# Context Engineering Planner

> Plan the context, artifacts, memory, retrieval, and compression surfaces needed for an agent workflow or long-horizon task.

- **Type:** Skill
- **Install:** `agentstack add skill-45ck-skill-harness-context-engineering-planner`
- **Verified:** Yes — security-reviewed for prompt injection and unsafe behavior
- **Seller:** [45ck](https://agentstack.voostack.com/s/45ck)
- **Installs:** 0
- **Category:** [Search](https://agentstack.voostack.com/c/search)
- **Latest version:** 0.1.0
- **License:** MIT
- **Upstream author:** [45ck](https://github.com/45ck)
- **Source:** https://github.com/45ck/skill-harness/tree/main/packs/agent-operating-skills/skills/context-engineering-planner
- **Website:** https://github.com/45ck/skill-harness/releases/tag/v0.1.0

## Install

```sh
agentstack add skill-45ck-skill-harness-context-engineering-planner
```

Requires the [AgentStack CLI](https://agentstack.voostack.com/docs/cli). Works with Claude Code, Cursor, and any MCP-compatible agent.

## About

# Context Engineering Planner

Use this skill when an agent workflow needs deliberate context design instead of a large undifferentiated prompt.

## Plan

- Identify the decision the agent must make and the evidence it needs.
- Split context into durable source, transient working context, generated evidence, and memory candidates.
- Prefer repo files, issues, manifests, tests, traces, and docs over prose recollection.
- Define what may be retrieved automatically and what must be explicitly requested.
- Define what should be compressed, summarized, or excluded.
- Name stale-context risks and refresh checks.

## Context Classes

- `source`: canonical specs, code, issues, policies, manifests
- `evidence`: tests, logs, screenshots, traces, evaluation results
- `memory`: reusable lessons worth recording with the project memory mechanism
- `working`: temporary notes used only for the current run
- `excluded`: secrets, private data, raw traces, irrelevant history, stale generated output

## Output

### Workflow Goal
### Required Source Context
### Evidence Inputs
### Retrieval Plan
### Compression Plan
### Memory Candidates
### Exclusions
### Refresh Checks

## Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

- **Author:** [45ck](https://github.com/45ck)
- **Source:** [45ck/skill-harness](https://github.com/45ck/skill-harness)
- **License:** MIT
- **Homepage:** https://github.com/45ck/skill-harness/releases/tag/v0.1.0

Install and usage instructions live in the source repository linked above.

## Pricing

- **Free** — Free

## Security capabilities

Automated source analysis of v0.1.0 — what this tool can access:

- **Network access:** no
- **Filesystem access:** no
- **Shell / process execution:** no
- **Environment & secrets:** no
- **Dynamic code execution:** no

*"Yes" means the capability is present in the source — more access means more to trust, not that it is unsafe.*


## Versions

- **0.1.0** — security scan: passed — Imported from the upstream source.

## Links

- Listing page: https://agentstack.voostack.com/l/skill-45ck-skill-harness-context-engineering-planner
- Seller: https://agentstack.voostack.com/s/45ck
- Browse the marketplace: https://agentstack.voostack.com/browse

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Listed on AgentStack — the marketplace for AI agent skills and MCP servers. Every listing is security-reviewed. Creators keep 70%.