ECC is a toolkit that organizes and improves how coding agents work through skills, memory, security checks, research practices, and related extensions. It is for developers using agents such as Claude Code, Codex, OpenCode, and Cursor.
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 affaan-m/ECC --skill unified-memorygit clone --depth 1 https://github.com/affaan-m/ECCWrote 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/affaan-m/ecc/unified-memory)<a href="https://agentmods.dev/skills/affaan-m/ecc/unified-memory"><img src="https://agentmods.dev/badge/skills/affaan-m/ecc/unified-memory/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/affaan-m/ecc/unified-memory"><img src="https://agentmods.dev/badge/skills/affaan-m/ecc/unified-memory.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket pass
- Snyk pass
- NVIDIA SkillSpector pass
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 | $0.00060 | $0.01693 |
| Opus 5.5 | $0.00024 | $0.00677 |
| Sonnet 5.5 | $0.00012 | $0.00339 |
| Haiku 4.5 | $0.00006 | $0.00169 |
Grade A, and why
unified-memory 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 — 199 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Unified Memory
Use the ECC Memory Vault as the common context layer between harnesses. The
vault stores portable ecc.memory.v1 Markdown documents rather than
harness-specific transcripts or inboxes.
Runtime Prerequisite
This skill is guidance, not the Memory Vault executable. Skill-only, minimal,
manual, and Claude plugin installs do not create the required commands on
PATH. Install the ecc-universal npm runtime separately before using the CLI
or MCP examples:
npm install -g ecc-universal
ecc memory --help
command -v ecc-memory-mcp
A repository checkout may instead run the CLI as
node scripts/ecc.js memory ..., but MCP configurations that name
ecc-memory-mcp still require that binary on PATH.
When To Use
- Save durable context that another agent or later session will need.
- Hand work from Claude to Codex, Hermes to Claude, or any other harness pair.
- Resume a task and search for prior decisions, facts, lessons, or handoffs.
- Diagnose malformed memories, broken links, duplicate IDs, or skipped symbolic links.
Do not use the vault as a task tracker, secret store, policy engine, or substitute for governed project documentation.
Vault Scopes
| Scope | Location | Use |
|---|---|---|
project |
<repo>/.ecc/memory/project/ |
Repo-local context protected by a fail-closed .gitignore |
team |
<repo>/.ecc/memory/team/ |
Context intended for human review and version-controlled sharing |
user |
~/.ecc/memory/ |
Operator context that follows the user across repositories |
All participating harnesses must use the same repository working directory or
the same ECC_MEMORY_PROJECT_ROOT and ECC_MEMORY_USER_ROOT overrides.
Normal search recall covers active project and team memories. A direct ID
read may inspect a non-active entry. Request user
explicitly with --scope user; it is never included implicitly. Project-scope
initialization and writes fail closed if the vault's protective .gitignore
exists with unexpected content.
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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 Changed · +1 lines a605fe83aef5
- 1mo ago Changed · +29 lines 0f721834d22a
- 1mo ago First seen · 169 lines · 60 tokens per session scan A 86b4923b1a41
unified-memory is a skill published in the GitHub repository affaan-m/ECC (287,323 stars, last pushed 3d ago), licensed MIT. It adds 60 tokens to every session and 1,693 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 2026-08-30.
Other skills, from other repositories
honcho
Configure and troubleshoot Honcho memory for Hermes.
pinecone-research
Agent RAG and long-term memory with Pinecone.
llm-wiki
Karpathy's LLM Wiki: build/query interlinked markdown KB.
qmd
Hybrid local search over notes, docs, and transcripts.
hermes-agent
Use, configure, theme, extend, and orchestrate Hermes Agent.
caveman-compress
Compress a memory file such as CLAUDE.md or a todo list into caveman format to save input tokens, keeping a readable backup. Sends the file's text to the configured model provider. Trigger: /caveman-compress.