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.
npx agentmods add skills/sandsower/beislid/envelopenpx skills add sandsower/beislid --skill envelopegit clone --depth 1 https://github.com/sandsower/beislidWhat 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 | $0.00086 | $0.01377 |
| Opus 5 | $0.00043 | $0.00688 |
| Sonnet 5 | $0.00017 | $0.00275 |
| Haiku 4.5 | $0.00009 | $0.00138 |
Grade A, and why
envelope 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 2d 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 — 55 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Envelope
Turn approved planning context into exported execution envelopes: one execution-envelope-v0 per AFK-ready slice, packaged as an approved-slice-plan-export-v0 bundle that rondo run-once --manifest <slice-manifest> can execute in a fresh session with zero additional context.
Trigger is explicit only. The human chooses which model/session pays for authoring. When kickoff classifies work as multi_slice/AFK-suitable it may recommend running /envelope in a strong-model session; it never auto-routes here, and this skill never auto-routes back.
Don't use this for: interactive implementation (use kickoff), PR handoff (ready-for-review), or running exported work (that's rondo's job — Beislið owns envelope/export semantics; rondo owns execution and run evidence; no runtime service).
Project config: <repo>/.beislid/workflow.md. Probe lazily per probe-semantics.md; policy-check side effects per action-policy-protocol.md. Output copy lives in envelope-templates.md. AFK eligibility is judged against a versioned rubric, resolved repo-override-first: a beislid:envelope block in workflow.md may set rubric_path (a repo-relative .md, no ..); otherwise the skill default afk-rubric.md applies.
Read workflow.md
Read <repo>/.beislid/workflow.md and validate line 1 is exactly <!-- beislid-workflow: v1 -->; hard-fail and stop if missing or wrong (run /setup for fresh projects). Initialize the probe cache exactly as kickoff does (repo_hash, workflow_hash, ${BEISLID_STATE_DIR:-$HOME/.local/state/beislid}/probes/<repo_hash>.json, fresh/stale/cold). Print orientation prose from envelope-templates.md (≤240 chars).
For durable evidence, probe(nopal_seam); on ok, best-effort nopal ledger init --skill envelope --flow envelope --json, else beislid run-ledger init --skill envelope --flow envelope (nopal-seam-protocol.md), with ticket/branch context when known. Warn on ledger failure; never block.
Step protocol loading
What ships with it
11 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 2d ago First seen · 55 lines · 86 tokens per session scan A 2168e328950a
envelope is a skill published in the GitHub repository sandsower/beislid (10 stars, last pushed 3d ago), licensed MIT. It adds 86 tokens to every session and 1,377 once invoked, about $0.0004 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 2026-08-31.
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