Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add skills/hkuds/openopc/memorynpx skills add HKUDS/OpenOPC --skill memorygit clone --depth 1 https://github.com/HKUDS/OpenOPCWhat 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 | $0.00028 | $0.00248 |
| Opus 5 | $0.00014 | $0.00124 |
| Sonnet 5 | $0.00006 | $0.00050 |
| Haiku 4.5 | $0.00003 | $0.00025 |
Grade A, and why
memory 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 2d 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.
What it actually says
Memory
Use this skill only for durable Markdown memory:
- Global memory:
.opc/memory/global.md - Project memory:
.opc/memory/projects/<current_project_id>.md - Prefer the absolute
OPC_GLOBAL_MEMORY_PATHandOPC_PROJECT_MEMORY_PATHshown in runtime context or environment; do not create a separate.opc/memoryunder the workplace.
What To Save
- Global: stable cross-project user preferences, communication defaults, standing constraints.
- Project: current-project preferences, workspace overrides, repo paths, architecture constraints, coding conventions, delivery requirements.
- Never save secrets, copied transcripts, temporary progress, speculative notes, or one-off task results.
When to Update
- Update only during interaction with the user, and only when the user states or confirms something that should matter in later sessions.
How to Update
Read before editing. Merge, deduplicate, replace stale items, and keep entries compact. Do not mix project IDs: write project memory only to the current project's file.
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.
- 2d ago First seen · 27 lines · 28 tokens per session scan A 5ce8fa340c44
memory is a skill published in the GitHub repository HKUDS/OpenOPC (1,594 stars, last pushed yesterday), licensed MIT. It adds 28 tokens to every session and 248 once invoked, about $0.0001 per session on Opus 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 2026-08-30.
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chat-perf
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Use when creating or changing VS Code chat pet sprite art, sprite sheets, state animations, eye treatments, Stable/Insiders variants, or pet transitions under src/vs/workbench/contrib/chat/browser/widget/media/chatPet.
cpu-profile-analysis
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