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 divinevideo/divine-mobile --skill certmanager-dns01-gke-private-clustergit clone --depth 1 https://github.com/divinevideo/divine-mobileWrote 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/divinevideo/divine-mobile/certmanager-dns01-gke-private-cluster)<a href="https://agentmods.dev/skills/divinevideo/divine-mobile/certmanager-dns01-gke-private-cluster"><img src="https://agentmods.dev/badge/skills/divinevideo/divine-mobile/certmanager-dns01-gke-private-cluster/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/divinevideo/divine-mobile/certmanager-dns01-gke-private-cluster"><img src="https://agentmods.dev/badge/skills/divinevideo/divine-mobile/certmanager-dns01-gke-private-cluster.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 | $0.00189 | $0.01856 |
| Opus 5 | $0.00095 | $0.00928 |
| Sonnet 5 | $0.00038 | $0.00371 |
| Haiku 4.5 | $0.00019 | $0.00186 |
Grade D, and why
certmanager-dns01-gke-private-cluster scanned grade D with 3 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 11d 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.
Asks for rootmediumPrivilege escalation
A mod that escalates privileges can change anything on the machine, not only the project.
chmod 600 /tmp/certbot-cf/cloudflare.ini Recursive force deletehighDestructive command
rm -rf with a variable or a broad path is one typo away from removing the wrong tree.
rm -rf /tmp/certbot-cf Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
curl -s https://upload.example.com/ 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.
Cert-Manager DNS01 Challenge Failure in GKE Private Clusters
Problem
Cert-manager DNS01 ACME challenges get stuck in "pending" state indefinitely inside GKE private clusters. The propagation check fails with "DNS record for X not yet propagated" even though the TXT records are correctly created in Cloudflare and verifiable from everywhere — including from inside the cluster using busybox pods.
Context / Trigger Conditions
- cert-manager with Cloudflare DNS01 solver
- GKE private cluster (private nodes, public endpoint) with Cloud NAT
- Challenges show
presented: truebutstate: pendingfor hours - cert-manager logs show:
"propagation check failed" err="DNS record for \"example.com\" not yet propagated" dig TXT _acme-challenge.example.comfrom outside returns correct value- busybox
nslookupfrom inside cluster also returns correct value - Certificate resource shows
Ready: Falsewithreason: RequestChanged
Root Causes Discovered
1. Google Cloud intercepts DNS to 8.8.8.8
Inside GKE VPCs, DNS queries to 8.8.8.8 are intercepted by Google Cloud infrastructure.
For Cloudflare-managed domains, this can return NXDOMAIN even when the record exists.
This is because Google routes 8.8.8.8 through their internal DNS infrastructure which may
have different resolution behavior than the public Google DNS service.
Verification:
# From inside cluster - returns NXDOMAIN
kubectl run dns-test --image=busybox:1.36 --rm -i --restart=Never -- \
nslookup -type=TXT _acme-challenge.example.com 8.8.8.8
# From inside cluster - returns correct result
kubectl run dns-test --image=busybox:1.36 --rm -i --restart=Never -- \
nslookup -type=TXT _acme-challenge.example.com 1.1.1.1
2. Cert-manager propagation check still fails with correct resolvers
Even after configuring --dns01-recursive-nameservers=1.1.1.1:53,1.0.0.1:53 and
--dns01-recursive-nameservers-only=true, cert-manager's propagation check may still fail.
The Go DNS library used by cert-manager (miekg/dns) behaves differently from busybox's
nslookup. The exact cause is unclear but may relate to:
- DNS response parsing differences between miekg/dns and system resolvers
- TCP vs UDP DNS query differences
- Internal cert-manager caching or timing issues
- Cloud NAT interaction with DNS traffic patterns
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.
- 11d ago First seen · 171 lines · 189 tokens per session scan D f14db7c55a5c
certmanager-dns01-gke-private-cluster is a skill published in the GitHub repository divinevideo/divine-mobile (265 stars, last pushed today), licensed MPL-2.0. It adds 189 tokens to every session and 1,856 once invoked, about $0.0009 per session on Opus 5. A static security scan graded it D with 3 findings (asks for root, recursive force delete, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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