Getting it into your agent
This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.
/plugin marketplace add indranilbanerjee/digital-marketing-pro/plugin install digital-marketing-proWrote 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/indranilbanerjee/digital-marketing-pro/backlink-gap)<a href="https://agentmods.dev/skills/indranilbanerjee/digital-marketing-pro/backlink-gap"><img src="https://agentmods.dev/badge/skills/indranilbanerjee/digital-marketing-pro/backlink-gap/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/indranilbanerjee/digital-marketing-pro/backlink-gap"><img src="https://agentmods.dev/badge/skills/indranilbanerjee/digital-marketing-pro/backlink-gap.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 | $0.00178 | $0.02630 |
| Opus 5 | $0.00089 | $0.01315 |
| Sonnet 5 | $0.00036 | $0.00526 |
| Haiku 4.5 | $0.00018 | $0.00263 |
Grade A, and why
backlink-gap 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 12d 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 — 150 lines — stays where its author put it; the contents beside it link to each section on GitHub.
/digital-marketing-pro:backlink-gap
Purpose
Identify the highest-leverage backlink prospects — domains that link to multiple competitors but not to you — and rank them by an opinionated priority score that combines authority, link-overlap signal, downstream traffic, and topical relevance. Produces a numbered output bundle ready for outreach handoff.
Context efficiency
Heavy skill. Grep before Read any referenced file, then Read only matched ranges with offset + limit. List ${CLAUDE_PLUGIN_DATA}/<brand>/ before opening files. On re-invocation mid-session, skip files already in context.
When to Use
- Quarterly backlink audit — "where did our competitors grow links this quarter and we didn't?"
- Pre-launch link-building plan for a new product or content hub
- Digital PR qualification — separating "would-link-to-anyone" prospects from "high-confidence-will-link-to-our-space"
- Competitive recovery — a competitor displaced you and you want to know which links moved
- Onboarding a new client and need a "first 50 link targets" backlog
Don't use when you just need backlink quantity numbers (use the brand's connected backlink MCP directly) or when you need anchor-text analysis of your own profile (that's a separate audit — covered in seo-audit).
Brand context (auto-applied)
- Read
~/.claude-marketing/brands/_active-brand.jsonfor the active slug, then load~/.claude-marketing/brands/{slug}/profile.json - If no brand exists: ask "Set up a brand first (/digital-marketing-pro:brand-setup)?" — or proceed with defaults
- Apply
skills/context-engine/industry-profiles.mdfor industry-specific link-quality thresholds (YMYL industries should set higher--min-dr) - Apply
skills/context-engine/compliance-rules.mdto filter out blocked publishers (e.g., PBN-style or paid-link networks the brand has explicitly banned)
Inputs
| Input | Source | Required? |
|---|---|---|
| Our backlinks CSV | Export from connected backlink MCP (Ahrefs / Semrush / SE Ranking / Moz) for the brand's primary domain | yes |
| Competitor backlinks CSVs (2+) | Same exporter, one per competitor (2 minimum for the link-overlap signal; 3-5 is the sweet spot) | yes |
| Min DR / DA filter | CLI flag, brand-profile default, or industry standard | optional |
| Top-N count | How many prospects to surface | optional |
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.
- 12d ago First seen · 150 lines · 178 tokens per session scan A 18a8c0e11101
backlink-gap is a skill published in the GitHub repository indranilbanerjee/digital-marketing-pro (812 stars, last pushed 5d ago), licensed MIT. It adds 178 tokens to every session and 2,630 once invoked, about $0.0009 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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