plur-session-end

A session wrap-up tool that saves lasting project knowledge, such as corrections, preferences, decisions, and codebase conventions. It leaves out temporary details and sensitive information.

In plain words
What is it for?
Use it at the end of a session to record agreed practices, important corrections, project-specific terminology, and recurring technical gotchas.
Why use it?
It prevents useful lessons from being lost when a coding session ends, while avoiding a full recording of the conversation.

Skill for Claude CodeCodex

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 skills/plur-ai/plur/plur-session-end
Any agent
npx skills add plur-ai/plur --skill plur-session-end
Clone the repo
git clone --depth 1 https://github.com/plur-ai/plur

Made for: Claude Code, Codex.

Per session 35 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 950 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 $0.00035 $0.00950
Opus 5 $0.00017 $0.00475
Sonnet 5 $0.00007 $0.00190
Haiku 4.5 $0.00003 $0.00095

Measured yesterday against content hash 5679a2e7e92e, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

plur-session-end 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.

skills/plur-session-end/SKILL.md · 111 lines

How it starts

The opening of the file, as written. The whole thing — 111 lines — stays where its author put it; the contents beside it link to each section on GitHub.

PLUR Session End

Run this at the end of a conversation to extract what is worth remembering.

PLUR stores durable knowledge — corrections, conventions, preferences, decisions. It does not store session logs, one-off status, or anything that will be irrelevant next week. This skill enforces that discipline.

When to Use

  • The user says "wrap up", "end session", "we're done", or similar
  • The conversation is winding down after completing a task
  • You want to record what you learned before the context window closes

Procedure

Step 1 — Identify learning candidates

Scan the conversation for:

Category Examples
Corrections "No, the API returns snake_case" / "Don't use X, use Y"
Preferences "Always run lint before committing" / "User prefers concise explanations"
Codebase conventions "This project uses repository pattern" / "Tests live in __tests__/"
Decisions "We chose PostgreSQL for ACID compliance"
Gotchas "The staging env needs NODE_ENV=staging, not production"
Terminology "They call it a 'slot' not a 'channel'"

Step 2 — Filter ruthlessly

Skip:

  • Anything already obvious from reading the codebase
  • Session-specific state ("we're working on the login page right now")
  • One-off status ("the build was red this morning")
  • Anything you are not confident about
  • Secrets, credentials, API keys — never

Step 3 — Write each learning as a durable assertion

Format: a single clear statement that will make sense to a future agent with no session context.

Good: "The publish script requires npm 2FA — always run 'npm publish' interactively, never from CI."

Bad: "We talked about the publish issue."

Step 4 — Assign metadata

For each learning, determine:

  • type: correction | preference | convention | decision | gotcha | fact
  • domain: the project, library, or topic area (e.g., "plur", "typescript", "project:acme")
  • scope: the scope of applicability (e.g., "global", "project:acme")
  • tags: 2–5 descriptive tags

Read the full file on GitHub · 111 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. yesterday First seen · 111 lines · 35 tokens per session scan A 5679a2e7e92e

Subscribe to this mod's changes

plur-session-end is a skill published in the GitHub repository plur-ai/plur (243 stars, last pushed 2d ago), licensed Apache-2.0. It adds 35 tokens to every session and 950 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 2026-08-30.

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