Getting it into your agent
This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.
/plugin marketplace add open-horizon-labs/repo-native-alignment/plugin install rna-mcpWrote 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/open-horizon-labs/repo-native-alignment/setup)<a href="https://agentmods.dev/skills/open-horizon-labs/repo-native-alignment/setup"><img src="https://agentmods.dev/badge/skills/open-horizon-labs/repo-native-alignment/setup/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/open-horizon-labs/repo-native-alignment/setup"><img src="https://agentmods.dev/badge/skills/open-horizon-labs/repo-native-alignment/setup.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 | $0.00042 | $0.02563 |
| Opus 5.5 | $0.00017 | $0.01025 |
| Sonnet 5.5 | $0.00008 | $0.00513 |
| Haiku 4.5 | $0.00004 | $0.00256 |
Grade A, and why
setup scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
curl -L https://github.com/open-horizon-labs/repo-native-alignment/releases/latest/download/repo-native-alignment-darwin-arm64-fast.tar.gz | tar xz -C ~/.cargo/bin How it starts
The opening of the file, as written. The whole thing — 222 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Setup Repo-Native Alignment MCP
Install the RNA MCP server for aim-conditioned code intelligence.
Execute these steps in order. Do not stop between steps or ask for confirmation -- run the full sequence automatically.
Step 1: Check if already installed
which repo-native-alignment 2>/dev/null
If found, skip to Step 3. If not found, proceed to Step 2.
Step 2: Download the binary
Detect the platform and chip, then download to ~/.cargo/bin/ (already on PATH for Rust users):
OS=$(uname -s)
ARCH=$(uname -m)
CHIP=$(sysctl -n machdep.cpu.brand_string 2>/dev/null || echo "")
mkdir -p ~/.cargo/bin
If macOS ARM M2+ (Darwin + arm64 + brand_string contains "M2", "M3", or "M4"):
curl -L https://github.com/open-horizon-labs/repo-native-alignment/releases/latest/download/repo-native-alignment-darwin-arm64-fast.tar.gz | tar xz -C ~/.cargo/bin
If macOS ARM (M1) (Darwin + arm64):
curl -L https://github.com/open-horizon-labs/repo-native-alignment/releases/latest/download/repo-native-alignment-darwin-arm64.tar.gz | tar xz -C ~/.cargo/bin
If Linux x86_64 (Linux + x86_64):
curl -L https://github.com/open-horizon-labs/repo-native-alignment/releases/latest/download/repo-native-alignment-linux-x86_64.tar.gz | tar xz -C ~/.cargo/bin
If none of the above match: Tell the user their platform is not yet supported by the published release artifacts. They may build from source for development/testing, but source builds are not a substitute for release verification from successful CI/release artifacts:
cargo install --locked --git https://github.com/open-horizon-labs/repo-native-alignment
If ~/.cargo/bin is not on PATH (no Rust toolchain installed), tell the user to add it: export PATH="$HOME/.cargo/bin:$PATH"
Release artifacts are intentionally built without local embedding/reranking support. They support extraction, graph traversal, lexical search, LSP call/reference enrichment, repo maps, and MCP delivery. Semantic search and cross-encoder reranking require a development/source build with embedding features (Apple Silicon Metal: cargo install --locked --path . --features metal from a checked-out repo); source builds are not a substitute for release verification from successful CI/release artifacts.
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 · 222 lines · 42 tokens per session scan A 4908153801da
setup is a skill published in the GitHub repository open-horizon-labs/repo-native-alignment (6 stars, last pushed 1mo ago), licensed MIT. It adds 42 tokens to every session and 2,563 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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