Borrowing it
Nothing to install: this file belongs to tarlepp/symfony-flex-backend. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/tarlepp/symfony-flex-backend/master/.github/copilot-instructions.mdgit clone --depth 1 https://github.com/tarlepp/symfony-flex-backendWrote 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.
[](https://agentmods.dev/instructions/tarlepp/symfony-flex-backend/copilot-instructions)<a href="https://agentmods.dev/instructions/tarlepp/symfony-flex-backend/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/tarlepp/symfony-flex-backend/copilot-instructions/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.
<a href="https://agentmods.dev/instructions/tarlepp/symfony-flex-backend/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/tarlepp/symfony-flex-backend/copilot-instructions.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00365 | $0.00365 |
| Opus 5.5 | $0.00146 | $0.00146 |
| Sonnet 5.5 | $0.00073 | $0.00073 |
| Haiku 4.5 | $0.00036 | $0.00036 |
Grade A, and why
symfony-flex-backend copilot-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 2d 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.
What it actually says
What is this?
Copilot entry point for repository guidance. The actionable repository-wide
instructions live in AGENTS.md; this file points to those rules
instead of duplicating them.
Table of Contents ᐞ
Start here ᐞ
Follow AGENTS.md for architecture, implementation, validation,
and handoff requirements. Follow a matching task-specific skill from the
skills index as a supplement to those instructions.
Task guidance ᐞ
The README AI guidance inventory is the
canonical reading order. See CLAUDE.md for project architecture
and workflow context, and doc/AI_RULES.md for AI-guidance
maintenance and CI enforcement.
References ᐞ
See doc/SECURITY.md for the security policy. For
pull-request reviews, use the
pull request template.
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.
- 2d ago Changed · -165 lines · -1,670 tokens per session 15aa6e67e0d9
- 8d ago Changed · +4 lines · +50 tokens per session 28ecab9af1b2
- 9d ago Changed · +5 lines · +58 tokens per session ab8ab4ad4ae5
- 1mo ago First seen · 203 lines · 1,927 tokens per session scan A 1f86fa450918
symfony-flex-backend copilot-instructions.md is an instructions file published in the GitHub repository tarlepp/symfony-flex-backend (288 stars, last pushed yesterday), licensed MIT. It adds 365 tokens to every session, about $0.0015 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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