conch: Skill for Cursor

.cursor/skills/r-shell-ssh/SKILL.md

r-shell-ssh is a skill for Cursor from MageGojo/conch. It costs 115 tokens per session (2,582 once invoked), scanned D, original, MIT.

A workflow for connecting to remote servers through the r-shell command-line tool, using saved connections and persistent sessions. It replaces direct SSH, SCP, and SFTP commands for this project.

In plain words
What is it for?
Use it to connect to a server, run commands, open a shell, read or edit remote files, transfer files, and check server statistics.
Why use it?
It keeps remote-server work in one repeatable workflow and avoids repeatedly creating raw remote-login commands.

Skill for Cursor

Written for Cursor: installed under .cursor/.

This is MageGojo/conch's own configuration. It tells Cursor how to work on conch itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything conch configures →

Reuse

Borrowing it

Nothing to install: this file belongs to MageGojo/conch. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/MageGojo/conch/main/.cursor/skills/r-shell-ssh/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/MageGojo/conch

Made for: Cursor.

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README.md
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Per session 115 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,582 The whole file, excluding the scripts and references it only reads on demand.
Security scan D 3 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00115 $0.02582
Opus 5.5 $0.00046 $0.01033
Sonnet 5.5 $0.00023 $0.00516
Haiku 4.5 $0.00012 $0.00258

Measured 2mo ago against content hash 0ca87b4230b9, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade D, and why

r-shell-ssh scanned grade D with 3 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 2mo 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.

Asks the agent to reveal its instructionsmediumSystem prompt leakage

Directions to print, repeat or translate the system prompt extract configuration the operator did not intend to expose.

no-echo prompt; `connections list` only exposes `has_password` booleans.

Reaches for credential fileshighPrivilege escalation

SSH keys, cloud credentials, git-credentials, .npmrc, /etc/shadow: reading these is how a config file becomes a credential leak.

--auth publickey --key-path ~/.ssh/id_ed25519

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

if curl -s -o /dev/null -w '%{http_code}' http://127.0.0.1:9123/mcp | grep -qE '^[0-9]'; then
.cursor/skills/r-shell-ssh/SKILL.md · 231 lines

How it starts

The opening of the file, as written. The whole thing — 231 lines — stays where its author put it; the contents beside it link to each section on GitHub.

R-Shell SSH Workflow

Use the local r-shell CLI for every remote-server task in this project. Save each server once as a named connection, then always reference it by -c <id|name>. This reuses one clean connect-do-disconnect path with stored credentials, instead of spawning many raw ssh user@ip processes that look like a brute-force/attack to the remote host.

Core Rule

  • DO NOT run raw ssh, scp, or sftp to reach a server in this project.
  • DO use r-shell subcommands with a saved connection (-c <id|name>).
  • On every use of this skill, first run Step 0 (ensure installed) and Step 1 (ensure MCP running), then do the task.

Step 0 — Ensure r-shell is installed (auto-install if missing)

Detect the binary; if absent, build/install it from this repo automatically. Do NOT ask the user — just install it.

# 1. Already installed and on PATH?
if command -v r-shell >/dev/null 2>&1; then
  echo "r-shell: $(command -v r-shell)"
else
  echo "r-shell not found — installing from source"
fi

If missing, install (prefer cargo install, which puts it on PATH via ~/.cargo/bin). Run from the repo root:

# Preferred: installs `r-shell` to ~/.cargo/bin (make sure that's on PATH)
cargo install --path cli

# Fallback if `cargo install` is unavailable/undesired: build in-tree.
# The binary lands at cli/target/release/r-shell
cargo build --release --manifest-path cli/Cargo.toml
  • If cargo itself is missing, stop and tell the user to install Rust from https://rustup.rs (do not attempt a silent toolchain install).
  • After a fallback build, invoke the binary by its full path cli/target/release/r-shell (or via cargo run --manifest-path cli/Cargo.toml --).

For brevity the rest of this skill writes r-shell <command>; substitute the built path or the Cargo form when r-shell is not yet on PATH.

Step 1 — Ensure the MCP server is running (auto-start)

The skill should make the local MCP server available without manual steps. It binds to http://127.0.0.1:9123/mcp (localhost only).

Read the full file on GitHub · 231 lines

Changes

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.

  1. 2mo ago First seen · 231 lines · 115 tokens per session scan D 0ca87b4230b9

Subscribe to this mod's changes

r-shell-ssh is a skill published in the GitHub repository MageGojo/conch (4 stars, last pushed 2mo ago), licensed MIT. It adds 115 tokens to every session and 2,582 once invoked, about $0.0005 per session on Opus 5.5. A static security scan graded it D with 3 findings (asks the agent to reveal its instructions, reaches for credential files, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

Related

r-shell-ssh compared with skills from other repositories

r-shell-ssh next to 6 skills from other repositories
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