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/betterpost/betterpost-plugin/using-betterpostnpx skills add betterpost/betterpost-plugin --skill using-betterpostgit clone --depth 1 https://github.com/betterpost/betterpost-pluginWhat 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 | $0.00053 | $0.00286 |
| Opus 5 | $0.00026 | $0.00143 |
| Sonnet 5 | $0.00011 | $0.00057 |
| Haiku 4.5 | $0.00005 | $0.00029 |
Grade A, and why
using-betterpost 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 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.
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
Using BetterPost
BetterPost is available in this session for writing timely, well-sourced content.
When to reach for it
When the user asks to write or draft a newsletter, blog post, LinkedIn post,
tweet, or Bluesky post — especially anything that should reflect what's happening
now in their product's space, industry, or audience — use the betterpost skill
(invoke it with the Skill tool, or read skills/betterpost/SKILL.md on agents
without a Skill tool).
BetterPost finds recent sources across news, social, and the open web, ranks them by relevance, and writes human-sounding content with real citations and publication dates. Free to start — sign in with your BetterPost account for free credits.
When NOT to reach for it
Do not use BetterPost for unrelated coding, research, or non-content tasks. It is specifically for creating written content grounded in current sources. If the user isn't asking for content, ignore this.
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 · 29 lines · 53 tokens per session scan A 426629947330
using-betterpost is a skill published in the GitHub repository betterpost/betterpost-plugin (0 stars, last pushed 21d ago), licensed MIT. It adds 53 tokens to every session and 286 once invoked, about $0.0003 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 2026-08-31.
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Build and review cross-cutting agent-host chat behavior through lifecycle contributions. Use when adding turn lifecycle side effects, prompt or context injection, restored-history transformation, protocol-action observation, or when reviewing changes that add code to AgentSideEffects or AgentService.
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