attach_image.attach_image(path) raises TypeError: module not callable (costs a failed tool step per image)

[vladzima]

Bug

Bundled Python skills laid out as <skill>/<skill>.py (attach_image, websearch) expose the submodule under the skill name. So attach_image.attach_image is a module, and:

await attach_image.attach_image("/tmp/shot.png")
# TypeError: 'module' object is not callable

Models try that spelling first in practice. In my logs, 8 of 8 sessions since 2026-09-01 that attached an image hit this TypeError, then retried with await attach_image(path). That is one wasted failed tool step per image, every time.

Version: prime-agent 0.9.4. Repro: any session, ask the agent to look at a PNG, watch the first attach_image.attach_image(...) cell fail.

Proposed fix

In _prime_agent_wrap_skill_module (src/core/tools/ipython.ts), set <module>.<short_name> = run on the wrapped module when that attribute is not already callable. await attach_image(...) and .run(...) are unchanged; await attach_image.attach_image(...) works too.

Ready branch with a kernel test that fails without the alias and passes with it (5 lines of code + 19 lines of test):
https://github.com/vladzima/prime-agent/tree/fix/skill-module-self-name-alias
(diff: main...vladzima:prime-agent:fix/skill-module-self-name-alias)

PR #2221 was auto-closed by the vouch bot; happy to reopen if a maintainer invites it.

Validation: npx vitest --run test/kernel-attach-image-skill.test.ts 10 passed; new test fails with the TypeError when ipython.ts is stashed; biome clean on touched files.