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 vobiz-ai/Agent-Skills --skill vobiz-phone-numbersgit clone --depth 1 https://github.com/vobiz-ai/Agent-SkillsWrote 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/vobiz-ai/agent-skills/vobiz-phone-numbers)<a href="https://agentmods.dev/skills/vobiz-ai/agent-skills/vobiz-phone-numbers"><img src="https://agentmods.dev/badge/skills/vobiz-ai/agent-skills/vobiz-phone-numbers/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/vobiz-ai/agent-skills/vobiz-phone-numbers"><img src="https://agentmods.dev/badge/skills/vobiz-ai/agent-skills/vobiz-phone-numbers.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 | $0.00044 | $0.01699 |
| Opus 5 | $0.00022 | $0.00849 |
| Sonnet 5 | $0.00009 | $0.00340 |
| Haiku 4.5 | $0.00004 | $0.00170 |
Grade A, and why
vobiz-phone-numbers scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 12d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
curl -s "https://api.vobiz.ai/api/v1/Account/$AUTH_ID/inventory/numbers?country=IN&search=80&per_page=25" \ How it starts
The opening of the file, as written. The whole thing — 78 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Vobiz Phone Numbers skill
Use this when the user wants to buy a new phone number, attach it to a trunk, hand it to a sub-account, or release it.
Base URL: https://api.vobiz.ai/api/v1. Auth: X-Auth-ID + X-Auth-Token on every request.
Endpoints
| Op | Method + Path | Notes |
|---|---|---|
| Search inventory | GET /Account/{auth_id}/inventory/numbers |
Filter by country, search (substring on E.164), page, per_page (max 100) |
| Purchase | POST /Account/{auth_id}/numbers/purchase-from-inventory |
Body: { "e164": "+91...", "currency": "INR" }. Debits setup_fee + monthly_fee |
| List owned | GET /Account/{auth_id}/numbers |
Returns items (status, fees, application_id, trunk_group_id). include_subaccounts defaults true for MA_ |
| Assign to trunk | POST /Account/{auth_id}/numbers/{phone_number}/assign |
Body: { "trunk_group_id": "<uuid>" }. Path number must be %2B-encoded |
| Unassign from trunk | DELETE /Account/{auth_id}/numbers/{phone_number}/assign |
Path number must be %2B-encoded |
| Assign to sub-account | POST /account/{auth_id}/numbers/{e164}/assign-subaccount |
lowercase account, %2B-encoded. Body: { "sub_account_id": "SA_..." } |
| Unassign from sub-account | DELETE /account/{auth_id}/numbers/{e164}/assign-subaccount |
lowercase account. 15-day cool-off; admin ?force=true |
| Release (unrent) | DELETE /Account/{auth_id}/numbers/{e164} |
Permanent — returns to inventory |
Casing — copy verbatim
Vobiz is inconsistent here. Match the spec exactly or you get a 404:
- Capital
/Account/: inventory, purchase, list, get, assign/unassign to trunk, release. - Lowercase
/account/: assign/unassign to a sub-account only — and the path segment is the singularassign-subaccount.
Discover → purchase → assign recipe
# 1. Find an unassigned IN number (status=active, auth_id=NULL only)
curl -s "https://api.vobiz.ai/api/v1/Account/$AUTH_ID/inventory/numbers?country=IN&search=80&per_page=25" \
-H "X-Auth-ID: $AUTH_ID" -H "X-Auth-Token: $AUTH_TOKEN"
# 2. Purchase by e164 (debits setup_fee + monthly_fee from the balance)
curl -s -X POST "https://api.vobiz.ai/api/v1/Account/$AUTH_ID/numbers/purchase-from-inventory" \
-H "X-Auth-ID: $AUTH_ID" -H "X-Auth-Token: $AUTH_TOKEN" -H "Content-Type: application/json" \
-d '{"e164":"+918065551234","currency":"INR"}'
# 3. Route inbound calls to a trunk (note the %2B-encoded +)
curl -s -X POST "https://api.vobiz.ai/api/v1/Account/$AUTH_ID/numbers/%2B918065551234/assign" \
-H "X-Auth-ID: $AUTH_ID" -H "X-Auth-Token: $AUTH_TOKEN" -H "Content-Type: application/json" \
-d '{"trunk_group_id":"e3e55a78-1234-5678-90ab-cdef12345678"}'
# 4. (Optional) hand the DID to a sub-account — lowercase /account/, singular segment
curl -s -X POST "https://api.vobiz.ai/api/v1/account/$AUTH_ID/numbers/%2B918065551234/assign-subaccount" \
-H "X-Auth-ID: $AUTH_ID" -H "X-Auth-Token: $AUTH_TOKEN" -H "Content-Type: application/json" \
-d '{"sub_account_id":"SA_XXXXXX"}'
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.
- 12d ago First seen · 78 lines · 44 tokens per session scan A 41173eec17e3
vobiz-phone-numbers is a skill published in the GitHub repository vobiz-ai/Agent-Skills (2 stars, last pushed 23d ago), licensed MIT. It adds 44 tokens to every session and 1,699 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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