symbolic-check

symbolic-check is a command for Claude Code from flonat/flonat-research. It costs 57 tokens per session (110 once invoked), scanned A, original, MIT.

A tool that uses SymPy to check algebraic identities, derivatives, limits, comparative-static signs, and closed-form formulas symbolically. SymPy is a Python library for exact mathematics.

In plain words
What is it for?
Use it to prove or refute a self-written symbolic calculation. It is not intended for parameter sweeps or full formal theorem proving.
Why use it?
It can settle whether a mathematical claim is true or false through exact manipulation instead of relying only on numerical examples.

Command for Claude Code

Written for Claude Code: installed under .claude/. Also seen: reads .claude/ paths; $skill-name invocation.

Good fit Use it to prove or refute a self-written symbolic calculation. It is not intended for parameter sweeps or full formal theorem proving.

Compare 6 commands from other repositories ↓
Install with agentmods
npx agentmods add commands/flonat/flonat-research/symbolic-check
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.

Clone the repo
git clone --depth 1 https://github.com/flonat/flonat-research

Made for: Claude Code.

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.

agentmods badge for symbolic-check

README.md
[![agentmods](https://agentmods.dev/badge/commands/flonat/flonat-research/symbolic-check/github.svg)](https://agentmods.dev/commands/flonat/flonat-research/symbolic-check)
Your own site
<a href="https://agentmods.dev/commands/flonat/flonat-research/symbolic-check"><img src="https://agentmods.dev/badge/commands/flonat/flonat-research/symbolic-check/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.

agentmods 80×15 button for symbolic-check

Your own site · 80×15
<a href="https://agentmods.dev/commands/flonat/flonat-research/symbolic-check"><img src="https://agentmods.dev/badge/commands/flonat/flonat-research/symbolic-check.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 57 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 110 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 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 $0.00057 $0.00110
Opus 5 $0.00028 $0.00055
Sonnet 5 $0.00011 $0.00022
Haiku 4.5 $0.00006 $0.00011

Measured 7d ago against content hash 2c80f3acca19, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

symbolic-check 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 7d 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.

.claude/commands/symbolic-check.md · 11 lines

What it actually says

Shared skill adapter

Read and follow ~/.claude/shared-skills/symbolic-check/SKILL.md. Resolve bundled resources relative to ~/.claude/shared-skills/symbolic-check/.

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. 7d ago First seen · 11 lines · 57 tokens per session scan A 2c80f3acca19

Subscribe to this mod's changes

symbolic-check is a command published in the GitHub repository flonat/flonat-research (132 stars, last pushed 15d ago), licensed MIT. It adds 57 tokens to every session and 110 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 2026-09-03.