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.
npx agentmods add agents/obedience-corp/festival/cursorgit clone --depth 1 https://github.com/Obedience-Corp/festivalWhat 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 | $0.00000 | $0.01395 |
| Opus 5 | $0.00000 | $0.00698 |
| Sonnet 5 | $0.00000 | $0.00279 |
| Haiku 4.5 | $0.00000 | $0.00139 |
Grade C, and why
cursor scanned grade C with 2 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 2d 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.
Downloads and executes remote codehighSupply chain
curl | sh runs whatever the server returns today, which is not necessarily what it returned when this was reviewed.
curl -fsSL https://raw.githubusercontent.com/Obedience-Corp/festival/main/install.sh | bash Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
curl -fsSL https://raw.githubusercontent.com/Obedience-Corp/festival/main/install.sh | bash How it starts
The opening of the file, as written. The whole thing — 118 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Cursor
Cursor's plugin system, which shipped in Cursor 2.5, carries every Festival surface: skills, commands, agents, and hooks. This is the fullest bundle after Claude Code. The loop is unchanged: fest next, do the task, fest task completed, fest commit.
Order matters. Install the binaries first, then open a campaign, then add the plugin.
1. Install Festival
Pick one:
# Homebrew
brew install --cask Obedience-Corp/tap/festival
# npm, pnpm, or bun
npm install -g @obedience-corp/festival
# Shell script
curl -fsSL https://raw.githubusercontent.com/Obedience-Corp/festival/main/install.sh | bash
Then check all three binaries answer:
fest --version
camp --version
festival --version
If either one is missing or resolves somewhere you did not expect, festival doctor reports the installer's view of your PATH, sources, and receipts. Full install options are on the installation page.
The plugin's install hook does this for you as well, in the way section 5 describes. Doing it by hand first means your first shell command in a session does not pause.
2. Open a campaign
A campaign is the directory Festival works in. Create one and stay at its root:
mkdir my-campaign && cd my-campaign
camp init
camp init writes the campaign layout, initializes git, creates the festivals tree, and writes an AGENTS.md at the root describing all of it. That file is the context every agent reads.
3. Add the Festival plugin
The plugin bundle lives in the Festival repository at .cursor-plugin/.
Cursor installs plugins from the Cursor Marketplace, and getting listed there is a manual submission of the public git repository, reviewed by Cursor. The Festival listing has not been submitted yet, so there is no marketplace entry to search for today.
Until it is live, work from a local clone:
git clone https://github.com/Obedience-Corp/festival.git
Then add the plugin from that clone with Cursor's in-editor /add-plugin. The exact prompt flow depends on your Cursor version, so follow what the editor asks rather than a command line copied from here.
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.
- 2d ago First seen · 118 lines · 0 tokens per session scan C 87b0040fd1dd
cursor is an agent published in the GitHub repository Obedience-Corp/festival (48 stars, last pushed 3d ago), licensed Apache-2.0. It costs nothing until one of its globs matches a file; then it loads 1,395 tokens. A static security scan graded it C with 2 findings (downloads and executes remote code, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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