axis-axis2-c-core AGENTS.md

Security and testing instructions for Apache Axis2/C, a C-based engine for SOAP and REST web services. They describe its threat model and highlight SOAP, HTTP/2, JSON, XML parsing, and memory-safety areas.

In plain words
What is it for?
Use them when reviewing or testing Axis2/C, investigating security issues, examining SOAP or HTTP/2 request handling, or checking parser and memory-safety risks.
Why use it?
They help developers assess security findings in the context of how the project is actually deployed, especially where older SOAP paths remain important.

Instructions file for CodexOpenCode

Install

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.

agentmods
npx agentmods add instructions/apache/axis-axis2-c-core/agents-md
Clone the repo
git clone --depth 1 https://github.com/apache/axis-axis2-c-core

Made for: Codex, OpenCode.

Per session 1,947 This file is loaded in full into every session.
When invoked 1,947 The same file — it is already loaded in full.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What 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.

ModelPer sessionOnce invoked
Fable 5 $0.01947 $0.01947
Opus 5 $0.00974 $0.00974
Sonnet 5 $0.00389 $0.00389
Haiku 4.5 $0.00195 $0.00195

Measured 2d ago against content hash 51add2940f21, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

axis-axis2-c-core AGENTS.md 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.

AGENTS.md · 188 lines

How it starts

The opening of the file, as written. The whole thing — 188 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md — Apache Axis2/C

Security Threat Model

See SECURITY.md for the full threat model, including:

  • Project description (C-based SOAP/REST/JSON web services engine)
  • Roles and trust levels
  • Security boundaries: what is and is not a security issue
  • Attack surface by component (HTTP/2, JSON, XML parsers, memory safety)
  • Memory safety profile (buffer overflows, use-after-free, format strings)
  • Build-time hardening flags
  • Fuzz testing and OSS-Fuzz integration
  • Dependency version requirements

For detailed deployment hardening, see docs/SECURITY.md.

SOAP is the majority deployment

Recent work here targets JSON over HTTP/2, and the scan areas below reflect that. It is not the whole picture: Axis2/C is twenty years old and most installations run SOAP, so most security findings land on SOAP paths. Weight them accordingly rather than treating HTTP/2 JSON as the only live surface.

Both front ends handle SOAP. The JSON processor in apache2_worker.c is chosen at runtime by is_json_http2_request(), not compiled in unconditionally — the absence of #ifdef AXIS2_JSON_ENABLED around it does not mean SOAP was compiled out.

Before testing anything SOAP, read docs/userguide/soap-testing-guide.md. It records the setup traps that each produce a symptom reading as "SOAP is broken" while actually being a configuration mistake — a commented-out transportReceiver that segfaults the standalone server, an unregistered service whose 404 is answered by the JSON error handler, and build_for_tests.sh running make distclean over an existing configuration.

High-Priority Scan Areas

Modern Axis2/C deployments use HTTP/2 with pure JSON — not HTTP/1.1 with SOAP/XML. The scan should weight accordingly: HTTP/2 transport, JSON processing, and the mod_axis2 Apache handler are the primary attack surface. Legacy HTTP/1.1 and XML paths are secondary.

1. HTTP/2 Transport (primary production path)

Read the full file on GitHub · 188 lines

Changes

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.

  1. 2d ago First seen · 188 lines · 1,947 tokens per session scan A 51add2940f21

Subscribe to this mod's changes

axis-axis2-c-core AGENTS.md is an instructions file published in the GitHub repository apache/axis-axis2-c-core (15 stars, last pushed 4d ago), licensed Apache-2.0. It adds 1,947 tokens to every session, about $0.0097 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 2026-08-30.