proof-of-commitment: Instructions file for Claude Code

CLAUDE.md

proof-of-commitment CLAUDE.md is an instructions file for Claude Code from piiiico/proof-of-commitment. It costs 1,166 tokens per session, scanned A, original, MIT.

Development instructions for Proof of Commitment, a browser extension that collects anonymous signals such as visits, time spent, and repeat engagement to show trust in websites.

In plain words
What is it for?
Use it when working on the extension, World ID login, local activity tracking, trust badges, business-registry data, anonymous proofs, or its API and MCP server.
Why use it?
It explains the product idea, browser-extension structure, privacy-related choices, and planned integrations so development stays consistent.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md.

This is piiiico/proof-of-commitment's own configuration. It tells Claude Code how to work on proof-of-commitment itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything proof-of-commitment configures →

Reuse

Borrowing it

Nothing to install: this file belongs to piiiico/proof-of-commitment. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/piiiico/proof-of-commitment/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/piiiico/proof-of-commitment

Made for: Claude Code.

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 proof-of-commitment CLAUDE.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/piiiico/proof-of-commitment/claude-md.svg)](https://agentmods.dev/instructions/piiiico/proof-of-commitment/claude-md)
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<a href="https://agentmods.dev/instructions/piiiico/proof-of-commitment/claude-md"><img src="https://agentmods.dev/badge/instructions/piiiico/proof-of-commitment/claude-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 1,166 This file is loaded in full into every session.
When invoked 1,166 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 $0.01166 $0.01166
Opus 5 $0.00583 $0.00583
Sonnet 5 $0.00233 $0.00233
Haiku 4.5 $0.00117 $0.00117

Measured 6d ago against content hash ccb8d8493ba9, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

proof-of-commitment 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 6d 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.

CLAUDE.md · 79 lines

How it starts

The opening of the file, as written. The whole thing — 79 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Commit

What this is

A browser extension that captures and surfaces real trust signals. Your browsing behavior proves trust — time spent, repeat visits, engagement patterns. Anonymous, verified by World ID. The output: commitment data that AI and humans can query instead of relying on reviews and content.

The thesis

Content is free to fake. Commitment is not. A repeat customer is a stronger signal than a thousand five-star reviews. We prove commitment without revealing identity.

Architecture (v0.2)

Browser extension (Chrome Manifest V3, branded "Commit")
  ├── World ID login (proof of unique person)
  ├── Site-contextual popup (trust signals for current domain)
  ├── Content script (trust badge injected on pages with data)
  ├── Passive: tracks page visits + time (stored locally)
  ├── Contributing toggle (user controls data sharing)
  ├── Brreg integration (Norwegian business registry, .no domains)
  ├── Active: zkTLS proof on order confirmations / bookings (v0.3)
  ├── Semaphore: anonymous submission (unlinkable per business) (v0.3)
  └── Backend: aggregates per business → API / MCP server

Key decisions

  • Site-contextual UI: Popup shows trust data for the current tab's domain, not a personal dashboard. Your data + network data together.
  • Contribute/consume duality: Extension both captures your commitments AND surfaces trust from other verified humans.
  • Contributing toggle: Users control whether their data syncs to the network. Default on, can be turned off.
  • Brreg as ONE feature: Norwegian business registry data surfaces on .no domains. Not the product — one enrichment source.
  • Unlinkable claims: Semaphore nullifiers scoped per business (v0.3).
  • Live data, not historical: Extension captures behavior as it happens.
  • No blockchain for v1: Simple backend aggregation.
  • World ID for MVP: Free, global, SDK ready. BankID as upgrade path.

Deployment (2026-03-23)

  • Backend: Cloudflare Workers + D1 (SQLite). URL: https://poc-backend.amdal-dev.workers.dev
  • D1 database: poc-commits (ID: 6ef7b6a9-1d09-4a0f-9ddd-c869a0582460)
  • Deploy: bun run deploy (builds worker, uploads via CF REST API — bypasses wrangler silent-failure)
  • Local dev: bun run dev:backend (uses src/backend/server.ts + db.ts with bun:sqlite)
  • Production: src/backend/worker.ts (CF Workers + D1 bindings, same API surface)
  • MCP server (local): bun run start:mcp (stdio, queries prod backend)
  • MCP server (remote): https://poc-backend.amdal-dev.workers.dev/mcp (Streamable HTTP, stateless)

Read the full file on GitHub · 79 lines

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. 6d ago First seen · 79 lines · 1,166 tokens per session scan A ccb8d8493ba9

Subscribe to this mod's changes

proof-of-commitment CLAUDE.md is an instructions file published in the GitHub repository piiiico/proof-of-commitment (7 stars, last pushed 2mo ago), licensed MIT. It adds 1,166 tokens to every session, about $0.0058 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.

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