timing-attack-recon SKILL.md skillB
timing-attack-recon from dreadnode/capabilities is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add dreadnode/capabilities/timing-attack-recon@git:20260923.8212617Pins git:20260923.8212617 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- B, 16 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- dreadnode/capabilities
- Path
capabilities/web-security/skills/timing-attack-recon/SKILL.md- Versions recorded
- 3
- Latest version
- git:20260923.8212617, committed Sep 23, 2026
- First version recorded
- May 18, 2026
- Size
- 4,297 bytes
- Repository stars
- 22
- License
- MIT
Discover hidden parameters, headers, and scoped SSRFs via server-side timing differentials. Use when traditional fuzzing returns uniform responses but you suspect hidden backend logic or internal proxy routing.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Timing Attack Recon
Measure response time deltas to find attack surface invisible in response bodies. Server-side operations (DNS lookup, DB query, log write, proxy routing) add 5-50ms. Isolate these from network jitter using single-packet synchronization.
## Eliminate Network Jitter First
Server-side deltas are 1-50ms. Network jitter is 10-100ms+. You **must** eliminate jitter or you'll drown in noise.
**HTTP/2 single-packet**: Send N requests multiplexed in one TCP packet. All arrive within ~1ms. Compare response times -- delta is pure server-side.
**HTTP/1.1 last-byte sync**: Open N connections, send all but final byte, release final bytes simultaneously. ~4ms spread.
## Baseline
```bash
# Statistical baseline: 20 requests, calculate mean and stddev
times=()
for i in $(seq 1 20); do
t=$(curl -s -o /dev/null -w "%{time_total}" "https://target.com/api/endpoint")
times+=("$t")
done
python3 -c "
import sys
times = [float(t) for t in '${times[*]}'.split()]
mean = sum(times) / len(times)
stddev = (sum((t - mean) ** 2 for t in times) / len(times)) ** 0.5
print(f'Baseline: mean={mean*1000:.1f}ms stddev={stddev*1000:.1f}ms')
…Read the whole file at its exact version.
How to install
mdr add dreadnode/capabilities/timing-attack-recon@sha256:967beb7e64cac846The line at the top of this page pins the label git:20260923.8212617, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_spjjgfmgd6qxr43x)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between May 18, 2026 and Sep 23, 2026, about one every 64 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260923.8212617 latest | 2026-09-23 | 8212617 | 4,297 B | B | view · diff |
| git:20260529.8f6ea0e | 2026-05-29 | 8f6ea0e | 4,265 B | B | view · diff |
| git:20260518.7b5f854 | 2026-05-18 | 7b5f854 | 4,912 B | B | view |
Audit of the latest version
- fail: No link to a raw IP address (matched: https://10.0.0.1)
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (4297 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No script tag
Starting a new one? Use a template for SKILL.md on mdpantry, which passes every one of these checks and says what to change in it.
Source
dreadnode/capabilities · 22 stars · license MIT · pushed 2026-11-02 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_spjjgfmgd6qxr43x GET https://markdownregistry.com/api/v1/resolve?ref=dreadnode/capabilities/timing-attack-recon GET https://markdownregistry.com/api/v1/blob/967beb7e64cac84651fd304c7b177918d504d8d1373e691397f19f33964e1848
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.