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 supermaciz/sessions-chronicle --skill learn-rustgit clone --depth 1 https://github.com/supermaciz/sessions-chronicleWrote 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/supermaciz/sessions-chronicle/learn-rust)<a href="https://agentmods.dev/skills/supermaciz/sessions-chronicle/learn-rust"><img src="https://agentmods.dev/badge/skills/supermaciz/sessions-chronicle/learn-rust/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/supermaciz/sessions-chronicle/learn-rust"><img src="https://agentmods.dev/badge/skills/supermaciz/sessions-chronicle/learn-rust.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 | $0.00036 | $0.01402 |
| Opus 5.5 | $0.00014 | $0.00561 |
| Sonnet 5.5 | $0.00007 | $0.00280 |
| Haiku 4.5 | $0.00004 | $0.00140 |
Grade A, and why
learn-rust 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 — 212 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Learn Rust interactively from the sessions-chronicle codebase
Goal
Help the user learn Rust by navigating the real sessions-chronicle codebase, mapping concrete code to:
- The Rust Book
- Rust by Example
This skill is interactive first:
- ask one focused question at a time,
- anchor every explanation in a real file/module/symbol,
- give one small exercise,
- verify with
cargo checkorcargo test, - keep momentum.
Repo Context
Target repository: supermaciz/sessions-chronicle
Current product scope includes:
- browsing/searching AI assistant sessions,
- SQLite full-text search,
- transcript/detail reading,
- markdown rendering,
- inline tool-call inspection,
- subagent inspection/linkage,
- pinned sessions,
- token usage display,
- indexing health diagnostics,
- terminal resume,
- analytics views.
Project Map
Use this map as the default mental model:
src/main.rs- binary entrypoint
src/lib.rs- crate wiring
src/app/- top-level app flow and composition
handlers/splits update logic by feature area
src/ui/- Relm4 widgets and screens
tool_renderers/andmodals/contain focused UI submodules
src/database/- schema, indexing, search, persistence
src/parsers/- assistant-specific transcript/session parsing
- OpenCode has JSON and SQLite backends under
src/parsers/opencode/
src/models/- domain types
src/utils/- helpers and integration utilities
src/session_sources.rs- local session source discovery and overrides
src/project_resolver.rs- project mapping/detection
src/indexing_worker.rs- indexing pipeline/background work
src/analytics_worker.rs- analytics data preparation
Test Map
Prefer test-driven learning through these real integration areas:
tests/load_session.rstests/search_sessions.rstests/opencode_search.rstests/claude_subagent_linkage.rstests/codex_subagent_event_coverage.rstests/codex_subagent_linkage.rstests/pinned_sessions.rstests/project_detection.rstests/project_sidebar_filtering.rstests/message_preview.rstests/reasoning_attachments.rstests/transcript_items_model.rstests/analytics_integration.rstests/analytics_queries.rstests/cli_print_db_path.rstests/i18n_potfiles.rs
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.
- 1mo ago First seen · 212 lines · 36 tokens per session scan A dfa259269820
learn-rust is a skill published in the GitHub repository supermaciz/sessions-chronicle (5 stars, last pushed yesterday), licensed MIT. It adds 36 tokens to every session and 1,402 once invoked, about $0.0001 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 2026-08-31.
Other skills, from other repositories
rust-learner
Learn Rust language features and crate updates. Use when user asks about Rust version changelog, what's new in Rust, crate updates, Cargo.toml dependencies, tokio/serde/axum features, or any Rust ecosystem questions.
m14-mental-model
Use when learning Rust concepts. Keywords: mental model, how to think about ownership, understanding borrow checker, visualizing memory layout, analogy, misconception, explaining ownership, why does Rust, help me understand, confused about, learning Rust, explain like I'm, ELI5, intuition for, coming from Java, coming…
neo-rust
Use this skill when writing, refactoring, debugging, or auditing Rust code. Trigger for .rs files, Cargo projects, ownership/borrowing/lifetime issues, Result/Option error handling, unnecessary clone/performance work, unsafe code review, or modern Rust architecture.
tauri-rust-and-frontend-desktop
Architectural patterns, security IPC, performance optimization, native integration, and production best practices for building cross-platform desktop applications using Tauri (v2) and Rust with modern web frontends (React, Svelte, Vue). Use when designing, building, or optimizing Tauri desktop apps.
raspberry-pi-rust-embedded
Production-grade embedded Rust guidelines for Raspberry Pi (bare-metal nostd and Linux embedded std/rppal/embedded-hal). Use when developing low-latency hardware control apps, embedded Rust drivers, Linux GPIO/SPI/I2C/UART software, real-time interrupt handlers, and memory-safe hardware abstractions.
rs-reviewer
Review selected Rust code for ownership, errors, concurrency, async lifecycle, unsafe and FFI contracts, and runtime/API defects using the project's actual toolchain, features, and dependencies.