openbridge-webcomponents: Instructions file for GitHub Copilot

.github/instructions/building-blocks.instructions.md

openbridge-webcomponents building-blocks.instructions.md is an instructions file for GitHub Copilot from Ocean-Industries-Concept-Lab/openbridge-webcomponents. It costs 2,554 tokens per session, scanned A, original, Apache-2.0.

Coding instructions for SVG-based interface building blocks and shared SVG drawing helpers. They cover components such as bars, scales, and line charts.

In plain words
What is it for?
Use them when changing or adding components in the building-blocks and svghelpers folders, especially layouts that can be horizontal, vertical, left-sided, or right-sided.
Why use it?
They reduce regressions caused by editing only part of a file or handling one orientation or side while missing its mirrored version.

Instructions file for GitHub Copilot

Written for GitHub Copilot: a Copilot instructions file.

This is Ocean-Industries-Concept-Lab/openbridge-webcomponents's own configuration. It tells GitHub Copilot how to work on openbridge-webcomponents 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 openbridge-webcomponents configures →

Reuse

Borrowing it

Nothing to install: this file belongs to Ocean-Industries-Concept-Lab/openbridge-webcomponents. 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/Ocean-Industries-Concept-Lab/openbridge-webcomponents/develop/.github/instructions/building-blocks.instructions.md
Clone the repo
git clone --depth 1 https://github.com/Ocean-Industries-Concept-Lab/openbridge-webcomponents

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.

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README.md
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<a href="https://agentmods.dev/instructions/ocean-industries-concept-lab/openbridge-webcomponents/building-blocks"><img src="https://agentmods.dev/badge/instructions/ocean-industries-concept-lab/openbridge-webcomponents/building-blocks.svg" alt="Measured on agentmods" height="20"></a>
Per session 2,554 This file is loaded in full into every session.
When invoked 2,554 The same file — it is already loaded in full.
Security scan A 0 findings. Scan, not verified.
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 $0.02554 $0.02554
Opus 5 $0.01277 $0.01277
Sonnet 5 $0.00511 $0.00511
Haiku 4.5 $0.00255 $0.00255

Measured 6d ago against content hash 07bde8ff4660, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

openbridge-webcomponents building-blocks.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 6d 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/building-blocks.instructions.md · 200 lines

How it starts

The opening of the file, as written. The whole thing — 200 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Building Blocks & SVG Helpers

These instructions apply to SVG-based building block components (instrument-linear, bar-vertical, etc.) and their shared SVG helper utilities.

Agent Safety Rules (Context + Mirroring)

When implementing changes in this area, avoid narrow/local fixes that can introduce regressions:

  1. Always load the full file into context before editing

    • Read the entire file you are about to change (not just snippets) so you understand how helpers, state, rendering, and events fit together.
    • This is required to avoid “local fixes” that miss related logic and accidentally introduce new bugs.
  2. Always think in mirrored / generalized layouts (sides + orientations)

    • For components like:
      • packages/openbridge-webcomponents/src/building-blocks/external-scale/external-scale.ts
      • packages/openbridge-webcomponents/src/building-blocks/bar-horizontal/bar-horizontal.ts
      • packages/openbridge-webcomponents/src/building-blocks/bar-vertical/bar-vertical.ts
      • packages/openbridge-webcomponents/src/building-blocks/chart-line/chart-line-base.ts
      • packages/openbridge-webcomponents/src/bars-graphs/line-graph/line-graph.ts
      • packages/openbridge-webcomponents/src/bars-graphs/area-graph/area-graph.ts
    • If a task changes behavior for one side (e.g. right), validate the equivalent behavior for the opposite side (left) and for the orthogonal orientation (top/bottom) where applicable.
    • Prefer implementing via shared helpers/config so “all sides / all orientations” stay consistent.

packages/openbridge-webcomponents/src/building-blocks/**

When working with building block components in this directory:

  1. SVG-Based Architecture:
    • Building blocks are pure SVG components rendered using Lit's svg template tag
    • Components typically render into a <svg> element with a viewBox for coordinate system control
    • Use shared helpers from svghelpers/ for coordinate transformations and rendering utilities
    • Consider checking existing building blocks (e.g., instrument-linear) for similar patterns before implementing new features

Read the full file on GitHub · 200 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. 6d ago First seen · 200 lines · 2,554 tokens per session scan A 07bde8ff4660

Subscribe to this mod's changes

openbridge-webcomponents building-blocks.instructions.md is an instructions file published in the GitHub repository Ocean-Industries-Concept-Lab/openbridge-webcomponents (92 stars, last pushed yesterday), licensed Apache-2.0. It adds 2,554 tokens to every session, about $0.0128 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.

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