event.range

A command that reads events from a selected branch and space by their sequence numbers. It can read forward or backward and optionally limit results to one event type.

In plain words
What is it for?
Use it to retrieve events between an inclusive starting sequence and an optional exclusive ending sequence, or to walk backward from a sequence.
Why use it?
It provides a precise way to inspect part of an event history instead of reading every event.

Command

Install

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.

agentmods
npx agentmods add commands/stratalab/strata-core/event.range
Clone the repo
git clone --depth 1 https://github.com/stratalab/strata-core
Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 84 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5 $0.00000 $0.00084
Opus 5 $0.00000 $0.00042
Sonnet 5 $0.00000 $0.00017
Haiku 4.5 $0.00000 $0.00008

Measured yesterday against content hash 74f5d0ff3f20, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

event.range 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.

crates/executor/idl/v1/prose/commands/event.range.md · 7 lines

What it actually says

Reads events from the selected branch and space by sequence range. The start sequence is inclusive and the optional end sequence is exclusive; reverse direction walks backward from the start sequence. An optional event type narrows the results.

Changes

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.

  1. yesterday First seen · 7 lines · 0 tokens per session scan A 74f5d0ff3f20

Subscribe to this mod's changes

event.range is a command published in the GitHub repository stratalab/strata-core (2 stars, last pushed 2d ago), licensed Apache-2.0. It costs nothing until one of its globs matches a file; then it loads 84 tokens. 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.