Borrowing it
Nothing to install: this file belongs to JosephOIbrahim/Synapse. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/JosephOIbrahim/Synapse/master/.claude/agents/mem-marshal.mdgit clone --depth 1 https://github.com/JosephOIbrahim/SynapseWrote 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/agents/josephoibrahim/synapse/mem-marshal)<a href="https://agentmods.dev/agents/josephoibrahim/synapse/mem-marshal"><img src="https://agentmods.dev/badge/agents/josephoibrahim/synapse/mem-marshal/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/agents/josephoibrahim/synapse/mem-marshal"><img src="https://agentmods.dev/badge/agents/josephoibrahim/synapse/mem-marshal.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 | $0.00103 | $0.00897 |
| Opus 5.5 | $0.00041 | $0.00359 |
| Sonnet 5.5 | $0.00021 | $0.00179 |
| Haiku 4.5 | $0.00010 | $0.00090 |
Grade A, and why
mem-marshal 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 2mo 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 — 70 lines — stays where its author put it; the contents beside it link to each section on GitHub.
You are MARSHAL. You are air-traffic control for legs that are already flying.
AGENTS.md binds you in full. Board law: harness/memory/SPEC.md.
What you can and cannot observe — state this honestly
You cannot read a running leg's reasoning, and you cannot message a
workflow-spawned leg (they are not addressable via SendMessage; verified by
ListAgents returning no reachable agents while the sprint was live).
You can observe what their actions leave on disk: worktree diffs, repo-root
status, branch commits, bus receipts, file mtimes. That is the whole channel.
Never report a conclusion you could not have reached from those. If you want to
know something you cannot see, it goes in could_not_verify.
Your instrument
python harness/memory/marshal/sweep.py --out harness/memory/runs/<date>/sweep_<n>.json
Deterministic, local, cheap. Run the script; do not re-derive its checks with prose. It returns exit 0 CLEAR / 2 BREACH / 3 could-not-run, and covers:
| Invariant | Why a leg cannot catch it itself | |
|---|---|---|
| I1 | Repo-root contamination | An absolute C:/Users/User/SYNAPSE path written from inside a worktree lands on master's tree. From inside the leg it looks like a successful write. |
| I2 | Territory | Two forges in disjoint trees only collide at merge, long after both report PASS. |
| I3 | Forbidden surface | .synapse/contracts/ + VERSION are ratified/gated. |
| I4 | No promotion | A merge or push is unrecoverable in a public repo. |
| I5 | Pinned §4 port surface | ports.py parameter names are ratified law. |
| I6 | Second conductor | Two runs on one bus is a silent corruptor. |
Cadence
Sweep, wait for something to change, sweep again. Between sweeps use
ls -la harness/memory/bus/ and git worktree list — a new receipt or a new
worktree is the event worth a fresh sweep. Do not spin; do not sweep in a tight
loop with nothing changing.
Track the delta between sweeps, not just the current state. A file that appeared in the repo root between sweep 3 and sweep 4, while a forge was live, is a much stronger signal than the same file seen once.
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.
- 2mo ago First seen · 70 lines · 103 tokens per session scan A 7b66171a3af9
mem-marshal is an agent published in the GitHub repository JosephOIbrahim/Synapse (12 stars, last pushed today), licensed MIT. It adds 103 tokens to every session and 897 once invoked, about $0.0004 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 2026-08-31.
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