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MarkSight

Skill · GitHub · ★ 18 · graded 2026-10-20Source linked

Browser-only Markdown editor that packages any document into a Claude Agent Skill (SKILL.md / .skill bundle) in one click — and exposes an MCP server for Claude Code. Live preview, GFM tables, Mermaid, Prism, HTML/PDF export. No account, 100% local. Next.js + React.

No outside reports on file

MarkSight reads local files and fetches arbitrary web URLs; restrict its folder reach, network access, and credentials before installing.

Based on public adoption and transparency signals as of Oct 19, 2026. Our opinion, not a code audit or security guarantee.

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What it can access

  • Local filesReads local filesNOTED
  • Command executionNo shell command runner notedLOW
  • Network reachFetches arbitrary web URLsREVIEW
  • CredentialsNo API token requiredLOW
  • Package sourceGitHub (Rinava/MarkSight)PUBLIC

Inferred from this listing’s public package details and description. Check the project’s source before installing.

Install

No npm or PyPI package is listed. Install from source: github.com/Rinava/MarkSight ↗

All setup options ↓

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About MarkSight

MarkSight is an agent skill focused on Developer tools and Web & browsing: Browser-only Markdown editor that packages any document into a Claude Agent Skill (SKILL.md / .skill bundle) in one click — and exposes an MCP server for Claude Code. Live preview, GFM tables, Mermaid, Prism, HTML/PDF export. No account, 100% local. Next.js + React.

It is hosted on GitHub at Rinava/MarkSight (18 GitHub stars). Based on its public metadata, its operational scope includes: reads local files, fetches arbitrary web urls.

Setup

These use the package this listing points to. Check the project’s own instructions before running anything.

No npm or PyPI package is listed for this agent skill. Source code and setup steps: github.com/Rinava/MarkSight.

Why this grade

DD — High risk signals

Signal-based grade (1/7 points): public source code. This reflects adoption and transparency, not a code review.

Popularity and upkeep

16/100
GitHub stars
18
Listing last refreshed
2026-10-25

These are public popularity signals, not a maintenance check. Look at the repository’s commit history and open issues.

Security reports

No reports found for this package in our research (last checked 2026-10-29).

Check a specific version →

Risks to watch for

  • Local file read access: Reads local documents or database files. Point it only at the specific files needed for the task so sensitive workspace files remain out of reach.
  • Untrusted web content & prompt injection: Fetches arbitrary web pages or remote endpoints where hidden instructions could manipulate agent behavior. Restrict outbound domains and review tool outputs.
  • Dependency & version pinning: Distributed via GitHub (Rinava/MarkSight). Pin an exact release version or commit SHA rather than floating tags so upstream updates are reviewed first.

How to lower the risk

Least-privilege permissions

  • Give it access only to the specific folders, accounts or projects it needs, never your whole drive or admin account.
  • Use a separate, limited API key or login just for this tool so you can switch it off without affecting anything else.

Network isolation

  • Run it on a work computer or sandbox account, not one holding personal or company-sensitive data.
  • If your IT team can, limit which websites and services it is allowed to contact.

Monitoring

  • Check its activity history or logs weekly at first, and look at what it changed or sent.
  • Turn on alerts for new logins or unusual usage on any account it connects to.

Red flags to watch for

  • It asks for more access than its job requires, or prompts you to paste passwords.
  • It suddenly updates with new owners, or starts contacting unfamiliar websites.

Questions

How do I install MarkSight?

MarkSight does not publish a standalone npm or PyPI package. Clone or follow the setup instructions in its source repository at github.com/Rinava/MarkSight.

Are there security reports about MarkSight?

No reports found for this package in our research (last checked 2026-10-29). MarkSight currently holds Grade D (High risk signals) based on public adoption and transparency signals. Review the permissions and source repository before granting access to local files, shell commands, or API keys.

Is MarkSight actively maintained?

MarkSight has 18 GitHub stars. Our directory data was last refreshed on 2026-10-25. Check recent commit activity, release tags, and open issues at github.com/Rinava/MarkSight before pinning it in production.

What are alternatives to MarkSight?

You can compare MarkSight side by side with other Browser skills in the Related tools section on this page, or use the Compare tool on AgentArmorHQ.

README badge and team notes

Maintain or use MarkSight? Show its live grade in your GitHub README, docs site, or run a check from the terminal before you install.

AgentArmorHQ Risk Grade D for MarkSight

GitHub README Markdown:

markdown
[![AgentArmorHQ Risk Grade for MarkSight](https://agentarmorhq.com/api/badge/rinava-marksight)](https://agentarmorhq.com/skills/rinava-marksight)

HTML embed:

html
<a href="https://agentarmorhq.com/skills/rinava-marksight"><img src="https://agentarmorhq.com/api/badge/rinava-marksight" alt="AgentArmorHQ Risk Grade for MarkSight" height="20" /></a>

Terminal check:

terminal
curl -fsSL https://agentarmorhq.com/api/cli | node --input-type=module - check "rinava-marksight"

Share with your security lead

Need sign-off to use MarkSight? Copy this note for Slack, a ticket or a pull request.

### AgentArmorHQ Security Review Memo: MarkSight
- **Listing URL:** https://agentarmorhq.com/skills/rinava-marksight
- **Type:** AI agent skill
- **Risk Grade:** Grade D (High risk signals)
- **Outside Security Advisories on File:** 0
- **Public Adoption:** 18 GitHub stars

#### Permission & Blast-Radius Signals
- **Local files:** Reads local files
- **Command execution:** No shell command runner noted
- **Network reach:** Fetches arbitrary web URLs
- **Credentials:** No API token required
- **Package source:** GitHub (Rinava/MarkSight)

#### Recommended Hardened Setup
- **Source Repo:** https://github.com/Rinava/MarkSight
- **Controls:** Pin an exact version in `.mcp.json`, scope access to a single workspace folder, and use a least-privilege read-only token where supported.

_Based on public adoption and transparency signals as of Oct 19, 2026. Our opinion, not a code audit or security guarantee._

Key facts

Type
AI agent skill
Publisher
Rinava
Source code
github.com/Rinava/MarkSight
Est. context load
~93 tokens idle · ~1.6k tokens when active (on-demand skill)
Popularity
18 GitHub stars
Last updated
2026-10-25
Last graded
2026-10-20

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