What is vc:tech-graph?

A diagram-generation tool for producing technical visuals such as architecture diagrams, flowcharts, sequence diagrams, state machines, and comparison charts. It creates SVG diagrams first and can also produce PNG images.

Use it to document architecture, data flows, API sequences, system states, database relationships, use cases, timelines, or technical comparisons.

It turns complex system structure and processes into visuals that are easier to inspect, explain, and keep with project documentation.

vc:tech-graph — Skill for Claude Code by opencue/cuecards

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 opencue/cuecards --skill vc-tech-graph

Clone the repo

git clone --depth 1 https://github.com/opencue/cuecards

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/opencue/cuecards/vc-tech-graph/github.svg)](https://agentmods.dev/skills/opencue/cuecards/vc-tech-graph)

Your own site

<a href="https://agentmods.dev/skills/opencue/cuecards/vc-tech-graph"><img src="https://agentmods.dev/badge/skills/opencue/cuecards/vc-tech-graph/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/opencue/cuecards/vc-tech-graph"><img src="https://agentmods.dev/badge/skills/opencue/cuecards/vc-tech-graph.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 42 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,285 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.

Model	Per session	Once invoked
Fable 5.1	$0.00042	$0.01285
Opus 5.5	$0.00017	$0.00514
Sonnet 5.5	$0.00008	$0.00257
Haiku 4.5	$0.00004	$0.00128

Measured 1mo ago against content hash f728bf47ee61, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

vc:tech-graph 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 1mo ago.

The scan reads SKILL.md. This mod also ships 4 executable files (scripts/generate-diagram.sh, scripts/generate-from-template.py, scripts/test-all-styles.sh, …), 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.

.agents/skills/vc-tech-graph/SKILL.md · 153 lines

How it starts

The opening of the file, as written. The whole thing — 153 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Tech Graph

Generate publish-grade technical diagrams as SVG first, then PNG when raster export is needed.

This is a helper skill only.

Do use it for architecture diagrams, data flow diagrams, flowcharts, sequence diagrams, state machines, ER diagrams, use-case diagrams, timelines, and comparison matrices that should become durable artifacts.
Do use it when the output should live under process/general-plans/references/, process/general-plans/reports/visuals/, process/features/{feature}/references/, or process/features/{feature}/reports/visuals/.
Do use preview after generation when you want explanation, HTML framing, Mermaid review, or visual self-check of the finished artifact.
Do not use it as a plan or execution workflow.
Do not use it to replace inline doc diagrams when a lightweight Mermaid or ASCII explanation is enough.

Capability Surface

The local Flowser skill now includes upstream-style assets:

7 visual style references
style-to-diagram guidance matrix
icon and SVG layout reference material
reusable SVG templates
JSON regression fixtures
template-driven generation script
batch style validation script

Load the smallest references that fit the request:

references/style-diagram-matrix.md to choose a style and diagram family
references/style-1-flat-icon.md through references/style-7-openai.md for exact visual language
references/icons.md for semantic shapes and product-icon guidance
references/svg-layout-best-practices.md for spacing, routing, label, and export discipline
references/tech-graph-workflow.md for Flowser-specific routing and proof rules

Routing Matrix

Use tech-graph when the output should become a durable artifact:

process/general-plans/references/
process/general-plans/reports/visuals/
process/features/{feature}/references/
process/features/{feature}/reports/visuals/

Use preview instead when the goal is:

explain a concept visually
review an existing diagram
generate HTML slides or recaps
create inline Mermaid-first discussion material

Read the full file on GitHub · 153 lines

Files

What ships with it

35 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.

1mo ago First seen · 153 lines · 42 tokens per session scan A f728bf47ee61

Subscribe to this mod's changes

vc:tech-graph is a skill published in the GitHub repository opencue/cuecards (6 stars, last pushed yesterday), licensed MIT. It adds 42 tokens to every session and 1,285 once invoked, about $0.0002 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 2026-09-03.

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