What is self-media-composer?

A tool for creating and editing social-media posts, image cards, and articles for platforms such as Rednote, Instagram, and WeChat Official Accounts.

Use it to create posts, multi-language content, social cards, or WeChat articles, and to extend existing self-media projects.

It helps organize the work of preparing content for platforms that use different post and card formats.

self-media-composer — Skill for Claude Code and Codex by dtyq/magic

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.

Any agent

npx skills add dtyq/magic --skill self-media-composer

Clone the repo

git clone --depth 1 https://github.com/dtyq/magic

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/dtyq/magic/self-media-composer/github.svg)](https://agentmods.dev/skills/dtyq/magic/self-media-composer)

Your own site

<a href="https://agentmods.dev/skills/dtyq/magic/self-media-composer"><img src="https://agentmods.dev/badge/skills/dtyq/magic/self-media-composer/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/dtyq/magic/self-media-composer"><img src="https://agentmods.dev/badge/skills/dtyq/magic/self-media-composer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 138 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 11,485 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. Third-party audits

NVIDIA SkillSpector warn 7 Sept 2026

SkillSpector: 1 finding, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

medium Excessive Agency · line 161
Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.

Fix: Add human-in-the-loop confirmation for destructive, irreversible, or high-impact operations. Never auto-execute commands that modify files, send data, or alter system state.

How audits are shown

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.

Model	Per session	Once invoked
Fable 5.1	$0.00138	$0.11485
Opus 5.5	$0.00055	$0.04594
Sonnet 5.5	$0.00028	$0.02297
Haiku 4.5	$0.00014	$0.01149

Measured today against content hash fef68877a53f, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

self-media-composer 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 today.

The scan reads SKILL.md. This mod also ships 18 executable files (presets/instagram/ins-creator-studio/ins-creator-studio.js, presets/instagram/ins-dark/ins-dark.js, presets/instagram/ins-film-frame/ins-film-frame.js, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

backend/super-magic/agents/skills/self-media-composer/SKILL.md · 709 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

Files

What ships with it

60 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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.

today Changed fef68877a53f
1mo ago First seen · 709 lines · 138 tokens per session scan A 7d5aa1051d02

Subscribe to this mod's changes

self-media-composer is a skill published in the GitHub repository dtyq/magic (5,056 stars, last pushed today), with no licence file. It adds 138 tokens to every session and 11,485 once invoked, about $0.0006 per session on Opus 5.5. 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 2026-08-30.

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