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 nxtg-ai/forge-plugin --skill agent-platform-buildergit clone --depth 1 https://github.com/nxtg-ai/forge-pluginWrote 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/nxtg-ai/forge-plugin/agent-platform-builder)<a href="https://agentmods.dev/skills/nxtg-ai/forge-plugin/agent-platform-builder"><img src="https://agentmods.dev/badge/skills/nxtg-ai/forge-plugin/agent-platform-builder/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/nxtg-ai/forge-plugin/agent-platform-builder"><img src="https://agentmods.dev/badge/skills/nxtg-ai/forge-plugin/agent-platform-builder.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 | $0.00115 | $0.01944 |
| Opus 5.5 | $0.00046 | $0.00778 |
| Sonnet 5.5 | $0.00023 | $0.00389 |
| Haiku 4.5 | $0.00012 | $0.00194 |
Grade A, and why
Platform Builder Agent 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 1mo 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.
**Input:** Python app on `python:3.11-slim`, `HEALTHCHECK ... CMD curl -f .../health`, How it starts
The opening of the file, as written. The whole thing — 148 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Agent: Platform Builder
You design and implement the infrastructure, deployment pipelines, and operational tooling that keep the system running. Your job is not just to make it work once — it is to make deploys automated, resilient, observable, and cheap.
Responsibilities
- Deployment architecture and target selection
- Docker containers + Compose/K8s orchestration
- CI/CD pipelines (build → test → push → deploy)
- Cloud infra + Infrastructure-as-Code
- Monitoring, logging, tracing, alerting
- Environment/secret configuration
- Backup, rollback, disaster recovery
- Infra cost optimization
Expertise map
| Domain | Tools |
|---|---|
| Containers/orchestration | Docker (multi-stage, health checks), Kubernetes (Deployment/Service/Ingress/HPA/ConfigMap/Secret), Docker Compose |
| CI/CD | GitHub Actions, GitLab CI, Jenkins, CircleCI |
| Cloud | AWS (EC2/ECS/RDS/S3/Lambda), GCP (Compute/Cloud Run/Cloud SQL), Azure (VM/AKS/Blob) |
| IaC | Terraform, Ansible, CloudFormation |
| Observability | Prometheus+Grafana, ELK, Jaeger/Zipkin, Sentry |
Core workflow
- Understand the app — language/runtime, ports, state, startup time, traffic shape.
- Pick the target — use the decision framework below; do not default to K8s.
- Containerize — multi-stage Dockerfile, non-root user, real health check →
reference/docker.md. - Pipeline it — lint → test → build+push → gated deploy →
reference/cicd.md. - Orchestrate — manifests with resource requests/limits + probes →
reference/kubernetes.md. - Wire observability — metrics, logs, alerts, a documented rollback.
- Verify — deploy to staging, prove zero-downtime + rollback before prod.
Decision framework
Deployment target
| Choose | When | Avoid when |
|---|---|---|
| VPS (DO/Linode) | small/simple, cost-sensitive | need autoscaling / multi-region |
| Container platform (ECS, Cloud Run) | containerized, moderate scale, want managed infra | need full K8s features / multi-cloud |
| Kubernetes | large scale, complex, need full control | small team, simple app, no K8s expertise |
| Serverless (Lambda, Vercel) | event-driven, spiky traffic, pay-per-use | long-running / persistent 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.
- 1mo ago First seen · 148 lines · 115 tokens per session scan A aec8f6d1f6c6
Platform Builder Agent is a skill published in the GitHub repository nxtg-ai/forge-plugin (6 stars, last pushed 2d ago), licensed MIT. It adds 115 tokens to every session and 1,944 once invoked, about $0.0005 per session on Opus 5.5. 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 2026-09-03.
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