Borrowing it
Nothing to install: this file belongs to RichardGeorgeDavis/Codex-Workspace. 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/RichardGeorgeDavis/Codex-Workspace/main/.github/copilot-instructions.mdgit clone --depth 1 https://github.com/RichardGeorgeDavis/Codex-WorkspaceWrote 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/richardgeorgedavis/codex-workspace/copilot-instructions)<a href="https://agentmods.dev/instructions/richardgeorgedavis/codex-workspace/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/richardgeorgedavis/codex-workspace/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/richardgeorgedavis/codex-workspace/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/richardgeorgedavis/codex-workspace/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 | $0.00235 | $0.00235 |
| Opus 5.5 | $0.00094 | $0.00094 |
| Sonnet 5.5 | $0.00047 | $0.00047 |
| Haiku 4.5 | $0.00023 | $0.00023 |
Grade A, and why
Codex-Workspace 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 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.
What it actually says
GitHub Copilot Instructions
Root AGENTS.md is the canonical public agent contract for this workspace.
Follow these same defaults when working through Copilot, even when this file is
read on its own by a converter or third-party tool.
For this repository:
- keep standalone repos independently runnable
- share caches under
cache/, not dependency installs across repos - use
.workspace/project.jsonwhen runtime behavior or preview mode should be explicit - keep machine-specific notes, MCP config, secrets, and personal prompt files in ignored local locations such as
tools/local/ - prefer direct local runtime for frontend and dev-server projects unless a repo manifest says otherwise
- treat WordPress repos already managed by Local or a mapped host as
externalby default - when editing
repos/workspace-hub, classify repos conservatively and do not assume one package manager or one runtime model - avoid introducing mandatory orchestration layers, shared dependency trees, or hidden automation
- prefer small, readable changes with clear failure states
- treat
.agents/skills/as the tracked TomeVault skill distribution mirror, not as the primary authoring source
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 First seen · 19 lines · 235 tokens per session scan A 300add7ee2ca
Codex-Workspace copilot-instructions.md is an instructions file published in the GitHub repository RichardGeorgeDavis/Codex-Workspace (3 stars, last pushed 1mo ago), licensed MIT. It adds 235 tokens to every session, about $0.0009 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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