copilot-setting: Instructions file for GitHub Copilot

.github/instructions/jsp.instructions.md

copilot-setting jsp.instructions.md is an instructions file for GitHub Copilot from zexion7873/copilot-setting. It costs 471 tokens per session, scanned A, original, MIT.

A set of rules for JavaServer Pages (JSP), a technology that generates web pages on the server. It covers safe display of user data, JSP Standard Tag Library usage, and preparing data before rendering a page.

In plain words
What is it for?
Use it when writing or reviewing JSP pages, especially dynamic HTML, links, JavaScript data, conditional sections, lists, and date or number formatting.
Why use it?
It helps prevent cross-site scripting, a security problem where harmful code is inserted into a web page. It also avoids outdated scriptlets and database-loading errors in views.

Instructions file for GitHub Copilot

Written for GitHub Copilot: a Copilot instructions file.

This is zexion7873/copilot-setting's own configuration. It tells GitHub Copilot how to work on copilot-setting 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 copilot-setting configures →

Reuse

Borrowing it

Nothing to install: this file belongs to zexion7873/copilot-setting. 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/zexion7873/copilot-setting/main/.github/instructions/jsp.instructions.md
Clone the repo
git clone --depth 1 https://github.com/zexion7873/copilot-setting

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 copilot-setting jsp.instructions.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/zexion7873/copilot-setting/jsp/github.svg)](https://agentmods.dev/instructions/zexion7873/copilot-setting/jsp)
Your own site
<a href="https://agentmods.dev/instructions/zexion7873/copilot-setting/jsp"><img src="https://agentmods.dev/badge/instructions/zexion7873/copilot-setting/jsp/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.

agentmods 80×15 button for copilot-setting jsp.instructions.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/zexion7873/copilot-setting/jsp"><img src="https://agentmods.dev/badge/instructions/zexion7873/copilot-setting/jsp.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 471 This file is loaded in full into every session.
When invoked 471 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 $0.00471 $0.00471
Opus 5.5 $0.00188 $0.00188
Sonnet 5.5 $0.00094 $0.00094
Haiku 4.5 $0.00047 $0.00047

Measured 1mo ago against content hash cedf0a3de3c5, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

copilot-setting jsp.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 1mo 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/jsp.instructions.md · 29 lines

What it actually says

JSP Conventions

Output Encoding

  • Every dynamic value: <c:out value="${...}"/> or fn:escapeXml() — no raw ${...} in HTML
  • Attribute context requires a double-quoted attribute — escaping cannot stop unquoted-attribute breakout
  • Never put ${...} in an inline event handler (onclick) or javascript: URL — escaping cannot make these safe; pass via an HTML-escaped data-* attribute and read it from JS
  • JS context: JSON-encode server-side with < escaped as \u003c, or pass via a data-* attribute
  • URL context: <c:url> with <c:param>

JSTL Only

  • No scriptlets (<% ... %>); no <%= ... %> — use <c:out>
  • Logic: <c:if>, <c:choose>, <c:forEach>; formatting: <fmt:formatDate>, <fmt:formatNumber>
  • <fmt:formatDate value="${...}"/> takes a java.util.Date only — JSTL 1.2 predates java.time, so a LocalDateTime reaching it fails at render. Convert at the service boundary, never in the view (instructions/java.instructions.md)

Includes

  • <jsp:include> for dynamic; <%@ include %> for static; never include user-supplied paths

Data Preparation

  • JSP must NOT trigger lazy loading — prepare all data in the controller/service before forwarding (instructions/spring-hibernate.instructions.md); a lazy-collection hit in a JSP means the service missed an eager fetch — fix the service, not the JSP
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. 1mo ago Changed · +1 lines · +83 tokens per session cedf0a3de3c5
  2. 1mo ago Changed · -10 lines · -168 tokens per session 7f60db84f0a0
  3. 2mo ago First seen · 38 lines · 556 tokens per session scan A 63fe08970ae9

Subscribe to this mod's changes

copilot-setting jsp.instructions.md is an instructions file published in the GitHub repository zexion7873/copilot-setting (1 stars, last pushed 1mo ago), licensed MIT. It adds 471 tokens to every session, about $0.0019 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 2026-08-31.

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