Borrowing it
Nothing to install: this file belongs to rjpruitt16/aquifer. 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/rjpruitt16/aquifer/main/AGENTS.mdgit clone --depth 1 https://github.com/rjpruitt16/aquiferWrote 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/rjpruitt16/aquifer/agents-md)<a href="https://agentmods.dev/instructions/rjpruitt16/aquifer/agents-md"><img src="https://agentmods.dev/badge/instructions/rjpruitt16/aquifer/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/rjpruitt16/aquifer/agents-md"><img src="https://agentmods.dev/badge/instructions/rjpruitt16/aquifer/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 | $0.01316 | $0.01316 |
| Opus 5.5 | $0.00526 | $0.00526 |
| Sonnet 5.5 | $0.00263 | $0.00263 |
| Haiku 4.5 | $0.00132 | $0.00132 |
Grade A, and why
aquifer 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 today.
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 — 50 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AGENTS.md
Aquifer is a Go load balancer for agentic workloads: durable per-tenant queues, dynamic pacing driven by X-Aqueduct-* headers from the target API, POST /proxy direct-then-fallback, cluster routing, drain mode, Valkey-backed remote idempotency, and L8 signed (and optionally encrypted) webhooks.
Related repos
These repos are developed together and are usually cloned as siblings under one folder (SAAS/). Before you search the web or guess, check whether the sibling exists locally at the path below and read it.
| Repo | Local path | GitHub | Role |
|---|---|---|---|
| aquifer | ../aquifer |
https://github.com/rjpruitt16/aquifer | Go load balancer for agentic workloads; reference implementation |
| spillway | ../spillway |
https://github.com/rjpruitt16/spillway | Elixir/Phoenix sibling of Aquifer; kept feature-for-feature in sync |
| l8-protocol | ../l8-protocol |
https://github.com/rjpruitt16/l8-protocol | L8 spec (index.md, spec.json): handshake, signing, encryption, request schemas |
| aqueduct-runner | ../aqueduct-runner |
https://github.com/rjpruitt16/aqueduct-runner | Cross-repo contract tests (Dagger + Hurl) run against real Aquifer and Spillway containers |
| canalis-rs | ../canalis-rs |
https://github.com/rjpruitt16/canalis-rs | Rust control plane for Aquifer/Spillway fleets |
Shared contracts that must stay identical across Aquifer and Spillway: X-Aqueduct-* request/response headers, job JSON shape, idempotency hashing (sha256(user_id + ":" + key), or sha256("shared\0" + key) for idempotency_scope: "shared"), drain ledger events, POST /proxy direct-then-fallback behavior, and L8. A change to any of these in one repo needs the matching change in the other, an update to l8-protocol if it touches L8, and ideally a contract test in aqueduct-runner.
Commands
- Unit tests:
go test ./...(add-racefor concurrency changes). The macOSld: warning: ... malformed LC_DYSYMTABline is harmless. - Python L8 integration (needs
pip install cryptography requests):make integration-test, or runtests/l8_receiver.py+tests/test_l8.pyby hand. - Cross-repo contracts: from
../aqueduct-runner, e.g.make contract-test-aquifer,make contract-test-all.
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.
- today Changed · +3 lines · +173 tokens per session 7df9babf2e92
- 6d ago Changed · +2 tokens per session c9acb0b9ac08
- 10d ago Changed · +7 lines · +240 tokens per session 5f7da9293dc7
- 16d ago First seen · 40 lines · 901 tokens per session scan A 157839ed942f
aquifer AGENTS.md is an instructions file published in the GitHub repository rjpruitt16/aquifer (15 stars, last pushed today), licensed Apache-2.0. It adds 1,316 tokens to every session, about $0.0053 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 2026-10-06.
Other instructions, from other repositories
vscode buildNext.instructions.md
Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).
next.js AGENTS.md
AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
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Copilot instructions for microsoft/vscode, covering vs code copilot instructions, project overview, root folders, core architecture (src/ folder) and built-in extensions (extensions/ folder).
deno copilot-instructions.md
Copilot instructions for denoland/deno, covering deno development guide for github copilot, network access, high level overview, key directories and key files to understand first.