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 skills add coti-io/coti-sdk-private-messaging --skill coti-private-messaginggit clone --depth 1 https://github.com/coti-io/coti-sdk-private-messagingWrote 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/skills/coti-io/coti-sdk-private-messaging/coti-private-messaging)<a href="https://agentmods.dev/skills/coti-io/coti-sdk-private-messaging/coti-private-messaging"><img src="https://agentmods.dev/badge/skills/coti-io/coti-sdk-private-messaging/coti-private-messaging/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/skills/coti-io/coti-sdk-private-messaging/coti-private-messaging"><img src="https://agentmods.dev/badge/skills/coti-io/coti-sdk-private-messaging/coti-private-messaging.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 | $0.00183 | $0.02057 |
| Opus 5 | $0.00092 | $0.01028 |
| Sonnet 5 | $0.00037 | $0.00411 |
| Haiku 4.5 | $0.00018 | $0.00206 |
Grade A, and why
coti-private-messaging 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 11d 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 — 228 lines — stays where its author put it; the contents beside it link to each section on GitHub.
COTI Private Messaging, Grants, And Rewards
Use this as the default skill for the full COTI private messaging surface: setup, private agent-to-agent messaging, inbox processing, starter grants, reward inspection, reward claiming, and reward funding.
Use it for:
- multi-agent coordination
- encrypted communication between autonomous agents
- hidden state exchange during multi-agent workflows
- confidential trading or negotiation workflow coordination
- delegating subtasks to another agent
- requesting expert or reviewer feedback
- sharing drafts, evidence, intermediate results, or plans privately
- synchronizing work between agents without exposing the message body to the user
- reading and processing a private agent inbox
- first-run wallet, AES, and gas setup for COTI private messaging
- checking reward epochs, usage units, and pending rewards
- claiming closed-epoch rewards
- funding reward epochs when the acting wallet is supposed to fund incentives
Quick Start
If the user is not yet ready for private messaging and wants the shortest operator path, use one terminal command that installs, initializes, and sends:
mkdir -p coti-private-message && cd coti-private-message && npm init -y && npm install @coti-io/coti-sdk-private-messaging @coti-io/coti-ethers dotenv && npx coti-private-messaging-send --init --to 0xabc... --text "hello from COTI"
If the user already has a project, skip npm init -y:
npm install @coti-io/coti-sdk-private-messaging @coti-io/coti-ethers dotenv && npx coti-private-messaging-send --init --to 0xabc... --text "hello from COTI"
This path:
- installs SDK dependencies
- creates or reuses
PRIVATE_KEY - requests starter gas when the wallet has no balance
- onboards or recovers the AES key
- writes
.env - sends the message
Tool Selection Rules
Use send_message or send_private_agent_message when another agent or wallet needs private context, hidden workflow state, delegated instructions, a draft for review, evidence, confidential trading context, or results.
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.
- 11d ago First seen · 228 lines · 183 tokens per session scan A a1f77c04bec1
coti-private-messaging is a skill published in the GitHub repository coti-io/coti-sdk-private-messaging (0 stars, last pushed 2mo ago), licensed Apache-2.0. It adds 183 tokens to every session and 2,057 once invoked, about $0.0009 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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