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CodingIntermediate

Context Engineering Harness

Run context as an engineering discipline, not guesswork — inventory and rate every source your agents consume, write a per-job loading policy, fit it to a hard token limit with a cut log, and audit the setup for stale or contradictory context.

A 4-step agentic workflow pack for coding built to run with ChatGPT, Claude, Gemini, Claude Code, and Cursor. Open the Markdown files, fill the variables, and paste into your model. Most buyers get a reviewable result in about 15 minutes.

  • Inventory every context source — files, docs, schemas, transcripts — with freshness, authority, and token-cost ratings
  • Write an explicit per-job loading policy: must-loads in order, conditionals with script-evaluable triggers, exclusions with reasons
  • Fit candidate context into any hard token limit with a justification per inclusion and a cut log per exclusion
  • Catch context rot — stale, duplicated, contradictory, orphaned, and injection-prone material — against a six-category failure catalog
  • Turn one-off context cleanups into a standing discipline with fallback rules, re-audit triggers, and stable ctx-N ids across all four prompts
  • Works on any stack and any agent setup — chat models, Claude Code, Cursor, or custom pipelines
CChatGPTClaudeClaudeGeminiGeminiClaude CodeClaude CodeCursorCursor
promptscart.com / prompt-packs / context-engineering-harness-prompt-pack
Run in
ChatGPT · Claude +3
Your AI model
Step 1
Context Inventory Builder
Dump every context source — repo trees, docs, schemas, system prompts, transcripts — plus the agent jobs they serve.
Step 2
Per-Job Context Policy Designer
Paste the inventory, one recurring job, and its token budget.
Step 3
Context Budget Fitter
Paste the candidate items, the hard token limit, and the job they serve.
Step 4
Context Rot Auditor
Paste what your agent actually receives — system prompt, instruction files, memory, pinned docs — plus any observed misbehaviour.
Output
Your deliverable
Copy-paste ready
One-time
$8
~8 hrs / week
time back

Prompt Customization Serviceoptional help adapting variables and output to your brand voice. Choose your tier at checkout (not tied to this prompt's price).

Instant download after payment
Refund as per the Refund Policy.
Email Support · 24h SLA
Lifetime updates

Models supported
C ChatGPTClaude ClaudeGemini GeminiClaude Code Claude CodeCursor Cursor
Best valueSave $786
Get this pack + 101 more in the Lifetime Bundle

This pack is $8 on its own. Buying every pack separately costs $935. The Lifetime Bundle is $149 one-time — you save $786 (84% off) and unlock every future pack free.

Get the Lifetime Bundle — $149
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What ships with your purchase

Prompt files

Plain Markdown files with `{{variables}}` you fill in, ready to paste into ChatGPT, Claude, or Gemini. No setup, no tooling required.

Usage guide

Variable reference, model compatibility, examples, and customization tips so you can adapt the pack to your brand voice.

Lifetime updates

When we improve the pack, you get the new version automatically. Email support included with every purchase.

Models tested: ChatGPT, Claude, Gemini, Claude Code, Cursor.

The workflow inside this pack

4 composable prompts you run in order — each one picks up where the last left off.

  1. Step 1

    Context Inventory Builder

    Dump every context source — repo trees, docs, schemas, system prompts, transcripts — plus the agent jobs they serve.

  2. Step 2

    Per-Job Context Policy Designer

    Paste the inventory, one recurring job, and its token budget.

  3. Step 3

    Context Budget Fitter

    Paste the candidate items, the hard token limit, and the job they serve.

  4. Step 4

    Context Rot Auditor

    Paste what your agent actually receives — system prompt, instruction files, memory, pinned docs — plus any observed misbehaviour.

Perpetual (lifetime) use license

Your one-time purchase includes an ongoing right to use this prompt pack with the AI tools and models you control for your own and your clients' work — not for resale or public redistribution of the files as a product.

We keep the copyright

The prompt files, guides, examples, and bundled assets stay our copyrighted works (or our licensors'). Payment grants the limited license in our Terms only — it does not transfer ownership.

Need help adapting this prompt to your team? Add Prompt Customization Service at checkout.

FAQ

How long does it take to use Context Engineering Harness?
Most buyers finish in a few minutes: open the prompt file, fill the variables, and paste into your model. The first run is the slowest because you decide variable values; reuse is instant.
What if I get stuck?
Email support@promptscart.com. Free basic support is included with every purchase, and you'll get a reply from our team within 24 hours. If you need help adapting variables or output, we can schedule a call.
Do I need a paid plan with ChatGPT?
The prompt works on free tiers of ChatGPT, Claude, and Gemini. Heavy use can hit free-tier limits; paid plans get longer context and faster responses, but the prompt itself is the value.
Can I customize the prompt?
Yes, completely. You own the prompt files: edit the role framing, add variables, swap output sections, fork it to match your brand voice. Support can help you plan customizations over email.
What if it doesn't work for me?
Refund as per our Refund Policy (https://promptscart.com/refund-policy). Or add Prompt Customization Service at checkout for help adapting variables and output to your workflow.