What is clojure-repl?

A guide for using a Clojure REPL, an interactive tool that evaluates Clojure code while the program is running, through delimiter-safe helper tools.

Use it to find a running REPL, evaluate Clojure expressions, repair unbalanced delimiters, and format generated Clojure code.

It helps developers evaluate and repair Clojure code without relying on error-prone manual parenthesis fixes or raw shell commands.

clojure-repl — Skill for Claude Code and Codex by zcaudate-xyz: A guide for using a Clojure REPL, an interactive…

Install

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.

agentmods

npx agentmods add skills/zcaudate-xyz/foundation-base/clojure-repl

Any agent

npx skills add zcaudate-xyz/foundation-base --skill clojure-repl

Clone the repo

git clone --depth 1 https://github.com/zcaudate-xyz/foundation-base

Made for: Claude Code, Codex.

Wrote 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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/zcaudate-xyz/foundation-base/clojure-repl.svg)](https://agentmods.dev/skills/zcaudate-xyz/foundation-base/clojure-repl)

Your own site

<a href="https://agentmods.dev/skills/zcaudate-xyz/foundation-base/clojure-repl"><img src="https://agentmods.dev/badge/skills/zcaudate-xyz/foundation-base/clojure-repl.svg" alt="Measured on agentmods" height="20"></a>

Per session 53 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 823 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. Scan, not verified.

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.

Model	Per session	Once invoked
Fable 5	$0.00053	$0.00823
Opus 5	$0.00026	$0.00411
Sonnet 5	$0.00011	$0.00165
Haiku 4.5	$0.00005	$0.00082

Measured 2d ago against content hash 708d7ce91455, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

clojure-repl 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 2d 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.

.kimi/skills/clojure-repl/SKILL.md · 90 lines

How it starts

The opening of the file, as written. The whole thing — 90 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Clojure REPL (clojure-mcp-light)

This skill wires Bruce Hauman's clojure-mcp-light toolchain into Kimi Code CLI for this project. It provides delimiter-safe Clojure evaluation and repair via MCP tools.

Available MCP tools

Tool names are prefixed by Kimi as mcp__clojure-light__<tool>:

clojure_eval(code, port?) — evaluate a Clojure form against a running nREPL server.
clojure_repair(code) — repair unbalanced delimiters and apply cljfmt formatting.
list_nrepl_ports() — discover running nREPL servers in the current directory.

Setup (one-time)

The following are already installed for this project:

parinfer-rust (delimiter repair backend)
clj-nrepl-eval (nREPL evaluator)
clj-paren-repair (delimiter repair + formatting)
.kimi/mcp-clojure-light/server.py (MCP wrapper, Python venv)
~/.kimi/mcp.json is registered with the clojure-light MCP server

Verify the server is reachable:

kimi mcp test clojure-light

If you need to point Kimi at a different config file for testing:

kimi --mcp-config-file /path/to/mcp.json mcp test clojure-light

Core workflow

Before evaluating, check for a running REPL:
- Use list_nrepl_ports.
- Or check .nrepl-port in the project root.
If no REPL is running, start one:
```
lein repl :headless
```
Wait for .nrepl-port to appear.
Evaluate small forms with clojure_eval.
- Prefer returning data (maps, vectors, strings) over printing.
- require or ns load the namespace first if needed.
Repair before writing — when generating multi-line Clojure code, pass it through clojure_repair first and only write the repaired output.

Validate with the narrowest test command:

./lein test :only <namespace>
./lein test :with <subsystem>

Namespace discipline

Evaluate the ns form or require the namespace before calling vars from it.
Use fully-qualified vars when moving between namespaces would add confusion.
Prefer user for one-off setup and small probes.
Avoid mutating production namespaces during exploration; use scratch namespaces or small pure probes.

Read the full file on GitHub · 90 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.

2d ago First seen · 90 lines · 53 tokens per session scan A 708d7ce91455

Subscribe to this mod's changes

clojure-repl is a skill published in the GitHub repository zcaudate-xyz/foundation-base (42 stars, last pushed 13d ago), licensed MIT. It adds 53 tokens to every session and 823 once invoked, about $0.0003 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 2026-09-02.

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