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/plurigrid/asi/entropy-sequencernpx skills add plurigrid/asi --skill entropy-sequencergit clone --depth 1 https://github.com/plurigrid/asiWrote 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/plurigrid/asi/entropy-sequencer)<a href="https://agentmods.dev/skills/plurigrid/asi/entropy-sequencer"><img src="https://agentmods.dev/badge/skills/plurigrid/asi/entropy-sequencer.svg" alt="Measured on agentmods" 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 | $0.00019 | $0.01062 |
| Opus 5 | $0.00010 | $0.00531 |
| Sonnet 5 | $0.00004 | $0.00212 |
| Haiku 4.5 | $0.00002 | $0.00106 |
Grade A, and why
entropy-sequencer 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 4d 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 — 154 lines — stays where its author put it; the contents beside it link to each section on GitHub.
entropy-sequencer
Layer 5: Interaction Interleaving for Maximum Information Gain
Version: 1.1.0 (music-topos enhanced) Trit: 0 (Ergodic - coordinates information flow) Bundle: core
Overview
Entropy-sequencer arranges interaction sequences to maximize learning efficiency. Instead of chronological replay, it reorders interactions to maximize information gain at each step, enabling 3x faster pattern learning.
Enhanced Integration: DuckDB + Hy
DuckDB SQL Backend
-- Compute entropy for message sequences
WITH message_features AS (
SELECT
message_id,
LENGTH(content) as msg_length,
LAG(LENGTH(content)) OVER (ORDER BY timestamp) as prev_length
FROM messages
WHERE thread_id = ?
),
entropy_scores AS (
SELECT
message_id,
ABS(msg_length - COALESCE(prev_length, msg_length)) as surprise
FROM message_features
)
SELECT
SUM(LN(surprise + 1)) as total_entropy
FROM entropy_scores;
Hy Implementation
;; From thread_relational_hyjax.hy
(defn entropy-maximized-interleave [messages]
"Arrange messages to maximize information gain at each step."
(setv remaining (list messages))
(setv result [])
(setv current-entropy 0.0)
(while remaining
(setv best-idx 0)
(setv best-gain -1000.0)
(for [i (range (len remaining))]
(setv candidate (+ result [(get remaining i)]))
(setv gain (information-gain candidate current-entropy))
(when (> gain best-gain)
(setv best-gain gain)
(setv best-idx i)))
(setv best-msg (.pop remaining best-idx))
(.append result best-msg)
(setv current-entropy (compute-message-entropy result)))
{:sequence result
:final-entropy current-entropy
:message-count (len result)})
Ruby Integration
# lib/world_broadcast.rb extension
module EntropySequencer
def self.greedy_max_entropy(interactions, seed: 0x42D)
remaining = interactions.dup
sequence = []
context = []
while remaining.any?
best_idx = 0
best_gain = -Float::INFINITY
remaining.each_with_index do |interaction, i|
gain = conditional_entropy(interaction, context)
if gain > best_gain
best_gain = gain
best_idx = i
end
end
best = remaining.delete_at(best_idx)
sequence << best
context << best
end
sequence
end
def self.conditional_entropy(item, context)
return 1.0 if context.empty?
# Entropy = log of variance from context mean
mean = context.sum.to_f / context.size
variance = (item - mean).abs
Math.log(variance + 1)
end
end
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.
- 4d ago First seen · 154 lines · 19 tokens per session scan A a5cc9253519e
entropy-sequencer is a skill published in the GitHub repository plurigrid/asi (62 stars, last pushed 1mo ago), licensed MIT. It adds 19 tokens to every session and 1,062 once invoked, about $0.0001 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 2026-09-01.
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