A control layer for keeping long-running coding work consistent across sessions and tracking its progress, budgets, and stop state.

Use it to view session status, record progress, send one-time steering instructions, stop work, or resume it after an operator-approved pause.

It gives developers one place to see handoff notes, remaining work, spending limits, operator instructions, and whether a kill switch is active.

session — Skill for Claude Code by Snowflake-Labs

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 Snowflake-Labs/cocoplus --skill session

Clone the repo

git clone --depth 1 https://github.com/Snowflake-Labs/cocoplus

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/snowflake-labs/cocoplus/session/github.svg)](https://agentmods.dev/skills/snowflake-labs/cocoplus/session)

Your own site

<a href="https://agentmods.dev/skills/snowflake-labs/cocoplus/session"><img src="https://agentmods.dev/badge/skills/snowflake-labs/cocoplus/session/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/snowflake-labs/cocoplus/session"><img src="https://agentmods.dev/badge/skills/snowflake-labs/cocoplus/session.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 52 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,174 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.

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.

Model	Per session	Once invoked
Fable 5.1	$0.00052	$0.01174
Opus 5	$0.00026	$0.00587
Sonnet 5	$0.00010	$0.00235
Haiku 4.5	$0.00005	$0.00117

Measured 9d ago against content hash 0a97547d7dd6, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

session 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.

.cortex/skills/cocosession/session.skill.md · 90 lines

How it starts

The opening of the file, as written. The whole thing — 90 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Your objective is to manage CocoSession, the continuity and operator-control layer for long-running CocoPlus work.

Commands

$session status: read .cocoplus/session/PROGRESS.md, .cocoplus/session/CONTEXT.md, .cocoplus/session/iteration-budget.json, .cocoplus/session/budget-state.json, .cocoplus/session/status.json, .cocoplus/pod-state.json, .cocoplus/AGENT_STOP, and .cocoplus/STEER.md; report handoff freshness, active predicate state, queued work count, iteration budget, cost-budget state, terminal status, kill-switch state, and pending steering.
$session progress: show the four handoff sections from .cocoplus/session/PROGRESS.md: Done, In Progress, Next, Notes.
$session steer "<instruction>": write the instruction to .cocoplus/STEER.md. The UserPromptSubmit hook injects it once, appends a session event, then clears the file.
$session stop: create .cocoplus/AGENT_STOP with timestamp, operator, and reason. The PreToolUse hook blocks tool use while the sentinel exists.
$session resume: remove .cocoplus/AGENT_STOP after confirming the operator intends to resume.

Continuity Contract

Every CocoFlow or long-running operator session must be recoverable from files alone:

.cocoplus/session/PROGRESS.md is the human handoff.
.cocoplus/session/CONTEXT.md is machine-greppable predicate state in CLASS.key=value form.
.cocoplus/session/task-queue.jsonl records mid-session requests without replacing the active item.
New work is queued under Next unless the operator explicitly changes the current item.
.cocoplus/session/iteration-budget.json tracks cap, consumed turns, warning threshold, and stop state.
.cocoplus/session/budget-state.json tracks normal, reserve, or exhausted cost-budget state. Budget checks happen at stage boundaries only; in-flight stages are never interrupted.
.cocoplus/session/status.json and .cocoplus/pod-state.json use the canonical status vocabulary: running, paused, completed, exited, failed, idle, retired.

Read the full file on GitHub · 90 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.

9d ago First seen · 90 lines · 52 tokens per session scan A 0a97547d7dd6

Subscribe to this mod's changes

session is a skill published in the GitHub repository Snowflake-Labs/cocoplus (720 stars, last pushed 9d ago), licensed MIT. It adds 52 tokens to every session and 1,174 once invoked, about $0.0003 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.

Building agents LLM Project management agents agentskills cocoplus cocosession continuity cortex cortexai snowflake

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