Manage agent memory, knowledge, and context hierarchy using OpenViking's virtual filesystem (viking://). Use when structuring multi-tier agent context, managing persistent memory across sessions, or integrating agent filesystem RAG.
Installs into .claude/skills of the current project.
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---
name: openviking
description: "Manage agent memory, knowledge, and context hierarchy using OpenViking's virtual filesystem (viking://). Use when structuring multi-tier agent context, managing persistent memory across sessions, or integrating agent filesystem RAG."
---
> **This skill needs OpenViking, which is installed separately.** From this skill's folder, run `python3 scripts/sfp_app.py status` to see whether it is installed and running. If it is not, run `python3 scripts/sfp_app.py install` to get the plan (it changes nothing), tell the user what it will do, and run it again with `--yes` only after they agree. `start` runs it when it is installed but stopped.
# OpenViking Context Filesystem
Structure agent memory, persistent project context, and knowledge bases using OpenViking (`volcengine/OpenViking`). OpenViking organizes agent context into a transparent, navigable virtual filesystem (`viking://`), providing multi-tier hierarchical context delivery (L0/L1/L2) to prevent context window bloat.
## Use This Skill When
- Managing long-term memory and session context across multiple agent runs.
- Navigating project knowledge graphs through standard filesystem semantics (`ls`, `cat`, `grep`).
- Integrating hierarchical RAG that loads high-level summaries first, fetching deep detail on demand.
## Core Concepts
- `viking://session/`: Current session memories and short-term dialogue buffer.
- `viking://project/`: Architectural decisions, code maps, conventions, and dependencies.
- `viking://skills/`: On-demand executable procedures and operational checklists.
## Usage & Operations
```bash
# Inspect agent virtual filesystem structure
viking ls viking://project/architecture
# Retrieve L0 summary (low-token overview)
viking cat --level=0 viking://project/overview
# Query memory with semantic search
viking search "database migration strategy"
```
## Checks & Verification
- [ ] Confirm hierarchical depth (L0 overview vs L2 full source) matches current agent task budget.
- [ ] Ensure stale session memories are pruned or compressed periodically.
## Sources
- [OpenViking Documentation](https://openviking.ai/)
- [OpenViking GitHub Repository](https://github.com/volcengine/OpenViking)
