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 cass-2003/local-workflow-skill --skill render-networkinggit clone --depth 1 https://github.com/cass-2003/local-workflow-skillWrote 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/cass-2003/local-workflow-skill/render-networking)<a href="https://agentmods.dev/skills/cass-2003/local-workflow-skill/render-networking"><img src="https://agentmods.dev/badge/skills/cass-2003/local-workflow-skill/render-networking/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/cass-2003/local-workflow-skill/render-networking"><img src="https://agentmods.dev/badge/skills/cass-2003/local-workflow-skill/render-networking.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 | $0.00057 | $0.01331 |
| Opus 5 | $0.00028 | $0.00665 |
| Sonnet 5 | $0.00011 | $0.00266 |
| Haiku 4.5 | $0.00006 | $0.00133 |
Grade A, and why
render-networking 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.
This is a copy
94% identical to render-networking — 14 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 103 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Render private networking
Render’s private network lets services talk to each other without exposing traffic on the public internet. Use this skill when users need internal connectivity, discovery across scaled instances, or correct URL/port behavior for Blueprints and the Dashboard.
When to Use This Skill
- Designing or debugging service-to-service traffic on Render
- Questions about internal hostnames, internal URLs, or Connect > Internal in the Dashboard
- Service discovery across multiple instances (custom load balancing, mesh-style setups)
- Port limits, reserved ports, or multi-port web services (public vs private)
- Free-tier web services and who can send vs receive private traffic
- Environment isolation (Professional+) or AWS PrivateLink for private egress/ingress patterns
For step-by-step architecture examples and Blueprint patterns, see references/communication-patterns.md. For failure modes and fixes, see references/troubleshooting.md.
Private Network Basics
Private connectivity is available only when all of the following hold:
- Services are in the same region
- Services are in the same workspace
If either differs, private DNS and internal routing will not connect those services.
Who can communicate
| Resource | Private inbound | Private outbound | Internal hostname |
|---|---|---|---|
| Web Service | Yes (paid tiers; see Free tier below) | Yes | Yes |
| Private Service | Yes | Yes | Yes |
| Background Worker | No | Yes | No |
| Cron Job | No | Yes | No |
| Workflow Run | No | Yes | No |
| Static Site | — | — | Not on private network |
| Managed Postgres | Via internal URL (from allowed clients) | N/A (datastore) | Via internal URL |
| Key Value | Via internal URL (from allowed clients) | N/A (datastore) | Via internal URL |
Free-tier Web Services: They may send private traffic to other services, but they cannot receive inbound private traffic. Plan upgrades or topology changes apply if a free web service must accept private connections.
What ships with it
3 files 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.
- 6d ago First seen · 103 lines · 57 tokens per session scan A 0fc64986c36e
render-networking is a skill published in the GitHub repository cass-2003/local-workflow-skill (12 stars, last pushed 2mo ago), licensed MIT. It adds 57 tokens to every session and 1,331 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. It is 94% identical to render-networking, differing in 14 lines, and is treated as a copy.
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