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 cyrusagents/cyrus --skill cyrus-setup-slackgit clone --depth 1 https://github.com/cyrusagents/cyrusWrote 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/cyrusagents/cyrus/cyrus-setup-slack)<a href="https://agentmods.dev/skills/cyrusagents/cyrus/cyrus-setup-slack"><img src="https://agentmods.dev/badge/skills/cyrusagents/cyrus/cyrus-setup-slack/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/cyrusagents/cyrus/cyrus-setup-slack"><img src="https://agentmods.dev/badge/skills/cyrusagents/cyrus/cyrus-setup-slack.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket pass
- Snyk warn
- NVIDIA SkillSpector warn
SkillSpector: 13 findings, up to high
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- high Privilege Escalation · line 15 Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
- high Privilege Escalation · line 30 Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
- high Privilege Escalation · line 256 Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
- high Privilege Escalation · line 257 Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
- high Privilege Escalation · line 264 Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
- high Privilege Escalation · line 266 Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
- high Privilege Escalation · line 286 Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
- high Privilege Escalation · line 287 Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
- medium Rogue Agent · line 3 Skill establishes unauthorized persistence across sessions via cron jobs, startup scripts, or state files. Session persistence allows an attacker to maintain access beyond the current interaction.Fix: Remove any persistence mechanisms (cron jobs, startup scripts, state files). Skills should not maintain state across sessions without explicit user consent.
- medium Rogue Agent · line 124 Skill establishes unauthorized persistence across sessions via cron jobs, startup scripts, or state files. Session persistence allows an attacker to maintain access beyond the current interaction.Fix: Remove any persistence mechanisms (cron jobs, startup scripts, state files). Skills should not maintain state across sessions without explicit user consent.
- medium Data Exfiltration · line 138 Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
- medium Data Exfiltration · line 155 Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
- medium Data Exfiltration · line 224 Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
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 | $0.00028 | $0.02484 |
| Opus 5 | $0.00014 | $0.01242 |
| Sonnet 5 | $0.00006 | $0.00497 |
| Haiku 4.5 | $0.00003 | $0.00248 |
Grade C, and why
cyrus-setup-slack scanned grade C with 1 finding 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 9d 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.
Harvests environment variableshighData exfiltration
Enumerating or grepping the environment for keys collects credentials unrelated to what the mod says it does.
## Step 5: Install App & Collect Credentials How it starts
The opening of the file, as written. The whole thing — 298 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CRITICAL: Never use Read, Edit, or Write tools on ~/.cyrus/.env or any file inside ~/.cyrus/. Use only Bash commands (grep, printf >>, etc.) to interact with env files — secrets must never be read into the conversation context. Never scrape, extract, or read secret values from web pages — guide the user to copy them manually.
Setup Slack
Creates a Slack application from a pre-built manifest so Cyrus can respond to messages in Slack channels.
Step 1: Check Existing Configuration
grep -E '^SLACK_BOT_TOKEN=' ~/.cyrus/.env 2>/dev/null
If SLACK_BOT_TOKEN is already set, inform the user:
Slack is already configured. Skipping this step. To reconfigure, remove
SLACK_BOT_TOKENandSLACK_SIGNING_SECRETfrom~/.cyrus/.envand re-run.
Skip to completion.
Step 2: Read Variables
Read the base URL (set by setup-endpoint):
grep '^CYRUS_BASE_URL=' ~/.cyrus/.env | cut -d= -f2-
You also need AGENT_NAME and AGENT_DESCRIPTION — these were collected in Step 0 of the orchestrator and should be available from the conversation context.
Step 3: Build Manifest JSON
Construct the manifest, substituting <AGENT_NAME>, <AGENT_DESCRIPTION>, and <CYRUS_BASE_URL> with actual values.
IMPORTANT: Use the manifest template EXACTLY as shown below. The event subscription path MUST be /slack-webhook (not /slack/events or any other path). This matches the route registered by SlackEventTransport in the Cyrus codebase.
NOTE: this list of scopes must be kept in sync with the Slack App configuration and the list of scopes defined at https://github.com/cyrusagents/cyrus-hosted/blob/main/apps/app/src/lib/slack/constants.ts. If you change scopes here, propose matching changes there and update any live Slack App configuration that relies on this manifest.
{
"display_information": {
"name": "<AGENT_NAME>",
"description": "<AGENT_DESCRIPTION>",
"background_color": "#00240e"
},
"features": {
"bot_user": {
"display_name": "<AGENT_NAME>",
"always_online": true
}
},
"oauth_config": {
"redirect_urls": [
"<CYRUS_BASE_URL>/slack/oauth/callback"
],
"scopes": {
"user": [
"canvases:read",
"canvases:write",
"channels:history",
"chat:write",
"groups:history",
"im:history",
"mpim:history",
"users:read",
"users:read.email",
"reactions:write",
"search:read.public",
"search:read.private",
"search:read.mpim",
"search:read.im",
"search:read.files",
"search:read.users"
],
"bot": [
"groups:read",
"app_mentions:read",
"assistant:write",
"canvases:write",
"channels:history",
"channels:read",
"chat:write",
"chat:write.customize",
"groups:history",
"im:history",
"im:read",
"files:read",
"files:write",
"mpim:history",
"reactions:write",
"search:read.files",
"search:read.public",
"search:read.users",
"users:read",
"users:read.email",
"mpim:read"
]
},
"pkce_enabled": false
},
"settings": {
"event_subscriptions": {
"request_url": "<CYRUS_BASE_URL>/slack-webhook",
"bot_events": [
"app_mention",
"member_joined_channel",
"message.channels",
"message.groups",
"message.mpim",
"message.im"
]
},
"org_deploy_enabled": false,
"socket_mode_enabled": false,
"token_rotation_enabled": false
}
}
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.
- 9d ago First seen · 298 lines · 28 tokens per session scan C ba1b66f0c3e2
cyrus-setup-slack is a skill published in the GitHub repository cyrusagents/cyrus (798 stars, last pushed yesterday), licensed Apache-2.0. It adds 28 tokens to every session and 2,484 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it C with 1 finding (harvests environment variables). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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