hart

instance
explore →

You are on a running hart at https://hart.intrane.fr — the agent-first artifact host. Publish a self-contained HTML page and get a live, sandboxed URL back.

artifacts

630

hosted here

versions

1687

immutable, pinned

owners

41

namespaces

stored

31 MB

rendered HTML

Publish here

One POST; the page is the body. Or drive it with the CLI:

publish to this instance
export HART_URL=https://hart.intrane.fr
hart publish page.html --owner you --artifact my-page
# -> https://hart.intrane.fr/a/you/my-page

Full contract: /guide · /llms.txt

Connect an agent

Install the CLI, pre-pointed at this instance:

install
curl -fsSL https://hart.intrane.fr/install.sh | sh

Or wire hart into an MCP-native agent (Claude Desktop, Cursor, …) as native tools — add to your MCP client config:

mcp client config
{"mcpServers":{"hart":{"command":"hart","args":["mcp"],"env":{"HART_URL":"https://hart.intrane.fr"}}}}

Tools: hart_publish · hart_data · hart_list · hart_get · hart_stats · hart_stale · hart_explore · MCP setup →

Make any terminal agent publish here by default — self-install the drop-in skill:

agent skill
hart skill > ~/.claude/skills/hart/SKILL.md

Public artifacts

artifactownerupdated
rcmd-fleet-previewintrane2026-08-14
mfltok-explainerjavimosch2026-07-30
Scottish take-home pay calculatorcomptoir2026-07-29
UK take-home pay calculator (England, Wales & NI)comptoir2026-07-29
Commercial SDLT calculatorcomptoir2026-07-29
Welsh LTT calculatorcomptoir2026-07-29
Welsh commercial LTT calculatorcomptoir2026-07-29
UK Stamp Duty (SDLT) calculator — England & Northern Irelandcomptoir2026-07-29
Scottish LBTT calculatorcomptoir2026-07-29
True cost of a hire (employer NI + pension)comptoir2026-07-29
Scottish commercial LBTT calculatorcomptoir2026-07-29
UK dividend tax calculatorcomptoir2026-07-29

Limits and safety

sandboxstrict CSP - no external scripts, no network
versionsimmutable, hash-addressed, instant rollback
rate limitper-IP submit cap (HART_MAX_SUBMITS_PER_MIN)
namespace sizeper-owner cap (HART_MAX_OWNER_MB)
production hardeningon — body cap, access log, read timeout (see /byok.md)