Getting it into your agent
This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.
/plugin marketplace add Marcel-Bich/marcel-bich-claude-marketplace/plugin install credoWrote 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/marcel-bich/marcel-bich-claude-marketplace/session-autonomous)<a href="https://agentmods.dev/skills/marcel-bich/marcel-bich-claude-marketplace/session-autonomous"><img src="https://agentmods.dev/badge/skills/marcel-bich/marcel-bich-claude-marketplace/session-autonomous/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/marcel-bich/marcel-bich-claude-marketplace/session-autonomous"><img src="https://agentmods.dev/badge/skills/marcel-bich/marcel-bich-claude-marketplace/session-autonomous.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 | $0.00342 | $0.12320 |
| Opus 5 | $0.00171 | $0.06160 |
| Sonnet 5 | $0.00068 | $0.02464 |
| Haiku 4.5 | $0.00034 | $0.01232 |
Grade A, and why
session-autonomous 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 7d 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 — 782 lines — stays where its author put it; the contents beside it link to each section on GitHub.
session-autonomous - work approved GO items unattended
A credo session runs in exactly one mode - active, passive, or autonomous - set by
the /credo:session-* commands and surfaced on every prompt by the session-mode inject
line. This skill is the umbrella for autonomous mode: the user is away, you work
approved GO items on your own, keep the session alive, respect the budget caps, notify via
ntfy, and hibernate cleanly at the end. It is the dach / umbrella over the credo building
blocks - it wires them together and adds the unattended-run machinery, and it duplicates
none of their content.
Autonomous mode is only in force while the autonomy flag credo-autonomy-active is set -
which is what the /credo:session-autonomous command sets (and it lifts the
credo-autonomy-paused opt-out). If that flag is not set, do not run the keep-alive or
hibernate behavior below.
Bootstrap - enter the mode only on an unambiguous grant
This skill may LOAD on a full-autonomy / AFK-handoff intent, but entering autonomous mode
requires an unambiguous, explicit user grant. If this skill loaded because the user just handed
off full-autonomy / unattended / AFK work and the mode is NOT yet set (no credo-autonomy-active
flag), FIRST enter autonomous mode by running /credo:session-autonomous. That command runs
session-mode-set.sh autonomous, sets the flag, and activates the rules below - which resolves the
chicken-and-egg problem of needing the mode set before this skill's keep-alive can apply. Then
follow the rules below. If the mode is already autonomous, skip this and continue.
Do NOT enter autonomous mode on a vague or casual signal (for example a bare "keep going", "carry on", "work on this"); only on an unambiguous full-autonomy / AFK grant such as "run this unattended", "go fully autonomous", or a clear AFK handoff. If unsure whether the user really wants unattended autonomy, stay in normal (non-autonomous) collaboration and confirm with the user first rather than setting the flag. A user who never asks for autonomy is never put into autonomous mode.
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.
- 7d ago Changed eead2a176bbd
- 11d ago First seen · 782 lines · 342 tokens per session scan A df1b8c32e42b
session-autonomous is a skill published in the GitHub repository Marcel-Bich/marcel-bich-claude-marketplace (13 stars, last pushed 2d ago), licensed MIT. It adds 342 tokens to every session and 12,320 once invoked, about $0.0017 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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