What is runner-publish?

Instructions for maintaining and checking the workflow that generates and publishes Firebase Cloud Messaging host lists. They cover Go tests, local dry runs, DNS collection, GitHub Actions, SSH keys, and server deployment.

Testing or troubleshooting the Go command, validating DNS and connectivity, changing the scheduled GitHub Actions workflow, and deploying generated host files over SSH.

They provide repeatable checks and deployment rules for changing the generation pipeline without publishing invalid files or breaking the production update process.

How cagedbird043/fcm-hosts-next configures Claude Code and Codex

Reuse

Borrowing it

Nothing to install: this file belongs to cagedbird043/fcm-hosts-next. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/cagedbird043/fcm-hosts-next/main/.agents/skills/runner-publish/SKILL.md

Clone the repo

git clone --depth 1 https://github.com/cagedbird043/fcm-hosts-next

Made for: Claude Code, Codex.

Wrote 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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/cagedbird043/fcm-hosts-next/runner-publish/github.svg)](https://agentmods.dev/skills/cagedbird043/fcm-hosts-next/runner-publish)

Your own site

<a href="https://agentmods.dev/skills/cagedbird043/fcm-hosts-next/runner-publish"><img src="https://agentmods.dev/badge/skills/cagedbird043/fcm-hosts-next/runner-publish/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/cagedbird043/fcm-hosts-next/runner-publish"><img src="https://agentmods.dev/badge/skills/cagedbird043/fcm-hosts-next/runner-publish.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 25 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 673 The whole file, excluding the scripts and references it only reads on demand.

Security scan B 2 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits

NVIDIA SkillSpector pass 7 Sept 2026

How audits are shown

Origin original No closer match found in the catalogue.

Token cost

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	$0.00025	$0.00673
Opus 5.5	$0.00010	$0.00269
Sonnet 5.5	$0.00005	$0.00135
Haiku 4.5	$0.00003	$0.00067

Measured 6d ago against content hash e20a2f71a179, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade B, and why

runner-publish scanned grade B with 2 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.

Asks for rootmediumPrivilege escalation

A mod that escalates privileges can change anything on the machine, not only the project.

ssh bj-edge sudo systemctl start fcm-hosts-next.service

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl -sI https://fcm-hosts.cagedbird.cn/fcm_dual.hosts

.agents/skills/runner-publish/SKILL.md · 61 lines

How it starts

The opening of the file, as written. The whole thing — 61 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Trigger

Modifying or validating scripts/publish.sh, deploy/, or .github/workflows/main.yml.
Troubleshooting FCM hosts generation, publication, or push failures.
Changing DNS query/validation logic and verifying behavior.

Entry Point

Production script: scripts/publish.sh
systemd units: deploy/fcm-hosts-next.service, deploy/fcm-hosts-next.timer
Go CLI entry: go run ./cmd/fcmhost run
Generated outputs: fcm_dual.hosts, fcm_ipv4.hosts, fcm_ipv6.hosts

Workflow

Local Verification

Before pushing any script or Go CLI updates:

Run test suite:
```
go test ./...
```
Dry run verification (checks FCM 5228 connectivity without dns harvest):
```
go run ./cmd/fcmhost run -workdir . -dns=false -v
```
Perform full local run to verify DNS harvesting and expansion:
```
go run ./cmd/fcmhost run -workdir .
```

Production on bj-edge

fcm-hosts-next.timer runs 4 times daily (UTC 01:17, 07:17, 13:17, 19:17) as user fcm-runner.
Each run resets /var/lib/fcm-runner/fcm-hosts-next to origin/main, tests, generates, installs the hosts files into /srv/cagedbird/fcm-hosts-next/, then commits and pushes them.

Manual refresh and logs:

ssh bj-edge sudo systemctl start fcm-hosts-next.service
ssh bj-edge journalctl -u fcm-hosts-next.service -n 50

Unit changes in deploy/ are not applied automatically: copy them to /etc/systemd/system/ and run sudo systemctl daemon-reload.
GitHub Actions only runs go test and shellcheck on code changes; it never harvests or publishes.

Verification

Verify Go build and test status.
Check local generated fcm_dual.hosts, fcm_ipv4.hosts, fcm_ipv6.hosts files for correct format (IP host entries).

Check remote serving URL:

curl -sI https://fcm-hosts.cagedbird.cn/fcm_dual.hosts

Guardrails

Push over SSH 443: fcm-runner pushes with the writable repo deploy key fcm-runner@bj-edge; its ~/.ssh/config maps github.com to ssh.github.com:443. Do not switch to HTTPS tokens.
Prevent Workflow Loop: Generated commits MUST include [skip ci] in the message.
No Direct Remote Edits: Do not edit served host files directly on the server. Always change the repository and let the next run publish.

Read the full file on GitHub · 61 lines

Changes

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 Changed · +6 lines · +5 tokens per session scan A → B e20a2f71a179
2mo ago First seen · 55 lines · 20 tokens per session scan A 426aa3f778c5

Subscribe to this mod's changes

runner-publish is a skill published in the GitHub repository cagedbird043/fcm-hosts-next (59 stars, last pushed yesterday), licensed MIT. It adds 25 tokens to every session and 673 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it B with 2 findings (asks for root, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

CI and CD DevOps and cloud Git and workflow

runner-publish next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
runner-publishcagedbird043/fcm-hosts-next	Skill	59	yesterday	MIT	B	25	Claude Code, Codex
deployment-patternsaffaan-m/ECC	Skill	298k	4d ago	MIT	A	41	Claude Code, Kiro
agent-github-modesruvnet/ruflo	Skill	81k	yesterday	MIT	A	21	Claude Code
baby-sitlangchain-ai/open-swe	Skill	11k	yesterday	MIT	A	30	Claude Code, Codex
chinese-git-workflowjnMetaCode/superpowers-zh	Skill	8.5k	11d ago	MIT	A	69	Claude Code
atmos-hookscloudposse/atmos	Skill	1.4k	yesterday	Apache-2.0	A	46	Claude Code
atmos-procloudposse/atmos	Skill	1.4k	yesterday	Apache-2.0	A	38	Claude Code

fcm-hosts-next: Skill for Claude Code