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 agentmods add skills/profsynapse/nexus/nexus-mobile-compatnpx skills add ProfSynapse/nexus --skill nexus-mobile-compatgit clone --depth 1 https://github.com/ProfSynapse/nexusWrote 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/profsynapse/nexus/nexus-mobile-compat)<a href="https://agentmods.dev/skills/profsynapse/nexus/nexus-mobile-compat"><img src="https://agentmods.dev/badge/skills/profsynapse/nexus/nexus-mobile-compat.svg" alt="Measured on agentmods" 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 | $0.00099 | $0.01174 |
| Opus 5 | $0.00049 | $0.00587 |
| Sonnet 5 | $0.00020 | $0.00235 |
| Haiku 4.5 | $0.00010 | $0.00117 |
Grade A, and why
nexus-mobile-compat 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 5d 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 — 85 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Nexus mobile & plugin-store safety
Nexus ships isDesktopOnly: false, so main.js runs on phones with no Node.js.
The defect this skill exists to prevent has no compiler and no type behind it: a
static import executes during module init, before any Platform.isDesktop
check, so one import on the startup path takes the plugin down at launch on every
phone — from a diff that looks unrelated.
The reachability checker below is now wired into the repo's own gate: npm run lint runs lint:obsidian (ESLint) then lint:mobile (this checker), and npm run build runs npm run lint first. A violation fails the build. Run the
checker directly anyway while you work — the gate is the floor, not the loop.
Workflow
Pick the row that matches the job and follow that protocol. Do not improvise from this page; each protocol carries the steps and the checks.
| Situation | Protocol |
|---|---|
| Adding or upgrading an npm package | protocols/vet-a-dependency.md |
| Need a Node built-in, a heavy module, or a desktop-only feature | protocols/import-without-crashing.md |
| Writing, reading or deleting at a caller-supplied vault path | protocols/confine-a-vault-path.md |
| About to ship a change that touched imports or the startup path | protocols/verify-mobile-safety.md |
| "It won't load on my phone" / a mobile-only failure | protocols/diagnose-mobile-crash.md |
| Session that used this skill is ending | protocols/self-refine.md |
- Read the protocol the table names, in full, before editing anything.
- Whatever the protocol, you MUST run the reachability checker before calling
the change done — it is the only guard for this defect class:
node scripts/check-mobile-imports.mjs . # identical, the way the build invokes it: npm run lint:mobilescripts/check-mobile-imports.mjsin the repo IS the checker — one implementation, edit it there. It was a Python script behind a launcher until 2026-08-15, when Obsidian's community scorecard failed build verification on a clean container that has Node but no Python. A build gate may only depend on what the build already needs.
What ships with it
10 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.
- protocols/confine-a-vault-path.md 3.8 KB
- protocols/diagnose-mobile-crash.md 3.8 KB
- protocols/import-without-crashing.md 3.4 KB
- protocols/self-refine.md 2.2 KB
- protocols/verify-mobile-safety.md 3.7 KB
- protocols/vet-a-dependency.md 3.4 KB
- references/init-order.md 3.5 KB
- references/pdfjs-in-electron.md 1.6 KB
- references/plugin-store-rules.md 3.4 KB
- refinement-log.md 5.2 KB
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.
- 5d ago First seen · 85 lines · 99 tokens per session scan A 140511b9c8cd
nexus-mobile-compat is a skill published in the GitHub repository ProfSynapse/nexus (154 stars, last pushed 3d ago), licensed MIT. It adds 99 tokens to every session and 1,174 once invoked, about $0.0005 per session on Opus 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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