Getting it into your agent
It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.
git clone --depth 1 https://github.com/mishahanin/heading-osnpx agentmods add skills/mishahanin/heading-os/google-contactsWrote 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/mishahanin/heading-os/google-contacts)<a href="https://agentmods.dev/skills/mishahanin/heading-os/google-contacts"><img src="https://agentmods.dev/badge/skills/mishahanin/heading-os/google-contacts/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/mishahanin/heading-os/google-contacts"><img src="https://agentmods.dev/badge/skills/mishahanin/heading-os/google-contacts.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 3 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 69 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 170 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 Excessive Agency · line 15 Skill selects an external model or provider that may use a different account or billing plan than the operator expects. Undisclosed model switches can cause unexpected cost or quota consumption.Fix: Remove the model/provider override or disclose it prominently and require explicit operator approval before invoking an external coding CLI or billed model.
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 | $0.00138 | $0.01549 |
| Opus 5 | $0.00069 | $0.00775 |
| Sonnet 5 | $0.00028 | $0.00310 |
| Haiku 4.5 | $0.00014 | $0.00155 |
Grade A, and why
google-contacts 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 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.
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 — 171 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Google Contacts
Search, add, edit, list, get, and delete contacts in Google Contacts. Standalone connector via the Google People API -- NOT connected to the workspace CRM.
Prerequisites
-
Install packages:
pip install google-api-python-client google-auth-httplib2 google-auth-oauthlib python-dotenv -
Set up OAuth credentials:
- Go to Google Cloud Console
- Create a project (or use existing)
- Enable the People API (APIs & Services -> Library -> search "People API")
- Go to Credentials -> Create Credentials -> OAuth 2.0 Client ID
- Application type: Desktop application
- Download the JSON file
- Save as
.sessions/google/credentials.json
-
First run: Any command opens a browser for OAuth consent. Sign in and approve. 2FA is handled by Google's login flow. Token is cached automatically.
Script Location
scripts/google-contacts.py
Quick Reference
| Command | Description |
|---|---|
search "query" |
Prefix search on names, emails, phones (max 30 results) |
add --name "Name" [--email] [--phone] [--company] [--title] [--notes] |
Create a new contact |
get people/cXXX |
Get full detail for a single contact |
edit people/cXXX [--email] [--phone] [--company] [--title] [--notes] |
Update fields on existing contact |
list [--limit N] |
List contacts sorted by last modified (default: 100) |
delete people/cXXX |
Permanently delete a contact |
All commands support --json for machine-readable output.
Usage Examples
Search
python scripts/google-contacts.py search "John"
python scripts/google-contacts.py search "acme.com"
python scripts/google-contacts.py search "John" --json
Add Contact
python scripts/google-contacts.py add --name "John Doe" --email "[email protected]" --company "Acme Corp" --title "CTO"
python scripts/google-contacts.py add --name "Jane Smith" --phone "+1-555-0100" --notes "Met at MWC 2026"
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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 · 171 lines · 138 tokens per session scan A 3c9da657ac11
google-contacts is a skill published in the GitHub repository mishahanin/heading-os (11 stars, last pushed today), licensed Apache-2.0. It adds 138 tokens to every session and 1,549 once invoked, about $0.0007 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 2026-08-30.
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