Getting it into your agent
It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.
git clone --depth 1 https://github.com/proompteng/bilignpx agentmods add skills/proompteng/bilig/bilig-xlsx-formula-recalcWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/proompteng/bilig/bilig-xlsx-formula-recalc)<a href="https://agentmods.dev/skills/proompteng/bilig/bilig-xlsx-formula-recalc"><img src="https://agentmods.dev/badge/skills/proompteng/bilig/bilig-xlsx-formula-recalc/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/proompteng/bilig/bilig-xlsx-formula-recalc"><img src="https://agentmods.dev/badge/skills/proompteng/bilig/bilig-xlsx-formula-recalc.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00032 | $0.00976 |
| Opus 5 | $0.00016 | $0.00488 |
| Sonnet 5 | $0.00006 | $0.00195 |
| Haiku 4.5 | $0.00003 | $0.00098 |
Grade A, and why
bilig-xlsx-formula-recalc scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 11d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
Copies of this mod
1 near-identical copy found in the catalogue:
- xlsx-formula-recalc — 91% identical, 15 lines differ
How it starts
The opening of the file, as written. The whole thing — 116 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Bilig XLSX Formula Recalculation
Use @bilig/xlsx-formula-recalc when an agent or Node.js service has changed
XLSX inputs and must read recalculated formula outputs without opening Excel,
LibreOffice, or a browser. This package is the canonical scoped package.
First Check
npm exec --yes --package @bilig/xlsx-formula-recalc@latest -- bilig-evaluate --door workbook-compatibility --json
npm exec --yes --package @bilig/xlsx-formula-recalc@latest -- bilig-evaluate --door xlsx-cache --json
Use workbook-compatibility when you need a local preflight report for a real
workbook before a Node service or agent trusts it. The report lists unsupported
functions, external links, macro payloads, pivots, volatile functions, stale
caches, and concrete risk reasons. It does not certify Excel compatibility and
must not grow a compatibility score.
The cache evaluator should print schemaVersion: "bilig-evaluator.v1",
door: "xlsx-cache", verified: true, and evidence for a stale cached
formula corrected to a Summary!B2 value of 72000.
For SheetJS / xlsx stale-formula issues, use the SheetJS-named binary from the
same package:
npm exec --yes --package @bilig/xlsx-formula-recalc@latest -- sheetjs-recalc --demo --json
If you have a real workbook but do not yet know which formula cells to verify, inspect it without writing an output file:
npm exec --yes --package @bilig/xlsx-formula-recalc@latest -- xlsx-recalc workbook.xlsx --inspect --json
For CI or issue triage, use the cache-diagnosis alias:
npm exec --yes --package @bilig/xlsx-formula-recalc@latest -- xlsx-cache-doctor workbook.xlsx --json
For workbook risk review, use the compatibility report:
npm exec --yes --package @bilig/xlsx-formula-recalc@latest -- workbook-compatibility-report workbook.xlsx --json
The inspection output includes formulaCellCount, staleCachedFormulaCount,
suggestedReads, and warnings. Default inspection checks every formula. If a
workflow sets --inspect-limit, require uninspectedFormulaCellCount: 0 before
treating the report as complete coverage.
What ships with it
19 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
- AGENTS.md 3.3 KB
- bin/bilig-evaluate.js 61 B runs code
- bin/sheetjs-recalc.js 59 B runs code
- bin/workbook-compatibility-report.js 81 B runs code
- bin/xlsx-cache-doctor.js 64 B runs code
- bin/xlsx-recalc.js 51 B runs code
- LICENSE 1.0 KB
- package.json 2.6 KB
- README.md 13 KB
- src/cache-doctor-cli.ts 200 B runs code
- src/cli-api.ts 93 B runs code
- src/cli.ts 194 B runs code
- src/evaluator-bin.ts 139 B runs code
- src/evaluator.ts 46 B runs code
- src/index.ts 77 B runs code
- src/sheetjs-cli.ts 197 B runs code
- src/workbook-compatibility-report-cli.ts 200 B runs code
- src/workbook-compatibility-report.ts 137 B runs code
- tsconfig.json 265 B
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 11d ago First seen · 116 lines · 32 tokens per session scan A e51affb63f70
bilig-xlsx-formula-recalc is a skill published in the GitHub repository proompteng/bilig (36 stars, last pushed 3d ago), licensed MIT. It adds 32 tokens to every session and 976 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other skills, from other repositories
TypeScript 인터페이스 순서 기반 xlsx 엑셀 다운로드 구현
A TypeScript function that turns an array of data into an XLSX spreadsheet, following the property order defined by a TypeScript interface. XLSX is a common Excel file format.
excel-cli
Excel CLI automation skill for Windows workbooks. Use when a coding agent needs token-efficient, scriptable, or unattended Excel automation via excelcli commands. Best for CI/CD, scheduled jobs, batch processing, PowerShell workflows, and bulk workbook edits. Supports Power Query, DAX, PivotTables, Tables, Ranges…
excel-mcp
Excel MCP Server skill for Windows workbook automation. Use when an assistant needs rich MCP tools to create, inspect, modify, format, or analyze Excel files. Supports Power Query (M), Data Model/DAX, PivotTables, Tables, Ranges, Charts, Slicers, formatting, screenshots, VBA macros, connections, and calculation mode.…
calc-spreadsheets
Create, open or edit Calc spreadsheets: ODS default; XLSX for Excel compatibility.
xlsx
Read, create, and convert Microsoft Excel (.xlsx) and CSV spreadsheets — extract sheets and tables to JSON, build workbooks from JSON/CSV, and export to PDF.
xlsx
Working with Excel files programmatically.