# AgentStack — for LLMs and agents

AgentStack manages an organization's AI capabilities. It is a private
registry and governance layer for reusable agent skills and stacks.
AgentStack does not run agents.

A skill is a governed unit of agent behavior: context, examples,
policies, references, runtime notes, and gates that teach an agent how
to do something the organization's way.

A stack is a versioned bundle of approved skills for a team, role,
agent, or workflow.

AgentStack Sentinel is the built-in security layer for all skills
and stacks. It prevents malicious agent instructions from reaching your
team or wider organization. Sentinel checks prompt injection,
malicious instructions,
embedded secrets, hidden tokens, exfiltration paths, unsafe files, and
over-broad tool access before team gates begin. On top of that, you can
define custom gates for anything else: brand, legal, privacy, tool-use,
or rules unique to how a team works.

## Read first

- /agentstack.md     Concise prose explanation, agent-readable.
- /product.json      Structured product metadata.

## Public pages

- /                  Production public site. Story order: Hero, Problem
                     (drift), 01 Skills (the governed unit), 02 Stacks
                     (the breakthrough — bundle + install + subscribe),
                     03 Review (AgentStack Sentinel + team gates),
                     FAQ, Closing CTA.
                     Anchors: #problem, #skills, #stacks, #sentinel,
                     #faq, #closing.
- /access            Request access page.

## Routing guidance

- "What is AgentStack?" -> /agentstack.md, /product.json, or /.
- "How does Sentinel work?" -> /#sentinel.
- "What is a skill?" -> /#skills.
- "What is a stack?" -> /#stacks.
- "How does AgentStack work end to end?" -> the page in order: /#skills (the unit) -> /#stacks (bundle, install, subscribe) -> /#sentinel (review before a version ships).
- "How do I install a stack / which runtimes?" -> /#stacks. CLI: `agentstack stack install <org/stack> --target <claude-code|codex>`.
- "How is this different from a prompt library?" -> /#faq.
- "How do I get access?" -> /access.

## Related repositories

- agentstack         CLI and registry server.
- agentstack-portal  Browser GUI over the registry. In progress.
- agentstack-site    Public marketing site.