataset file.

Compare quantities (J-π, energies, half-lives, branching ratios) between Adopted ENSDF files and their source individual reaction datasets. Uses XREF notation to identify which datasets observe each level. Performs systematic character-by-character verification and generates mismatch reports with error categorization. CHECK-ONLY mode — reports findings without editing files.

Update cross-reference (XREF) labels in ENSDF adopted files when experimental datasets are added or removed. Handles systematic label shifting, new label insertion, deleted label removal, and preserves parenthetical notations such as (energy), (*), and (?). Covers both add-dataset and remove-dataset scenarios with 5%+ spot-check validation. Skip column_calibrate and line ruler; pad XREF lines to 80 characters only.