copilot-instructions-template: Command for GitHub Copilot

.github/prompts/phase-transition_3to4.prompt.md

phase-transition_3to4 is a command for GitHub Copilot from zarfld/copilot-instructions-template. It costs 0 tokens per session (603 once invoked), scanned A, original, no licence file.

A phase-transition guide for moving from architecture design to detailed design. Architecture design defines the system's major structure, while detailed design specifies the parts closely enough to implement them; the command references IEEE 42010-2011 and IEEE 1016-2009.

In plain words
What is it for?
It is for checking or guiding the transition from Phase 03, Architecture Design, to Phase 04, Detailed Design.
Why use it?
It helps make the handoff between two design stages explicit and tied to named engineering standards.

Command for GitHub Copilot

Written for GitHub Copilot: a Copilot chat mode or prompt.

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

Reuse

Borrowing it

Nothing to install: this file belongs to zarfld/copilot-instructions-template. 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/zarfld/copilot-instructions-template/master/.github/prompts/phase-transition_3to4.prompt.md
Clone the repo
git clone --depth 1 https://github.com/zarfld/copilot-instructions-template

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 phase-transition_3to4

README.md
[![agentmods](https://agentmods.dev/badge/commands/zarfld/copilot-instructions-template/phase-transition_3to4/github.svg)](https://agentmods.dev/commands/zarfld/copilot-instructions-template/phase-transition_3to4)
Your own site
<a href="https://agentmods.dev/commands/zarfld/copilot-instructions-template/phase-transition_3to4"><img src="https://agentmods.dev/badge/commands/zarfld/copilot-instructions-template/phase-transition_3to4/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 phase-transition_3to4

Your own site · 80×15
<a href="https://agentmods.dev/commands/zarfld/copilot-instructions-template/phase-transition_3to4"><img src="https://agentmods.dev/badge/commands/zarfld/copilot-instructions-template/phase-transition_3to4.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 603 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown 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 $0.00000 $0.00603
Opus 5.5 $0.00000 $0.00241
Sonnet 5.5 $0.00000 $0.00121
Haiku 4.5 $0.00000 $0.00060

Measured 14d ago against content hash 3c7ddb159e27, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

phase-transition_3to4 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 14d 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/prompts/phase-transition_3to4.prompt.md · 51 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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. 14d ago First seen · 51 lines · 0 tokens per session scan A 3c7ddb159e27

Subscribe to this mod's changes

phase-transition_3to4 is a command published in the GitHub repository zarfld/copilot-instructions-template (1 stars, last pushed 15d ago), with no licence file. It costs nothing until one of its globs matches a file; then it loads 603 tokens. 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 2026-10-15.