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[CLAUDE OPUS 5 or SONNET 5 — extended thinking enabled]
Act as a planning agent. Break down the following goal into a complete execution plan, then work through each step.
Goal: [DESCRIBE THE OBJECTIVE IN PLAIN ENGLISH]
Constraints: [TIME / BUDGET / RESOURCES / TOOLS AVAILABLE]
Definition of success: [HOW YOU WILL KNOW THE GOAL IS ACHIEVED]
Planning phase (do this first, before taking any action):
1. List every major step required
2. Identify dependencies between steps
3. Flag any step where you need information you do not have
4. Estimate effort for each step
Execution phase:
Work through each step in order. At the end of each step: confirm what you did, what changed, and what comes next. If you hit a blocker, state it clearly and propose two alternatives before stopping.
[CLAUDE OPUS 5 — 1M context, extended thinking]
Investigate the following question. Use all information available to you and reason through it carefully before concluding.
Question: [WHAT YOU NEED TO KNOW]
Scope: [HOW DEEP TO GO — e.g. overview only / comprehensive / focus on X aspect]
Output format: [SUMMARY / FULL REPORT / BULLET POINTS]
Research process:
1. Identify what you know with high confidence
2. Identify what you are uncertain about
3. Identify what you cannot know without additional sources
4. For each claim in your output: indicate your confidence level (high / medium / low)
Do not present uncertain information as fact. Do not fill gaps with plausible-sounding speculation — mark gaps as gaps.
[CLAUDE — computer use API beta]
Complete the following task using the browser. Work autonomously. State what you are doing at each step. Ask for confirmation only before any irreversible action (submitting a form, making a purchase, deleting data).
Task: [DESCRIBE WHAT YOU NEED DONE IN A BROWSER]
Starting URL: [URL IF KNOWN]
Login required: [YES / NO — if yes, I will provide credentials separately]
What counts as done: [HOW TO KNOW THE TASK IS COMPLETE]
If you reach a CAPTCHA or 2FA: stop and notify me.
If you reach a paywall: stop and notify me.
At the end: summarise what you did, what you found or completed, and any issues encountered.
[CLAUDE MANAGED AGENTS — parallel subagent execution]
You are coordinating a set of parallel subagents working on different parts of the same project. Your job is to assign tasks, monitor outputs, and synthesise results.
Project: [DESCRIBE THE OVERALL PROJECT]
Available subagents: [LIST — e.g. research_agent, writing_agent, data_agent]
Parallel tasks to assign: [LIST WHAT EACH SUBAGENT SHOULD DO SIMULTANEOUSLY]
Dependencies: [WHICH TASKS MUST COMPLETE BEFORE OTHERS CAN START]
Coordination rules:
1. Assign parallel tasks first — do not sequence what can run simultaneously
2. After each subagent reports back: verify the output before passing it to the next step
3. If a subagent fails: reassign to an alternative or flag for human review
4. Final step: synthesise all outputs into a coherent deliverable
[CLAUDE SONNET 5 — with tool use enabled]
Complete the following data workflow using the tools available to you. Do not stop between tool calls to ask for confirmation — work through the complete sequence and report at the end.
Workflow: [DESCRIBE WHAT DATA COMES IN, WHAT HAPPENS TO IT, WHAT SHOULD COME OUT]
Tools available: [LIST TOOLS AND WHAT EACH DOES]
Error handling: [WHAT TO DO IF A TOOL CALL FAILS — retry / skip / abort]
Output: [WHAT THE FINAL DELIVERABLE SHOULD LOOK LIKE]
After completing the workflow: summarise every tool call made, its result, and any steps that required adjustment from the original plan.
[CLAUDE SONNET 5 or OPUS 5 — extended thinking]
Complete the following task. After completing it, verify your own output against the requirements before delivering it.
Task: [DESCRIBE WHAT YOU NEED PRODUCED]
Requirements checklist:
- [ ] [REQUIREMENT 1]
- [ ] [REQUIREMENT 2]
- [ ] [REQUIREMENT 3]
- [ ] [REQUIREMENT 4]
Verification process:
After producing the output, go through each requirement and mark it complete or incomplete. If any requirement is incomplete: fix it before delivering. Only deliver the output once all requirements are checked.
At the bottom of your response: include the completed checklist showing which requirements passed and which needed revision.