A collection of reusable prompts for AI coding agents working in one repository. Each prompt covers a focused task and points the agent to the project’s architecture and operating rules.

Use the prompts for adding system extensions, changing update paths, synchronising documentation, or investigating a failed CI workflow.

It avoids rewriting task instructions and helps the agent follow repository-specific contracts when making changes.

How frostyard/snosi configures GitHub Copilot

Reuse

Borrowing it

Nothing to install: this file belongs to frostyard/snosi. 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/frostyard/snosi/main/.github/prompts/README.md

Clone the repo

git clone --depth 1 https://github.com/frostyard/snosi

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.

README.md

[![agentmods](https://agentmods.dev/badge/commands/frostyard/snosi/readme/github.svg)](https://agentmods.dev/commands/frostyard/snosi/readme)

Your own site

<a href="https://agentmods.dev/commands/frostyard/snosi/readme"><img src="https://agentmods.dev/badge/commands/frostyard/snosi/readme/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.

Your own site · 80×15

<a href="https://agentmods.dev/commands/frostyard/snosi/readme"><img src="https://agentmods.dev/badge/commands/frostyard/snosi/readme.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 280 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 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.

Model	Per session	Once invoked
Fable 5.1	$0.00000	$0.00280
Opus 5.5	$0.00000	$0.00112
Sonnet 5.5	$0.00000	$0.00056
Haiku 4.5	$0.00000	$0.00028

Measured 1mo ago against content hash 29ca159f080a, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

README 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/prompts/README.md · 24 lines

What it actually says

Prompts catalog

Reusable prompts for AI coding agents working in this repository.

Each file is a task-scoped prompt: paste it (or reference it) at the start of a session, then replace the <...> placeholders with the specifics of your task. Every prompt assumes the agent has first read CLAUDE.md and docs/design/overview.md, which hold the architecture, contracts, and operational constraints that most mistakes in this repository come from ignoring.

Prompt	Use it for
`add-sysext.md`	Adding or changing a system extension under `mkosi.images/`
`update-docs.md`	Bringing `CLAUDE.md`, `README.md`, and `docs/` back in sync with code
`triage-ci-failure.md`	Investigating a failed workflow run

Conventions

Prompts describe how to work here, not project status; keep status in CLAUDE.md and docs/.
Keep each prompt self-contained and under roughly one screen.
When a live contract changes (for example docs/bootc-secure-operations.md), update the prompt that points at it in the same pull request.

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.

1mo ago Changed · -1 lines 29ca159f080a
2mo ago First seen · 25 lines · 0 tokens per session scan A 112d7a870b90

Subscribe to this mod's changes

README is a command published in the GitHub repository frostyard/snosi (32 stars, last pushed today), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 280 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 2026-09-06.

Building agents CI and CD DevOps and cloud

README next to 6 commands from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
READMEfrostyard/snosi	Command	32	today	MIT	A	0	GitHub Copilot
dart-fix-cidartsim/dart	Command	1.2k	yesterday	BSD-2-Clause	A	6	Claude Code
domainsgotempsh/temps	Command	903	yesterday	Apache-2.0	A	0	Claude Code
accessgotempsh/temps	Command	903	yesterday	Apache-2.0	A	0	Claude Code
check-release-healthopenshift-eng/ai-helpers	Command	122	yesterday	Apache-2.0	A	22	Claude Code
merge-conflict-analysisrjmurillo/ai-agents	Command	49	yesterday	MIT	A	0	GitHub Copilot
release-managerruvnet/agentic-flow	Command	838	today	none	A	0	Claude Code

snosi: Command for GitHub Copilot