Borrowing it
Nothing to install: this file belongs to Marve10s/Better-Fullstack. 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/Marve10s/Better-Fullstack/main/AGENTS.mdgit clone --depth 1 https://github.com/Marve10s/Better-FullstackWrote 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/marve10s/better-fullstack/agents-md)<a href="https://agentmods.dev/instructions/marve10s/better-fullstack/agents-md"><img src="https://agentmods.dev/badge/instructions/marve10s/better-fullstack/agents-md/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/marve10s/better-fullstack/agents-md"><img src="https://agentmods.dev/badge/instructions/marve10s/better-fullstack/agents-md.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 | $0.00910 | $0.00910 |
| Opus 5.5 | $0.00364 | $0.00364 |
| Sonnet 5.5 | $0.00182 | $0.00182 |
| Haiku 4.5 | $0.00091 | $0.00091 |
Grade A, and why
Better-Fullstack AGENTS.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 8d 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.
How it starts
The opening of the file, as written. The whole thing — 46 lines — stays where its author put it; the contents beside it link to each section on GitHub.
This file provides the small set of project-wide instructions agents should read before working in Better-Fullstack. Keep detailed, area-specific guidance in docs/guidelines/ instead of growing this file with task notes.
For documentation work or when the right source of project knowledge is unclear, read
docs/README.md. It defines document authority and routing.
Guidelines
Do not bulk-read docs/guidelines/. Open a guideline when the request matches its topic. One exception is mandatory, not optional: adding any new library, tool, or category to any ecosystem requires reading docs/guidelines/adding-new-tool-options/ first.
See docs/guidelines/ for deeper reference on these topics:
README.md- folder purpose, usage rules, and quick index for all guideline filesarchitecture-and-ownership.md- monorepo package ownership and where changes belongstack-graph-and-config-authority.md- graph authority, Role Binding ownership, flat projections, and graph-safe mutationslifecycle-commands-and-mcp.md- create/add/update/check semantics, plan/apply safety, baselines, and CLI/MCP paritygenerated-artifacts-and-sync.md- generated-file producers, authoritative inputs, and safe regeneration in dirty worktreestelemetry-privacy-and-internal-tools.md- telemetry allowlists, ingest privacy, aggregate access, and fail-closed internal toolspublic-docs-i18n-and-seo.md- public content authority, translation fallback, schema-derived references, and agent/SEO surfacescapability-evidence-levels.md- shared public proof levels and fail-closed claim rulesstack-options-and-compatibility.md- schema source of truth, canonical option metadata, aliases, and compatibility rulesgenerator-change-playbook.md- generated-output constraints, template changes, and verificationweb-builder-and-url-state.md- stack builder state, URL parsing, lazy-route constraints, and preview wiringtesting-release-and-upstream.md- targeted verification commands, release guard expectations, and upstream backport workflowpreview-publishing-security.md- PR preview threat model, trusted artifact boundary, environment setup, and workflow guardadding-new-tool-options/- read this subfolder when adding any new library, tool, or category to any ecosystem. Use its README for the source checklist, graph/CLI/MCP wiring, routing constraints, and verification
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.
- 8d ago Changed · +1 lines · +13 tokens per session 534f3ed107ea
- 17d ago Changed · -1 lines · -19 tokens per session 4292e981dc6b
- 23d ago Changed · +2 lines · +51 tokens per session 70462ced2136
- 1mo ago Changed · -3 lines · -163 tokens per session 2c250720db0f
- 1mo ago Changed · -11 tokens per session 8ea1e4e076bc
- 1mo ago Changed · -1 lines · -23 tokens per session c68cc1d8916b
- 2mo ago First seen · 48 lines · 1,062 tokens per session scan A aa0e436e602d
Better-Fullstack AGENTS.md is an instructions file published in the GitHub repository Marve10s/Better-Fullstack (818 stars, last pushed yesterday), licensed MIT. It adds 910 tokens to every session, about $0.0036 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.
Better-Fullstack AGENTS.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| Better-Fullstack AGENTS.mdMarve10s/Better-Fullstack | Instructions file | 818 | yesterday | MIT | A | 910 | Codex, OpenCode |
| vscode buildNext.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 9,719 | GitHub Copilot |
| next.js AGENTS.mdvercel/next.js | Instructions file | 143k | today | MIT | A | 7,461 | Codex, OpenCode |
| langchain AGENTS.mdlangchain-ai/langchain | Instructions file | 149k | yesterday | MIT | A | 4,680 | Codex, OpenCode |
| vscode oss-third-party-notices.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 5,516 | GitHub Copilot |
| vscode copilot-instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 3,093 | GitHub Copilot |
| deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness | Instructions file | 274k | 2d ago | MIT | A | 4,313 | Codex, OpenCode |