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 agentmods add commands/affaan-m/ecc/build-fixgit 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/commands/affaan-m/ecc/build-fix)<a href="https://agentmods.dev/commands/affaan-m/ecc/build-fix"><img src="https://agentmods.dev/badge/commands/affaan-m/ecc/build-fix.svg" alt="Measured on agentmods" 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 | $0.00009 | $0.00405 |
| Opus 5 | $0.00005 | $0.00202 |
| Sonnet 5 | $0.00002 | $0.00081 |
| Haiku 4.5 | $0.00001 | $0.00040 |
Grade A, and why
build-fix 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 yesterday.
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.
Copies of this mod
8 near-identical copies found in the catalogue:
- build-fix — 98% identical, 2 lines differ
- build-fix — 98% identical, 2 lines differ
- build-fix — 95% identical, 2 lines differ
- build-fix — 86% identical, 24 lines differ
- build-fix — 86% identical, 24 lines differ
- build-fix — 86% identical, 24 lines differ
- build-fix — 86% identical, 24 lines differ
- build-fix — 86% identical, 24 lines differ
What it actually says
Build Fix Command
Fix build and TypeScript errors with minimal changes: $ARGUMENTS
Your Task
- Run type check:
npx tsc --noEmit - Collect all errors
- Fix errors one by one with minimal changes
- Verify each fix doesn't introduce new errors
- Run final check to confirm all errors resolved
Approach
DO:
- PASS: Fix type errors with correct types
- PASS: Add missing imports
- PASS: Fix syntax errors
- PASS: Make minimal changes
- PASS: Preserve existing behavior
- PASS: Run
tsc --noEmitafter each change
DON'T:
- FAIL: Refactor code
- FAIL: Add new features
- FAIL: Change architecture
- FAIL: Use
anytype (unless absolutely necessary) - FAIL: Add
@ts-ignorecomments - FAIL: Change business logic
Common Error Fixes
| Error | Fix |
|---|---|
| Type 'X' is not assignable to type 'Y' | Add correct type annotation |
| Property 'X' does not exist | Add property to interface or fix property name |
| Cannot find module 'X' | Install package or fix import path |
| Argument of type 'X' is not assignable | Cast or fix function signature |
| Object is possibly 'undefined' | Add null check or optional chaining |
Verification Steps
After fixes:
npx tsc --noEmit- should show 0 errorsnpm run build- should succeednpm test- tests should still pass
IMPORTANT: Focus on fixing errors only. No refactoring, no improvements, no architectural changes. Get the build green with minimal diff.
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.
- yesterday First seen · 57 lines · 9 tokens per session scan A 0e66ac1a68fd
build-fix is a command published in the GitHub repository affaan-m/ECC (248,541 stars, last pushed today), licensed MIT. It adds 9 tokens to every session and 405 once invoked, about $0.0000 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 2026-09-03.
Other commands, from other repositories
doc
Command "doc" from echoVic/blade-code, covering 目标文件, 文档规范, typescript/javascript, 类和接口 and 要求.
build-fix
以最小改动修复构建与 TypeScript 错误.
setup-code-intelligence
Check code-intelligence prerequisites (ripgrep + a language server) and print install hints.
type-crusade
Unleash parallel TypeScript Purist agents to purge every any, as cast, and type sin across the codebase. No type sin survives.
vite-react-setup
Setup project React SPA mới với Vite + TypeScript + Tailwind CSS v3 + Vitest. Dùng khi bắt đầu dự án frontend mới, cần scaffold đầy đủ config, brand KZTEK colors, và test setup sẵn sàng.
typescript
Apply TypeScript best practices and coding standards.