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 skills add jeffreytse/grimoire-core --skill apply-value-first-postinggit clone --depth 1 https://github.com/jeffreytse/grimoire-coreWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/jeffreytse/grimoire-core/apply-value-first-posting)<a href="https://agentmods.dev/skills/jeffreytse/grimoire-core/apply-value-first-posting"><img src="https://agentmods.dev/badge/skills/jeffreytse/grimoire-core/apply-value-first-posting/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/jeffreytse/grimoire-core/apply-value-first-posting"><img src="https://agentmods.dev/badge/skills/jeffreytse/grimoire-core/apply-value-first-posting.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What 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 5.1 | $0.00094 | $0.03157 |
| Opus 5.5 | $0.00038 | $0.01263 |
| Sonnet 5.5 | $0.00019 | $0.00631 |
| Haiku 4.5 | $0.00009 | $0.00316 |
Grade A, and why
apply-value-first-posting 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 1mo 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.
How it starts
The opening of the file, as written. The whole thing — 81 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Apply Value-First Posting
Post rarely on a personal feed reaching distant contacts, and make every post something that gives the viewer real value — a specific insight, a distilled takeaway, a novel observation — rather than a personal-life update or generic greeting, because low-value, frequent posts read as noise to anyone who isn't already close to you, while distant or senior contacts register your credibility only from content that is actually useful to them.
Why This Is Best Practice
Why best: A message that functions perfectly well to maintain a close relationship (a holiday greeting, a personal-life update) carries essentially zero information for a distant contact, because a genuinely close relationship doesn't require it — the people who actually know you well don't need a scheduled greeting to stay connected, and the people who don't know you well can't extract any signal about your competence or judgment from it. Distant contacts and senior figures, who receive far more incoming content than they can attend to, filter almost entirely on whether a piece of content is useful to them specifically — not on whether it demonstrates ongoing personal familiarity. This reframes a personal feed from a relationship-maintenance channel (which it is poorly suited for, at the frequency generic greetings require) into a low-frequency, high-signal credibility-broadcasting channel — a fundamentally different use requiring a different posting discipline.
Austin Kleon, "Show Your Work!" (2014): Kleon's central argument is that sharing your process, your discoveries, and your genuine points of view publicly — rather than only finished, polished self-promotion or unrelated personal content — is what makes someone findable and interesting to people who don't already know them, because it gives an outside observer something concrete and specific to evaluate and respond to. The book explicitly frames this as a deliberate practice of curation: sharing selectively and specifically, not broadcasting everything that happens in one's day.
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.
- 1mo ago First seen · 81 lines · 94 tokens per session scan A 9dacc381f459
apply-value-first-posting is a skill published in the GitHub repository jeffreytse/grimoire-core (5 stars, last pushed 5d ago), licensed MIT. It adds 94 tokens to every session and 3,157 once invoked, about $0.0004 per session on Opus 5.5. 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 2026-09-03.
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