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 digital-stoic-org/agent-skills/plugin install ringWrote 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/digital-stoic-org/agent-skills/sync)<a href="https://agentmods.dev/skills/digital-stoic-org/agent-skills/sync"><img src="https://agentmods.dev/badge/skills/digital-stoic-org/agent-skills/sync/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/digital-stoic-org/agent-skills/sync"><img src="https://agentmods.dev/badge/skills/digital-stoic-org/agent-skills/sync.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 | $0.00073 | $0.01636 |
| Opus 5.5 | $0.00029 | $0.00654 |
| Sonnet 5.5 | $0.00015 | $0.00327 |
| Haiku 4.5 | $0.00007 | $0.00164 |
Grade A, and why
sync 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 5d 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 — 73 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Sync
SYNC writes this conversation's own view of one ring to disk. First call on a ring with no file promotes it (inline → resumed); every later call checkpoints it. Format reference (cite by path, don't reopen it here): ${CLAUDE_PLUGIN_ROOT}/references/ring-file.md.
Common rules (all ring skills)
Disk commands go through absolute paths and /usr/bin/find, /usr/bin/grep, or python3 ${CLAUDE_PLUGIN_ROOT}/scripts/ring.py (every ring.py below means this) — bare find/grep are shimmed and fail silently. No git verb of any kind. No .bak files. A question to the human is posed in plain text, once, with A/B/C choices — never an interactive question tool.
Arguments
| Argument | Value | Required | Default |
|---|---|---|---|
[slug] |
the ring to sync | no | the ring this conversation currently carries; ask if unknown or ambiguous |
--dir |
absolute rings folder | no | dir of the ring's own file if it has one → dir: line of ${CLAUDE_PROJECT_DIR}/.claude/ring.local.md → cwd (realpath) |
--verbose |
print the full rewritten sections + the ring.py scan result |
no | off |
Steps
- Resolve slug and dir per the tables above.
- Locate the file: glob
ring-<slug>-llm.mdat the root of<dir>; if absent there, glob<dir>/done/. Found indone/→ refuse (table below) — aparked/donering is not sync's business,/open --resumereactivates it first. Promotion is only the case where the slug is absent from both locations. - Refuse before writing — table below.
- This conversation's write token: reuse whatever token this conversation already holds — from an earlier
/open --resume, an earlier/ring:synccall, or a promotion triggered by/open— and mint one only if it holds none yet. Format and precedence:${CLAUDE_PLUGIN_ROOT}/references/ring-file.md§2,carrierrow — cited, not restated here. - Compose and write — table below.
python3 ${CLAUDE_PLUGIN_ROOT}/scripts/ring.py scan <dir>. An anomaly on this ring is reported in the output, never repaired silently.- Output — one sentence.
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.
- 5d ago First seen · 73 lines · 73 tokens per session scan A 447635c4c902
sync is a skill published in the GitHub repository digital-stoic-org/agent-skills (20 stars, last pushed 2d ago), licensed MIT. It adds 73 tokens to every session and 1,636 once invoked, about $0.0003 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 2026-09-25.
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