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BC cert-lifecycle-harness

A harness for guiding humans through the full lifecycle of an X.509/TLS certificate renewal, replacement, or migration in complex infrastructures (CDN / LB / K8s / self-hosted gateway / mTLS). The skill turns "generate a renewal script" into a rigorous assistant workflow: (1) split review into L3 / L2 / L1 layers so every reviewer has a bounded time budget; (2) treat the Agent as "safety officer + document engineer + trusted executor", not an autonomous SRE; (3) enforce a six-gate protocol before any write API is executed on behalf of the user, and never execute Delete; (4) classify asset discovery as a graph closure (domain ↔ certificate), with wildcard fan-out, cross-zone authorization boundaries, and shadow certificate provenance; (5) adapt to the upcoming CA/B Forum validity shrinkage timeline (398 → 200 → 100 → 47 days). Use this skill whenever the user's question is about renewing, migrating, auditing, or hardening TLS certificates across real production systems — especially when the risks "expire = outage" and "one wrong field = P0" apply. Not intended for one-off `openssl req` examples or pure PKI theory.

ClawHub Agent Skills author: dima v1.0.0 MIT-0 32 files · 2 scripts body ≈ 4 658 tokens Open the sourceclawhub.ai↗ analyzed 3 d ago

As a process C 59/100 · Has gaps — weak spots: result and completion, inputs and preconditions, progress reporting

ProcedureKubernetesInfrastructuretype and topics are labelled automatically from the skill text
Runs in: OpenClaw Claude / Claude Code ChatGPT / Codex Gemini CLI Cursor GitHub Copilot / VS Code Qwen Code Kimi Code CLI Z.ai (GLM) DeepSeek (Deep Code) Mistral Vibe LangChain (deepagents) Goose OpenCode
JSON
Technical rating
B
81/100
safety, quality, tests
Safety 60%
89
Quality 40%
70
Run on models
none yet
Process rating
C
59/100
Has gaps
Result and completion w 14
0
Inputs and preconditions w 11
0
Progress reporting w 2
0
the three weakest of ten parameters · all ten

How to improve

  1. Shorten the description to 1024 characters.
For the model run — optional
  • Your own cases (evals/evals.json, 4–6 real requests with expected answers): the full check would then run those instead of a model-drafted suite.
  • A spec.yaml with trigger phrases and assertions — a behaviour contract for CI; `skilltest init` writes a template.

Guard findings · 11

✓ No critical or high findings

Medium and low: 11
  • low Dangerous commands cmd-privilege phases/runbook-templates/jks-rollover.sh.tpl.md:41
    Privilege escalation / world-writable permissions (documentation of a security skill)
    sudo cp "$KEYSTORE_PATH" "$BACKUP_DIR/keystore.jks.bak"
    security skill
  • low Dangerous commands cmd-privilege phases/runbook-templates/jks-rollover.sh.tpl.md:65
    Privilege escalation / world-writable permissions (documentation of a security skill)
    sudo cp -a "$BACKUP_DIR/keystore.jks.bak" "$KEYSTORE_PATH"
    security skill
  • low Dangerous commands cmd-privilege phases/runbook-templates/jks-rollover.sh.tpl.md:79
    Privilege escalation / world-writable permissions (documentation of a security skill)
    sudo cp -a "$BACKUP_DIR/keystore.jks.bak" "$KEYSTORE_PATH"
    security skill
  • low Dangerous commands cmd-privilege phases/runbook-templates/nginx-reload.sh.tpl.md:32
    Privilege escalation / world-writable permissions (documentation of a security skill)
    sudo cp -a "$NGINX_SSL_DIR/$CERT_NAME".* "$BACKUP_DIR/"
    security skill
  • low Dangerous commands cmd-privilege phases/runbook-templates/nginx-reload.sh.tpl.md:36
    Privilege escalation / world-writable permissions (documentation of a security skill)
    sudo cp "$NEW_CERT_SRC" "$NGINX_SSL_DIR/$CERT_NAME.fullchain.pem"
    security skill
  • low Dangerous commands cmd-privilege phases/runbook-templates/nginx-reload.sh.tpl.md:37
    Privilege escalation / world-writable permissions (documentation of a security skill)
    sudo cp "$NEW_KEY_SRC"  "$NGINX_SSL_DIR/$CERT_NAME.key"
    security skill
  • low Dangerous commands cmd-privilege phases/runbook-templates/nginx-reload.sh.tpl.md:38
    Privilege escalation / world-writable permissions (documentation of a security skill)
    sudo chmod 0644 "$NGINX_SSL_DIR/$CERT_NAME.fullchain.pem"
    security skill
  • low Dangerous commands cmd-privilege phases/runbook-templates/nginx-reload.sh.tpl.md:39
    Privilege escalation / world-writable permissions (documentation of a security skill)
    sudo chmod 0600 "$NGINX_SSL_DIR/$CERT_NAME.key"
    security skill

A further 3 matches are quotations in this security skill's documentation and are not counted as findings.

Files scanned: 32. Evidence is masked. Grey chips explain why severity was lowered.

Against the Agent Skills spec

  • error description-long description is 1131 chars, limit 1024

Process rating: all ten parameters 59/100

  • 0Result and completion. Does not say what the result is
  • 0Inputs and preconditions. Does not say what the process needs to start
  • 0Progress reporting. Says nothing while it works
  • 50Failures and branches. 0 branches, has a failure section
  • 60Tools and files. Uses tools (bash, web) that frontmatter does not declare
  • 70Execution cost. Instruction body is 4658 tokens
  • 100Steps. 56 steps
  • 100When it triggers. States when to use and when not to
  • 100Consistency. Name and required fields are in place
  • 100Running it twice. Mutating operations check current state
  • low 14 top-level sections: this looks like several domains in one skill

Everything here is measured from the skill text rather than judged by a model, so the numbers are checkable. A parameter weighs more when it is a more common reason for the process to stall.

Quality signals

  • +3Description length 1130: 120–800 characters recommended
  • +3Output format is not stated: the model decides each time
  • -274 emoji in the instructions: noise for the model
  • +1No license
  • +2Single-language instructions
  • +5Description quotes 4 example trigger phrases
  • +4Description says when NOT to use the skill
  • +4Structure: 36 headings
  • +3Step-by-step instructions: 56 items
  • +4Has examples (13 code blocks)
  • +4Reference files are cited in the instructions (9 of 9)
  • +3All 1 scripts are documented

Quality base 70; lint remarks subtract, signals add up to 100. Result: 70.

External checks

ClawHub: suspicious
The skill is a real certificate-renewal helper, but it needs Review because some templates can change or delete live certificate assets and its credential/file-write boundaries are not consistently scoped.
LLM: suspicious (high) · 28 May 2026