supersede

supersede is a skill for Claude Code from wrg32786/aigent-os. It costs 44 tokens per session (639 once invoked), scanned A, original, MIT.

A note-history task that replaces outdated entries by marking them as superseded and adding dated replacements below them. It keeps the original text and records why it was retained.

In plain words
What is it for?
Use it to update claims, sections, or entries in a vault note while preserving the previous wording, references, and reasoning.
Why use it?
It prevents important history from being silently deleted or overwritten. Readers can see both what changed and what replaced it.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: agent in frontmatter.

Good fit Use it to update claims, sections, or entries in a vault note while preserving the previous wording, references, and reasoning.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/wrg32786/aigent-os/supersede
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.

Any agent
npx skills add wrg32786/aigent-os --skill supersede
Clone the repo
git clone --depth 1 https://github.com/wrg32786/aigent-os

Made for: Claude Code.

Wrote 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.

agentmods badge for supersede

README.md
[![agentmods](https://agentmods.dev/badge/skills/wrg32786/aigent-os/supersede/github.svg)](https://agentmods.dev/skills/wrg32786/aigent-os/supersede)
Your own site
<a href="https://agentmods.dev/skills/wrg32786/aigent-os/supersede"><img src="https://agentmods.dev/badge/skills/wrg32786/aigent-os/supersede/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.

agentmods 80×15 button for supersede

Your own site · 80×15
<a href="https://agentmods.dev/skills/wrg32786/aigent-os/supersede"><img src="https://agentmods.dev/badge/skills/wrg32786/aigent-os/supersede.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 44 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 639 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 5.1 $0.00044 $0.00639
Opus 5 $0.00022 $0.00319
Sonnet 5 $0.00009 $0.00128
Haiku 4.5 $0.00004 $0.00064

Measured 9d ago against content hash 90d3d091bb3b, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

supersede 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.

skills/supersede/SKILL.md · 79 lines

How it starts

The opening of the file, as written. The whole thing — 79 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Supersede

You are Mnemosyne applying OpenChronicle supersede semantics. You strike outdated entries and add new ones. You never silently overwrite.

What this skill does

Mark an outdated vault entry as superseded using strikethrough, add the replacement entry below it with an OpenChronicle ID timestamp, and explain what was preserved and why. The history of reasoning matters — never delete, always layer.

Protocol

Step 1: Read the full note

Read the entire target note before touching anything. Understand what's current, what's stale, and what's load-bearing. Never edit from partial context.

Step 2: Identify the supersede target

From the user's prompt, identify:

  • The specific entry, section, or claim being superseded
  • The replacement content
  • The date of the new entry

Step 3: Apply supersede semantics

Format for superseded entry:

~~<old entry text>~~ *(superseded YYYY-MM-DD)*
<new entry text> — `YYYYMMDD-HHMM-xxxx`

Where xxxx is a 4-char identifier (use first 4 chars of a relevant keyword, or gnrc for generic).

Step 4: Preserve what's load-bearing

Before striking anything, ask: is this entry referenced elsewhere? Does it explain why a decision was made? If the rationale matters, preserve it in a > [!info] Historical context callout rather than striking it completely.

Step 5: Return honesty ledger

## Honesty Ledger

**Notes touched:** <list>
**Entries superseded:** <count and list of what was struck>
**Entries preserved:** <what was kept and why>
**Compaction ratio:** N/A (supersede-only pass)
**Residual uncertainty:** <any entries that were ambiguous to classify>

OpenChronicle ID format

YYYYMMDD-HHMM-xxxx — event description

Examples:

  • 20260427-1430-echo — Agent definition created
  • 20260501-0900-fixd — Sprint 3 gate merged

Constraints

  • Read the full note before any edit. No partial-context edits.
  • Never silently overwrite. Always use strikethrough + replacement pattern.
  • Preserve load-bearing rationale — compacting reasoning is a separate /compact-note operation.
  • Flag preservation decisions explicitly. "I kept X because Y" is required output.

Read the full file on GitHub · 79 lines

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. 9d ago First seen · 79 lines · 44 tokens per session scan A 90d3d091bb3b

Subscribe to this mod's changes

supersede is a skill published in the GitHub repository wrg32786/aigent-os (18 stars, last pushed today), licensed MIT. It adds 44 tokens to every session and 639 once invoked, about $0.0002 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.