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/johnviklund/agent-skills/memory.remembernpx skills add johnviklund/agent-skills --skill memory.remembergit clone --depth 1 https://github.com/johnviklund/agent-skillsWhat 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 | $0.00136 | $0.04336 |
| Opus 5 | $0.00068 | $0.02168 |
| Sonnet 5 | $0.00027 | $0.00867 |
| Haiku 4.5 | $0.00014 | $0.00434 |
Grade B, and why
memory.remember scanned grade B with 1 finding 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 yesterday.
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.
Enumerates other installed skillsmediumAgent snooping
Other skills' SKILL.md files reveal prompts, capabilities and secrets that should be invisible to peers.
- **Also list every installed plugin's skill names** — e.g. `ls ~/.copilot/installed-plugins/*/*/skills/` and `~/.copilot/installed-plugins/_direct/*/skills/` (Copilot), and `ls ~/.codex/skills/` (Codex, which mirrors pl The source is not reproduced here
No licence file
A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.
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.
- yesterday First seen · 222 lines · 136 tokens per session scan B db9d7f98b0ff
memory.remember is a skill published in the GitHub repository johnviklund/agent-skills (2 stars, last pushed 4d ago), with no licence file. It adds 136 tokens to every session and 4,336 once invoked, about $0.0007 per session on Opus 5. A static security scan graded it B with 1 finding (enumerates other installed skills). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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