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.
npx skills add ssmurfgg04-gif/context-m --skill chartsgit clone --depth 1 https://github.com/ssmurfgg04-gif/context-mWrote 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.
[](https://agentmods.dev/skills/ssmurfgg04-gif/context-m/charts)<a href="https://agentmods.dev/skills/ssmurfgg04-gif/context-m/charts"><img src="https://agentmods.dev/badge/skills/ssmurfgg04-gif/context-m/charts/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.
<a href="https://agentmods.dev/skills/ssmurfgg04-gif/context-m/charts"><img src="https://agentmods.dev/badge/skills/ssmurfgg04-gif/context-m/charts.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00323 | $0.05804 |
| Opus 5 | $0.00161 | $0.02902 |
| Sonnet 5 | $0.00065 | $0.01161 |
| Haiku 4.5 | $0.00032 | $0.00580 |
Grade A, and why
charts scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 12d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 428 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Beautiful Charts
Quick Setup
bash "$SKILL_DIR/setup.sh" # Interactive environment check + install
Make every chart and diagram look professionally designed, not AI-generated.
Architecture
| Module | File | When to Load |
|---|---|---|
| Routing + Core Rules | This file | Always read first |
| Framework Templates | references/ by framework |
After choosing framework, read the corresponding file |
Loading order: Read this file → choose framework → read template file → start coding.
Each template file contains its own framework-specific rules (spacing, connectors, color details). This file contains only routing decisions and universal rules that apply to ALL charts.
Part 1: Routing
⚠️ Format Constraint Rule (HIGHEST PRIORITY)
When the user specifies an output format/tool, you MUST comply. Never substitute.
| User Says | You Must Do | Forbidden |
|---|---|---|
| "use mermaid code" / "用Mermaid格式输出" / "转化为mermaid" / "mermaid流程" | ① Output Mermaid code block (mermaid ... ) ② Also provide a rendered image preview |
❌ Cannot only give image without code; ❌ Cannot screenshot raw code text as image |
| "use markdown code" | Output markdown-formatted hierarchy | ❌ Cannot switch to HTML/CSS |
| "via mermaid or markdown code" | Choose one of the two, output code text | ❌ Cannot switch to any non-specified format |
| "flowchart" / "mind map" (no format specified) | Free to choose the best approach | - |
| "use echarts/d3" | Must use the specified framework | ❌ Cannot switch |
🚫 FORBIDDEN: Mermaid Code Screenshot
NEVER take a screenshot of raw Mermaid source code and deliver it as the "diagram image". This is the worst possible outcome — the user gets neither usable code nor a visual diagram. When the user requests Mermaid format:
- MUST output the Mermaid code in a fenced code block (````mermaid`)
- SHOULD also render the code into a visual diagram image (via mermaid-cli or Playwright + mermaid.js)
- If rendering fails, deliver the code block and tell the user to paste it into mermaid.live
What ships with it
11 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.
- LICENSE.txt 745 B
- references/_rules.md 2.0 KB
- references/d3.md 6.1 KB
- references/echarts.md 19 KB
- references/matplotlib.md 20 KB
- references/mermaid.md 25 KB
- references/mindmap-css.md 36 KB
- references/playwright-css.md 30 KB
- references/radial-grid.md 20 KB
- references/seaborn.md 10 KB
- setup.sh 7.3 KB runs code
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.
- 12d ago First seen · 428 lines · 323 tokens per session scan A 519a90c00abe
charts is a skill published in the GitHub repository ssmurfgg04-gif/context-m (2 stars, last pushed yesterday), licensed Apache-2.0. It adds 323 tokens to every session and 5,804 once invoked, about $0.0016 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 2026-08-31.
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