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-fast-follower-strategygit 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-fast-follower-strategy)<a href="https://agentmods.dev/skills/jeffreytse/grimoire-core/apply-fast-follower-strategy"><img src="https://agentmods.dev/badge/skills/jeffreytse/grimoire-core/apply-fast-follower-strategy/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-fast-follower-strategy"><img src="https://agentmods.dev/badge/skills/jeffreytse/grimoire-core/apply-fast-follower-strategy.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 | $0.00055 | $0.01635 |
| Opus 5 | $0.00028 | $0.00817 |
| Sonnet 5 | $0.00011 | $0.00327 |
| Haiku 4.5 | $0.00006 | $0.00163 |
Grade A, and why
apply-fast-follower-strategy 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 7d 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 — 68 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Apply Fast-Follower Strategy
Deliberately let a competitor pioneer and validate a new product category or market first, then enter with superior execution once real demand is proven — rather than defaulting to being first, since pioneers bear a disproportionate share of the cost of validating unproven demand and educating the market.
Why This Is Best Practice
Adopted by: Duan Yongping (段永平) has articulated 敢为天下后 ("dare to be behind" — deliberately not rushing to pioneer) as a specific, repeated strategic principle across his business career, most visibly in BBK Electronics' operating history — the company behind OPPO, vivo, and OnePlus's shared lineage — where multiple consumer-electronics categories were entered deliberately after competitors had already validated market demand, with execution and refinement as the differentiator rather than first-mover timing. Impact: A pioneer bears the cost of validating whether real demand exists at all, educating a market unfamiliar with the new category, and absorbing the mistakes of an unrefined early product before product-market fit is well understood — costs that a disciplined fast-follower avoids by entering only once these have already been resolved by the pioneer. Duan's documented business history shows category entries executed with observably fewer of the specific missteps the original pioneer made, precisely because those mistakes had already been made visible by the time of entry. Why best: Defaulting to "be first" treats speed-to-market as inherently valuable, when in many categories the actual value lies in serving proven, well-understood demand with superior execution rather than in being the first mover into unvalidated territory. A deliberate fast-follower strategy converts the pioneer's market-education and demand-validation effort into free information, entering only once that information is available — provided the follower moves decisively and executes well once the decision to enter is made, rather than simply lagging passively.
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.
- 7d ago First seen · 68 lines · 55 tokens per session scan A 2da717123e9c
apply-fast-follower-strategy is a skill published in the GitHub repository jeffreytse/grimoire-core (4 stars, last pushed 22d ago), licensed MIT. It adds 55 tokens to every session and 1,635 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 2026-09-03.
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