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 OrcaQubits/agentic-commerce-skills-plugins --skill bc-app-devgit clone --depth 1 https://github.com/OrcaQubits/agentic-commerce-skills-pluginsWrote 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/orcaqubits/agentic-commerce-skills-plugins/bc-app-dev)<a href="https://agentmods.dev/skills/orcaqubits/agentic-commerce-skills-plugins/bc-app-dev"><img src="https://agentmods.dev/badge/skills/orcaqubits/agentic-commerce-skills-plugins/bc-app-dev/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/orcaqubits/agentic-commerce-skills-plugins/bc-app-dev"><img src="https://agentmods.dev/badge/skills/orcaqubits/agentic-commerce-skills-plugins/bc-app-dev.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 | $0.00044 | $0.01160 |
| Opus 5.5 | $0.00018 | $0.00464 |
| Sonnet 5.5 | $0.00009 | $0.00232 |
| Haiku 4.5 | $0.00004 | $0.00116 |
Grade A, and why
bc-app-dev 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 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.
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 — 154 lines — stays where its author put it; the contents beside it link to each section on GitHub.
BigCommerce App Development
Before writing code
Fetch live docs:
- Fetch
https://docs.bigcommerce.com/developer/docs/integrations/apps/introductionfor the apps guide - Web-search
site:developer.bigcommerce.com apps guide authfor OAuth patterns - Web-search
bigcommerce single-click app tutorialfor step-by-step implementation
App Types
Single-Click Apps
Apps installed from the BigCommerce App Marketplace:
- User clicks "Install" in the marketplace or admin panel
- BigCommerce initiates OAuth flow with your server
- Your app receives a permanent API token for that store
- Load your app UI in an iframe within BigCommerce admin
Connector Apps
Simplified apps that don't embed UI in BigCommerce:
- OAuth install flow only — get an API token
- No admin panel iframe
- Typically background data sync services (ERP, shipping, marketing)
Scripts-Only Apps
Inject JavaScript into the storefront without a full app:
- Use the Script Manager API after OAuth install
- No admin panel UI
- For analytics, chat widgets, A/B testing, etc.
OAuth Flow
Installation Flow
- Merchant clicks "Install" — BigCommerce sends GET to your Auth Callback URL with
code,scope,context - Your server exchanges
codefor a permanentaccess_tokenvia POST tohttps://login.bigcommerce.com/oauth2/token - Store the
access_token,store_hash, andscopefor future API calls - Return HTML that BigCommerce renders in the admin iframe
Load Callback
When the merchant opens your app in BigCommerce admin:
- BigCommerce sends GET to your Load Callback URL with a signed JWT
- Verify JWT signature using your Client Secret
- Extract
store_hashanduserfrom the JWT payload - Return your app's UI HTML
Uninstall Callback
When the merchant uninstalls:
- BigCommerce sends GET to your Uninstall Callback URL with a signed JWT
- Clean up stored tokens and data for that store
Remove User Callback
When a specific user is removed from a multi-user store:
- Clean up user-specific data
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 · 154 lines · 44 tokens per session scan A 82e1cca9bf95
bc-app-dev is a skill published in the GitHub repository OrcaQubits/agentic-commerce-skills-plugins (40 stars, last pushed 1mo ago), licensed MIT. It adds 44 tokens to every session and 1,160 once invoked, about $0.0002 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 2026-09-15.
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