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.
/plugin marketplace add os-tack/fcpnpx agentmods add plugins/os-tack/fcp/marketplacegit clone --depth 1 https://github.com/os-tack/fcpGrade A, and why
fcp-plugins 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 yesterday.
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 — 190 lines — stays where its author put it; the contents beside it link to each section on GitHub.
{
"name": "fcp-plugins",
"owner": {
"name": "Scott Meyer"
},
"metadata": {
"description": "FCP plugin marketplace \u2014 MCP servers for complex file formats, Python/Rust codebases, regex construction, and PDF documents",
"version": "0.2.26"
},
"plugins": [
{
"name": "fcp",
"source": "./",
"description": "All FCP servers \u2014 diagrams, infrastructure, music, spreadsheets, presentations, PDF documents, Python/Rust codebases, and regex construction",
"version": "0.2.26",
"license": "MIT",
"category": "development",
"keywords": [
"fcp",
"mcp",
"drawio",
"terraform",
"midi",
"sheets",
"slides",
"pdf",
"python",
"rust",
"regex"
]
},
{
"name": "fcp-drawio",
"source": {
"source": "github",
"repo": "os-tack/fcp-drawio"
},
"description": "Create and edit draw.io diagrams through intent-level commands",
"version": "0.3.0",
"license": "MIT",
"category": "development",
"keywords": [
"drawio",
"diagrams",
"architecture",
"mcp"
]
},
{
"name": "fcp-terraform",
"source": {
"source": "github",
"repo": "os-tack/fcp-terraform"
},
"description": "Generate Terraform HCL through resource declarations",
"version": "0.2.0",
"license": "MIT",
"category": "devops",
"keywords": [
"terraform",
"hcl",
"infrastructure",
"mcp"
]
},
{
"name": "fcp-midi",
"source": {
"source": "github",
"repo": "os-tack/fcp-midi"
},
"description": "Semantic MIDI music composition",
"version": "0.2.0",
"license": "MIT",
"category": "creative",
"keywords": [
"midi",
"music",
"composition",
"mcp"
]
},
{
"name": "fcp-sWhat ships with it
1 file beside marketplace.json 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.
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.
- yesterday First seen · 190 lines scan A e1dc01b11ea7
fcp-plugins is a plugin published in the GitHub repository os-tack/fcp (2 stars, last pushed 1mo ago), licensed MIT. Its token cost is not measured: this kind of file is read by the harness, not the model. 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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