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 Cap-go/capgo-skills --skill capacitor-app-upgradesgit clone --depth 1 https://github.com/Cap-go/capgo-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/cap-go/capgo-skills/capacitor-app-upgrades)<a href="https://agentmods.dev/skills/cap-go/capgo-skills/capacitor-app-upgrades"><img src="https://agentmods.dev/badge/skills/cap-go/capgo-skills/capacitor-app-upgrades/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/cap-go/capgo-skills/capacitor-app-upgrades"><img src="https://agentmods.dev/badge/skills/cap-go/capgo-skills/capacitor-app-upgrades.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket pass
- Snyk pass
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 | $0.00175 | $0.01665 |
| Opus 5.5 | $0.00070 | $0.00666 |
| Sonnet 5.5 | $0.00035 | $0.00333 |
| Haiku 4.5 | $0.00017 | $0.00167 |
Grade A, and why
capacitor-app-upgrades 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 14d 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.
How it starts
The opening of the file, as written. The whole thing — 83 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Capacitor App Upgrade (router)
Plan and run a Capacitor app upgrade one hop at a time, using the version-specific skill for each hop.
When to Use
TRIGGER when:
- User wants to upgrade a Capacitor app and the start or target version is unknown or more than one major apart
- User asks for "the latest Capacitor" (decide stable 8.5.x vs prerelease 9 with them)
- Xcode 27 builds fail on a Capacitor 8.4-or-older app (needs the 8.5 UIScene step)
npx cap migratefailed midway and the user needs to know where they are
Do not use:
- Plugin library repos ->
capacitor-plugin-upgrades - Cordova/PhoneGap apps ->
cordova-to-capacitor - CocoaPods to SPM only ->
cocoapods-to-spm
Live Project Snapshot
Current Capacitor packages from package.json:
!node -e "const fs=require('fs');if(!fs.existsSync('package.json'))process.exit(0);const pkg=JSON.parse(fs.readFileSync('package.json','utf8'));const out=[];for(const section of ['dependencies','devDependencies']){for(const [name,version] of Object.entries(pkg[section]||{})){if(name.startsWith('@capacitor/'))out.push(section+'.'+name+'='+version)}}console.log(out.sort().join('\n'))"
Native and Capacitor config paths:
!find . -maxdepth 3 \( -name 'capacitor.config.json' -o -name 'capacitor.config.ts' -o -name 'capacitor.config.js' -o -path './ios' -o -path './android' \)
Version Map (October 2026)
| Hop | Skill | Key requirements after the hop |
|---|---|---|
| 4 -> 5 | capacitor-app-upgrade-v4-to-v5 |
see skill |
| 5 -> 6 | capacitor-app-upgrade-v5-to-v6 |
see skill |
| 6 -> 7 | capacitor-app-upgrade-v6-to-v7 |
see skill |
| 7 -> 8 | capacitor-app-upgrade-v7-to-v8 |
Node 22, Xcode 26, iOS 15, minSdk 24, SDK 36, AGP 8.13, Gradle 8.14.3 |
| 8.x -> 8.5 | capacitor-uiscene-migration |
iOS UIScene lifecycle (SceneDelegate + scene manifest); required by Xcode 27 |
| 8.5 -> 9 | capacitor-app-upgrade-v8-to-v9 |
Node 24, Xcode 27, iOS 16, minSdk 26, SDK 37, AGP 9.2.1, Gradle 9.5.1 |
Capacitor stable is 8.5.x (latest). Capacitor 9 is a prerelease on the next tag (9.0.0-alpha.x): install with @next until 9.0.0 is GA, then @latest. Ask before moving a production app to a prerelease; 8.5 is the safe stopping point and already builds with Xcode 27.
What ships with it
1 file 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.
- 14d ago Changed · +4 lines · +121 tokens per session 5a45c3e3a52e
- 1mo ago First seen · 79 lines · 54 tokens per session scan A e73f4ca55426
capacitor-app-upgrades is a skill published in the GitHub repository Cap-go/capgo-skills (73 stars, last pushed 7d ago), licensed MIT. It adds 175 tokens to every session and 1,665 once invoked, about $0.0007 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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