Install
$ agentstack add skill-sandsower-beislid-envelope ✓ scanned · ✓ verified, works with Claude Code, Cursor, and more.
Security review
✓ PassedNo issues found. Passed automated security review. · v0.1.0 How review works →
- ✓ Prompt-injection patterns
- ✓ Secret / credential exfiltration
- ✓ Dangerous shell & filesystem operations
- ✓ Untrusted network calls
- ✓ Known-malicious package signatures
What it can access
- ✓ Network access No
- ✓ Filesystem access No
- ✓ Shell / process execution No
- ✓ Environment & secrets No
- ✓ Dynamic code execution No
From automated source analysis of v0.1.0. “Used” means the capability is present in the source — more access means more to trust, not that it’s unsafe.
Verified badge
Passed review? Show it. Paste this badge into your README, it links to the public security report.
Reliability & compatibility
Declared compatibility
Compatibility is declared by the source manifest. End-to-end runtime verification is coming, see below.
We're building live execution health for every listing: tool-call success rate, median latency, uptime, and last-checked timestamps, measured, not self-reported. It isn't live yet, so we don't show numbers we can't stand behind.
How agent discovery & health will work →About
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 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: /.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 /.beislid/workflow.md and validate line 1 is exactly `; hard-fail and stop if missing or wrong (run /setup for fresh projects). Initialize the probe cache exactly as kickoff does (repohash, workflowhash, ${BEISLIDSTATEDIR:-$HOME/.local/state/beislid}/probes/.json, fresh/stale/cold). Print orientation prose from envelope-templates.md` (≤240 chars).
For durable evidence, best-effort beislid run-ledger init --skill envelope --flow envelope with ticket/branch context when known. Warn on ledger failure; never block.
Step protocol loading
Complete steps in order. At each step entry, read the step aux file and follow it as the authoritative protocol. If a step file cannot be read, hard-fail and stop:
> 🛑 Could not read skills/envelope/.md. Envelope cannot safely execute this step from memory; reinstall Beislið or restore the file.
Checklist and required outputs
- Intake — read
step-1-intake.md. Outputs: input kind, planning context (approved structure/Work Contract or planning-skill results), candidate slices, bundle-id. - Author — read
step-2-author.md. Outputs: one draftexecution-envelope-v0per AFK-candidate slice with autonomy lists, proof requirements, pause conditions, dependencies, expected delivery, self-contained prompt, repo pin. - Approve — read
step-3-approve.md. Outputs: per-envelope verdicts (approve / reject / demote-to-HITL), approval metadata, or the zero-AFK terminal state. - Export — read
step-4-export.md. Outputs: validated bundle path,envelope_exportedcheckpoint status, commit status, handoff guidance. - Revise — revision mode only, loaded straight from Step 1 in place of Steps 2–4: read
step-5-revise.md. Outputs: v+1 bundle rewritten in place withsupersedes:, per-envelope delta summary, delta-only re-approval verdicts (unchanged approved envelopes carry their original approval metadata forward), validated re-export.
Global tripwires
- Fail-closed: unapproved envelopes are never exported. Zero approved envelopes means no bundle, no checkpoint, no commit — print the verdict summary and recommend
kickofffor HITL slices. - No implementation. This skill plans, packages, and exports; it never starts the work it is packaging.
- Manifest input means revision mode. Step 1 detects it (a JSON file whose
kind/schemamatches export/manifest contracts) and looks for feedback: a delivery artifact withpause_reason/review_feedback, or a non-approved bundle status. With feedback, route throughstep-5-revise.md; an approved manifest with no feedback is refused with the nothing-to-revise message. Never overwrite or re-author silently. - Existing bundle dir is a hard stop in non-revision runs.
.beislid/exports//already existing means a prior export; overwriting would corrupt the supersede chain. Stop with the collision message; the user must pick a new bundle-id or delete deliberately. Revision mode is the one exception: it rewrites the same dir in place with a bumped version andsupersedeshash. - Validator is the gate.
beislid export validatemust exit 0 before checkpoint or commit. Never hand-wave a failed validation. - Reuse planning skills (
spec,break-spec,blueprint) for thinking work; never reimplement their protocols here. - Policy-check every side effect (workspace writes, checkpoint,
git.commit);askrequires approval,denystops with manual fallback.
Run end
Write back probed capability entries to the probe cache as kickoff does (exclude session_skip, preserve doctor-owned fields). Finalize the run ledger with verdicts, bundle path, validator evidence, and commit status when active.
Key principles
- One strong-model session produces a self-contained bundle; a cheaper session executes it later.
- Explicit human verdicts per envelope, in one sitting; rejects never block the batch.
- Everything after approval is mechanical: documented JSON conventions + a read-only validator.
Source & license
This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.
- Author: sandsower
- Source: sandsower/beislid
- License: MIT
Install and usage instructions live in the source repository linked above.
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Versions
- v0.1.0 Imported from the upstream source.