grafema: Skill for Claude Code

.claude/skills/elixir-escript-daemon-stdio-encoding/SKILL.md

elixir-escript-daemon-stdio-encoding is a skill for Claude Code from Disentinel/grafema. It costs 230 tokens per session (2,345 once invoked), scanned A, original, no licence file.

A troubleshooting guide for Elixir command-line daemons that communicate through standard input and output using framed messages. It addresses crashes caused by non-ASCII text such as emoji, Cyrillic, or Japanese characters.

In plain words
What is it for?
Use it when an Elixir escript daemon crashes while reading some files, especially files containing non-ASCII bytes, and reports a `{:notranslation, :unicode, :latin1}` error.
Why use it?
It helps find the cause of intermittent Unicode encoding failures that affect only certain input files. This avoids treating the daemon's generic protocol error as an unrelated problem.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

This is Disentinel/grafema's own configuration. It tells Claude Code how to work on grafema 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 grafema configures →

Reuse

Borrowing it

Nothing to install: this file belongs to Disentinel/grafema. 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/Disentinel/grafema/main/.claude/skills/elixir-escript-daemon-stdio-encoding/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/Disentinel/grafema

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.

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README.md
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Your own site
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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.

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Your own site · 80×15
<a href="https://agentmods.dev/skills/disentinel/grafema/elixir-escript-daemon-stdio-encoding"><img src="https://agentmods.dev/badge/skills/disentinel/grafema/elixir-escript-daemon-stdio-encoding.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 230 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,345 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown 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 $0.00230 $0.02345
Opus 5.5 $0.00092 $0.00938
Sonnet 5.5 $0.00046 $0.00469
Haiku 4.5 $0.00023 $0.00234

Measured 1mo ago against content hash c58aa73b259f, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

elixir-escript-daemon-stdio-encoding 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.

Runs shell commandslowCapability

Expected in a hook, worth knowing in a rule or an instructions file.

proc = subprocess.Popen(["./daemon", "--daemon"],
.claude/skills/elixir-escript-daemon-stdio-encoding/SKILL.md · 202 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

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. 1mo ago First seen · 202 lines · 230 tokens per session scan A c58aa73b259f

Subscribe to this mod's changes

elixir-escript-daemon-stdio-encoding is a skill published in the GitHub repository Disentinel/grafema (35 stars, last pushed 2mo ago), with no licence file. It adds 230 tokens to every session and 2,345 once invoked, about $0.0009 per session on Opus 5.5. A static security scan graded it A with 1 finding (runs shell commands). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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