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 Proxy2021/Enso --skill cortexgit clone --depth 1 https://github.com/Proxy2021/EnsoWrote 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/proxy2021/enso/cortex)<a href="https://agentmods.dev/skills/proxy2021/enso/cortex"><img src="https://agentmods.dev/badge/skills/proxy2021/enso/cortex/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/proxy2021/enso/cortex"><img src="https://agentmods.dev/badge/skills/proxy2021/enso/cortex.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 | $0.00028 | $0.00411 |
| Opus 5.5 | $0.00011 | $0.00164 |
| Sonnet 5.5 | $0.00006 | $0.00082 |
| Haiku 4.5 | $0.00003 | $0.00041 |
Grade A, and why
cortex 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.
What it actually says
Cortex
Knowledge Cortex: explore, discover, and grow your AI-maintained knowledge base with graph visualization, web discovery, and daily digest
Available Tools
enso_cortex_explore (primary)
Get Cortex dashboard: page stats by category, recent updates, top entities by connectivity, knowledge gaps, and recent operations log
enso_cortex_read
Read a specific Cortex page with backlinks, outgoing links, related pages, and tags
Parameters:
path(string): Page path (e.g. 'entities/react.md')
enso_cortex_search
Search Cortex pages by keyword with optional category and tag filters
Parameters:
query(string): Search querycategory(string): Filter by category: entities, concepts, sources, synthesistag(string): Filter by tag
enso_cortex_graph
Build knowledge graph with nodes (pages) and edges (wiki links) for visualization
enso_cortex_discover
Search the web for latest content related to a Cortex topic, with AI-suggested branches to explore
Parameters:
topic(string): Topic to discover new content forpath(string): Optional: wiki page path to read context from
enso_cortex_ingest
Ingest new knowledge into the Cortex from text, URL, or topic
Parameters:
text(string): Text content to ingesturl(string): Source URL for referencetopic(string): Topic label
enso_cortex_digest
Generate an AI summary of the Cortex: strengths, knowledge gaps, and suggested next explorations
enso_cortex_daily_discovery
Daily scheduled task: search web for latest developments on top Cortex topics, ingest findings, and email a curated digest
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 · 60 lines · 28 tokens per session scan A 00a0b38e4292
cortex is a skill published in the GitHub repository Proxy2021/Enso (6 stars, last pushed 5mo ago), licensed MIT. It adds 28 tokens to every session and 411 once invoked, about $0.0001 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 2026-08-31.
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Record final outcomes to history.md, not intermediate requests or reversed decisions.