Getting it into your agent
It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.
git clone --depth 1 https://github.com/nklofy/code-agent-skillsnpx agentmods add skills/nklofy/code-agent-skills/ecc-guideWrote 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/nklofy/code-agent-skills/ecc-guide)<a href="https://agentmods.dev/skills/nklofy/code-agent-skills/ecc-guide"><img src="https://agentmods.dev/badge/skills/nklofy/code-agent-skills/ecc-guide/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/nklofy/code-agent-skills/ecc-guide"><img src="https://agentmods.dev/badge/skills/nklofy/code-agent-skills/ecc-guide.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 | $0.00034 | $0.01283 |
| Opus 5 | $0.00017 | $0.00642 |
| Sonnet 5 | $0.00007 | $0.00257 |
| Haiku 4.5 | $0.00003 | $0.00128 |
Grade A, and why
ecc-guide 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 6d 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.
This is a copy
91% identical to ecc-guide — 28 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 191 lines — stays where its author put it; the contents beside it link to each section on GitHub.
ECC Guide
Use this skill when a user needs help understanding, navigating, installing, or choosing parts of Everything Claude Code.
When To Use
Use this skill when the user:
- asks what ECC includes
- wants help finding a skill, command, agent, hook, rule, or install profile
- is new to the repository and needs a guided path
- asks "how do I do X with ECC?"
- asks which ECC components fit a project
- needs a lightweight explanation of how commands, skills, agents, hooks, and rules relate
- is confused by install paths, duplicate installs, reset/uninstall, or selective install options
Core Principle
Answer from current files, not memory. ECC changes quickly, so hard-coded catalog counts, feature lists, and install instructions go stale.
When the ECC repository is available, inspect the relevant files before giving a concrete answer:
node scripts/ci/catalog.js --json
find skills -maxdepth 2 -name SKILL.md | sort
find commands -maxdepth 1 -name '*.md' | sort
find agents -maxdepth 1 -name '*.md' | sort
node scripts/install-plan.js --list-profiles
node scripts/install-plan.js --list-components --json
Use the smallest set of reads needed for the user's question.
Repository Map
README.md: install paths, uninstall/reset guidance, public positioning, FAQsAGENTS.md: contributor guidance and project structureagent.yaml: exported gitagent surface and command listcommands/: maintained slash-command compatibility shimsskills/*/SKILL.md: reusable workflows and domain playbooksagents/*.md: delegated subagent role promptsrules/: language and harness ruleshooks/README.md,hooks/hooks.json,scripts/hooks/: hook behavior and safety gatesmanifests/install-*.json: selective install modules, components, profiles, and target supportdocs/: harness guides, architecture notes, translated docs, release docs
Response Style
Lead with the answer, then give the next action. Most users do not need a full catalog dump.
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.
- 6d ago First seen · 191 lines · 34 tokens per session scan A b6e30828406e
ecc-guide is a skill published in the GitHub repository nklofy/code-agent-skills (18 stars, last pushed 2mo ago), licensed Apache-2.0. It adds 34 tokens to every session and 1,283 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 91% identical to ecc-guide, differing in 28 lines, and is treated as a copy.
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