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tell-plumbing-reference

tell-plumbing-reference is a cursor rule for Cursor from ashishpatill/tell-proof. It costs 453 tokens per session, scanned A, original, MIT.

A project rule for using an anonymised reference project when planning agent-platform features such as MCP connections, command-line tools, authentication, and design workflows.

In plain words
What is it for?
Use it when planning how agents install MCP tools, ship command-line features, stage skills, protect routes, or structure design tasks.
Why use it?
It gives developers reusable design patterns without putting the other project's name or private details into code, documentation, or commits.

Cursor rule for Cursor

Written for Cursor: installed under .cursor/.

not rated 1repo 12d ago A scan 453 tokens original MIT

Good fit Use it when planning how agents install MCP tools, ship command-line features, stage skills, protect routes, or structure design tasks.

Compare 6 cursor rules from other repositories ↓
Install with agentmods
npx agentmods add rules/ashishpatill/tell-proof/tell-plumbing-reference
View source ↗ ashishpatill/tell-proof
Install

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.

Clone the repo
git clone --depth 1 https://github.com/ashishpatill/tell-proof

Made for: Cursor.

Wrote 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.

agentmods badge for tell-plumbing-reference

README.md
[![agentmods](https://agentmods.dev/badge/rules/ashishpatill/tell-proof/tell-plumbing-reference.svg)](https://agentmods.dev/rules/ashishpatill/tell-proof/tell-plumbing-reference)
Your own site
<a href="https://agentmods.dev/rules/ashishpatill/tell-proof/tell-plumbing-reference"><img src="https://agentmods.dev/badge/rules/ashishpatill/tell-proof/tell-plumbing-reference.svg" alt="Measured on agentmods" height="20"></a>
Per session 453 This file is loaded in full into every session.
When invoked 453 The same file — it is already loaded in full.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00453 $0.00453
Opus 5 $0.00227 $0.00227
Sonnet 5 $0.00091 $0.00091
Haiku 4.5 $0.00045 $0.00045

Measured 7d ago against content hash 0554265ef8a7, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

tell-plumbing-reference 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 7d 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.

.cursor/rules/tell-plumbing-reference.mdc · 42 lines

What it actually says

Plumbing & platform reference (project memory)

Tell keeps an anonymised study of a peer local-first design daemon for patterns only (MCP install strategies, CLI shipping, skill staging, route-class auth, design-task flow shapes). Use it when building agent/platform features.

Where the plans live (committed)

Doc Scope
docs/11_AGENT_PLATFORM_INTEGRATION_PLAN.md MCP, one-click/deeplink install, CLI, skills packaging, multi-agent hosts
docs/12_AUTH_SECURITY_BOUNDARIES_PLAN.md Capture tokens, origins, run-scoped capabilities, pairing — not product login
docs/13_DESIGN_CAPABILITY_FLOWS_PLAN.md Common/complex design tasks mapped onto Ashish's loop

Where the peer identity lives (never commit)

  • research/plumbing-reference.local.json — clone URL, local checkout path, study notes
  • Same anonymity rule as research/corpus.local.json: no third-party product names or URLs in committed code, docs, comments, or commit messages

How to use the reference

  1. If the local JSON exists, clone/update to the path it names (default /tmp/learn-plumbing/reference).
  2. Study patterns; implement Tell-shaped equivalents under packages/*, apps/web, @tell/schema.
  3. For template layout plumbing only (sticky, stacking, focus, landmarks), follow tell-template-craft Phase A → encode floors in basics-checklist.ts.
  4. For craft/aesthetics, use design-research-loop + docs/10_DESIGN_EVIDENCE.md only — never peer theme packs.

Non-negotiables when adapting

  • Deterministic core; never auto-apply; zod at boundaries; offline fixture fallback
  • Do not copy peer source into this repo
  • Do not mention the peer’s name in anything that gets committed
Changes

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.

  1. 7d ago First seen · 42 lines · 453 tokens per session scan A 0554265ef8a7

Subscribe to this mod's changes

tell-plumbing-reference is a cursor rule published in the GitHub repository ashishpatill/tell-proof (1 stars, last pushed 12d ago), licensed MIT. It adds 453 tokens to every session, about $0.0023 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.

FrontendMemory and contextSecurityaicursordesign-criticdesign-systemsdeveloper-tools
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