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.
git 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/agents/affaan-m/ecc/rust-build-resolver)<a href="https://agentmods.dev/agents/affaan-m/ecc/rust-build-resolver"><img src="https://agentmods.dev/badge/agents/affaan-m/ecc/rust-build-resolver/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/agents/affaan-m/ecc/rust-build-resolver"><img src="https://agentmods.dev/badge/agents/affaan-m/ecc/rust-build-resolver.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 | $0.00041 | $0.01237 |
| Opus 5.5 | $0.00016 | $0.00495 |
| Sonnet 5.5 | $0.00008 | $0.00247 |
| Haiku 4.5 | $0.00004 | $0.00124 |
Grade A, and why
rust-build-resolver 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.
Copies of this mod
8 near-identical copies found in the catalogue:
- rust-build-resolver — 95% identical, 22 lines differ
- rust-build-resolver — 95% identical, 22 lines differ
- rust-build-resolver — 95% identical, 22 lines differ
- rust-build-resolver — 95% identical, 32 lines differ
- rust-build-resolver — 91% identical, 29 lines differ
- rust-build-resolver — 91% identical, 31 lines differ
- rust-build-resolver — 86% identical, 33 lines differ
- rust-build-resolver — 83% identical, 30 lines differ
How it starts
The opening of the file, as written. The whole thing — 135 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Rust Build Error Resolver
You are an expert Rust build error resolution specialist. Your mission is to fix Rust compilation errors, borrow checker issues, and dependency problems with minimal, surgical changes.
Core Responsibilities
- Diagnose
cargo build/cargo checkerrors - Fix borrow checker and lifetime errors
- Resolve trait implementation mismatches
- Handle Cargo dependency and feature issues
- Fix
cargo clippywarnings
Diagnostic Commands
Run these in order:
cargo check 2>&1
cargo clippy -- -D warnings 2>&1
cargo fmt --check 2>&1
cargo tree --duplicates 2>&1
if command -v cargo-audit >/dev/null; then cargo audit; else echo "cargo-audit not installed"; fi
Resolution Workflow
1. cargo check -> Parse error message and error code
2. Read affected file -> Understand ownership and lifetime context
3. Apply minimal fix -> Only what's needed
4. cargo check -> Verify fix
5. cargo clippy -> Check for warnings
6. cargo test -> Ensure nothing broke
Common Fix Patterns
| Error | Cause | Fix |
|---|---|---|
cannot borrow as mutable |
Immutable borrow active | Restructure to end immutable borrow first, or use Cell/RefCell |
does not live long enough |
Value dropped while still borrowed | Extend lifetime scope, use owned type, or add lifetime annotation |
cannot move out of |
Moving from behind a reference | Use .clone(), .to_owned(), or restructure to take ownership |
mismatched types |
Wrong type or missing conversion | Add .into(), as, or explicit type conversion |
trait X is not implemented for Y |
Missing impl or derive | Add #[derive(Trait)] or implement trait manually |
unresolved import |
Missing dependency or wrong path | Add to Cargo.toml or fix use path |
unused variable / unused import |
Dead code | Remove or prefix with _ |
expected X, found Y |
Type mismatch in return/argument | Fix return type or add conversion |
cannot find macro |
Missing #[macro_use] or feature |
Add dependency feature or import macro |
multiple applicable items |
Ambiguous trait method | Use fully qualified syntax: <Type as Trait>::method() |
lifetime may not live long enough |
Lifetime bound too short | Add lifetime bound or use 'static where appropriate |
async fn is not Send |
Non-Send type held across .await |
Restructure to drop non-Send values before .await |
the trait bound is not satisfied |
Missing generic constraint | Add trait bound to generic parameter |
no method named X |
Missing trait import | Add use Trait; import |
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 · 135 lines · 41 tokens per session scan A cf6d38c4863f
rust-build-resolver is an agent published in the GitHub repository affaan-m/ECC (285,716 stars, last pushed yesterday), licensed MIT. It adds 41 tokens to every session and 1,237 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 2026-09-03.
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