What is remove-demo-limits?

Instructions for removing hosted-demo restrictions from a fork of Open Harness, including trial caps, deployment checks, and deletion limits.

Removing trial session and message caps, hosted-only errors, and restrictions on deleting messages, along with related unused code and tests.

It helps a self-hosted fork behave like a normal deployment instead of retaining limits intended for a managed demonstration.

remove-demo-limits — Skill for Claude Code and Codex by vercel-labs

About the project

Open Agents is an open-source reference application for running background coding agents through a web interface, durable workflows, isolated Vercel sandboxes, and GitHub integration. Developers fork and adapt it to let agents make code changes without keeping a local computer running. The catalogue entries provide skills, agents, and instructions for its workflow.

vercel-labs/open-agents · 5,884 stars · on GitHub · open-agents.dev

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 vercel-labs/open-agents --skill remove-demo-limits

Clone the repo

git clone --depth 1 https://github.com/vercel-labs/open-agents

Made for: Claude Code, Codex.

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/vercel-labs/open-agents/remove-demo-limits/github.svg)](https://agentmods.dev/skills/vercel-labs/open-agents/remove-demo-limits)

Your own site

<a href="https://agentmods.dev/skills/vercel-labs/open-agents/remove-demo-limits"><img src="https://agentmods.dev/badge/skills/vercel-labs/open-agents/remove-demo-limits/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/vercel-labs/open-agents/remove-demo-limits"><img src="https://agentmods.dev/badge/skills/vercel-labs/open-agents/remove-demo-limits.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 73 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 518 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. Third-party audits

NVIDIA SkillSpector warn 7 Sept 2026

SkillSpector: 1 finding, up to high

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

high Rogue Agent · line 36
Skill modifies its own code, configuration, or behavior at runtime. Self-modification enables an agent to escalate privileges, disable safety constraints, or install persistent backdoors.

Fix: Prevent the skill from modifying its own code, SKILL.md, or configuration files. Treat skill files as read-only at runtime.

How audits are shown

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	$0.00073	$0.00518
Opus 5.5	$0.00029	$0.00207
Sonnet 5.5	$0.00015	$0.00104
Haiku 4.5	$0.00007	$0.00052

Measured 2mo ago against content hash 6126746a39a0, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

remove-demo-limits 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 2mo ago.

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/remove-demo-limits/SKILL.md · 53 lines

What it actually says

Remove the managed-template trial restrictions with the smallest coherent change.

Goal

Make the fork behave like a normal self-hosted deployment:

no trial session cap
no trial message cap
no hosted-only restriction errors
no hosted-demo delete restrictions
no dead helper code or stale tests

Inspect first

Read these files before editing:

apps/web/lib/managed-template-trial.ts
apps/web/app/api/sessions/route.ts
apps/web/app/api/chat/route.ts
apps/web/app/api/sessions/[sessionId]/chats/[chatId]/messages/[messageId]/route.ts
apps/web/app/api/sessions/route.test.ts
apps/web/app/api/chat/route.test.ts
apps/web/app/api/sessions/[sessionId]/chats/[chatId]/messages/[messageId]/route.test.ts

Then search for these identifiers and strings to catch older or newer variants:

isManagedTemplateTrialUser
MANAGED_TEMPLATE_TRIAL_
deploy-your-own
open-agents.dev
vercel.com
This hosted deployment includes
does not allow message deletion

Required changes

Remove the guards that block session creation, chat messages, or message deletion for managed-template users.
If the auth callback still blocks non-Vercel emails on hosted deployments, remove that restriction too.
Delete apps/web/lib/managed-template-trial.ts if it becomes unused; otherwise simplify it so no dead exports remain.
Remove or update tests that assert the hosted caps, delete restrictions, or hosted-only auth gating.
Do not add feature flags, env toggles, or new dependencies. Prefer deleting the restriction code outright.
Keep unrelated auth, session ownership, and sandbox behavior unchanged.

Verification

This repo uses Bun. After the edits:

run bun run ci
if a failure is pre-existing, say that clearly and separate it from your changes

Output

Report:

which restrictions were removed
which files changed
verification result

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.

2mo ago First seen · 53 lines · 73 tokens per session scan A 6126746a39a0

Subscribe to this mod's changes

remove-demo-limits is a skill published in the GitHub repository vercel-labs/open-agents (5,884 stars, last pushed 2mo ago), licensed MIT. It adds 73 tokens to every session and 518 once invoked, about $0.0003 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 2026-08-31.

agent agents ai background-agents

remove-demo-limits next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
remove-demo-limitsvercel-labs/open-agents	Skill	5.9k	2mo ago	MIT	A	73	Claude Code, Codex
adk-unit-designgoogle/adk-python	Skill	22k	today	Apache-2.0	A	181	Claude Code, Codex
security-conductorkirodotdev/KiroCrew	Skill	4.8k	today	Apache-2.0	A	57	Claude Code, Codex
artifact-deploykirodotdev/KiroCrew	Skill	4.8k	today	Apache-2.0	A	74	Claude Code, Codex
explain-forkirodotdev/KiroCrew	Skill	4.8k	today	Apache-2.0	A	71	Claude Code, Codex
learn-from-sagekirodotdev/KiroCrew	Skill	4.8k	today	Apache-2.0	A	56	Claude Code, Codex
web-verifykirodotdev/KiroCrew	Skill	4.8k	today	Apache-2.0	A	0	Claude Code, Codex