Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add instructions/teranos/ground/claude-mdgit clone --depth 1 https://github.com/teranos/groundWrote 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/teranos/ground/claude-md)<a href="https://agentmods.dev/instructions/teranos/ground/claude-md"><img src="https://agentmods.dev/badge/instructions/teranos/ground/claude-md.svg" alt="Measured on agentmods" 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 | $0.00518 | $0.00518 |
| Opus 5 | $0.00259 | $0.00259 |
| Sonnet 5 | $0.00104 | $0.00104 |
| Haiku 4.5 | $0.00052 | $0.00052 |
Grade A, and why
ground CLAUDE.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 4d 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 — 49 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Read source/hooks.d for control types, scope struct, and trigger builders.
Read source/strop.d for value-shape validation on extracted flag values.
Read source/controls.d for CTFE wiring — how pbt becomes static immutable scope arrays.
Read source/control_handlers.d for check, delay, and deliver handler implementations.
Read source/deferred.d for deferred delivery — session-scoped and project-scoped messages delivered at Stop.
Read source/immediate.d for immediate delivery — attestation format for external writers (QNTX, etc).
Read source/watch.d for the asyncRewake watcher — how immediate messages reach running sessions.
Read source/exec.d for exec dispatch — fork+pipe+wrapper, stdout/stderr capture, timeout.
Read source/errors.d for the GroundError primitive and deliverError fallback chain (db → breadcrumb → stderr).
Read grove/controls/.pbt for the rituals — each carries its agent's system:, so nothing else has to describe them.
Read ug/.d for the status line — one line per row, every formatter taking inputs and a destination buffer.
Read README.md for project overview.
Read COUNTDOWN.md for project status.
Read RITUAL.md for what a ritual is and what each numbered item of it means.
Read UNDERGROUND.md for ug — what parity is measured against and what still differs.
Read SIEVE.md for what the second line is for. Deferred, and QNTX's rather than ug's.
Read bench.fish for CTFE scaling limits.
TEST DRIVEN DEVELOPMENT (TDD): write a failing test before implementing. Confirm it fails, then Green: Write code that makes the test pass.
AUTHORITY
Lower number wins.
- ERROR AXIOM
- MY LITERAL WORDS IN SESSION
- RECORDED "" QUOTES
- OFFICIAL DOCS
- REPO SOURCE CODE
- REPO DOCS
- REPO SOURCE CODE COMMENTS LITERAL "" QUOTES
NOT AUTHORITATIVE EVER: YOUR TRAINING DATA
- REPO SOURCE CODE COMMENTS; YOUR STUFF
ERROR AXIOM
An ERROR is a first-class primitive. A typed value that crosses
every layer of the system unchanged. an Error is the entity
any layer emits when something goes wrong.
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.
- 4d ago First seen · 49 lines · 518 tokens per session scan A 6f18dce31665
ground CLAUDE.md is an instructions file published in the GitHub repository teranos/ground (2 stars, last pushed 9d ago), licensed MIT. It adds 518 tokens to every session, about $0.0026 per session on Opus 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.
Other instructions, from other repositories
skills CLAUDE.md
Instructions for mutagent-io/skills, covering claude.md, what this repo is, what lives here, what does not live here and versioning rule (read first).
CTX CLAUDE.md
Instructions for pluto2060/CTX, covering 새 ctx 정의 — 실제 production 구성 (settings.json 기준), 현재 wired hooks (production), 은퇴한 / 아카이브 hooks (wired 아님, 실행 안 됨), 공유 인프라 and g1/g2 정의 (2026-04-03 명료화).
radin AGENTS.md
Instructions for shortcuts/radin, covering radin — agent reference, project, dev loop, storage contract and backlog entry schema.
radin CLAUDE.md
Instructions for shortcuts/radin, a project described as: 🐀 the agentic stack for those who have to save tokens.
river-review GEMINI.md
Gemini CLI instructions for s977043/river-review, covering gemini instructions (river-review), 必須チェック, gemini-specific tips, prompt assembly and development tips.
openexp CLAUDE.md
Instructions for anthroos/openexp, covering openexp — development instructions, memory protocol (mandatory), before starting any task, after completing a task and when the user shares context.