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 bookforge-ai/bookforge-skills --skill multi-principle-stacking-plannergit clone --depth 1 https://github.com/bookforge-ai/bookforge-skillsWrote 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/bookforge-ai/bookforge-skills/multi-principle-stacking-planner)<a href="https://agentmods.dev/skills/bookforge-ai/bookforge-skills/multi-principle-stacking-planner"><img src="https://agentmods.dev/badge/skills/bookforge-ai/bookforge-skills/multi-principle-stacking-planner/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/bookforge-ai/bookforge-skills/multi-principle-stacking-planner"><img src="https://agentmods.dev/badge/skills/bookforge-ai/bookforge-skills/multi-principle-stacking-planner.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 | $0.00280 | $0.06385 |
| Opus 5 | $0.00140 | $0.03193 |
| Sonnet 5 | $0.00056 | $0.01277 |
| Haiku 4.5 | $0.00028 | $0.00639 |
Grade A, and why
multi-principle-stacking-planner 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 9d 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.
The source is not reproduced here
Licensed CC-BY-SA-4.0
The repository is licensed CC-BY-SA-4.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 9d ago First seen · 501 lines · 280 tokens per session scan A 54a87beab068
multi-principle-stacking-planner is a skill published in the GitHub repository bookforge-ai/bookforge-skills (35 stars, last pushed 4mo ago), licensed CC-BY-SA-4.0. It adds 280 tokens to every session and 6,385 once invoked, about $0.0014 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.
Other skills, from other repositories
building-story-stakes
Teaches five named techniques for creating and sustaining narrative tension in any story. Applies when a founder needs to hold an audience's attention through a pitch, investor update, all-hands talk, or customer case study. Use when a narrative feels flat, when attention wanders mid-presentation, or when the…
cialdini-influence
Applies Cialdini's seven principles of ethical persuasion -- Reciprocity, Commitment and Consistency, Social Proof, Authority, Liking, Scarcity, and Unity -- to business contexts including sales, marketing, fundraising, and negotiation. Use when designing conversion funnels, optimizing sales processes, preparing…
influencing-and-persuading
Provides founders with Socratic influence techniques, confidence projection methods, and patience-based persuasion strategies for converting stakeholders without overt selling. Covers idea-seeding (making others believe your idea is theirs), the paradox of persuasion (listening as the primary influence tool)…
neuro-linguistic-programming
Applies NLP techniques for rapport-building, reframing, anchoring, and meta-model questioning in business communication. Covers representational system matching, pacing and leading, and linguistic precision tools. Use when preparing for investor pitches, improving sales close rates, navigating board disagreements…
persuasion-and-influence
Equips leaders with daily micro-influence tactics -- reading emotional temperature in meetings, deploying peer power, establishing authority organically, using consistency commitments, and knowing when to compromise. Use when preparing for a difficult one-on-one, navigating a meeting where buy-in is needed, responding…
story-structure-and-arc
Teaches the five-second moment principle, the relationship between surface spectacle and underlying transformation, and the But and Therefore technique for creating narrative momentum. Use when a pitch or presentation feels flat despite containing good material, when a founder's narrative lacks forward movement, when…