Borrowing it
Nothing to install: this file belongs to ShaftHQ/SHAFT_ENGINE. 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/ShaftHQ/SHAFT_ENGINE/main/.github/instructions/framework-source.instructions.mdgit clone --depth 1 https://github.com/ShaftHQ/SHAFT_ENGINEWrote 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/shafthq/shaft_engine/framework-source)<a href="https://agentmods.dev/instructions/shafthq/shaft_engine/framework-source"><img src="https://agentmods.dev/badge/instructions/shafthq/shaft_engine/framework-source/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/shafthq/shaft_engine/framework-source"><img src="https://agentmods.dev/badge/instructions/shafthq/shaft_engine/framework-source.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 | $0.00036 | $0.00036 |
| Opus 5.5 | $0.00014 | $0.00014 |
| Sonnet 5.5 | $0.00007 | $0.00007 |
| Haiku 4.5 | $0.00004 | $0.00004 |
Grade A, and why
SHAFT_ENGINE framework-source.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
Follow the canonical framework-source rules.
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 tokens per session 81696fa7cca5
- 2mo ago First seen · 6 lines · 37 tokens per session scan A 3a4be62675e0
SHAFT_ENGINE framework-source.instructions.md is an instructions file published in the GitHub repository ShaftHQ/SHAFT_ENGINE (418 stars, last pushed yesterday), licensed MIT. It adds 36 tokens to every session, about $0.0001 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.
SHAFT_ENGINE framework-source.instructions.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| SHAFT_ENGINE framework-source.instructions.mdShaftHQ/SHAFT_ENGINE | Instructions file | 418 | yesterday | MIT | A | 36 | GitHub Copilot |
| qmax-mcp copilot-instructions.mdQuality-Max/qmax-mcp | Instructions file | 4 | 4d ago | MIT | A | 451 | GitHub Copilot |
| vibetags com-example-config-AsyncTestConfig.instructions.mdPIsberg/vibetags | Instructions file | 25 | today | MIT | A | 82 | GitHub Copilot |
| vscode buildNext.instructions.mdmicrosoft/vscode | Instructions file | 195k | today | 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 | today | MIT | A | 4,680 | Codex, OpenCode |
| vscode oss-third-party-notices.instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 5,516 | GitHub Copilot |