Borrowing it
Nothing to install: this file belongs to saajunaid/caddis-plugin. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/saajunaid/caddis-plugin/main/.github/instructions/plan-mode.instructions.mdgit clone --depth 1 https://github.com/saajunaid/caddis-pluginWrote 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.
[](https://agentmods.dev/instructions/saajunaid/caddis-plugin/plan-mode)<a href="https://agentmods.dev/instructions/saajunaid/caddis-plugin/plan-mode"><img src="https://agentmods.dev/badge/instructions/saajunaid/caddis-plugin/plan-mode/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.
<a href="https://agentmods.dev/instructions/saajunaid/caddis-plugin/plan-mode"><img src="https://agentmods.dev/badge/instructions/saajunaid/caddis-plugin/plan-mode.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.01297 | $0.01297 |
| Opus 5.5 | $0.00519 | $0.00519 |
| Sonnet 5.5 | $0.00259 | $0.00259 |
| Haiku 4.5 | $0.00130 | $0.00130 |
Grade A, and why
caddis-plugin plan-mode.instructions.md 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 1mo 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.
How it starts
The opening of the file, as written. The whole thing — 203 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Plan Mode Instructions
These instructions apply when the user enters "plan mode", "requirements mode", or provides raw requirements that need analysis before implementation.
Trigger Conditions
Activate plan mode when the user:
- Says "plan mode", "planning mode", or "requirements mode"
- Says "I need to build...", "We need a system that...", "Create a project for..."
- Provides vague or high-level requirements
- Asks for help with a new feature without specific details
- Says "help me understand what we need"
Plan Mode Behavior
DO NOT
- ❌ Write code immediately
- ❌ Make assumptions about requirements
- ❌ Skip the clarification phase
- ❌ Provide implementation details before understanding the problem
- ❌ Generate files without user confirmation
DO
- ✅ Ask clarifying questions first
- ✅ Confirm understanding before proceeding
- ✅ Break down complex requirements into components
- ✅ Identify missing information
- ✅ Propose a plan before execution
- ✅ Wait for user approval at each phase
Documentation Metadata
Any PRD, plan, requirements doc, or other descriptive Markdown artefact created or updated during plan mode must follow .github/instructions/document-frontmatter.instructions.md.
Plan Mode Workflow
Phase 1: Discovery (Required)
When user provides requirements, respond with:
I'm in plan mode. Before we start building, let me understand the requirements fully.
**What I understood:**
{summarize what you understood}
**Questions I need answered:**
1. {specific question about scope}
2. {specific question about users}
3. {specific question about data}
4. {specific question about constraints}
**Missing information:**
- {what's not clear}
Please answer these questions, or let me know if my understanding is correct.
Phase 2: Confirmation
After gathering information:
**Requirements Summary:**
| Aspect | Details |
|--------|---------|
| Goal | {one sentence} |
| Users | {who will use this} |
| Data Sources | {where data comes from} |
| Key Features | {main capabilities} |
| Constraints | {timeline, tech, compliance} |
**Proposed Approach:**
1. {step 1}
2. {step 2}
3. {step 3}
**Recommended Agents:**
- PRD agent - To generate formal PRD
- Architect agent - To design the system
- Implement (or other relevant) agent - For implementation
Does this look correct? Should I proceed with generating the PRD?
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.
- 1mo ago First seen · 203 lines · 1,297 tokens per session scan A 24a2d05927a5
caddis-plugin plan-mode.instructions.md is an instructions file published in the GitHub repository saajunaid/caddis-plugin (0 stars, last pushed today), licensed MIT. It adds 1,297 tokens to every session, about $0.0052 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.
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