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Harden C/C++ binaries: RELRO, PIE, stack canaries v1.0.0

Use this resource to harden C or C++ binaries against exploits

New

  • 459 downloads
  • 164 likes
  • 172 saves

Free

Install with the CLI

In a terminal, from the folder you want:

npx --yes palatekit@latest install c-binary-hardening-flags

With no option, the skill goes to ~/.agents/skills/; add --agent claude-code (or codex, cursor…) to target an agent.

First time: connect the CLI with

npx --yes palatekit@latest login

The agent analyses a binary's protections with checksec, then suggests the compiler and linker flags to enable for RELRO, PIE, stack canaries, FORTIFY_SOURCE and CFI. It also helps restrict system calls with seccomp-bpf.

Mostly picked by

Updated November 2, 2026

Card for the “Harden C/C++ binaries: RELRO, PIE, stack canaries” skill

Details

Works in
Install guides
Generates with
Your agent's model
Licence
MIT

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What you get

  • SKILL.md: checksec analysis and hardening method
  • references/hardening-flags.md: compiler and linker flags

Good fit for

  • You are preparing a C or C++ release for production
  • An audit asks you to verify a binary's protections

Not for

    Tags

    • security
    • binaries
    • checksec
    • compilation

    About

    You say

    “Check my binary's protections with checksec and add RELRO, PIE and stack canaries to the build.”

    Card for the “Harden C/C++ binaries: RELRO, PIE, stack canaries” skill

    Skill published by mohitmishra786 under the MIT license, delivered in its original version.

    Show more

    How to use it

    1. Install the skill in your agent's skills folder
    2. Ask your agent to harden C or C++ binaries against exploits
    3. Review and adjust the result

    Content preview

    Files

    • LICENSE1.1 KB
    • NOTICE-PALATEKIT.md0.5 KB
    • references/hardening-flags.md3 KB
    • SKILL.md8 KB

    Origin and licence

    Listed unmodified

    Author
    mohitmishra786
    Source
    github.com/mohitmishra786/low-level-dev-skills/tree/bdc58472fa9f309ed1b3f7d985a0d8e9bd8f4608/skills/runtimes/binary-hardening
    Licence
    MIT

    Notice

    « binary-hardening » (mohitmishra786, MIT) livré dans sa version d'origine : fiche en français et en anglais par PalateKit.

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