knowledge-base-injection

knowledge-base-injection is a skill for Claude Code, Codex from itallstartedwithaidea/claude-googleadsagent. It costs 39 tokens per session (2,462 once invoked), scanned A, original, no licence file.

A method for adding relevant subject knowledge to an agent's context while it works. It uses text matching and meaning-based scoring to decide what knowledge is relevant.

In plain words
What is it for?
Use it to inject domain expertise into an agent's working context when matching patterns or concepts are detected.
Why use it?
It reduces the need to include all domain information in every request and helps focus the agent on the knowledge needed at that moment.

Skill for Claude CodeCodex

Part of the googleadsagent plugin — 77 skills, 7 commands, 7 agents, 2 hooks, 2 MCP servers shipped together

Install

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.

agentmods
npx agentmods add skills/itallstartedwithaidea/claude-googleadsagent/knowledge-base-injection
Any agent
npx skills add itallstartedwithaidea/claude-googleadsagent --skill knowledge-base-injection
Clone the repo
git clone --depth 1 https://github.com/itallstartedwithaidea/claude-googleadsagent

Made for: Claude Code, Codex.

Or install googleadsagent, the plugin that ships this one along with the rest of its 77 skills, 7 commands, 7 agents, 2 hooks, 2 MCP servers.

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.

agentmods badge for knowledge-base-injection

README.md
[![agentmods](https://agentmods.dev/badge/skills/itallstartedwithaidea/claude-googleadsagent/knowledge-base-injection.svg)](https://agentmods.dev/skills/itallstartedwithaidea/claude-googleadsagent/knowledge-base-injection)
Your own site
<a href="https://agentmods.dev/skills/itallstartedwithaidea/claude-googleadsagent/knowledge-base-injection"><img src="https://agentmods.dev/badge/skills/itallstartedwithaidea/claude-googleadsagent/knowledge-base-injection.svg" alt="Measured on agentmods" height="20"></a>
Per session 39 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,462 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin unknown 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.

ModelPer sessionOnce invoked
Fable 5 $0.00039 $0.02462
Opus 5 $0.00019 $0.01231
Sonnet 5 $0.00008 $0.00492
Haiku 4.5 $0.00004 $0.00246

Measured 4d ago against content hash 3336943eb793, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

knowledge-base-injection 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 4d 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.

skills/knowledge-base-injection/SKILL.md · 218 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

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.

  1. 4d ago First seen · 218 lines · 39 tokens per session scan A 3336943eb793

Subscribe to this mod's changes

knowledge-base-injection is a skill published in the GitHub repository itallstartedwithaidea/claude-googleadsagent (2 stars, last pushed 1mo ago), with no licence file. It adds 39 tokens to every session and 2,462 once invoked, about $0.0002 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 2026-08-31.

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