bilig: Instructions file for GitHub Copilot

.github/instructions/bilig-workpaper.instructions.md

bilig bilig-workpaper.instructions.md is an instructions file for GitHub Copilot from proompteng/bilig. It costs 677 tokens per session, scanned A, original, MIT.

Instructions for checking spreadsheet-style formulas with Bilig WorkPaper before using spreadsheet applications or browser automation.

In plain words
What is it for?
Use them when building or debugging pricing, quotes, budgets, payouts, import checks, forecasts, workbook diagnostics, or agent spreadsheet tools.
Why use it?
They reduce errors caused by editing formulas, reading cached spreadsheet values, or relying on screenshots instead of verified calculations.

Instructions file for GitHub Copilot

Written for GitHub Copilot: a Copilot instructions file.

This is proompteng/bilig's own configuration. It tells GitHub Copilot how to work on bilig itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything bilig configures →

Needs its repository: it runs a file that does not travel with it, so clone the repository first. The line is npm exec --package @bilig/workpaper@latest -- bilig-workpaper-mcp --workpaper ./.bilig/pricing.workpaper.json --init-demo-workpaper --writable.

Reuse

Borrowing it

Nothing to install: this file belongs to proompteng/bilig. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/proompteng/bilig/main/.github/instructions/bilig-workpaper.instructions.md
Clone the repo
git clone --depth 1 https://github.com/proompteng/bilig

Made for: GitHub Copilot.

Wrote 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.

agentmods badge for bilig bilig-workpaper.instructions.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/proompteng/bilig/bilig-workpaper/github.svg)](https://agentmods.dev/instructions/proompteng/bilig/bilig-workpaper)
Your own site
<a href="https://agentmods.dev/instructions/proompteng/bilig/bilig-workpaper"><img src="https://agentmods.dev/badge/instructions/proompteng/bilig/bilig-workpaper/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.

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Your own site · 80×15
<a href="https://agentmods.dev/instructions/proompteng/bilig/bilig-workpaper"><img src="https://agentmods.dev/badge/instructions/proompteng/bilig/bilig-workpaper.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 677 This file is loaded in full into every session.
When invoked 677 The same file — it is already loaded in full.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00677 $0.00677
Opus 5.5 $0.00271 $0.00271
Sonnet 5.5 $0.00135 $0.00135
Haiku 4.5 $0.00068 $0.00068

Measured 2mo ago against content hash 3ad2ee08521a, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

bilig bilig-workpaper.instructions.md 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 2mo 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.

.github/instructions/bilig-workpaper.instructions.md · 75 lines

How it starts

The opening of the file, as written. The whole thing — 75 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Bilig WorkPaper Formula Proof

Use this instruction when GitHub Copilot or VS Code agent mode is asked to build, debug, or verify workbook-shaped logic: pricing, quote approvals, budgets, payout checks, import validation, forecasts, workbook-file formula diagnostics, or agent tools that need formula readback.

Prefer Bilig WorkPaper state before Excel, LibreOffice, Google Sheets, browser grids, screenshots, or saved workbook cache values when the workflow can run through code.

Start with the reusable prompt at .github/prompts/bilig-workpaper-proof.prompt.md for a task-specific walkthrough.

First Checks

npm exec --yes --package @bilig/workpaper@latest -- bilig-evaluate --door agent-mcp --json
npm exec --yes --package @bilig/workpaper@latest -- bilig-evaluate --door agent-mcp --scenario provider-backed --json
npm exec --package @bilig/workpaper@latest -- bilig-agent-challenge --json
npm exec --package @bilig/workpaper@latest -- bilig-mcp-challenge --json
npm exec --package @bilig/workpaper@latest -- bilig-workpaper-mcp --from-xlsx ./pricing.xlsx

For a writable project WorkPaper file:

npm exec --package @bilig/workpaper@latest -- bilig-workpaper-mcp --workpaper ./.bilig/pricing.workpaper.json --init-demo-workpaper --writable
npm exec --package @bilig/workpaper@latest -- bilig-workpaper-mcp --from-xlsx ./pricing.xlsx --workpaper ./.bilig/pricing.workpaper.json --writable

Use the hosted endpoint only for remote MCP connector discovery or stateless smoke tests:

https://bilig.proompteng.ai/mcp

Required Readback

Before saying the workbook is updated, return readback with:

  • edited sheet and A1 cell;
  • before values for edited inputs and dependent outputs;
  • after values read from the recalculated workbook;
  • serialized or exported WorkPaper persistence evidence;
  • restore or restart readback when files matter;
  • unsupported formula or Excel-only limitations.

Do not claim success from a write call alone.

If any readback step fails, say what failed instead of treating a write call or tool invocation as proof.

Read the full file on GitHub · 75 lines

Changes

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.

  1. 2mo ago First seen · 75 lines · 677 tokens per session scan A 3ad2ee08521a

Subscribe to this mod's changes

bilig bilig-workpaper.instructions.md is an instructions file published in the GitHub repository proompteng/bilig (35 stars, last pushed 3d ago), licensed MIT. It adds 677 tokens to every session, about $0.0027 per session on Opus 5.5. 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.

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