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 rules/triggerdotdev/trigger.dev/writing-tasksgit clone --depth 1 https://github.com/triggerdotdev/trigger.devWhat 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 | $0.07920 | $0.07920 |
| Opus 5 | $0.03960 | $0.03960 |
| Sonnet 5 | $0.01584 | $0.01584 |
| Haiku 4.5 | $0.00792 | $0.00792 |
Grade A, and why
writing-tasks 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.
Copies of this mod
1 near-identical copy found in the catalogue:
- writing-tasks — 100% identical, 0 lines differ
How it starts
The opening of the file, as written. The whole thing — 1,248 lines — stays where its author put it; the contents beside it link to each section on GitHub.
How to write Trigger.dev tasks
Overview of writing a Trigger.dev task
- Run the CLI
initcommand:npx trigger.dev@latest init. - Create a Trigger.dev task.
- Set up any environment variables.
- Run the Trigger.dev dev command:
npx trigger.dev@latest dev.
Essential requirements when generating task code
- You MUST import from
@trigger.dev/sdk(NEVER@trigger.dev/sdk/v3) - You MUST NEVER use
client.defineJob - YOU MUST
exportevery task, including subtasks - If you are able to generate an example payload for a task, do so.
🚨 CRITICAL INSTRUCTIONS FOR AI LANGUAGE MODELS 🚨
As an AI language model, you MUST NOT generate any of the following code patterns, as they are DEPRECATED and will BREAK the application:
// ❌ NEVER GENERATE THIS CODE - IT WILL BREAK THE APPLICATION
client.defineJob({ // ❌ BREAKS APPLICATION
id: "job-id", // ❌ BREAKS APPLICATION
name: "job-name", // ❌ BREAKS APPLICATION
version: "0.0.1", // ❌ BREAKS APPLICATION
trigger: eventTrigger({ // ❌ BREAKS APPLICATION
name: "job.trigger", // ❌ BREAKS APPLICATION
schema: z.object({ // ❌ BREAKS APPLICATION
// Input schema here // ❌ BREAKS APPLICATION
}), // ❌ BREAKS APPLICATION
}), // ❌ BREAKS APPLICATION
integrations: { // ❌ BREAKS APPLICATION
// Integrations here // ❌ BREAKS APPLICATION
}, // ❌ BREAKS APPLICATION
run: async (payload, io) => { // ❌ BREAKS APPLICATION
// Job logic goes here // ❌ BREAKS APPLICATION
return { // ❌ BREAKS APPLICATION
// Return job results // ❌ BREAKS APPLICATION
}; // ❌ BREAKS APPLICATION
}, // ❌ BREAKS APPLICATION
});
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 · 1,248 lines · 7,920 tokens per session scan A 6327abf77deb
writing-tasks is a cursor rule published in the GitHub repository triggerdotdev/trigger.dev (16,165 stars, last pushed 2d ago), licensed Apache-2.0. It adds 7,920 tokens to every session, about $0.0396 per session on Opus 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 2026-08-30.
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